italictitle Taxobox name Helix texta image status EN status system IUCN2.3 status ref ref Heller J. 1996. http www.iucnredlist.org search details.php 9846 all Helix texta . http www.iucnredlist.org 2006 IUCN Red List of Threatened Species. Downloaded on 07 August 2007. ref regnum Animalia phylum Mollusca classis Gastropoda unranked superfamilia clade Heterobranchia br clade Euthyneura br clade Panpulmonata br clade Eupulmonata br clade Stylommatophora br informal group Sigmurethra superfamilia Helicoidea familia Helicidae genus Helix species H. texta binomial Helix texta binomial authority Mousson , 1861 synonyms Helix texta is a species of large, edible, air breathing land snail , a terrestrial animal terrestrial pulmonate gastropod mollusk in the family Helicidae , the typical snails. This species is Endemism endemic to List of non marine molluscs of Israel Israel . The size of the egg is 5.5 mm. ref name Barker Heller J. Life History Strategies . in Barker G. M. ed. http books.google.com books?id WlvX 9Wt0toC&hl The biology of terrestrial molluscs . CABI Publishing, Oxon, UK, 2001, ISBN 0 85199 318 4. 1 146, cited page 428. ref References reflist Category Helix Helicidae stub az Helix texta ca Helix texta es Helix texta pt Helix texta sr Helix texta ... more details
italictitle Taxobox name Helix goderdziana image image caption Helix goderdziana regnum Animal ia phylum Mollusca classis Gastropoda unranked superfamilia clade Heterobranchia br clade Euthyneura br clade Panpulmonata br clade Eupulmonata br clade Stylommatophora br informal group Sigmurethra superfamilia Helicoidea familia Helicidae subfamilia genus Helix gastropod Helix subgenus species H. goderdziana binomial Helix goderdziana binomial authority Mumladze, Tarkhnishvili & Pokryszko, 2008 ref name Mumladze Mumladze L., Tarkhnishvili D. & Pokryszko B.M. 2008. A new species of the genus Helix from the Lesser Caucasus sw Georgia . Journal of Conchology, volume 39, part 5, page 483, published June 2008. http www.conchsoc.org resources show abstract 39.php?id 20 20 20 20 20 20 20 20 20 20 20 20147 abstract ref synonyms Helix goderdziana is a species of large air breathing land snail , a terrestrial animal terrestrial pulmonate gastropod mollusk in the family Helicidae , the typical snail. This is the largest species in the genus Helix . ref name Mumladze Distribution This species occurs in the Lesser Caucasus in southwestern List of non marine molluscs of Georgia country Georgia ref name Mumladze Biotope This snail lives in humid montane forest ref name Mumladze References reflist Category Helix Category Animals described in 2008 Helicidae stub az Helix goderdziana ... more details
DISPLAYTITLE 3 sub 10 sub helix Image 3 10 helix neg49 neg26 sideview.png thumb right 250px Side view of an 3 sub 10 sub helix of alanine residues in atom ic detail. Two hydrogen bonds to the same peptide group are highlighted in magenta the oxygen hydrogen distance is 1.83 183 pm . The protein chain runs upwards, i.e., its N terminus is at the bottom and its C terminus at the top of the figure. Note that the sidechains point slightly downwards , i.e., towards the N terminus. A 3 sub 10 sub helix is a type of secondary structure found rarely in protein s. Structure The amino acids in a 3 sub 10 sub helix are arranged in a right handed helix helical structure. Each amino acid corresponds to a 120 turn in the helix i.e., the helix has three residues per turn , and a translation of 2.0 0.2 nm along the helical axis, and has 10 atoms in the ring formed by making the hydrogen bond. Most importantly, the amine N H group of an amino acid forms a hydrogen bond with the carbonyl C O group of the amino acid three residues earlier this repeated i 3 i hydrogen bonding defines a 3 sub 10 sub helix. Similar structures include the Alpha helixhelix i 4 i hydrogen bonding and the Pi helixhelix i 5 i hydrogen bonding . Image 310 helix topview.png thumb left 225px Top view of the same helix shown to the right ..., corresponding to 3.0 amino acid amino acid residues per turn of the helix. Residues in 3 sub ... residue sum to roughly 75 . For comparison, the sum of the dihedral angles for an helix is roughly 105 , whereas that for a helix is roughly 125 . The general formula for the rotation angle per residue of any polypeptide helix with trans isomers is given by the equation math 3 cos Omega 1 4 cos 2 left frac varphi psi 2 right . math See also alpha helix pi helix secondary structure References ... Category Protein structural motifs Category Helices protein stub de 3 Helix es H lice 310 ja ... more details
