refimprove date January 2011 Infobox protein family Symbol Peptidase C1 Name Cysteine Peptidase image Papain enzyme.png width caption Crystal structure of the cysteine peptidase papain in complex with its ... , PDB2 3f75 , PDB2 3pbh , PDB2 4pad , PDB2 5pad , PDB2 6pad , PDB2 7pck , PDB2 8pch , PDB2 9pap Protease s are enzyme s that degrade protein polypeptides . Cysteine proteases have a common catalysis catalytic mechanism that involves a nucleophile nucleophilic cysteine thiol in a catalytic dyad. The first ... protonated cysteine s anion ic sulfur on the Substrate biochemistry substrate carbonyl carbon ... in the protease is restored to its deprotonated form, and a thioester intermediate linking the new carboxy terminus of the substrate to the cysteine thiol is formed. Therefore they are also sometimes ... . Cysteine proteases are commonly encountered in fruits including papaya , pineapple , Common fig fig and kiwifruit . The proportion of protease tends to be higher when the fruit is unripe. In fact, dozens of latex latices of different plant Family biology families are known to contain cysteine proteases ... ref Cysteine proteases are used as an ingredient in meat tenderizer s. Image Cysteinprotease Reaktionsmechanismus.svg thumb 300px Reaction mechanism of the cysteineprotease mediated cleavage of a peptide bond. TOC Biological importance Cysteine proteases play multi faceted roles, virtually in every ... role of plant cysteine proteinases journal Acta Biochim Polonica. volume 51 issue 38 pages ... C, Gomes TMR, Hernandez M, Lopes MTP title Plant cysteine proteinases Evaluation of the pharmacological ... development. The ability of macrophages and other cells to mobilize elastolytic cysteine proteases ... journal author Chapman HA, Riese RJ, Shi GP. title Emerging roles of cysteine proteases in human biology ... . Plant cysteine proteinases isolated from these plants have been found to have high proteolysis .... ref cite journal author Stepek G, Behnke JM, Buttle DJ, Duce IR. title Natural plant cysteine proteinases ... more details
into six broad groups Serine protease s Threonine protease s Cysteineprotease s Aspartate protease s Metalloprotease s Glutamic acid protease s The threonine and glutamic acid glutamic acid proteases ... of several proteases Proteases medical and related uses more footnotes date January 2009 A protease ... involves making an amino acid residue that has the cysteine and threonine proteases or a water molecule ... is used to activate serine , cysteine , or threonine as a nucleophile. Within each of the broad groups ... 38 2478 2480. ref The net impact of nutritional regulation of protease activity among the thousands ... bacterial protease may also act as an exotoxin, and be an example of a virulence factor in bacterial pathogenesis . Bacterial exotoxic proteases destroy extracellular structures. Protease enzymes ... of their catalytic active site and conditions of action serine proteinases, cysteine thiol proteinases, aspartic proteinases, and metalloproteinase s. Attachment of a protease to a certain group ... by protease inhibitor biology protease inhibitor s. One example of protease inhibitors is the serpin ... . Natural protease inhibitors include the family of lipocalin proteins, which play a role in cell ... to possess tumor protease inhibiting properties. The natural protease inhibitor biology protease inhibitor s are not to be confused with the protease inhibitor pharmacology protease inhibitor s used ... in their reproductive cycle. Thus, protease inhibitor pharmacology protease inhibitor s are developed ... to be cleaved by other protease molecules, sometimes of the same variety. This may be an important method of regulation of protease activity. Protease research The field of protease research is enormous ... each year. For a look at current activities and interests of protease researchers, see the http ... for pioneering the use of protease inhibitors in treating HIV infected patients Proteases in angiogenesis ... Enzymes , 2nd ed. Academic Press, 2003. ISBN 0 12 079610 4. Hedstrom L. Serine Protease ... more details
