The Strecker aminoacid synthesis , devised by Adolph Strecker , is a series of chemical reaction s that synthesize an aminoacid from an aldehyde or ketone . ref cite journal author Adolph Strecker Strecker, A. title Ueber die k nstliche Bildung der Milchs ure und einen neuen, dem Glycocoll homologen K rper journal Liebigs Annalen Annalen der Chemie und Pharmazie year 1850 volume 75 issue 1 doi 10.1002 jlac.18500750103 pages 27 45 ref ref cite journal author Strecker, A. title Ueber einen neuen aus Aldehyd Ammoniak und Blaus ure entstehenden K rper p journal Liebigs Annalen Annalen der Chemie und Pharmazie year 1854 volume 91 issue 3 doi 10.1002 jlac.18540910309 pages 349 351 ref ref Shibasaki, M. Kanai, M. Mita, K. Org. React. 2008 , 70 , 1. doi 10.1002 0471264180.or070.01 ref The aldehyde is condensation condensed with ammonium chloride in the presence of potassium cyanide to form an aminonitrile, which is subsequently hydrolyzed to give the desired aminoacid. ref Kendall, E. C. McKenzie ... alanine . Image Strecker AminoAcid Synthesis Scheme.png 400px center The Strecker aminoacid synthesis While usage of ammonium salts gives unsubstituted amino acids, primary and secondary amines also successfully give substituted amino acids. Likewise, the usage of ketone s, instead of aldehydes, gives , disubstituted amino acids. ref Masumoto, S. Usuda, H. Suzuki, M. Kanai, M. Shibasaki ... is cleaved due the protonation of the amino group and finally the deprotonation of one of the two hydroxyl groups produces a carboxylic group and an aminoacid 2.4 is formed. align center class wikitable ... of the Strecker AminoAcid Synthesis by a Cyclic Dipeptide Mani S. Iyer,, Kenneth M. Gigstad ... resolved by application of L tartaric acid . The aminoacid is isolated as its salt with dicyclohexylamine ... of Adolph Strecker from 1850 gives racemic amino nitriles, but recently several procedures utilizing ... Synthesis of Amino acids by the Strecker Synthesis Kaoru Harada Nature 200, 1201 21 December ... more details
pathway of aspartate family Aminoacid Chemical properties aminoacid s has been studied ... into either the storage aminoacid asparagine or aspartate family amino acids may be subject ... more details
amino acids are either not incorporated in proteins like Gamma aminobutyric acid GABA , L DOPA ... of aminoacidamino acids that can be recognized by ribozyme auto aminoacylation systems. ref cite journal author Erives A title A Model of Proto Anti Codon RNA Enzymes Requiring L AminoAcid ... identity of an aminoacid cannot be determined unambiguously. Certain protein sequencing techniques ... X is used to indicate an aminoacid that is completely unidentified. Chemical properties Following ... in elimination of a molecule of water molecule water , so the mass of an aminoacid unit within a protein ... align center AminoAcid Short Abbrev. Avg. Mass Atomic mass unit Da Isoelectric point pI dissociation ... AminoAcid Short Abbrev. Side chain Hydrophobic Hydro br phobic Acid dissociation constant pKa ... when the aminoacid is inside a protein. Protein pKa calculations are sometimes used to calculate the change in the pKa value of an aminoacid in this situation. Gene expression and biochemistry class wikitable sortable align center AminoAcid Short Abbrev. Codon s Occurrence br in human proteins ... is not an aminoacid, but is included for completeness. br span id stopcodonnote span UAG and UGA do not always act as stop codons see above . br span id essentialnote span An essential aminoacid ... education.expasy.org student projects isotopident htdocs aa list.html title The aminoacid masses accessdate 2009 01 06 publisher ExPASy ref class wikitable sortable style text align center AminoAcid ... . class wikitable sortable style text align center Aminoacid Abundance br of molecules 10 sup ... 2 Valine 2.4 2 2 Remarks class wikitable align center AminoAcid colspan 2 Abbrev. Remarks Alanine A Ala ... B Asx A placeholder when either aminoacid may occupy a position. Cysteine C Cys The sulfur atom bonds ... in a disulfide bond to form the aminoacid cystine . When cystines are part of a protein, insulin ... more flexible side chain. Phenylalanine F Phe essential aminoacid Essential for humans. Phenylalanine ... more details