Image Lambda repressor 1LMB.png 200px thumb The &lambda repressor of bacteriophage lambda employs a helix turn helix left green to bind DNA right blue and red . In protein s, the helix turn helix HTH is a major structural motif capable of binding DNA . It is composed of two alpha helix helices joined ... not be confused with the helix loop helix domain. ref name pmid2644244 cite journal author Brennan RG, Matthews BW title The helix turn helix DNA binding motif. journal J Biol Chem year 1989 volume 264 issue 4 pages 1903 6 pmid 2644244 doi pmc url ref Discovery The discovery of the helix turn helix motif was based on similarities between several genes encoding transcription regulatory proteins ... Nature year 1982 volume 298 issue 5873 pages 443 7 pmid 7088190 doi pmc url ref Function The helix turn helix motif is a DNA binding motif. The recognition and binding to DNA by helix turn helix ... at the C terminus . In most cases, such as in the Cro repressor, the second helix contributes most to DNA recognition, and hence it is often called the recognition helix . It binds to the major ... interactions with exposed base pair bases . The other helix stabilizes the interaction between protein ... The recognition helix and its preceding helix always have the same relative orientation. ref name ... of helix turn helix motifs Several attempts have been made to classify the helix turn helix motifs based ..., Iyer LM title The many faces of the helix turn helix domain transcription regulation and beyond. journal ... The tri helical helix turn helix motif is the simplest helix turn helix motif. It consists only ..., Sarai A et al. title Solution structure of a DNA binding unit of Myb a helix turn helix related motif ... helix turn helix motif has an additional C terminal helix compared to the tri helical motifs. These include the LuxR type DNA binding HTH domain found in bacterial transcription factors and the helix turn helix motif found in the TetR repressors. ref name pmid8153629 cite journal author Hinrichs W ... more details
italictitle Taxobox name Helix melanostoma image image caption shells of Helix melanostoma status status ref regnum Animal ia phylum Mollusca classis Gastropoda unranked superfamilia clade Heterobranchia br clade Euthyneura br clade Panpulmonata br clade Eupulmonata br clade Stylommatophora superfamilia Helicoidea familia Helicidae genus Helix gastropod Helix species H. melanostoma binomial Helix melanostoma binomial authority Jacques Philippe Raymond Draparnaud Draparnaud , 1801 ref Jacques Philippe Raymond Draparnaud Draparnaud J. P. R. 1801 . Tableau des mollusques terrestres et fluviatiles de la France . pp. 1 2 , 1 116. Montpellier, Paris. ref Helix melanostoma is a species of air breathing land snail , a Terrestrial animal terrestrial pulmonate gastropod mollusk in the family biology family Helicidae , the typical snails. Distribution List of non marine molluscs of France France ref http www.onem france.org escargots wakka.php?wiki HelixMelanostomaCarto accessed 22 June 2010. ref References reflist External links http www.animalbase.uni goettingen.de zooweb servlet AnimalBase home species?id 1602 Category Helix Helicidae stub az Helix melanostoma fr Helix melanostoma ... more details
unreferenced date June 2011 A helix building is a small structure at the base of a longwave or mediumwave radio transmitter . Within, there are capacitor s and Inductor coil s for coupling the signal from the feed cable to the Antenna radio antenna . Active components such as amplifier s are usually not housed in a helix building. The interior of the helix building is typically covered with copper or aluminium, in order to control stray radiation. For safety, helix buildings must be secured, due to the dangerously high voltages which may be present inside. The helix building, which may be a simple switchbox for small transmitters, is sometimes also the base of a mast radiator . See also Radio Frequency Power Transmission Category Radio terminology radio comm stub ... more details
italictitle Taxobox name Helix mazzullii image Monte Cofano Cantareus mazzullii 0038.JPG status VU status system IUCN2.3 status ref ref Manganelli, G. 2000. http www.iucnredlist.org search details.php 40099 all Cantareus mazzullii . http www.iucnredlist.org 2006 IUCN Red List of Threatened Species. Downloaded on 06 August 2007. ref regnum Animalia phylum Mollusca classis Gastropoda unranked superfamilia clade Heterobranchia br clade Euthyneura br clade Panpulmonata br clade Eupulmonata br clade Stylommatophora br informal group Sigmurethra superfamilia Helicoidea familia Helicidae genus Helix genus Helix species H. mazzullii binomial Helix mazzullii binomial authority De Cristofori & Jan, 1832 synonyms Cantareus mazzullii br Cornu mazzullii Helix mazzullii , also known as Cantareus mazzullii or Cornu mazzullii , is a species of large, edible, air breathing land snail , a terrestrial animal terrestrial pulmonate gastropod mollusk in the family Helicidae , the typical snails. This species is Endemism endemic to List of non marine molluscs of Italy Italy . It is threatened by habitat loss . References reflist External links commonscat Helix mazzullii http www.animalbase.uni goettingen.de zooweb servlet AnimalBase home species?id 2741 Animal Base info Category Helix Category Fauna of Italy Category Endemic fauna of Italy Helicidae stub az Helix mazzullii es Cantareus mazzullii it Cornu mazzullii pt Cantareus mazzullii ... more details