Unreferenced date December 2009 Cysteine metabolism refers to the biological pathways that consume or create cysteine . The pathways of different amino acids and other metabolites interweave and overlap to creating complex systems. Human cysteine metabolism In human cysteine metabolism, L cysteine is consumed in several ways as shown below. L cysteine is also consumed in methionine and glutathione metabolism as well as pantothenate CoA biosynthesis. class wikitable style text align center L cysteine consumption pathways enzyme product cysteine dioxygenase 3 sulfino L alanine or cysteine sulfinic acid amino acid racemase D cysteinecysteine lyase L cysteate cysteine tRNA ligase L cysteinyl tRNA sup Cys sup cystine reductase L cystine cysteine transaminase 3 mercapto pyruvate L cysteine is the product of several processes as well. In addition to the reactions below, L cysteine is also a product of glycine , serine , and threonine metabolism. class wikitable style text align center L cysteine production pathways starting chemical enzyme O acetyl L serine cysteine synthase L cystine glutathione cystine transhydrogenase pyruvate cystathionine lyase 3 mercapto pyruvate cysteine transaminase See also D cysteine desulfhydrase Sulphur metabolism DEFAULTSORT Cysteine Metabolism Category Sulfur metabolism Category Sulfur amino acids ja ... more details
The TEV protease is a highly site specific cysteineprotease that is found in the Tobacco etch virus Tobacco Etch Virus TEV . The optimum recognition site for this enzyme is the sequence Glu Asn Leu Tyr Phe Gln Gly Ser ENLYFQ G S and cleavage occurs between the Gln and Gly Ser residues. ref name pmid12074568 cite journal author Kapust RB, T zs r J, Copeland TD, Waugh DS title The P1 specificity of tobacco etch virus protease journal Biochem. Biophys. Res. Commun. volume 294 issue 5 pages 949 55 year 2002 month June pmid 12074568 doi 10.1016 S0006 291X 02 00574 0 url ref Some of the advantages of this enzyme are its high specificity and its high activity rate. One of the main uses of this protein is for removing affinity tags from purified proteins. This peptidase belongs to the C4 peptidase family. The molecular weight of this enzyme varies between 25 and 27 kDa depending on the specific construct used. External links http mcl1.ncifcrf.gov waugh tech faq tev.pdf National Cancer Institute TEV FAQ https catalog.invitrogen.com index.cfm?fuseaction viewCatalog.viewProductDetails&productDescription 1009&catname North 20America 20Main Invitrogen s TEV Protease Product Page References reflist Category EC 3.4.22 enzyme stub ... more details
Protease inhibitor can refer to Protease inhibitor pharmacology a class of medication that inhibits viral proteaseProtease inhibitor biology molecules that inhibit proteases disambig ... more details
enzyme Name cysteine lyase EC number 4.4.1.10 CAS number 9079 86 1 IUBMB EC number 4 4 1 10 GO code 0047803 image width caption In enzymology , a cysteine lyase EC number 4.4.1.10 is an enzyme that catalysis catalyzes the chemical reaction L cysteine sulfite math rightleftharpoons math L cysteate hydrogen sulfide Thus, the two substrate biochemistry substrates of this enzyme are L cysteine and sulfite , whereas its two product chemistry products are L cysteate and hydrogen sulfide . This enzyme belongs to the family of lyase s, specifically the class of carbon sulfur lyases. The systematic name of this enzyme class is L cysteine hydrogen sulfide lyase adding sulfite L cysteate forming . Other names in common use include cysteine sulfite lyase , and L cysteine hydrogen sulfide lyase adding sulfite . This enzyme participates in cysteine metabolism and taurine and hypotaurine metabolism . It employs one cofactor biochemistry cofactor , pyridoxal phosphate . References reflist 1 cite journal author Tolosa EA, Chepurnova NK, Khomutov RM, Severin ES date 1969 title Reactions catalysed by cysteine lyase from the yolk sac of chicken embryo journal Biochim. Biophys. Acta. volume 171 pages 369&ndash 71 pmid 5813025 issue 2 lyase stub Category EC 4.4.1 Category Pyridoxal phosphate enzymes Category Enzymes of unknown structure ja ... more details