Pfam box Symbol AA permease Name Aminoacid permease image width caption Pfam PF00324 Pfam clan CL0062 InterPro IPR004841 SMART Prosite PDOC00191 SCOP TCDB 2.A.3 OPM family 67 OPM protein 3gia PDB 3hfx Aminoacid permeases are membrane permease s involved in the transport of aminoacid s into the cell. A number of such proteins have been found to be evolutionary related ref name PUB00003402 cite journal author Weber E, Jund R, Chevallier MR title Evolutionary relationship and secondary structure predictions in four transport proteins of Saccharomyces cerevisiae journal J. Mol. Evol. volume 27 issue 4 pages 341 350 year 1988 pmid 3146645 doi 10.1007 BF02101197 ref ref name PUB00001779 cite journal author Vandenbol M, Grenson M, Jauniaux JC title Nucleotide sequence of the Saccharomyces cerevisiae PUT4 proline permease encoding gene similarities between CAN1, HIP1 and PUT4 permeases journal Gene volume 83 issue 1 pages 153 159 year 1989 pmid 2687114 doi 10.1016 0378 1119 89 90413 7 ref ref name PUB00005006 cite journal author Reizer J, Reizer A, Finley K, Kakuda D, Saier Jr MH, MacLeod CL title Mammalian integral membrane receptors are homologous to facilitators and antiporters of yeast, fungi, and eubacteria journal Protein Sci. volume 2 issue 1 pages 20 30 year 1993 pmid 8382989 doi 10.1002 pro.5560020103 pmc 2142299 ref . These proteins contain 12 transmembrane segments. See also Aminoacid transporter Human proteins containing this domain CIP1 SLC12A1 SLC12A2 SLC12A3 SLC12A4 SLC12A5 SLC12A6 SLC12A7 SLC12A8 SLC12A9 SLC7A1 SLC7A10 SLC7A11 SLC7A13 SLC7A14 SLC7A2 SLC7A3 SLC7A4 SLC7A5 SLC7A6 SLC7A7 SLC7A8 SLC7A9 References reflist Category Protein domains Category Protein families Category Membrane proteins membrane protein stub InterPro content IPR004841 ... more details
Context date June 2010 POV date June 2010 Pseudo aminoacid composition , or PseAA composition , was originally ... author Chou KC title Prediction of protein cellular attributes using pseudo aminoacid composition journal ... for a protein sample is its entire aminoacid AA sequence, which can contain its most complete ... the aminoacid composition AAC to represent protein samples, as formulated as follows. Given a protein sequence P with math L math aminoacid residues, i.e., math mathbf P begin bmatrix mbox R ... acids in P , and T the transposing operator. Accordingly, the aminoacid composition of a protein can ... chou1 In contrast with the conventional aminoacid composition that contains 20 components with each ... Chen title Pseudo aminoacid composition and its applications in bioinformatics, proteomics and system ... q math th function of the aminoacid math mbox R i , math , and math Gamma , math the total number ... right math and math Phi 3 left mbox R i 1 right math the corresponding values for the aminoacid math ... name pmid15308540 cite journal author Chou KC title Using amphiphilic pseudo aminoacid composition ... G title A novel feature representation method based on Chou s pseudo aminoacid composition for protein ... aminoacid composition and support vector machine fusion network journal Anal. Biochem. volume ... aminoacid composition and support vector machine to predict protein structural class journal J. Theor ... ref ref name pmid17330882 cite journal author Lin H, Li QZ title Using pseudo aminoacid ... of protein structural classes by Chou s pseudo aminoacid composition approached using continuous ... Using the concept of Chou s pseudo aminoacid composition to predict enzyme family classes an approach ... s pseudo aminoacid composition and support vector machine journal J. Theor. Biol. volume 281 issue ... protein folding rates using the concept of Chou s pseudo aminoacid composition journal J Comput ... using Chou s pseudo aminoacid composition journal Protein Pept. Lett. volume 17 issue 10 pages ... more details
For the non biological synthesis of amino acids Strecker aminoacid synthesis Aminoacid synthesis is the set of biochemical processes metabolic pathways by which the various aminoacid s are produced ... , or the citric acid cycle . In aminoacid production, one encounters an important problem in biosynthesis ... in sufficient amounts for protein synthesis and other processes. Aminoacid synthesis ... acid cycle and other major pathways Of the basic set of 20 amino acids not counting selenocysteine ... P, Stehle P title What are the essential elements needed for the determination of aminoacid requirements ... amino acids. At this step, the chirality of the aminoacid is established. Alanine and aspartate are synthesized ... . Tyrosine is synthesized by the hydroxylation of phenylalanine , an essential aminoacid. The pathways ... Press, New York. On p273. ref Aminoacid biosynthesis is regulated by feedback inhibition Most of the pathways of aminoacid biosynthesis are regulated by feedback inhibition , in which the committed ... by a cascade of reversible covalent