Infobox company name Helix logo File Helix logo.jpg 250px caption type Privately held company Private traded as genre Only used with media and publishing companies fate predecessor successor foundation 1887 founder defunct location city Lye, West Midlands location country United Kingdom location locations area served Worldwide key people industry Stationery products services revenue operating income net income aum Only used with financial services companies assets equity owner num employees parent divisions subsid homepage http www.helix.co.uk index.php Helix footnotes intl Helix is a family run United Kingdom based manufacturer of scholastic stationery . It currently employes 75 people, and exports to over 65 countries, with offices in Chicago and Hong Kong and with UK headquarters based in Lye, West Midlands . History Helix was established in 1887, under the name The Universal Woodworking Company Ltd. , manufacturing wooden Ruler rules and metal laboratory apparatus.In 1894 it patented the Compass drafting drawing compass , and with it, launched the Helix brand, following on from the initial success of the compass and rule, in 1912 the companies first mathematical set was created and in 1935 the brand Helix Oxford was launched. 1955 saw the company become known as the Helix Universal ... again changed to its current name Helix International Ltd. . Brands Helix Splat and Tribe fashion stationery Helix Oxford high quality mathematical instruments and stationery Helix Technical technical ... 2012. The company made the following announcement, Over the last few months, the Directors of Helix have been working towards a financial restructuring with the aim of securing the future of the Helix brand, its business and employees. The administration is an integral part of this process and Helix ... to achieve our objective . We will, of course, keep you informed of developments as they occur. Helix Ltd 25th January 2012. External links http www.helix.co.uk index.php Helix UK company stub Category ... more details
A Polyproline Helix is a type of protein secondary structure , which occurs in proteins comprising repeating proline residues. A left handed polyproline II helix PPII , poly Pro II is formed when sequential ... bond s. Similarly, a more compact right handed polyproline I helix PPI , poly Pro I is formed ... likely to adopt the cis isomer. Polyproline II helix Image poly Pro II topview.png left thumb 200px Top view of a twenty residue poly Pro II helix, showing the three fold symmetry. The PPII helix is defined ... angle per residue of any polypeptide helix with trans isomers is given by the equation ..., dihedral angles into this equation yields almost exactly 120 , i.e., the PPII helix is a left handed helix since is negative with three residues per turn 360 120 3 . The rise per residue is approximately ... Side view of a poly Pro II helix, showing its openness and lack of internal hydrogen bonding. The PPII helix is relatively open and has no internal hydrogen bond ing, as opposed to the more common helical secondary structure s, the alpha helix and its relatives the 3 10 helix 3 sub 10 sub helix and the pi helix , as well as the beta helixhelix . The amide nitrogen and oxygen atoms are too far ... amino acid glycine . The analog of the poly Pro II helix in poly glycine is called the poly Gly II helix . Polyproline I helix Image poly Pro I sideview.png left thumb 200px Side view of the poly Pro I helix, showing its greater compaction. The poly Pro I helix is much denser than the PPII helix ..., but not identical to, those of the PPII helix. However, the PPI helix is a right handed helix and more ... helix is also much smaller, roughly 1.9 . Again, there is no internal hydrogen bonding in the poly Pro I helix, both because an H bond donor atom is lacking and because the amide nitrogen and oxygen ... thumb 200px Top view of a twenty residue poly Pro I helix, showing its non integer number of residues ... the PPII and PPI helix forms of poly proline are slow, due to the high activation energy of X ... more details
Taxobox image Helix engaddenis.jpg image caption Helix engaddensis waking up after estivation . status NE www.iucnredlist.org . Downloaded on 23 February 2009. ref regnum Animal ia phylum Mollusca classis Gastropoda unranked superfamilia clade Heterobranchia br clade Euthyneura br clade Panpulmonata br clade Eupulmonata br clade Stylommatophora br informal group Sigmurethra superfamilia Helicoidea familia Helicidae genus Helix gastropod Helix species H. engaddensis binomial Helix engaddensis binomial authority Bourguignat, J. R. 1852 Helix engaddensis is a species of snail common in the Levant , both in Mediterranean climate Mediterranean , desert climate desert and montane climates. It is smaller than the closely related European Garden snail and usually lighter in color. H. engaddensis goes through estivation . It is dormant in the ground during the dry season and emerges after the first rains in late autumn . Mating takes place soon after emerging. The snails are active through winter except in high montane regions, where they might be forced into a somewhat unnatural hibernation and return to an inactive state at the end of the wet season midspring . ref http www.archive.org stream malacologia181979inst malacologia181979inst djvu.txt ref References Reflist Category Helix Helicidae stub ... more details