enzyme Name cysteine transaminase EC number 2.6.1.3 CAS number 9030 32 4 IUBMB EC number 2 6 1 3 GO code 0047801 image width caption In enzymology , a cysteine transaminase EC number 2.6.1.3 is an enzyme that catalysis catalyzes the chemical reaction L cysteine 2 oxoglutarate math rightleftharpoons math mercaptopyruvate L glutamate Thus, the two substrate biochemistry substrates of this enzyme are L cysteine and 2 oxoglutarate , whereas its two product chemistry products are mercaptopyruvate 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 cysteine 2 oxoglutarate aminotransferase . Other names in common use include cysteine aminotransferase , L cysteine aminotransferase , and CGT . This enzyme participates in cysteine metabolism . It employs one cofactor biochemistry cofactor , pyridoxal phosphate . References reflist 1 cite journal author CHATAGNER F, SAURET IGNAZI G date Paris title Role of transamination and pyridoxal phosphate in the enzymatic formation of hydrogen sulfide from cysteine by the rat liver under anaerobiosis. journal Bull. Soc. Chim. volume Biol. pages 415&ndash 28 pmid 13342749 issue 2 3 transferase stub Category EC 2.6.1 Category Pyridoxal phosphate enzymes Category Enzymes of unknown structure ja ... more details
DISPLAYTITLE S Allyl cysteine chembox verifiedrevid 401045767 Name S Allyl cysteine ImageFile Allyl cysteine.png ImageSize 200px ImageName S Allyl cysteine ImageFile1 S allyl cysteine 3D balls.png ImageSize1 200px ImageName1 S Allyl cysteine IUPACName R 2 Amino 3 prop 2 enylsulfanylpropanoic acid OtherNames S 2 propenyl small L small cysteine S allyl laevo cysteine S allylcysteine Section1 Chembox Identifiers Abbreviations SAC InChI 1 C6H13NO2S c1 2 3 10 4 5 7 6 8 9 h2,5 6,8 9H,1,3 4,7H2 t5 m0 s1 InChIKey WRHLYKLSIBWCTJ YFKPBYRVBK StdInChI Ref stdinchicite correct chemspider StdInChI 1S C6H13NO2S c1 2 3 10 4 5 7 6 8 9 h2,5 6,8 9H,1,3 4,7H2 t5 m0 s1 StdInChIKey Ref stdinchicite correct chemspider StdInChIKey WRHLYKLSIBWCTJ YFKPBYRVSA N CASNo 21593 77 1 ChemSpiderID Ref chemspidercite correct chemspider ChemSpiderID 21106477 SMILES OC O C H N CSCC C Section2 Chembox Properties Formula C sub 6 sub H sub 11 sub NO sub 2 sub S MolarMass 161.22 g mol Density 1.191 0.06 g cm sup 3 sup MeltingPt 219 220 C S Allyl cysteine SAC is an organic compound that is a natural constituent of fresh garlic . It is a derivative of the amino acid cysteine in which an allyl group has been added to the sulfur atom. Allyl cysteine is currently being investigated as a potential cholesterol lowering agent ref cite journal author Yeh Y Y Liu L title Cholesterol lowering effect of garlic extracts and organosulfur compounds human and animal studies journal Journal of Nutrition year 2001 volume 131 issue 3s pages 989S 93S pmid 11238803 ref and as a chemopreventive. ref cite journal doi 10.2174 1573394054021772 author Arora, Annu Tripathi, Chitra Shukla, Yogeshwer title Garlic and its organosulfides as potential ... 2 pages 199 205 ref See also Alliin , the S oxide of allyl cysteine References reflist External links http www.thegoodscentscompany.com data rw1593931.html S allyl laevo cysteine , thegoodscentscompany.com DEFAULTSORT Allyl cysteine, S Category Sulfur amino acids Category Antioxidants Category Thioethers ... more details
