chembox Verifiedfields changed verifiedrevid 455378501 ImageFileL1 L leucine skeletal.png ImageSizeL1 120px ImageFileR1 L leucine 3D balls.png ImageSizeR1 140px IUPACName Leucine OtherNames 2 Amino 4 methylpentanoic ... FlashPt Autoignition Leucine abbreviated as Leu or L ref cite web author IUPAC IUBMB Joint Commission ... sub 2 sub . Leucine is classified as a hydrophobic amino acid due to its aliphatic isobutyl side chain ... of the subunits in ferritin , astacin and other buffer protein s. Leucine is an essential amino acid . Biosynthesis As an essential amino acid, leucine is unable to be synthesised by animals. Consequently, it must be ingested, usually as a component of proteins. In plants and microorganisms, leucine ... Isopropylmalate isomerase Leucine aminotransferase While this part is probably true, it s just ... step undergoes reductive amination . Enzymes involved in a typical leucine biosynthesis include .... Biology Leucine is utilized in the liver , adipose tissue , and muscle tissue . In adipose and muscle tissue, leucine is used in the formation of sterol s, and the combined usage of leucine in these two ... al. Department of Medicine, University of Toronto, Toronto, Canada title Metabolic fate of leucine ... 25 ref Leucine is the only dietary amino acid that has the capacity to stimulate muscle protein synthesis ... 134 4 996S.long pmid 15051860 ref As a dietary supplement, leucine has been found to slow the degradation ... author L. Combaret, et al. Human Nutrition Research Centre of Clermont Ferrand title A leucine supplemented ... branch chained amino acids in sports supplements, leucine has since earned more attention on its ... 2 1 1 ratio of leucine, iso leucine and valine but with furthered evidence that leucine is the most ... in dietary supplements. ref cite web title Leucine Awesome, Scientists Say url http sportssupplementreviewer.com 2011 06 leucine awesome scientists say accessdate 2011 06 14 unused data Sports Supplement Reviewer ref Leucine potently activates the mammalian target of rapamycin kinase that regulates ... more details
parallel alpha helices . ref name pmid3289117 A single leucine zipper consists of multiple leucine ... the motifs to zip together. Furthermore, the hydrophobic leucine region is absolutely required for DNA binding. Structure Image Leucine zipper.png thumb Leucine Zipper blue bound to DNA. The leucine residues that represent the teeth of the zipper are colored red The main feature of the leucine zipper domain is the predominance of the common amino acid leucine at the d position of the heptad repeat . Leucine zippers were first identified by sequence alignment of certain transcription factor ... shown to form the hydrophobic core of a coiled coil . Each half of a leucine zipper consists of a short alpha helix with a leucine residue at every seventh position. The standard 3.6 residues per turn ... repeat , one leucine comes in direct contact with another leucine on the other strand every ... leucine zipper region that is responsible for dimerization. Biology Leucine zipper regulatory ... Biology title Leucine scissors edition Revised year 1997 publisher Portland Press volume ... SL date 1988 06 24 title The leucine zipper a hypothetical structure common to a new class of DNA ... ref External links MeshName Leucine zippers Transcription factors g1 Category Protein structural ... more details
enzyme Name leucine 2,3 aminomutase EC number 5.4.3.7 CAS number 59125 53 0 IUBMB EC number 5 4 3 7 GO code 0050047 image width caption In enzymology , a leucine 2,3 aminomutase EC number 5.4.3.7 is an enzyme that catalysis catalyzes the chemical reaction 2S alpha leucine math rightleftharpoons math 3R beta leucine Hence, this enzyme has one substrate biochemistry substrate , 2S alpha leucine , and one product chemistry product , 3R beta leucine . This enzyme belongs to the family of isomerase s, specifically those intramolecular transferase s transferring amino groups. The systematic name of this enzyme class is 2S alpha leucine 2,3 aminomutase . This enzyme participates in valine, leucine and isoleucine degradation . It employs one cofactor biochemistry cofactor , cobamide . References reflist 1 cite journal