Image Pi helix neg55 neg70 sideview.png thumb right 250px Side view of a standard helix of L alanine residues in atom ic detail. Two hydrogen bond s to the same peptide bond peptide group are highlighted ... point slightly downwards , i.e., towards the N terminus. A pi helix or helix is a type of secondary ... of a single amino acid into an helix . ref name pmid20888342 cite journal doi 10.1016 j.jmb.2010.09.034 ... Weaver TM year 2000 title The pi helix translates structure into function journal Protein science ... and amino acid propensities for the pi helix journal Protein Eng volume 15 issue 5 pages 353 358 ... helix are arranged in a right handed helix helical structure. Each amino acid corresponds to a 87 turn in the helix i.e., the helix has 4.1 residues per turn , and a translation of 1.15 ngstr m ... i 5 i hydrogen bonding defines a helix. Similar structures include the 310 helix 3 sub 10 sub helix i 3 i hydrogen bonding and the Alpha helixhelix i 4 i hydrogen bonding . Image Pi helix topview.png thumb left 150px Top view of the same helix shown above. Four carbonyl groups are pointing ... acid amino acid residues per turn of the helix. The majority of helices are only 7 residues in length ... residues in the helix are misleading. Some generalizations can be made, however. When the first ... sub helix is roughly 75 , whereas that for the helix is roughly 105 . Proline is often seen immediately ... polypeptide helix with trans isomers is given by the equation math 3 cos Omega 1 4 cos 2 left left phi psi right 2 right math Left handed structure In principle, a left handed version of the helix ... helix has roughly the same number of residues per turn 4.1 and helical pitch 1.5 angstroms or 150 ... are still made. A long left handed helix is unlikely to be observed in proteins because, among the naturally ... . See also alpha helix 3 10 helix secondary structure References reflist Protein secondary structure Category Protein structural motifs Category Helices protein stub de Helix es H lice pi ja ... more details
italic title Taxobox name Helix fossil range fossil range Oligocene Recent image Snail1web.jpg image caption Garden snail Helix aspersa on Limonium regnum Animal ia phylum Mollusca classis Gastropoda unranked ... genus Helix genus authority Carl Linnaeus Linnaeus , 1758 subdivision ranks Species subdivision See ... Schultes, accessed 1 April 2009. ref Helix is a genus of large air breathing land snails , Terrestrial ... around the Mediterranean Sea . Helix is the type genus of the family Helicidae . The best known species include Helix aspersa , the common, or brown garden snail, and Helix pomatia , the Roman snail, Burgundy snail, or edible snail. Helix pomatia H. pomatia and some other species are eaten as escargot s. Helix snails have been introduced throughout the world, where some, especially H. aspersa , have become garden pests. The genus Helix is known from the Oligocene on. ref Ivanov .... Species Subgenera and species within the genus Helix include today Subgenus HelixHelix albescens Rossmaessler, 1839 Helix lucorum Linnaeus , 1758 Helix pomatia Linnaeus , 1758 Burgundy Snail, Roman Snail, Edible Snail Helix philibinensis Rossm ssler, 1839 Subgenus Pelasga Helix pomacella Mousson, 1854 Helix figulina Rossm ssler, 1839 Subgenus Cornu Helix aspersa M ller, 1774 brown garden snail or common garden snail also known as Cantareus aspersus and Cornu aspersus Subgenus ? Helix aperta Born, 1778 Helix engaddensis Bourguinat, 1852 Levantine field snail Helix buchi Dubois de Montp reux, 1839 largest species of the genus Helix , a synonym ref Sysoev, A. & Schileyko, A. 2009. Land snails and slugs of Russia and adjacent countries. pp. 1 312, Fig. 1 142. Sofia. Pensoft . ref is Helix ... B.M. 2008. A new species of the genus Helix from the Lesser Caucasus sw Georgia . Journal of Conchology ... 39.php?id 20 20 20 20 20 20 20 20 20 20 20 20147 abstract ref . Helix godetiana ref Mylonas, M. 1996. Helix godetiana. In IUCN 2006. 2006 IUCN Red List of Threatened Species. www.iucnredlist.org . Downloaded ... more details
italictitle Taxobox name Helix lutescens image Slimak lutescens.jpg image caption Four shells of Helix lutescens status NE regnum Animal ia phylum Mollusca classis Gastropoda unranked superfamilia clade Heterobranchia br clade Euthyneura br clade Panpulmonata br clade Eupulmonata br clade Stylommatophora br informal group Sigmurethra superfamilia Helicoidea familia Helicidae genus Helix gastropod Helix species H. lutescens binomial Helix lutescens binomial authority Carl Linnaeus Linnaeus , 1758 Helix lutescens is species of air breathing land snail , a Terrestrial animal terrestrial pulmonate gastropod mollusk in the family Helicidae , the true snails. This species of snail creates and uses calcareous love darts . Distribution Not listed in IUCN red list not evaluated NE ref 2006 IUCN Red List of Threatened Species. www.iucnredlist.org . Cited 2 April 2007. ref Its native distribution is peri carpathian . ref in Slovak Lisick M. J. 1991 Mollusca Slovenska The Slovak molluscs . VEDA vydavate stvo Slovenskej akad mie vied, Bratislava, 344 pp. ref List of non marine molluscs of Poland Poland Near Threatened NT, mentioned as lower risk LR ref http www.iop.krakow.pl pckz opis.asp?id 256&je pl Helix lutescens Polska Czerwona Ksi ga Zwierz t Bezkr gowce Bot generated title ref ref pl Polska Czerwona Ksi ga Zwierz t Bezkr gowce ref List of non marine molluscs of Slovakia Slovakia References reflist Category Helix Helicidae stub az Helix lutescens de Podolische Weinbergschnecke pl limak tawy ... more details