modifications. Additional regulation based on aminoacid families ketoglutarate Family File Regulation of the alpha ketogluatarate aminoacid family biosynthesis.pdf ... ketoglutarate family of aminoacid synthesis synthesis of glutamate, glutamine, proline and arginine ... . This is one of the initial regulations of the ketoglutarate family of aminoacid synthesis. B The regulation ... Cervera, Ignacio Fita, Vicente Rubio 2007 . A novel Two domain Architecture within the AminoAcid ... Rubio 2007 . A novel Two domain Architecture within the AminoAcid Kinase Enzyme Family Revealed by the Crystal ..., chorismate converted to prephenate which is converted to an aminoacid specific intermediate. This process ... dehydrogenase. The reason for the aminoacid specific enzymes is because PheA uses a simple dehydrogenase ... L aspartic acid as the precursor for the biosynthesis of one fourth of the building block amino acids ... coli Serine is the first aminoacid in this family to be produced it is then modified to produce ... more details
1955 title D Aminoacid transamination in bacillus anthracis journal J. Bacteriol. volume 70 pages ... K date 1973 title Occurrence of D aminoacid aminotransferase in pea seedlings journal Biochem ... X issue 3 cite journal author Yonaha K, Misono H, Yamamoto T, Soda K date 1975 title D aminoacid aminotransferase ... S, Tanaka H, Soda K date 1989 title Thermostable D aminoacid aminotransferase from a thermophilic ..., Bledig SA, Taylor PP date 1998 title Characterization of the genes encoding D aminoacid transaminase ... S, Petsko GA, Manning JM, Soda K, Ringe D date 1995 title Crystal structure of a D aminoacid aminotransferase ... RD date 1955 title Transamination of D amino acids by Bacillus subtilis journal J. Bacteriol. volume ... Yoshimura T, Soda K, Ringe D, Petsko G, Manning JM date 1998 title Substrate inhibition of D aminoacid transaminase and protection by salts and by reduced nicotinamide adenine dinucleotide isolation ... more details
for centuries. OR date December 2011 The source of these silk amino acids is typically the domesticated moth, silkworm Latin name Bombyx mori . Sericin has a high hydroxy aminoacid content which is important ... has a unique carbohydrate moiety and a unique repetitive aminoacid sequence which give it a high ... Categories Category Aminoacid derivatives ... Silk amino acids SAAs also known as Sericin is a natural water soluble glycoprotein extracted ... Research Vol. 63, April 2004, pp323 329 ref Silk amino acids are produced by hydrolyzing or breaking apart silk proteins into smaller peptide chains, typically 18 to 19 amino acids in length. Silk amino acids have a lower molecular weight than silk protein powders and are moisturizing to skin and hair. ref http www.lotioncrafter.com silk amino acids.html ref Although silk proteins have been ... and antiviral activities. citation needed date January 2012 Silk amino acids are used in formulating ... moisturizers, mascara, lipstick and color cosmetics. ref http www.dermaxime.com silk amino acids.htm Silk amino acids add a velvety touch to cosmetics and also helps to prevent dehydration of the skin ... Predominant composition of silk amino acids by weight ref Shin S, Park D, Yeon S et al. Stamina enhancing ... 27.23 L Serine 9.58 L Valine 3.49 L Threonine 2.00 SAAs contains other amino acids but only those ... contents of acid hydrolysates of cocoon in rats fed high cholesterol, high triglyceride and high sucrose ... Shin S, Yeon S, Park D et al. Silk amino acids improve physical stamina and male reproductive function ... doses of silk amino acids for 44 days, the mice experienced Improved exercise performance SAA ... in blood Lactic acid lactate levels which were significantly increased with just exercise ... muscle size 16 increase with high dose Other effects of silk amino acids SAAs or silk protein hydrolysates ... amino acids in rats. Lab Anim Res 2008 24 565 73. ref as well as having anti tumor, ref Zhaorigetu ... more details