author Freer I, Pedrocchi Fantoni G, Picken DJ and Overton KH date 1981 title Stereochemistry of the leucine 2,3 aminomutase from tissue cultures of Andrographis paniculata journal J. Chem. Soc. Chem. volume Commun. pages 80&ndash 82 cite journal author Poston JM date 1976 title Leucine 2,3 aminomutase, an enzyme of leucine catabolism journal J. Biol. Chem. volume 251 pages 1859&ndash 63 pmid 1270414 issue 7 cite journal author Poston JM date 1976 title Coenzyme B12 dependent enzymes in potatoes leucine 2,3 aminomutase and methylmalonyl CoA mutase journal Phytochemistry journal Phytochemistry volume 17 pages 401&ndash 402 doi 10.1016 S0031 9422 00 89324 3 issue 3 Category EC 5.4.3 Category Cobamide enzymes Category Enzymes of unknown structure isomerase stub ... more details
enzyme Name leucine transaminase EC number 2.6.1.6 CAS number 9030 37 9 IUBMB EC number 2 6 1 6 GO code 0050048 image width caption In enzymology , a leucine transaminase EC number 2.6.1.6 is an enzyme that catalysis catalyzes the chemical reaction L leucine 2 oxoglutarate math rightleftharpoons math 4 methyl 2 oxopentanoate L glutamate Thus, the two substrate biochemistry substrates of this enzyme are L leucine and 2 oxoglutarate , whereas its two product chemistry products are 4 methyl 2 oxopentanoate and L glutamate . This enzyme belongs to the family of transferase s, specifically the transaminases , which transfer nitrogenous groups. The systematic name of this enzyme class is L leucine 2 oxoglutarate aminotransferase . Other names in common use include L leucine aminotransferase , leucine 2 oxoglutarate transaminase , leucine aminotransferase , and leucine alpha ketoglutarate transaminase . This enzyme participates in 3 metabolism metabolic pathways valine, leucine and isoleucine degradation , valine, leucine and isoleucine biosynthesis , and pantothenate and coa biosynthesis . It employs one cofactor biochemistry cofactor , pyridoxal phosphate . References reflist 1 cite journal author Aki K, Ogawa K, Ichihara A date 1968 title Transaminases of branched chain amino acids. IV. Purification and properties of two enzymes from rat liver journal Biochim. Biophys. Acta. volume 159 pages 276&ndash 84 pmid 4968655 issue 2 cite journal author Ikeda T, Konishi Y, Ichihara A date 1976 title Transaminase of branched chain amino acids. XI. Leucine methionine transaminase of rat liver mitochondria journal Biochim. Biophys. Acta. volume 445 pages 622&ndash 31 pmid 974100 issue 3 transferase stub Category EC 2.6.1 Category Pyridoxal phosphate enzymes Category Enzymes of unknown structure ... more details
enzyme Name leucine dehydrogenase EC number 1.4.1.9 CAS number 9082 71 7 IUBMB EC number 1 4 1 9 GO code 0050049 image width caption In enzymology , a leucine dehydrogenase EC number 1.4.1.9 is an enzyme that catalysis catalyzes the chemical reaction L leucine H sub 2 sub O NAD sup sup math rightleftharpoons math 4 methyl 2 oxopentanoate NH sub 3 sub NADH H sup sup The 3 substrate biochemistry substrates of this enzyme are L leucine , water H sub 2 sub O , and nicotinamide adenine dinucleotide NAD sup sup , whereas its 4 product chemistry products are 4 methyl 2 oxopentanoate , ammonia NH sub 3 sub , nicotinamide adenine dinucleotide NADH , and hydrogen ion H sup sup . This enzyme belongs to the family of oxidoreductase s, specifically those acting on the CH NH2 group of donors with NAD or NADP as acceptor. The systematic name of this enzyme class is L leucine NAD oxidoreductase deaminating . Other names in common use include L leucine dehydrogenase , L leucine NAD oxidoreductase, deaminating , and LeuDH . This enzyme participates in valine, leucine and isoleucine degradation and valine, leucine and isoleucine biosynthesis . Structural studies As of late 2007, only one tertiary structure structure has been solved for this class of enzymes, with the Protein Data Bank PDB accession code PDB link 1LEH . References reflist 1 cite journal author Sanwal BD and Zink MW date 1961 title L Leucine dehydrogenase of Bacillus cereus journal Arch. Biochem. Biophys. volume 94 pages 430&ndash 435 doi 10.1016 0003 9861 61 90070 4 cite journal author Zink MW and Sanwal BD date 1962 title The distribution and substrate specificity of L leucine dehydrogenase journal Arch. Biochem. Biophys. volume 99 pages 72&ndash 77 doi 10.1016 0003 9861 62 90245 X 1.4 enzyme stub Category EC 1.4.1 Category NADH dependent enzymes Category Enzymes of known structure es Leucina deshidrogenasa it Leucina deidrogenasi ja ... more details