About the Central Connecticut State University publication the science fiction magazine Helix SF The Helix ... generated artwork . It is a student run and funded publication. History of the Helix Central ... class in volume 3 of the 1957 Contemporary . In 1977 the first issue of the Helix appeared in an attempt ... a stapled binding. The book was very small in size and it stayed that way until the Helix s five ... and continue the tradition of having a literary magazine at CCSU. The first Helix book came out ... the Helix from being able to produce a high quality product. As the Helix grew in the 1990 s, the cover ... had perfect binding a flat side with no staples . The Helix had evolved into a book. In the early 2000 s, the Helix began to incorporate more Art pieces and had entire sections dedicated to art. Slowly the Helix is expanding and growing more pages. The most recent issues have had over 150 pages and was filled with many different writing and art genres. Currently, the Helix is now trying to incorporate music into its issues. The Helix Magazine has also hit a milestone as it will be celebrating its 35th anniversary issue in the Fall of 2012. The Helix is planning many events in order to give ... According to CCSU s September 29, 1999 edition of The Recorder , In 1990 the Helix was awarded a yearly ... and editing process. In the Fall of 2007, The Helix began collaborating with the Connecticut Review , or CT Review . The 2007 2008 Primere issue of The Helix had guest editors faculty advisors ... work was featured in New Britain Museum of American Art then printed in the magazine. Currently, the Helix ... to make up for the number of people leaving in the future years. The Helix Today The Helix ... methods include holding big events such as Helix branded open mic nights also known as the Helix Collider , giving away Helix items such as pens and lanyards, and printing more issues of the Helix Magazine so that more people can get a copy of the new issue. The Helix has been attempting to use the multiple ... more details
italictitle Taxobox name Helix aperta image Helix aperta.jpg image caption Helix aperta status NE status ref ref 2006 IUCN Red List of Threatened Species. www.iucnredlist.org . Cited 8 May 2007. ref regnum Animal ia phylum Mollusca classis Gastropoda unranked superfamilia clade Heterobranchia br clade Euthyneura br clade Panpulmonata br clade Eupulmonata br clade Stylommatophora br informal group Sigmurethra superfamilia Helicoidea familia Helicidae genus Helix gastropod Helix species H. aperta binomial Helix aperta binomial authority Ignaz Edler von Born Born , 1778 ref Ignaz Edler von Born Born ... 40 , 1 458, 1 82 . Vindobonae. ref synonyms Cantareus apertus Helix aperta , also known as Cantareus apertus ref For those who regard Cornu as available and who classify Helix aperta and Helix aspersa in the same genus and do not like to use Helix for them, the name should be Cornu apertum , but this combination ... biology family Helicidae , the typical snails. Distribution Helix aperta is native to Europe primarily near the Mediterranean Sea , and also North Africa . Distribution of Helix aperta include ... 2010 Western Australia nonindegenous ref http www.ento.csiro.au aicn name s b 1880.htm 2. Helix ... Bulletin 27 113 132. http dillonr.people.cofc.edu Cowie et al 2009.pdf PDF . ref File Helix aperta 2.jpg left thumb dorsal view of Helix aperta File Cantareus apertus 01Schultes.JPG left thumb shells of Helix aperta Description The gastropod shell shell is with periostracum of green olive colour. ref ... Ecology Helix aperta inhabits Mediterranean shrublands, near cultivated fields, gardens. ref name ... of Helix aperta This species of snail makes and uses love darts . References This article incorporates ... servlet AnimalBase home species?id 1382 Species summary for Helix aperta . AnimalBase , last modified ... apertus NCBI 145123 Helix aperta Use dmy dates date October 2010 Category Helix Category Agricultural pests unreferenced DEFAULTSORT Helix Aperta az Helix aperta de Grunzschnecke it Cantareus apertus ... more details
Pfam box Symbol bHLH Name basic helix loop helix DNA binding domain image Basic helix loop helix.png width caption Basic helix loop helix structural motif of aryl hydrocarbon receptor nuclear translocator ARNT . Two alpha helix helices blue are connected by a short turn biochemistry loop red . ref ... , PDB2 1nkp , PDB2 1nlw , PDB2 1r05 , PDB2 1ukl , PDB2 2ql2 A basic helix loop helix bHLH is a protein ... MW, Rivera RR, Stuiver MH title Structure and function of helix loop helix proteins journal Biochim ... pmid7553065 cite journal author Littlewood TD, Evan GI title Transcription factors 2 helix loop helix ... name pmid10611221 cite journal author Massari ME, Murre C title Helix loop helix proteins regulators ... cgi pmidlookup?view long&pmid 10611221 ref Structure The motif is characterized by two alpha helix ... are protein dimer dimeric , each with one helix containing base chemistry basic amino acid residues .... H. Freeman location San Francisco year pages isbn 0 7167 8635 4 oclc doi ref In general, one helix ... another helix. The larger helix typically contains the DNA binding regions. bHLH proteins typically ... Chaudhary J, Skinner MK title Basic helix loop helix proteins can act at the E box within the serum ... protein, have the helix loop helix structure but lack the basic region, making them unable to bind ... Interactions between heterologous helix loop helix proteins generate complexes that bind specifically ... factor E47 E box recognition by a basic region helix loop helix dimer journal Genes Dev. volume ... that the parallel 4 helix bundle motif loop orients the basic sequences to interact with specific ... helix loop helix PAS heterodimer regulated by cellular O2 tension journal Proc. Natl. Acad. Sci ... Martha L. last7 Walhout first7 Albertha J.M. pmc 2774807 ref Human proteins with helix loop helix DNA ... Reflist 2 External links http prosite.expasy.org PDOC00038 PDOC00038 in PROSITE MeshName Basic Helix Loop Helix Transcription Factors Transcription factors g1 Category Protein domains Category Protein ... more details