Excitatory aminoacid transporters EAATs , also known as glutamate transporters , belong to the family of neurotransmitter transporter s. Glutamic acid Glutamate is the principal excitatory neurotransmitter in the vertebrate brain. EAATs serve to terminate the excitatory signal by removal uptake of glutamic acid glutamate from the neuronal synapse into neuroglia and neurons . The EAATs are membrane bound secondary transporters that superficially resemble ion channel s. ref name Ganel and Rothstein cite book author Ganel R, Rothstein JD editor Monyer, Hannah Gabriel A. Adelmann Jonas, Peter title Ionotropic glutamate receptors in the CNS publisher Springer location Berlin year 1999 pages 472 493 chapter Chapter 15, Glutamate transporter dysfunction and neuronal death isbn 3 540 66120 4 oclc doi ref These transporters play the important role of regulating concentrations of glutamate in the extracellular space by transporting it along with other ions across cellular membranes. ref name Zerangue and Kavanaugh cite journal author Zerangue, N, Kavanaugh, MP title Flux coupling in a neuronal glutamate transporter journal Nature volume 383 issue 6601 pages 634 37 year 1996 pmid 8857541 doi 10.1038 383634a0 ref After glutamate is released as the result of an action potential , glutamate transporters quickly remove it from the extracellular space to keep its levels low, thereby terminating the synaptic transmission. ref name Ganel and Rothstein ref name Shigeri cite journal author Shigeri Y, Seal RP, Shimamoto K title Molecular pharmacology of glutamate transporters, EAATs and VGLUTs journal Brain Res. Brain Res. Rev. volume 45 issue 3 pages 250 65 year 2004 pmid 15210307 doi 10.1016 ... journal author Pow DV, Barnett NL title Developmental expression of excitatory aminoacid transporter ... cells EAAT2 SLC1A2 glial and endothelial cells EAAT3 SLC1A1 neurons EAAT4 Excitatory aminoacid transporter 4 SLC1A6 neurons EAAT5 Excitatory aminoacid transporter 5 SLC1A7 retina VGLUT1 SLC17A7 neurons ... more details
Infobox Disease Name PAGENAME Image AminoAcidball.svg Caption The general structure of an aminoacid , with the amine amino group on the left and the carboxyl group on the right. DiseasesDB ICD10 ICD10 E 70 e 70 ICD10 E 72 e 70 ICD9 ICD9 270 ICDO OMIM MedlinePlus eMedicineSubj eMedicineTopic MeshID D000592 Inborn errors of aminoacid metabolism are metabolic disorders which impair the synthesis and degradation of aminoacid s. Types include Alkaptonuria Aspartylglucosaminuria Methylmalonic acidemia Maple syrup urine disease Homocystinuria Tyrosinemia Trimethylaminuria Hartnup disease Biotinidase deficiency Ornithine carbamoyltransferase deficiency Carbamoyl phosphate synthase I deficiency disease Citrullinemia Hyperargininemia Hyperhomocysteinemia Hyperlysinemias Nonketotic hyperglycinemia Propionic acidemia Hyperprolinemia Aminoacid transport disorders Cystinuria Dicarboxylic aminoaciduria Hartnup disease Aminoacid storage disorders Glutaric acidemia type 2 External links http www.med.unibs.it marchesi aminoaciddiseases.html medicine stub Aminoacid metabolic pathology Category Aminoacid metabolism disorders ... more details
enzyme Name L aminoacid alpha ligase EC number 6.3.2.28 CAS number IUBMB EC number 6 3 2 28 GO code image width caption Orphan date February 2009 In enzymology , an L aminoacid alpha ligase EC number 6.3.2.28 is an enzyme that catalysis catalyzes the chemical reaction ATP an L aminoacid an L aminoacid math rightleftharpoons math ADP phosphate L aminoacyl L aminoacid Thus, the two substrate biochemistry substrates of this enzyme are adenosine triphosphate ATP and L aminoacid , whereas its 3 product chemistry products are adenosine diphosphate ADP , phosphate , and L aminoacyl L aminoacid . This enzyme belongs to the family of ligase s, specifically those forming carbon nitrogen bonds as acid D aminoacid ligases peptide synthases . The systematic name of this enzyme class is L aminoacid L aminoacid ligase ADP forming . Other names in common use include L aminoacid alpha ligase , bacilysin synthetase , YwfE , and L aminoacid ligase . References reflist 1 cite journal author Tabata K, Ikeda H, Hashimoto S date 2005 title ywfE in Bacillus subtilis codes for a novel enzyme, L aminoacid ligase journal J. Bacteriol. volume 187 pages 5195&ndash 202 pmid 16030213 doi 10.1128 JB.187.15.5195 5202.2005 issue 15 pmc 1196041 ligase stub Category EC 6.3.2 Category Enzymes of unknown structure ... more details
enzyme Name D aminoacid N acetyltransferase EC number 2.3.1.36 CAS number 37257 15 1 IUBMB EC number 2 3 1 36 GO code 0047812 image width caption In enzymology , a D aminoacid N acetyltransferase EC number 2.3.1.36 is an enzyme that catalysis catalyzes the chemical reaction acetyl CoA a D aminoacid math rightleftharpoons math CoA an N acetyl D aminoacid Thus, the two substrate biochemistry substrates of this enzyme are acetyl CoA and D aminoacid , whereas its two product chemistry products are coenzyme A CoA and N acetyl D aminoacid . 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 D aminoacid N acetyltransferase . Other names in common use include D aminoacid acetyltransferase , and D aminoacid alpha N acetyltransferase . This enzyme participates in phenylalanine metabolism . References reflist 1 cite journal author Zenk MH and Schmitt J date 1965 title Reinigung und Eigenschaften von Acetyl CoA D Aminosaure alpha N Acetyltransferase aus Hefe journal Biochem. Z. volume 342 pages 54&ndash 65 transferase stub Category EC 2.3.1 Category Enzymes of unknown structure it D amminoacido N acetiltransferasi ... more details