enzyme Name leucine N acetyltransferase EC number 2.3.1.66 CAS number 75496 56 9 IUBMB EC number 2 3 1 66 GO code 0050050 image width caption In enzymology , a leucine N acetyltransferase EC number 2.3.1.66 is an enzyme that catalysis catalyzes the chemical reaction acetyl CoA L leucine math rightleftharpoons math CoA N acetyl L leucine Thus, the two substrate biochemistry substrates of this enzyme are acetyl CoA and L leucine , whereas its two product chemistry products are coenzyme A CoA and N acetyl L leucine . This enzyme belongs to the family of transferase s, specifically those acyltransferase s transferring groups other than aminoacyl groups. The systematic name of this enzyme class is acetyl CoA L leucine N acetyltransferase . This enzyme is also called leucine acetyltransferase . References reflist 1 cite journal author Suzukake S, Hayashi H, Hori M and Umezawa H date 1982 title Biosnthesis of leupeptin III. Isolation and properties of an enzyme synthesizing acetyl L leucine journal J. Antibiot. volume 33 pages 857&ndash 862 pmid 7429989 issue 8 transferase stub Category EC 2.3.1 Category Enzymes of unknown structure it Leucina N acetiltransferasi ... more details
Infobox rfam Name Leucine operon leader image RF00512.jpg width caption Predicted secondary structure and sequence conservation of Leu leader Symbol Leu leader AltSymbols Rfam RF00512 miRBase miRBase family RNA type Cis regulatory element Cis reg leader Tax domain Bacteria GO SO SO 0000233 CAS number EntrezGene HGNCid OMIM PDB RefSeq Chromosome Arm Band LocusSupplementaryData The Leucine operon leader is an cis regulatory element RNA element found upstream of the first gene in the Leucine biosynthetic operon . ref name pmid6186194 cite journal author Kolter R, Yanofsky C title Attenuation in amino acid biosynthetic operons journal Annu. Rev. Genet. volume 16 issue pages 113 34 year 1982 pmid 6186194 doi 10.1146 annurev.ge.16.120182.000553 ref The leader sequence can assume two different secondary structures known as the terminator and the anti terminator structure. The leader also codes for very short peptide sequence that is rich in leucine amino acid. The terminator structure is recognised as a termination signal for RNA polymerase and the operon is not transcribed. This structure forms when the cell has an excess of leucine and ribosome movement over the leader transcript is not impeded. ref name pmid6186194 When there is a deficiency of the charged leucyl tRNA the ribosome translation translating the leader peptide stalls and the antiterminator structure can form. This allows RNA polymerase to transcribe the operon. ref name pmid6186194 At least 6 amino acid operons are known to be regulated by attenuation. ref name pmid6186194 References reflist 1 External links Rfam id RF00512 name Leucine operon leader Category Cis regulatory RNA elements molecular cell biology stub ... more details
refimprove date February 2008 Leucine responsive protein , or Lrp , ref name pmid17223133 cite journal author de los Rios S, Perona JJ title Structure of the Escherichia coli leucine responsive regulatory protein Lrp reveals a novel octameric assembly journal J. Mol. Biol. volume 366 issue 5 pages 1589 602 year 2007 month March pmid 17223133 pmc 1933502 doi 10.1016 j.jmb.2006.12.032 url http linkinghub.elsevier.com retrieve pii S0022 2836 06 01707 4 ref is a global regulator protein , meaning that it regulates the biosynthesis of leucine , as well as the other branched chain amino acids , valine and isoleucine . In bacteria , it is encoded by the lrp gene . Lrp alternatively activates and represses the expression of acetolactate synthase s ALS several isoenzymes . Lrp, in E. coli, along with Dam methylase DAM plays a role in the regulation of the pap operon , pylonephritis associated pili . I m too lazy busy to look up refs for this, but you can find most of them from the article Metabolic engineering of E coli for the production of valine based on transcriptome analysis and in silico gene knockout simulation by Park et al., 2007 References reflist External links MeshName Leucine Responsive Regulatory Protein Category Proteins biochemistry stub ... more details