taxobox regnum Plantae unranked divisio Angiosperms unranked classis Eudicots unranked ordo Asterids ordo Lamiales familia Lentibulariaceae genus Utricularia subgenus Utricularia subg. Polypompholyx Polypompholyx sectio Utricularia sect. Pleiochasia Pleiochasia species U. helix binomial Utricularia helix binomial authority P.Taylor 1986 Utricularia helix is an annual plant annual affixed aquatic carnivorous plant that belongs to the genus Utricularia family Lentibulariaceae . It is endemism endemic to Western Australia . ref name Taylor 1989 Taylor, Peter. 1989 . The genus Utricularia a taxonomic monograph . Kew Bulletin Additional Series XIV London. ref See also List of Utricularia species References Reflist Utricularia Category Carnivorous plants of Australia Category Eudicots of Western Australia Category Utricularia helix Category Lamiales of Australia Lentibulariaceae stub WesternAustralia plant stub Australia asterid stub zh ... more details
A helix bundle is a small protein tertiary structure fold composed of several alpha helix alpha helices that are usually nearly parallel or antiparallel to each other. Three helix bundles Image Villin 1qqv.png thumb 300px An example of the three helix bundle fold, the headpiece structural domain domain from the protein villin as expressed in chicken s PDB ID 1QQV . Three helix bundles are among the smallest and fastest known cooperatively folding structural domains. ref cite journal last1 Wickstrom first1 L last2 Okur first2 A last3 Song first3 K last4 Hornak first4 V last5 Raleigh first5 DP last6 Simmerling first6 CL. year 2006 title The unfolded state of the villin headpiece helical subdomain ... issue 5 pages 1094 107 pmid 16797585 doi 10.1016 j.jmb.2006.04.070 ref The three helix bundle in the villin ... helix protein and characterization of its free energy landscape in an all atom force field url ... bibcode 2005PhRvL..94a8101H ref There is no general sequence motif associated with three helix bundles ... helix bundles often occur in actin binding protein s and in DNA binding protein s. Four helix bundles Four helix bundles typically consist of four helices packed in a coiled coil arrangement with a steric ... stabilized by salt bridge protein salt bridges between charged amino acids. The helix axes typically ..., four helix bundles can be protein dimer dimer s of coiled coil pairs, as in the Rop protein . Four helix bundle can have thermal stability more than 100 . Other examples of four helix bundles include .... The four helix bundle fold has proven an attractive target for de novo protein design , with numerous de novo four helix bundle proteins having been successfully designed by rational ref name Regan ... pmc 2279937 ref methods. Although sequence is not conserved among four helix bundles, sequence patterns ... lmb.cam.ac.uk scop data scop.b.b.h.html SCOP nucleic acid binding three helix bundles http scop.mrc lmb.cam.ac.uk scop data scop.b.b.db.html SCOP four helix bundles http scop.mrc lmb.cam.ac.uk ... more details
Helix the Cat is a science fiction fantasy short story by Theodore Sturgeon . The story was written in 1939 or 1940 and submitted to John W Campbell. The editor rejected it, as he felt it didn t fit into either fantasy or science fiction categories. The manuscript was placed in storage, thought lost by the author, and returned to him about thirty years later. It was published, without any alterations, in Astounding The John W Campbell Memorial Anthology , in 1973. Plot introduction The story is narrated by Pete Tronti, a struggling inventor . Plot summary Whilst experimenting with a new form of glass he is trying to perfect, Pete is astonished to hear a disembodied voice from within the bottle he is working with. The voice announces itself to be the soul of Wallace Gregory, who has just died in a road accident. He is hiding from Them, who search out and eat souls. Gregory persuades Tronti to create a body for him and eventually he takes possession of the body of Helix, Tronti s pet cat . Between them, they then create a modified body for Helix. But when Helix Gregory start to take over Tronti s life, he decides he has no option but to kill the cat. Helix escapes and goes into business as a cat burglar. Theodore Sturgeon Category 1973 short stories Category Short stories by Theodore Sturgeon sf story stub ... more details