10.1021 bi00417a058 url ref . If NS2 3 protease does share important similarity with other cysteine proteases, scientists then would be able to propose a model for inhibition of the NS2 3 cysteineprotease ... cysteine proteases revealed a major characteristic which would allow for more specific inhibitor studies. Researchers in this case used cysteine proteases such as papain and poliovirus 3C protease ... proposed the structure for NS2 3 cysteineprotease active site and provided with in vitro co expression ...Orphan date February 2009 NS2 3 protease of hepatitis C virus, HCV is an enzyme responsible for proteolytic ... particle. NS3 protease of hepatitis C virus, on the other hand, is responsible for the cleavage of non ... in finding the actual viral protease domain and predicting possible ways to inhibit the protease ... of the catalytic domain of the hepatitis C virus NS2 3 protease. journal Nature volume 442 issue 7104 pages 831 5 year 2006 pmid 16862121 doi 10.1038 nature04975 url ref . NS2 3 protease is the enzyme responsible for proteolytic cleavage between NS2 and NS3 which are non structural proteins. NS3 protease ... of these proteases are directly involved in HCV genome replication. NS2 3 protease mechanism is essential ... with HCV with fully mutated NS2 3 protease activity didn t develop HCV infection. Inhibitors for protease ... as they all are cysteine proteases ref cite journal author McPhalen CA, James MN title Structural ... crucial crystal forms. NS2 Pro non structural protease monomer is made up of two sub domains ... butterfly . NS2 3 protease is 42 kDa in length. Earlier studies also suggested that it was almost impossible to isolate NS2 3 protease due to hydrophobic nature of the native NS2. Researchers have ... role of NS2 3 protease. His143, Cys184 and Glu 163 are the three crucial resides responsible for proteolytic activity. These three residues together form an active site. Although NS2 protease has ... dimer stability. The NS2 3 protease requires both NS2 and NS3 domain for proteolytic cleavage. Addition ... more details
enzyme Name cysteine desulfurase EC number 2.8.1.7 CAS number IUBMB EC number 2 8 1 7 GO code 0031071 image width caption In enzymology , a cysteine desulfurase EC number 2.8.1.7 is an enzyme that catalysis catalyzes the chemical reaction L cysteine enzyme cysteine math rightleftharpoons math L alanine enzyme S sulfanylcysteine Thus, the two substrate biochemistry substrates of this enzyme are L cysteine and enzyme cysteine , whereas its two product chemistry products are L alanine and enzyme S sulfanylcysteine . This enzyme belongs to the family of transferase s, specifically the sulfurtransferases, which transfer sulfur containing groups. The systematic name of this enzyme class is L cysteine enzyme cysteine sulfurtransferase . Other names in common use include IscS , NIFS , NifS , SufS , and cysteine desulfurylase . This enzyme participates in thiamine metabolism . 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 1T3I . References reflist 1 cite journal author Zheng L, White RH, Cash VL, Jack RF, Dean DR date 1993 title Cysteine desulfurase activity indicates a role for NIFS in metallocluster biosynthesis journal Proc. Natl. Acad. Sci. U.S.A. volume 90 pages 2754&ndash 8 pmid 8464885 doi 10.1073 pnas.90.7.2754 issue 7 pmc 46174 cite journal author Mihara H, Esaki N date 2002 title Bacterial cysteine desulfurases their function and mechanisms journal Appl. Microbiol. Biotechnol. volume 60 pages 12&ndash 23 pmid 12382038 doi 10.1007 s00253 002 1107 4 issue 1 2 cite journal author Frazzon J, Dean DR date 2003 title Formation of iron sulfur clusters in bacteria an emerging field in bioinorganic chemistry journal Curr. Opin. Chem. Biol. volume 7 pages 166&ndash 73 pmid 12714048 doi 10.1016 S1367 5931 03 00021 8 issue 2 transferase stub Category EC 2.8.1 Category Enzymes of known structure ... more details