enzyme Name aromatic aminoacid glyoxylate transaminase EC number 2.6.1.60 CAS number 67185 76 6 IUBMB EC number 2 6 1 60 GO code 0047313 image width caption In enzymology , an aromatic aminoacid glyoxylate transaminase EC number 2.6.1.60 is an enzyme that catalysis catalyzes the chemical reaction an aromatic aminoacid glyoxylate math rightleftharpoons math an aromatic oxo acid glycine Thus, the two substrate biochemistry substrates of this enzyme are aromatic aminoacid and glyoxylate , whereas its two product chemistry products are aromatic oxo acid and glycine . This enzyme belongs to the family of transferase s, specifically the transaminases , which transfer nitrogenous groups. The systematic name of this enzyme class is aromatic aminoacid glyoxylate aminotransferase . References reflist 1 cite journal author Harada I, Noguchi T, Kido R date 1978 title Purification and characterization of aromatic aminoacid glyoxylate aminotransferase from monkey and rat liver journal Hoppe. Seylers. Z. Physiol. Chem. volume 359 pages 481&ndash 8 pmid 25837 issue 4 transferase stub Category EC 2.6.1 Category Enzymes of unknown structure ... more details
enzyme Name N carbamoyl L aminoacid hydrolase EC number 3.5.1.87 CAS number IUBMB EC number 3 5 1 87 GO code 0050538 image width caption In enzymology , a N carbamoyl L aminoacid hydrolase EC number 3.5.1.87 is an enzyme that catalysis catalyzes the chemical reaction N carbamoyl L 2 aminoacid a 2 ureido carboxylate H sub 2 sub O math rightleftharpoons math L 2 aminoacid NH sub 3 sub CO sub 2 sub Thus, the two substrate biochemistry substrates of this enzyme are N carbamoyl L 2 aminoacid and water H sub 2 sub O , whereas its 3 product chemistry products are L 2 aminoacid , ammonia NH sub 3 sub , and carbon dioxide CO sub 2 sub . 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 N carbamoyl L aminoacid amidohydrolase . References reflist 1 cite journal author Ogawa J, Miyake H, Shimizu S date 1995 title Purification and characterization of N carbamoyl L aminoacid amidohydrolase with broad substrate specificity from Alcaligenes xylosoxidans journal Appl. Microbiol. Biotechnol. volume 43 pages 1039&ndash 43 pmid 8590654 doi 10.1007 BF00166922 issue 6 hydrolase stub Category EC 3.5.1 Category Enzymes of unknown structure ... more details
enzyme Name N carbamoyl D aminoacid hydrolase EC number 3.5.1.77 CAS number 71768 08 6 IUBMB EC number 3 5 1 77 GO code 0047417 image width caption In enzymology , a N carbamoyl D aminoacid hydrolase EC number 3.5.1.77 is an enzyme that catalysis catalyzes the chemical reaction N carbamoyl D aminoacid H sub 2 sub O math rightleftharpoons math D aminoacid NH sub 3 sub CO sub 2 sub Thus, the two substrate biochemistry substrates of this enzyme are N carbamoyl D aminoacid and water H sub 2 sub O , whereas its 3 product chemistry products are D aminoacid , ammonia NH sub 3 sub , and carbon dioxide CO sub 2 sub . 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 . Structural studies As of late 2007, 7 tertiary structure structures have been solved for this class of enzymes, with Protein Data Bank PDB accession codes PDB link 1ERZ , PDB link 1UF4 , PDB link 1UF5 , PDB link 1UF7 , PDB link 1UF8 , PDB link 2GGK , and PDB link 2GGL . References reflist 1 cite journal author Ogawa J, Shimizu S, Yamada H date 1993 title N carbamoyl D aminoacid amidohydrolase from Comamonas sp. E222c purification and characterization journal Eur. J. Biochem. volume 212 pages 685&ndash 91 pmid 8462543 doi 10.1111 j.1432 1033.1993.tb17706.x issue 3 hydrolase stub Category EC 3.5.1 Category Enzymes of known structure ... more details