Infobox protein family Symbol Collagen Name Collagen triple helix image 1K6F Crystal Structure Of The Collagen Triple Helix Model Pro Pro Gly103 04.png width caption Model of a collagen helix. ref name pmid11790836 cite journal author Berisio R, Vitagliano L, Mazzarella L, Zagari A title Crystal structure of the collagen triple helix model Pro Pro Gly 10 3 journal Protein Sci. volume 11 issue 2 pages 262 70 year 2002 month February pmid 11790836 pmc 2373432 doi 10.1110 ps.32602 url ref Pfam PF01391 InterPro IPR008160 SMART PROSITE SCOP 1a9a TCDB OPM family OPM protein PDB PDB2 1q7d , PDB2 1rj7 , PDB2 1rj8 Image Fibers of Collagen Type I TEM.jpg thumb Transmission electron microscopy TEM image of collagen fibres. In collagen , the collagen helix , or type 2 helix, is a major shape in secondary structure . It consists of a triple helix made of the repetitious amino acid sequence glycine X Y, where X and Y are frequently proline or hydroxyproline . ref cite journal author Bhattacharjee A, Bansal M title Collagen structure the Madras triple helix and the current scenario journal IUBMB Life volume 57 issue 3 pages 161 72 year 2005 month March pmid 16036578 doi 10.1080 15216540500090710 ref Each of the three chains is stabilized by the steric repulsion due to the pyrrolidine rings of proline and hydroxyproline residue chemistry residue s. The pyrrolidine rings keep out of each other s way when the polypeptide chain assumes this extended helical form, which is much more open than the tightly coiled form of the alpha helix . The three chains are hydrogen bond ed to each other. The Hydrogen bonding Bonding hydrogen bond donors are the peptide NH groups of glycine residues. The Hydrogen bonding Bonding hydrogen bond acceptors are the CO groups of residues on the other chains. The OH group of hydroxyproline also participates in hydrogen bonding. The rise of the collagen helix superhelix ... Collagen Helix Category Protein structural motifs Category Helices Category Protein families Category ... more details
Infobox Piercing name Helix piercing nicknames Cartilage ring image Helix piercing.jpg image size 200px location helix ear Cartilage jewelry Captive bead ring , stud healing time 6 to 12 months The helix piercing is a perforation of the helix ear helix or upper ear cartilage for the purpose of inserting and wearing a piece of jewelry . The piercing itself is usually made with a small gauge hollow piercing needle, and typical jewelry would be a small diameter captive bead ring , or a stud. Sometimes, two helix piercings hold the same piece of jewelry, usually a Barbell piercing barbell , which is called an industrial piercing . Piercing process A sterile needle is pushed through the cartilage and then kept in while the jewelry is added. This can be painful, depending on the individual s pain threshold, and bleeding and swelling are expected after the piercing process, especially if the jewelry is bumped or snagged on hair or clothing. Piercing gun s can also be used though not recommended due to sudden shock to the ear. Healing can take much longer, approximately up to 3 years. After care Like all new piercings, helix piercings should not be touched except for cleaning. Contact with other body fluids, pools, puddles, makeup and beauty sprays, etc. is generally discouraged. Unwashed hands carry bacteria and may cause infections. Twisting the jewellery is also not recommended as this can tear and irritate the fistula the healing skin inside the hole which can lead to hypertrophic scarring, a prolonged healing period, migration and in some cases rejection of the piercing. Piercings should be cleaned daily during the initial healing time but not excessively as cleaning too frequently ... as this can cause damage to the healing tissue . Healing The helix piercing can take up to twelve months ... three months. References Reflist Body Piercing DEFAULTSORT Helix Piercing Category Ear piercing de Helix Piercing nl Helixpiercing no Helixpiercing ru ... more details
Italic title Taxobox name Roman snail image Helix pomatia 89a.jpg image caption Helix pomatia regnum ... superfamilia Helicoidea familia Helicidae subfamilia Helicinae tribus Helicini genus Helix gastropod Helix species H. pomatia binomial Helix pomatia binomial authority Carl Linnaeus Linnaeus , 1758 ... ref IUCN Red List of Threatened Species http www.iucnredlist.org apps redlist details 156519 0 ref Helix ... snails.JPG left thumb Cooked snails are called escargot Distribution File Helix pomatia Presence in European countries.png thumb Distribution map of Helix pomatia showing the European countries where the species is present Distribution of Helix pomatia include south eastern and central Europe ref name ... per soort landmollusken wetenschappelijk helix pomatia Helix pomatia . Stichting Anemoon, accessed ... of Portugal Portugal Greece Description File Helix pomatia Nl2H.jpg thumb Apertural and abapertural view of a gastropod shell shell of Helix pomatia File Helix pomatia reproductive system.jpg thumb Reproductive system of gastropods Reproductive system of Helix pomatia The gastropod shell shell is creamy ... In south eastern Europe Helix pomatia lives in forests and open habitats, gardens, vineyards, especially .... ref name AB File Weinbergschnecke Paarung.jpg left thumb A pair of Helix pomatia in courtship, shortly before mating File Helix pomatia head mating.jpg left thumb Drawing of head of mating Helix pomatia with everted penis and dart sac shooting a love dart File Helix pomatia laying eggs 2.png left thumb Drawing of Helix pomatia laying eggs Eggs are laid in June and July, in clutches of 40 65 eggs ... creates a calcareous epiphragm in order to seal the opening of the shell. File Helix pomatia hibernation.png left thumb Drawing of helix pomatia during hibernation . File Helix pomatia operculum hg.jpg left thumb Photo of the shell with an epiphragm. File Helix pomatia epiphragma.jpg left thumb Epiphragm of Helix pomatia Conservation This species is listed in IUCN red list as Least Concern ... more details