protein Name cysteine dioxygenase, type I caption image width HGNCid 1795 Symbol CDO1 AltSymbols EntrezGene 1036 OMIM 603943 RefSeq NM 001801 UniProt Q16878 PDB ECnumber 1.13.11.20 Chromosome 5 Arm q Band 23.2 LocusSupplementaryData Cysteine dioxygenase CDO, CAS number 37256 59 0 is a mammalian non heme iron enzyme that catalyze s the conversion of L cysteine to cysteine sulfinic acid cysteine sulfinate by incorporation of dioxygen . Image Cysteine dioxygenase reaction.png frame none CDO reaction scheme showing cysteine sulfinic acid formation from cysteine by dioxygen incorporation Cysteine sulfinic acid lies at a branch point in cysteine catabolism , where it can follow two pathways resulting in the formation of taurine or sulfate . The cysteine sulfinic acid dependent pathway of taurine metabolism follows the synthesis of hypotaurine 2 aminoethane sulfinate , which is subsequently oxidized to taurine. Also, cysteine sulfinate can undergo transamination to form sulfinylpyruvate , decomposing to form pyruvate and sulfite . References cite journal author Sakakibara S, Yamaguchi K, Hosokawa Y, Kohashi N, Ueda I title Purification and some properties of rat liver cysteine oxidase cysteine dioxygenase journal Biochim. Biophys. Acta volume 422 issue 2 pages 273 9 year 1976 month February pmid 2307 doi url cite journal author Chai SC, Jerkins AA, Banik JJ, et al title Heterologous expression, purification, and characterization of recombinant rat cysteine dioxygenase journal J. Biol. Chem. volume 280 issue 11 pages 9865 9 year 2005 month March pmid 15623508 doi 10.1074 jbc.M413733200 url http www.jbc.org cgi pmidlookup?view long&pmid 15623508 cite journal author McCoy JG, Bailey LJ, Bitto E, et al title Structure and mechanism of mouse cysteine dioxygenase journal Proc. Natl. Acad. Sci. U.S.A. volume 103 issue 9 pages 3084 9 year 2006 month February pmid 16492780 pmc 1413891 doi 10.1073 pnas.0509262103 url http www.pnas.org cgi pmidlookup?view long&pmid 16492780 1.13 enzyme ... more details
enzyme Name cysteine synthase EC number 2.5.1.47 CAS number 37290 89 4 IUBMB EC number 2 5 1 47 GO code 0004124 image width caption In enzymology , a cysteine synthase EC number 2.5.1.47 is an enzyme that catalysis catalyzes the chemical reaction O sub 3 sub acetyl L serine hydrogen sulfide math rightleftharpoons math L cysteine acetate Thus, the two substrate biochemistry substrates of this enzyme are O3 acetyl L serine and hydrogen sulfide , whereas its two product chemistry products are L cysteine and acetate . This enzyme belongs to the family of transferase s, specifically those transferring aryl or alkyl groups other than methyl groups. The systematic name of this enzyme class is O3 acetyl L serine hydrogen sulfide 2 amino 2 carboxyethyltransferase . Other names in common use include O acetyl L serine sulfhydrylase , O acetyl L serine sulfohydrolase , O acetylserine thiol lyase , O acetylserine thiol lyase A , O acetylserine sulfhydrylase , O3 acetyl L serine acetate lyase adding hydrogen sulfide , acetylserine sulfhydrylase , cysteine synthetase , S sulfocysteine synthase , 3 O acetyl L serine hydrogen sulfide , and 2 amino 2 carboxyethyltransferase . This enzyme participates in 3 metabolism metabolic pathways cysteine metabolism , selenoamino acid metabolism , and sulfur metabolism . It employs one cofactor biochemistry cofactor , pyridoxal phosphate . Structural studies As of late 2007, 12 tertiary structure structures have been solved for this class of enzymes, with Protein Data Bank PDB accession codes PDB link 1O58 , PDB link 1VE1 , PDB link 1Y7L , PDB link 1Z7W , PDB link 1Z7Y , PDB link 2BHS , PDB link 2BHT , PDB link 2EGU , PDB link 2ISQ , PDB link 2Q3B , PDB link 2Q3C , and PDB link 2Q3D . References reflist 1 cite journal author Becker MA, Kredich NM, Tomkins ... and Murakoshi I date 1987 title Difference between uracilylalanine synthases and cysteine synthases ... F date 1986 title Enzymatic synthesis of the neuroexcitatory amino acid quisqualic by cysteine synthase ... more details