enzyme Name nonpolar aminoacid transporting ATPase EC number 3.6.3.22 CAS number IUBMB EC number 3 6 3 22 GO code 0015425 image width caption In enzymology , a nonpolar aminoacid transporting ATPase EC number 3.6.3.22 is an enzyme that catalysis catalyzes the chemical reaction ATP H sub 2 sub O nonpolar amino acidout math rightleftharpoons math ADP phosphate nonpolar amino acidin The 3 substrate biochemistry substrates of this enzyme are adenosine triphosphate ATP , water H sub 2 sub O , and nonpolar aminoacid , whereas its 3 product chemistry products are adenosine diphosphate ADP , phosphate , and nonpolar aminoacid . This enzyme belongs to the family of hydrolase s, specifically those acting on acid anhydrides to catalyse transmembrane movement of substances. The systematic name of this enzyme class is ATP phosphohydrolase nonpolar aminoacid transporting . References reflist 1 cite journal author Kuan G, Dassa E, Saurin W, Hofnung M, Saier MH Jr year 1995 title Phylogenetic analyses of the ATP binding constituents of bacterial extracytoplasmic receptor dependent ABC type nutrient uptake permeases journal Res. Microbiol. volume 146 pages 271&ndash 8 pmid 7569321 issue 4 doi 10.1016 0923 2508 96 81050 3 cite journal author Saier MH Jr year 1998 title Advances in Microbial Physiology Volume 40 journal Adv. Microb. Physiol. volume 40 pages 81&ndash 136 pmid 9889977 doi 10.1016 S0065 2911 08 60130 7 chapter Molecular Phylogeny as a Basis for the Classification of Transport Proteins from Bacteria, Archaea and Eukarya series Advances in Microbial Physiology isbn 9780120277407 cite journal author Griffiths JK and Sansom CE date title The Transporter Factsbook, Academic Press, San Diego, 1998 journal volume pages Category EC 3.6.3 Category Enzymes of unknown structure hydrolase stub ... more details
of bile acid CoA aminoacid N acyltransferase from human liver journal J. Biol. Chem ... bile acid CoA aminoacid N acyltransferase expression, characterization, and peroxisomal localization ... bile acid CoA aminoacid N acyltransferase functions in the conjugation of fatty acids to glycine ... bile acid CoA ligase journal J. Lipid. Res. volume 43 pages 2062&ndash 71 pmid 12454267 doi 10.1194 ... more details
enzyme Name N methyl L aminoacid oxidase EC number 1.5.3.2 CAS number 9029 23 6 IUBMB EC number 1 5 3 2 GO code 0050131 image width caption In enzymology , a N methyl L aminoacid oxidase EC number 1.5.3.2 is an enzyme that catalysis catalyzes the chemical reaction an N methyl L aminoacid H sub 2 sub O O sub 2 sub math rightleftharpoons math an L aminoacid formaldehyde H sub 2 sub O sub 2 sub The 3 substrate biochemistry substrates of this enzyme are N methyl L aminoacid , water H sub 2 sub O , and oxygen O sub 2 sub , whereas its 3 product chemistry products are L aminoacid , formaldehyde , and hydrogen peroxide H sub 2 sub O sub 2 sub . This enzyme belongs to the family of oxidoreductase s, specifically those acting on the CH NH group of donors with oxygen as acceptor. The systematic name of this enzyme class is N methyl L aminoacid oxygen oxidoreductase demethylating . Other names in common use include N methylamino acid oxidase , and demethylase . It has 2 cofactor biochemistry cofactors FAD , and Flavoprotein . References reflist 1 cite journal author Moritani M date 1952 title Demethylase. IV. Kinetics and reaction mechanism journal Hukuoka Acta Med. volume 43 pages 651&ndash 658 cite journal author Moritani M date 1952 title Demethylase. V. Specificity and its relation to aminoacid oxidase journal Hukuoka Acta Med. volume 43 pages 731&ndash 735 cite journal author HIROHATA R date 1954 title Specificity of rabbit kidney demethylase journal J. Biol. Chem. volume 209 pages 485&ndash 92 pmid 13192101 last2 Tung first2 TC last3 Fujii first3 S last4 Mito first4 H last5 Izumiya first5 N last6 Kenmochi first6 K last7 Hirohata first7 R issue 2 1.5 enzyme stub Category EC 1.5.3 Category Flavin enzymes Category Flavoprotein enzymes Category Enzymes of unknown structure it N metil L amminoacido ossidasi ja N L ... more details
enzyme Name N acyl D aminoacid deacylase EC number 3.5.1.81 CAS number 65979 42 2 IUBMB EC number 3 5 1 81 GO code 0047420 image width caption In enzymology , a N acyl D aminoacid deacylase EC number 3.5.1.81 is an enzyme that catalysis catalyzes the chemical reaction N acyl D aminoacid H sub 2 sub O math rightleftharpoons math an acid D aminoacid Thus, the two substrate biochemistry substrates of this enzyme are N acyl D aminoacid and water H sub 2 sub O , whereas its two product chemistry products are acid and D aminoacid . 