Infobox school name Helix School image imagesize streetaddress 120 Main city Helix, Oregon Helix county Umatilla County, Oregon Umatilla County state Oregon zipcode 97835 country flagcountry USA coordinates coord 45.850828 118.653792 type edu source googlemaps region US OR display inline,title geocoded street address and centered on entrance type Public school government funded Public affiliation accreditation district Helix School District principal Darrick Cope ref name osaa profile http www.osaa.org schools.aspx Griswold ref ref name ode directory cite web url http www.ode.state.or.us pubs directory school directory september 2008.pdf title Oregon School Directory 2008 09 publisher Oregon Department of Education pages 139 accessdate 2009 05 28 ref grades K 12 ref name ode directory students 155 ref name ode directory rival mascot Grizzlies ref name osaa profile mascot image team name colors Kelly green, white, and black color strip border color black border style dotted border 1 4CBB17 white black ref name osaa profile conference OSAA Big Sky League 1A 6 ref name osaa profile newspaper opened homepage http www.helix.k12.or.us www.helix.k12.or.us picture Helix School is a public high school in Helix, Oregon , United States . Academics In 2008, 91 of the school s seniors received their high school diploma . Of 11 students, 10 graduated, 0 dropped out, and 1 was still in high school. ref cite news url http www.oregonlive.com education index.ssf 2009 06 high school dropout rates.html title State releases high school graduation rates date 2009 06 30 work The Oregonian accessdate 2009 07 01 ref ref cite web url http blog.oregonlive.com education impact 2009 06 Dropout Rates.xls title Oregon dropout rates for 2008 date 2009 06 30 work The Oregonian accessdate 2009 07 01 ref References reflist Category High schools in Umatilla County, Oregon Category Middle schools in Oregon Category Elementary schools in Oregon Oregon school stub ... more details
Infobox musical artist name Helix image Helix band .jpg caption Helix in concert at the Friendship Festival ... br Kaleb Duckman Duck past members See Former members Former members section Helix are a Canada Canadian ... in 2011. Helix have toured with bands such as KISS band KISS , Aerosmith , Rush band Rush , M tley ... Bones . History Early years 1974 1982 Helix were formed in 1974 for a battle of the bands contest ... tuxedo on stage. Their original name was The Helix Field Band , soon shortened to simply Helix. ref ... Metal Mansion Interview with Helix vocalist Brian Vollmer publisher Hairbangersradio.ning.com date ... after, Helix scored some crucial shows as Del Shannon s backing band on some Canadian dates. However ... with Helix through the 80s, and drummer Brian Doerner , Brent s twin brother. Brian Doerner only ... under Kitchener s William Seip, Helix released two Independent music independent albums on their own H&S Records, entitled Breaking Loose Helix album Breaking Loose and White Lace & Black Leather , in 1979 and 1981 respectively. During the sessions for Breaking Loose , Helix recorded a cover version cover of the Del Shannon hit Thinkin It Over , unreleased until the 1999 Helix CD B Sides Helix ... their image from that of a standard bar band to a more image conscious metal band, Helix finally ... for the Wicked Helix album No Rest for the Wicked , with Greg Fritz Hinz ex Starchild band Starchild ... look. Under Seip s advice, Helix dropped their T shirts and jeans in favour of leather clothing ... book cite book author Vollmer, Brian title Gimme An R the story of Brian Vollmer, lead vocalist of Helix ... in a pornographic video titled Electric Blue 26 . In 1985, Helix released their fifth album Long Way ... www.fullinbloommusic.com helixinterview.html title fullinbloom interview with Brian Vollmer of Helix ... by the release of Wild in the Streets Helix album Wild in the Streets in 1987, featuring the title ... , was plagued by extensive takes and remixes. ref cite web url http carlbegai.com 2009 06 21 helix ... more details
b Helix b is a male United Kingdomer who has been a disc jockey and music producer since the 1990s, whose real name is Matt Carlton. small References 1 small He has been DJing in the happy hardcore scene and producing hardcore techno music since the mid 1990s. small References 1 small He has released approximately 35 CDs since 1995 and appeared on many happy hardcore compilations including prestigious Bonkers compilation Bonkers and million selling Dancemania Speed . small References 1 small The 2001 happy hardcore special compilation Dancemania Speed Presents Trance Ravers Trance Ravers featured his track Now Control . He appeared on the album along with Scott Brown DJ Scott Brown , Bang , Darren Styles Styles , Mark Breeze Breeze , Hixxy and DJ Sharkey Sharkey . small References 1 small References 1. http www.discogs.com artist Helix Discogs DEFAULTSORT Dj Helix Category Happy hardcore musicians ... more details
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