An IgA protease is a highly specific 106kDa enzyme that claves amino acid sequences of certain proteins. The natural substrate of IgA proteases are the inmunoglobulin A , hence its name. The enzyme is in fact capable of cleavage of proteins with the amino acid sequence Cleaves N X Z Pro Pro Y Pro C, where the X in the squence preferably is a Proline or Serine the Y Threonine , Serine or Alanine and Z preferably is Arginine or Threonine . Because of the sequence that the enzyme is able to cleave, it is also called IgAse Pro Pro Y Pro . Thus, the IgA protease act by cleaving the proline rich hinge region of the heavy chain of IgA1. Three major bacteria , Neisseria gonorrhoeae Neisseria gonorrh ae which causes gonorrhea , Streptococcus pneumoniae , and Haemophilus influenzae type B, releases the IgA protease which destroys IgA. ref J Qiu, G P Brackee, and A G Plaut. http www.ncbi.nlm.nih.gov pmc articles PMC173859 Analysis of the specificity of bacterial immunoglobulin A IgA proteases by a comparative study of ape serum IgAs as substrates . Infection and Immunity Infect Immun . 1996 March 64 3 933 937. PMCID PMC173859 ref References reflist Category Peptidase ... more details
Infobox enzyme Name HIV 1 Protease Retropepsin EC number 3.4.23.16 CAS number 144114 21 6 IUBMB EC number 3 4 23 16 GO code GO 000419 image Hiv 1 pdb 1ebz.png width caption HIV 1 protease blue complexed with inhibitor yellow based on PDBe 1EBZ ref cite pmid 12694187 ref HIV 1 protease HIV PR is a retroviral aspartyl protease retropepsin that is essential for the life cycle of HIV , the retrovirus that causes AIDS . ref name pmid2194475 cite journal author Davies DR title The structure and function ... author Brik A, Wong CH title HIV 1 protease mechanism and drug discovery journal Org. Biomol. Chem ... virus protease is required for viral infectivity journal Proc. Natl. Acad. Sci. U.S.A. volume ... H, Turk V, von der Helm K title Human immunodeficiency virus has an aspartic type protease that can ... McPhee F, Good AC, Kuntz ID, Craik CS title Engineering human immunodeficiency virus 1 protease heterodimers ... ref Structure and function Image molecular bulldog face.png thumb 350px left HIV 1 protease ... journal author Perryman AL, Lin JH, McCammon JA title HIV 1 protease molecular dynamics of a wild ... Structure at 2.5 A resolution of chemically synthesized human immunodeficiency virus type 1 protease ... HIV 1 protease with a substrate based inhibitor at 2.3 A resolution journal Science volume 246 issue ...?view long&pmid 2686029 issn doi 10.1126 science.2686029 ref HIV 1 protease as a drug target div style float right width 315px Image HIV protease 1KJF.png thumb 250px right The structure of HIV 1 protease ... 1KJF coordinates. The active site Asp 25 residues are colored red. Image HIV protease 1EBY.png thumb 250px right The structure of HIV 1 protease complexed with inhibitor BEA369 based on the PDB2 ... type 1 protease inhibitors journal Antimicrob. Agents Chemother. volume 47 issue 2 pages 759 69 ... 1 protease the HIV 1 protease structure in interactive 3D MeshName HIV 1 Protease References Reflist ... de HIV Protease fa sl Proteaza HIV ... more details
right 250px X ray crystallography Crystal structure of Trypsin , a typical serine protease. Serine ... journal author Hedstrom, L. title Serine protease mechanism and specificity. journal Chem Rev volume ... Ovaere P, Lippens S, Vandenabeele P, Declercq W. title The emerging roles of serine protease cascades ... , glycine and valine tend to be preferred. Subtilisin like Subtilisin is a serine protease ... in the active site of the enzyme, where catalysis occurs, and is preserved in all serine protease enzymes ... A trypsin elastase Ser 195 hence the name serine protease and aspartic acid Asp 102 . Located very ... acid in the triad performs a specific task in this process Image Serine protease mechanism by snellios.png 400px right serine protease reaction mechanism The serine has an OH group that is able to act ... of the serine protease enzyme such that the scissile bond is inserted into the active site ... that additional amino acids of the protease, Gly 193 and Ser 195 , are involved in creating ... for much of the catalytic efficiency of the enzyme. Regulation of Serine Protease Activity Host ... by a requirement for initial protease activation, and the secretion of