enzyme Name leucine tRNA ligase EC number 6.1.1.4 CAS number 9031 15 6 IUBMB EC number 6 1 1 4 GO code 0004823 image width caption In enzymology , a leucine tRNA ligase EC number 6.1.1.4 is an enzyme that catalysis catalyzes the chemical reaction ATP L leucine tRNALeu math rightleftharpoons math AMP diphosphate L leucyl tRNALeu The 3 substrate biochemistry substrates of this enzyme are adenosine triphosphate ATP , L leucine , and tRNA Leu , whereas its 3 product chemistry products are adenosine monophosphate AMP , diphosphate , and L leucyl tRNA Leu . This enzyme belongs to the family of ligase s, to be specific those forming carbon oxygen bonds in aminoacyl tRNA and related compounds. The systematic name of this enzyme class is L leucine tRNALeu ligase AMP forming . Other names in common use include leucyl tRNA synthetase , leucyl transfer ribonucleate synthetase , leucyl transfer RNA synthetase , leucyl transfer ribonucleic acid synthetase , leucine tRNA synthetase , and leucine translase . This enzyme participates in valine, leucine and isoleucine biosynthesis and aminoacyl trna biosynthesis . Structural studies As of late 2007, 5 tertiary structure structures have been solved for this class of enzymes, with Protein Data Bank PDB accession codes PDB link 1WKB , PDB link 1WZ2 , PDB link 2AJG , PDB link 2AJH , and PDB link 2AJI . See also Leucyl tRNA synthetase References reflist 1 cite journal author ALLEN EH, GLASSMAN E, SCHWEET RS date 1960 title Incorporation of amino acids into ribonucleic acid. I. The role of activating enzymes journal J. Biol. Chem. volume 235 pages 1061&ndash 7 pmid 13792726 cite journal author Berg P, Bergmann FH, Ofengand EJ and Dieckmann M date 1961 title The enzymic synthesis of amino acyl derivatives of ribonucleic acid I. The mechanism of leucyl , valyl , isoleucyl and methionyl ribonucleic acid formation journal J. Biol. Chem. volume 236 pages 1726&ndash 1734 cite journal author Bergmann FH, Berg P and Dieckmann M date 1961 title The enzymic ... more details
Pfam box Symbol LRR 1 Name image 2bnh topview.png width caption An example of a leucine rich repeat protein ... PDB3 1a9n A 89 109 Infobox protein family Symbol LRV Name Leucine rich repeat variant image PDB 1lrv EBI.jpg width caption a leucine rich repeat variant with a novel repetitive protein structural motif ... family Symbol LRRNT Name Leucine rich repeat N terminal domain image PDB 1xec EBI.jpg width caption ... LRRNT 2 Name Leucine rich repeat N terminal domain image PDB 1ogq EBI.jpg width caption the crystal structure of pgip polygalacturonase inhibiting protein , a leucine rich repeat protein involved in plant ... OPM family OPM protein CAZy CDD Infobox protein family Symbol LRRCT Name Leucine rich repeat C terminal ... a leucine rich repeat variant with a novel repetitive protein structural motif Pfam PF05484 Pfam ... A leucine rich repeat LRR is a protein structural motif that forms an horseshoe tertiary structure fold . ref name pmid7817399 cite journal author Kobe B, Deisenhofer J title The leucine rich repeat ... of leucine rich repeat LRR proteins journal Proteins volume 54 issue 3 pages 394 403 year 2004 month ... acid stretches that are unusually rich in the hydrophobic amino acid leucine . Typically, each repeat ... the helices and sheets is the protein s hydrophobic core and is tightly steric ally packed with leucine residues. Leucine rich repeats are frequently involved in the formation of protein protein interactions. ref name pmid11751054 cite journal author Kobe B, Kajava AV title The leucine rich repeat ... LC, Weldon MA, Barna JC title A leucine rich repeat peptide derived from the Drosophila Toll ... retrieve pii 0014 5793 91 81110 T issn ref Examples Leucine rich repeat motifs have been ... sometimes have long loops rather than helices linking successive beta strands. One leucine rich repeat ... in other leucine rich repeats. ref name pmid8946850 cite journal author Peters JW, Stowell MH, Rees DC title A leucine rich repeat variant with a novel repetitive protein structural motif journal ... more details