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 N acyl D aminoacid amidohydrolase . It employs one cofactor biochemistry cofactor , zinc . Structural studies As of late 2007, 8 tertiary structure structures have been solved for this class of enzymes, with Protein Data Bank PDB accession codes PDB link 1M7J , PDB link 1RJP , PDB link 1RJQ , PDB link 1RJR , PDB link 1RK5 , PDB link 1RK6 , PDB link 1V4Y , and PDB link 1V51 . References reflist 1 cite journal author Wakayama M, Katsuno Y, Hayashi S, Miyamoto Y, Sakai K, Moriguchi M year 1995 title Cloning and sequencing of a gene encoding D aminoacylase from Alcaligenes xylosoxydans subsp. xylosoxydans A 6 and expression of the gene in Escherichia coli journal Biosci. Biotechnol. Biochem. volume 59 pages 2115&ndash 9 pmid 8541651 doi 10.1271 bbb.59.2115 issue 11 cite journal author Wakayama M, Hayashi S, Yatsuda Y, Katsuno Y, Sakai K, Moriguchi M year 1996 title Overproduction of D aminoacylase from Alcaligenes xylosoxydans subsp. xylosoxydans A 6 in Escherichia coli and its purification journal Protein. Expr. Purif. volume 7 pages 395&ndash 9 pmid 8776758 doi 10.1006 prep.1996.0059 issue 4 Category EC 3.5.1 Category Zinc enzymes Category Enzymes of known structure hydrolase stub ... more details
enzyme Name polar aminoacid transporting ATPase EC number 3.6.3.21 CAS number IUBMB EC number 3 6 3 21 GO code 0015426 image width caption In enzymology , a polar aminoacid transporting ATPase EC number 3.6.3.21 is an enzyme that catalysis catalyzes the chemical reaction ATP H sub 2 sub O polar amino acidout math rightleftharpoons math ADP phosphate polar amino acidin The 3 substrate biochemistry substrates of this enzyme are adenosine triphosphate ATP , water H sub 2 sub O , and polar aminoacid , whereas its 3 product chemistry products are adenosine diphosphate ADP , phosphate , and polar aminoacid . This enzyme belongs to the family of hydrolase s, specifically those acting on acid anhydrides to catalyse transmembrane movement of substances. The systematic name of this enzyme class is ATP phosphohydrolase polar aminoacid importing . This enzyme is also called histidine permease . This enzyme participates in abc transporters general . References reflist 1 cite journal author Kuan G, Dassa E, Saurin W, Hofnung M, Saier MH Jr year 1995 title Phylogenetic analyses of the ATP binding constituents of bacterial extracytoplasmic receptor dependent ABC type nutrient uptake permeases journal Res. Microbiol. volume 146 pages 271&ndash 8 pmid 7569321 issue 4 doi 10.1016 0923 2508 96 81050 3 cite journal author Saier MH Jr year 1998 title Advances in Microbial Physiology Volume 40 journal Adv. Microb. Physiol. volume 40 pages 81&ndash 136 pmid 9889977 doi 10.1016 S0065 2911 08 60130 7 chapter Molecular Phylogeny as a Basis for the Classification of Transport Proteins from Bacteria, Archaea and Eukarya series Advances in Microbial Physiology isbn 9780120277407 cite journal author Nikaido K, Liu PQ, Ames GF year 1997 title Purification and characterization of HisP, the ATP binding subunit of a traffic ATPase ABC transporter , the histidine permease of Salmonella typhimurium. Solubility ... A, Poole PS year 1997 title Distribution of a sub class of bacterial ABC polar aminoacid transporter ... more details
DISPLAYTITLE gamma Amino beta hydroxybutyric acid Drugbox IUPAC name 4 amino 3 hydroxybutanoic acid image GABOB.png width 180 image2 GABOB3d.png drug name gamma Amino beta hydroxybutyric acid Clinical data tradename pregnancy AU A B1 B2 B3 C D X pregnancy US A B C D X pregnancy category legal AU Unscheduled S2 S3 S4 S5 S6 S7 S8 S9 legal CA Schedule I, II, III, IV, V, VI, VII, VIII legal UK GSL P POM CD Class A, B, C legal US OTC Rx only Schedule I, II, III, IV, V legal status routes of administration Pharmacokinetic data bioavailability protein bound metabolism elimination half life excretion Identifiers CAS number 352 21 6 ATC prefix ATC suffix PubChem 2149 DrugBank ChemSpiderID 2064 Chemical data C 4 H 9 N 1 O 3 molecular weight 119.12 g mol gamma Amino beta hydroxybutyric acid GABOB , also known as gamibetal or buxamin , is a derivative of the neurotransmitter GABA . It is found naturally in the human body but it is not known whether it has an important physiological role at normal concentrations ... A, Testa G title Effect of gamma amino beta hydroxybutyric acid GABHB on experimentally induced ... Garc a Flores E, Far as R. title Gamma Amino beta hydroxybutyric acid as add on therapy in adult ... GU, Martini L title Gamma amino beta hydroxy butyric acid stimulates prolactin and growth hormone release ... P title Dose related effects of gamma amino beta hydroxy butyric acid GABOB infusion on growth hormone ... supplement . References reflist GHBergics GABAergics DEFAULTSORT Amino beta hydroxybutyric acid, gamma Category Anticonvulsants Category Amino acids Category Hydroxy acids Category Nootropics pt cido gama amino beta hidroxibut rico ... E, Krause DN, Wong E, Mori A title Different efficacies of d and l gamma amino beta hydroxybutyric ... drugs used for improving cerebral insufficiency on gastric acid secretion in rats journal Pharmacology ... W, Yamauchi J, Hosogi H, Ofuji T title Stimulatory effects of gamma aminohydroxybutyric acid GABOB ... more details