OrganicBox complete wiki name Leucine name S 2 amino 4 methyl pentanoic acid GENERAL INFORMATION C 6 H 13 N 1 O 2 mass 131.18 abbreviation L, Leu image Image L leucine skeletal.png 130px Chemical structure of Leucine Image L leucine 3D sticks.png 230px Chemical structure of Leucine synonyms S L 2 amino 4 methylvaleric acid br 4 methyl norvaline br aminoisocaproic acid DATABASES SMILES CC C C C H C O O N ref 1 a InChI 1 C6H13NO2 c1 4 2 3 5 7 6 8 9 h4 5H,3,7H2,1 2H3, H,8,9 t5 m0 s1 f h8H ref 1 b ATC prefix ATC suffix ATC supplemental CAS 61 90 5 DrugBank EINECS 200 522 0 PubChem 6106 PHYSICAL PROPERTIES Structure index of refraction abbe number dielectric constant magnetic susceptibility dipole moment U V data lambda max extinction coefficient Infrared data absorption bands NMR data proton NMR carbon NMR other NMR Spectrometry data mass spectrometry Phase behaviour delta f H o delta fus H o delta fus S o triple point K triple point C triple point Pa criticle point K criticle point C criticle point Pa Solid properties S o solid heat capacity solid density solid 1.165 melting point C 293 melting point F melting point K Liquid properties delta vap H o delta vap S o S o liquid heat capacity liquid density liquid viscosity liquid boiling point C boiling point F boiling point K Gas properties S o gas heat capacity gas viscosity gas HAZARD PROPERTIES MSDS main hazards nfpa health nfpa flammability nfpa reactivity nfpa special flash point r phrases s phrases RTECS number CHEMICAL PROPERTIES XLogP 1.743 ref 1 c isoelectric point 5.98 ref 1 d disociation constant 2.32 9.58 ref 1 e tautomers H bond donor 2 H bond acceptor 3 PHARMACOLOGICAL PROPERTIES bioavailability metabolism elimination half life excretion pregnancy category legal status routes of administration References refbegin note 1 a note 1 b note 1 c note 1 d note 1 e PubChem 6106 refend AminoAcids Category Branched chain amino acids Category Essential amino acids Category Chemical data pages ar ... more details
Basic helix loop helix leucine zipper transcription factors are, as their name indicates, transcription factors containing both Basic helix loop helix and leucine zipper motifs. An example is Microphthalmia associated transcription factor . Another example is the Sterol regulatory element binding protein SREBP . External links MeshName Basic helix loop helix leucine zipper transcription factors Transcription factors g1 Category Gene expression Category Transcription factors genetics stub ... more details
PBB geneid 8125 Acidic leucine rich nuclear phosphoprotein 32 family member A is a protein that in humans is encoded by the ANP32A gene . ref name pmid8970164 cite journal author Chen TH, Brody JR, Romantsev FE, Yu JG, Kayler AE, Voneiff E, Kuhajda FP, Pasternack GR title Structure of pp32, an acidic nuclear protein which inhibits oncogene induced formation of transformed foci journal Mol Biol Cell volume 7 issue 12 pages 2045 56 year 1997 month Mar pmid 8970164 pmc 276049 doi ref ref name pmid9144194 cite journal author Ulitzur N, Humbert M, Pfeffer SR title Mapmodulin a possible modulator of the interaction of microtubule associated proteins with microtubules journal Proc Natl Acad Sci U S A volume 94 issue 10 pages 5084 9 year 1997 month Jun pmid 9144194 pmc 24635 doi 10.1073 pnas.94.10.5084 ref ref cite web title Entrez Gene ANP32A Acidic leucine rich nuclear phosphoprotein 32 family, member A url http www.ncbi.nlm.nih.gov sites entrez?Db gene&Cmd ShowDetailView&TermToSearch 8125 accessdate ref It is one of the targets of an oncomiR, MIRN21 . The PBB Summary template is automatically maintained by Protein Box Bot. See Template PBB Controls to Stop updates. PBB Summary section title summary text Interactions Acidic leucine rich nuclear phosphoprotein 32 family member A has been shown to Protein protein interaction interact with MAP1B , ref name pmid12807913 cite journal last Opal first Puneet authorlink coauthors Garcia Jesus J, Propst Friedrich, Matilla Antoni, Orr Harry T, Zoghbi Huda Y year 2003 month Sep. title Mapmodulin leucine rich acidic nuclear protein binds the light chain of microtubule associated protein 1B and modulates neuritogenesis journal J. Biol. Chem. volume 278 issue 36 pages 34691 9 publisher location United States issn 0021 9258 pmid 12807913 doi ... journal author Matilla A, Radrizzani M title The Anp32 family of proteins containing leucine rich ... al. title The cerebellar leucine rich acidic nuclear protein interacts with ataxin 1 journal Nature ... more details
SLRP may be an abbreviation for Soluble low density lipoprotein receptor related protein Small leucine rich repeat protein Small leucine rich repeat proteoglycan disambig ... more details
UUG , according to the genetic code , is Leucine . UUG is an acronym for Uniface Users Group Universal Underwriters Group Unix User Group disambig de UUG fr UUG ... more details
enzyme Name N alpha benzyloxycarbonylleucine hydrolase EC number 3.5.1.64 CAS number 100630 47 5 IUBMB EC number 3 5 1 64 GO code 0047413 image width caption In enzymology , a Nalpha benzyloxycarbonylleucine hydrolase EC number 3.5.1.64 is an enzyme that catalysis catalyzes the chemical reaction Nalpha benzyloxycarbonyl L leucine H sub 2 sub O math rightleftharpoons math benzyl alcohol CO sub 2 sub L leucine Thus, the two substrate biochemistry substrates of this enzyme are Nalpha benzyloxycarbonyl L leucine and water H sub 2 sub O , whereas its 3 product chemistry products are benzyl alcohol , carbon dioxide CO sub 2 sub , and L leucine . This enzyme belongs to the family of hydrolase s, those acting on carbon nitrogen bonds other than peptide bonds, specifically in linear amides. The systematic name of this enzyme class is Nalpha benzyloxycarbonyl L leucine urethanehydrolase . Other names in common use include benzyloxycarbonylleucine hydrolase , Nalpha benzyloxycarbonyl amino acid urethane hydrolase IV , and alpha N benzyloxycarbonyl L leucine urethanehydrolase . References reflist 1 cite journal author Matsumura E, Shin T, Murao S, Sakaguchi M and Kawano T date 1985 title A novel enzyme, Nalpha benzyloxycarbonyl amino acid urethane hydrolase IV journal Agric. Biol. Chem. volume 49 pages 3643&ndash 3645 hydrolase stub Category EC 3.5.1 Category Enzymes of unknown structure ... more details
E641 or E 641 may be the E number of the flavour enhancer L leucine European route E641 , a European route class B road connecting the Austrian cities of W rgland and Salzburg via Sankt Johann in Tirol and Bad Reichenhall in Germany Letter NumberCombDisambig ... more details
The leucines are primarily the four isomer ic amino acid s leucine , isoleucine , tert Leucine tert leucine and norleucine . Being compared with the four butanol s, they could be classified as butyl substituted glycine s they represent all four possible variations. Leucine and isoleucine belong to the proteinogenic amino acid s the others are non natural. Including the stereoisomers, six further isomers could be added small D small leucine, small D small isoleucine, small L small allo isoleucine, small D small allo isoleucine, small D small tert leucine and small D small norleucine., Cycloleucine could be classified as a cyclic derivate of norleucine . With a cyclopentane ring, it has two hydrogen atoms less and thus is not an isomer. The carbon atom is not a stereocenter. center class wikitable centered style text align center font size 90 class hintergrundfarbe6 align center colspan 6 Leucines class hintergrundfarbe5 align left Name small L small Leucine small L small Isoleucine small L small tert Leucine tert Leucine Terleucine small L small Norleucine Cycloleucine class hintergrundfarbe5 align left Other names 2 Amino 4 methylpentanoic acid, br Isobutylglycine 2 Amino 3 methylpentanoic acid, br sec Butylglycine 2 Amino 3,3 dimethylbutanoic acid, br tert Butylglycine 2 Amino hexanoic acid, br n Butylglycine 1 Amino cyclopentane 1 carboxylic acid br class hintergrundfarbe5 align left Structure Image L Leucin L Leucine.svg 150px Image L Isoleucin L Isoleucine.svg 150px Image L tert Leucine.svg 110px Image L Norleucin.svg 175px Image Cycloleucin.svg 105px class hintergrundfarbe5 align left CAS number 61 90 5 73 32 5 20859 02 3 327 57 1 52 52 8 class hintergrundfarbe5 align left PubChem PubChem 6106 PubChem 791 PubChem 164608 PubChem 21236 PubChem 2901 class hintergrundfarbe5 align left Molecular formula colspan 4 C sub 6 sub H sub 13 sub NO sub 2 sub C sub 6 sub ... mol 129.16 g mol center Category Amino acids de Leucine ... more details