The Erlenmeyer Pl chl azlactone and aminoacid synthesis , named after Friedrich Gustav Carl Emil Erlenmeyer who partly discovered the reaction, is a series of chemical reaction s which transform glycine to various other aminoacid s via an oxazolone and an azlactone . ref cite journal author Pl chl J. title ber einige Derivate der Benzoylimdozimts ure journal Chemische Berichte Ber. year 1884 volume 17 pages 1623 url http gallica.bnf.fr ark 12148 bpt6k90700r f39.chemindefer ref ref cite journal author Erlenmeyer, F. title Ueber die Condensation der Hippurs ure mit Phtals ureanhydrid und mit Benzaldehyd journal Ann. year 1893 volume 275 pages 3 doi 10.1002 jlac.18932750102 ref Image AzlactoneChemistry.png 450px center Azlactone chemistry step 2 is a Perkin variation Hippuric acid ref OrgSynth author A. W. Ingersoll, S. H. Babcock title Hippuric acid collvol 2 collvolpages 328 year 1943 prep cv2p0328 ref self condenses in the presence of acetic anhydride to 2 phenyl oxazolone . ref OrgSynth author G. E. VandenBerg, J. B. Harrison, H. E. Carter, B. J. Magerlein title 2 Phenyl 2 oxazolone collvol 5 collvolpages 946 year 1973 prep CV5P0946 ref This intermediate also has two acidic protons and reacts with benzaldehyde , acetic anhydride and sodium acetate to a so called azlactone . This compound on reduction gives access to phenylalanine . ref OrgSynth author H. B. Gillespie, H. R. Snyder title dl &beta Phenylalanine collvol 2 collvolpages 489 year 1943 prep CV2P0489 ref Scope In one study the Erlenmeyer aminoacid synthesis was used in the heart of an L m tyrosine synthesis ref ... Image ErlenMeyerAminoAcidSynthesisTyrosine.svg 600px ErlenMeyer AminoAcid Synthesis Tyrosine References Reflist See also Dakin West reaction Perkin reaction DEFAULTSORT Erlenmeyer Plochl Azlactone And AminoAcid Synthesis Category Condensation reactions Category Heterocycle forming reactions Category ... to dehydroamino acid 3 . Hydrogenation gives the N acyl m tyrosine methyl ester 4 the benzyl ether ... more details
Protein Digestibility Corrected AminoAcid Score PDCAAS is a method of evaluating the protein quality based on both the aminoacid requirements of humans and their ability to digest it. The PDCAAS rating ... corrected aminoacid score journal The Journal of Nutrition volume 130 issue 7 pages 1865S 7S year ... the PDCAAS percentage is mg of limiting aminoacid in 1 g of test protein mg of same aminoacid in 1 g of reference protein x fecal true digestibility percentage. ref name pmid10867064 The PDCAAS ... 2pdf.pdf ref The PER was based upon the aminoacid requirements of growing rats, which noticeably ... of humans as it measures the quality of a protein based on the aminoacid requirements adjusted for digestibility ... Using the PDCAAS method, the protein quality rankings are determined by comparing the aminoacid profile of the specific food protein against a standard aminoacid profile with the highest possible ... 100 percent or more of the indispensable amino acids required. The FDA gave two reasons for adopting the PDCAAS in 1993 1 PDCAAS is based on human aminoacid requirements, which makes it more appropriate for humans than a method based on the aminoacid needs of animals. 2 The Food and Agricultural ... an abundance of an aminoacid that the other is missing, in which case the PDCAAS of the diet ... by scientist Gerjan Schaafsma, The questions about the validity of the aminoacid scoring pattern and the application ... Darragh AJ, Schaafsma G,Moughan PJ title Impact of aminoacid availability on the protein digestibility corrected aminoacid score journal Bulletin publisher International Dairy Federation issn 0259 ... 13 14, 1995 ref In addition the fact that four protein s, all with different aminoacid profiles ... corrected aminoacid score method overestimates quality of proteins containing antinutritional factors ... Digestibility Corrected AminoAcid Score PDCAAS a concept for describing protein quality in foods ... in foods by calculating the amino acids score corrected by digestibility language Spanish journal ... more details
Photo reactive aminoacid 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 aminoacid analogs may be incorporated into proteins and peptides in vivo or in vitro . Photo reactive aminoacid 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 aminoacid 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 covalent ... more details
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