LRR may refer to Laminated root rot , a root disease in conifers Leucine rich repeat , a type of protein domain LoadingReadyRun , a Canadian comedy troupe Low rolling resistance tires , a type of tires designed for fuel efficiency See also LR disambiguation Lrrr disambiguation dab ... more details
DISPLAYTITLE C sub 6 sub H sub 13 sub NO sub 2 sub The molecular formula C sub 6 sub H sub 13 sub NO sub 2 sub may refer to Aminocaproic acid Isoleucine Leucine Norleucine MolFormDisambig el C6H13NO2 fr C6H13NO2 it C6H13NO2 lv C6h13no2 sr C6H13NO2 ... more details
Unreferenced date December 2009 The heptad repeat is an example of a structural motif that consists of a repeating pattern of seven amino acid s a b c d e f g H P P H C P C where H represents hydrophobic residues, C represents, typically, charged residues, and P represents Chemical polarity polar and, therefore, hydrophilic residues. The positions of the heptad repeat are commonly denoted by the lowercase letters a through g . These motifs are the basis for most coiled coil s and, in particular, leucine zipper s, which have predominantly leucine in the d position of the heptad repeat. DEFAULTSORT Heptad Repeat Category Protein structural motifs ... more details
PBB geneid 54674 Leucine rich repeat neuronal protein 3 , also known as neuronal leucine rich repeat protein 3 NLRR 3 , is a protein that in humans is encoded by the LRRN3 gene . ref name entrez cite web title Entrez Gene leucine rich repeat neuronal 3 url http www.ncbi.nlm.nih.gov sites entrez?Db gene&Cmd ShowDetailView&TermToSearch 54674 accessdate ref ref name pmid11549284 cite journal author Fukamachi K, Matsuoka Y, Kitanaka C, Kuchino Y, Tsuda H title Rat neuronal leucine rich repeat protein 3 cloning and regulation of the gene expression journal Biochem. Biophys. Res. Commun. volume 287 issue ... Leucine Rich Repeat Neuronal 3 url http www.genecards.org cgi bin carddisp.pl?id 17200&id type hgnc&search ... the same leucine rich repeats that are characteristic to this family of genes. ref name entrez Protein ..., and its signal sequence is removed. ref name GeneCards The LRRN3 protein contains 12 leucine rich repeats, along with an LRRNT and an LRR RI domain. Leucine rich repeat s are unusually rich in the hydrophobic amino acid leucine . They are common in protein protein interaction motifs and are typically ... region toward the end of the protein. ref name EMBL cite web title EMBL EBI Leucine rich Repeat ... shown this very high conservation of the LRRN3 gene among many different species. All 12 of the leucine ... for the rest of the homologous sequences. The high conservation of the leucine rich repeats, the Ig ... web title UniGene Leucine Rich Repeat Neuronal 3 url http www.ncbi.nlm.nih.gov UniGene clust.cgi?UGID ..., and oculomotor behavior. ref name ABA cite web title Allen Brain Atlas Leucine Rich Repeat Protein ... of leucine rich repeat proteins is an arc or horseshoe shape. This horseshoe shape of the protein ... shows that the LRRN3 protein takes on the characteristic horseshoe shape of most leucine rich repeat proteins. The LINGO1 ectodomain also has a very long stretch of leucine rich repeats which is the region ... in leucine rich repeat genes are associated with autism spectrum disorder susceptibility in populations ... more details
Photo reactive amino acid analogs are artificial analogs of natural amino acids that can be used for crosslinking of protein complexes. ref cite journal author Suchanek, M., Radzikowska, A., and Thiele, C. date 2005 title Photo leucine and photo methionine allow identification of protein protein interactions in living cells journal Nature Methods volume 2 pmid 15782218 pages 261 268 doi 10.1038 nmeth752 issue 4 ref Photo reactive amino acid analogs may be incorporated into proteins and peptides in vivo or in vitro . Photo reactive amino acid analogs in common use are Photochemistry photoreactive diazirine analogs to leucine and methionine , and p benzoylphenylalanine. Upon exposure to ultraviolet light , they are activated and covalently bind to interacting proteins that are within a few angstrom s of the photo reactive amino acid analog. L Photo Leucine and L Photo Methionine are analogs of the naturally occurring L Leucine and L Methionine amino acids that are endogenously incorporated into the primary sequence of proteins during synthesis using the normal translation machinery. They are then ultraviolet light UV activated to covalently crosslink proteins within protein protein interaction domains in their native in vivo environment. The method enables the determination and characterization of both stable and transient protein interactions in cells without the addition of chemical crosslinkers and associated solvents that can adversely affect the cell biology being studied in the experiment. When used in combination with limiting media that is devoid of leucine and methionine, the photo activatable derivatives are treated like naturally occurring amino acids by the cellular protein synthesis machinery. As a result, they can be substituted for leucine or methionine in the primary structure of proteins. Photo leucine and photo methionine derivatives contain diazirine rings that are activated when exposed to UV light to become reactive intermediates that form covalen ... more details
enzyme Name 3 isopropylmalate dehydratase EC number 4.2.1.33 CAS number 37290 72 5 IUBMB EC number 4 2 1 33 GO code 0003861 image width caption 3 Isopropylmalate dehydratase is an aconitase homologue. ref name pmid14087357 cite journal author Gross SR, Burns RO, Umbarger HE title The biosynthesis of leucine. II. The enzymic isomerization of beta carboxy beta hydroxyisocaproate and alpha hydroxy beta carboxyisocaproate journal Biochemistry volume 2 issue 5 pages 1046 52 year 1963 pmid 14087357 doi 10.1021 bi00905a023 url ref Ref Name pmid14269331 Cite journal author Calvo JM, Stevens CM, Kalyanpur MG, Umbarger HE title The absolute configuration of alpha hydroxy beta carboxyisocaproic acid 3 isopropylmalic acid , an intermediate in leucine biosynthesis journal Biochemistry volume 3 issue 12 pages 2024 7 year 1964 month December pmid 14269331 doi 10.1021 bi00900a043 url ref ref name pmid4270046 cite journal author Cole FE, Kalyanpur MG, Stevens CM title Absolute configuration of alpha isopropylmalate and the mechanism of its conversion to beta isopropylmalate in the biosynthesis of leucine journal Biochemistry volume 12 issue 17 pages 3346 50 year 1973 month August pmid 4270046 doi 10.1021 bi00741a031 url ref References Reflist External links MeshName 3 isopropylmalate dehydratase Carbon oxygen lyases Category Lyases Category Article Feedback 5 enzyme stub fr 3 isopropylmalate d shydratase ... more details
enzyme Name 2 aminohexanoate transaminase EC number 2.6.1.67 CAS number 111310 35 1 IUBMB EC number 2 6 1 67 GO code 0047537 image width caption In enzymology , a 2 aminohexanoate transaminase EC number 2.6.1.67 is an enzyme that catalysis catalyzes the chemical reaction L 2 aminohexanoate 2 oxoglutarate math rightleftharpoons math 2 oxohexanoate L glutamate Thus, the two substrate biochemistry substrates of this enzyme are L 2 aminohexanoate and 2 oxoglutarate , whereas its two product chemistry products are 2 oxohexanoate and L glutamate . This enzyme belongs to the family of transferase s, specifically the transaminases , which transfer nitrogenous groups. The systematic name of this enzyme class is L 2 aminohexanoate 2 oxoglutarate aminotransferase . Other names in common use include norleucine transaminase , norleucine leucine aminotransferase , and leucine L norleucine 2 oxoglutarate aminotransferase . It employs one cofactor biochemistry cofactor , pyridoxal phosphate . References reflist 1 cite journal author Der Garabedian PA, Vermeersch JJ date 1987 title Candida L norleucine,leucine 2 oxoglutarate aminotransferase Purification and properties journal Eur. J. Biochem. volume 167 pages 141&ndash 7 pmid 3622507 doi 10.1111 j.1432 1033.1987.tb13315.x issue 1 transferase stub Category EC 2.6.1 Category Pyridoxal phosphate enzymes Category Enzymes of unknown structure ... more details
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