inhibitors. Zymogen Activation ... with serine protease Enzyme inhibitor inhibitors , which turn off their activity when they are no longer ... of natural inhibitors called serpins abbreviated from serine protease inhibitor s can form a covalent bond with the serine protease, inhibiting its function. The best studied serpins are antithrombin ..., depending on the normal function of the serine protease. For example, mutations in protein ... Determination of serine protease levels may be useful in the context of particular diseases. Coagulation ... ja pt Serina protease ru sv Serinproteas zh ... more details
Infobox protein family Symbol Thr Name Threonine Protease image Protein PSMA1 PDB 1iru.png image source Protein Data Bank PDB rendering based on 1iru. PDB PDB2 1iru width caption Crystal structure of human proteasome alpha 1 Pfam Pfam clan InterPro SMART PROSITE MEROPS SCOP TCDB OPM family OPM protein PDB Threnonine proteases are a family of proteolytic enzyme s harbouring a threonine Thr residue within the active site. The prototype members of this class of enzymes are the catalysis catalytic subunits of the proteasome . Category Enzymes biochem stub ... more details
Pfam box Symbol Asp Name Eukaryotic aspartyl protease image PDB 1lyb EBI.jpg width caption Structures of native and inhibited forms of human cathepsin D. ref name pmid8393577 cite journal author Baldwin ET, Bhat TN, Gulnik S, et al. title Crystal structures of native and inhibited forms of human cathepsin D implications for lysosomal targeting and drug design journal Proc. Natl. Acad. Sci. U.S.A. volume 90 issue 14 pages 6796 800 year 1993 month July pmid 8393577 pmc 47019 doi 10.1073 pnas.90.14.6796 url ref Pfam PF00026 InterPro IPR001461 SMART PROSITE PDOC00128 SCOP 1mpp TCDB OPM family 108 OPM protein 1lyb PDB PDB3 1j71 A 73 383 PDB3 1eag A 69 386 PDB3 1zap 69 386 PDB3 1yps A 157 477 PDB3 2rmp A 88 423 PDB3 2asi 88 423 PDB3 1mpp 85 420 PDB3 1bbs A 85 405 PDB3 1bim B 85 405 PDB3 1bil A 85 405 PDB3 1hrn B 85 405 PDB3 1rne 85 405 PDB3 1pr7 B 85 405 PDB3 1pr8 A 85 405 PDB3 2ren 85 405 PDB3 1uhq A 85 405 PDB3 1g0v A 90 404 PDB3 1fmx B 90 404 PDB3 1dp5 A 90 404 PDB3 1fq5 A 90 404 PDB3 1dpj A 90 404 PDB3 1fq4 A 90 404 PDB3 1fmu A 90 404 PDB3 2jxr A 90 404 PDB3 1fq7 A 90 404 PDB3 1fq6 A 90 404 PDB3 1fq8 A 90 404 PDB3 1lyw C 78 161 PDB3 1lyb A 78 161 PDB3 1lya C 78 161 PDB3 1b5f B 418 503 PDB3 1qrp E 75 387 PDB3 1psn 75 387 PDB3 1pso E 75 387 PDB3 1flh A 75 387 PDB3 3pep 72 384 PDB3 1f34 ... of protease enzymes that use an aspartate residue for catalysis of their peptide substrates. In general ... structure, arising from ancestral duplication. HIV 1 protease Retroviral and retrotransposon proteases ... conserved features of aspartic peptidases. Examples HIV 1 protease a major drug target for treatment ... Aspartyl protease mechanism.png thumb left 510px Proposed mechanism of peptide cleavage by aspartyl ... A, Wong CH title HIV 1 protease mechanism and drug discovery journal Org. Biomol. Chem. volume 1 issue ... acid proteases InterPro content IPR000036 DEFAULTSORT Aspartate Protease Category Protein domains Category Protein families Category Peripheral membrane proteins de Aspartatproteasen id Aspartat protease ... more details
2 protease family , which are intramembrane metalloproteases, regulate among other things cholesterol biosynthesis and stress responses in bacteria . The different intramembrane protease families ... of the rhomboid protease family limited to just those bacteria with the GlyGly CTERM domain ref D. H ... more details
caption crystal structure of a cysteineprotease proform Pfam PF08246 Pfam clan InterPro IPR013201 ... cruzi cysteineprotease inhibitor chagasin Pfam PF09394 Pfam clan InterPro IPR018990 SMART PROSITE ... inhibitor of papain like cysteineprotease s. ref name pmid11719560 cite journal author ... and localization of chagasin, a tight binding cysteineprotease inhibitor in Trypanosoma cruzi ... Crystal structure of chagasin, the endogenous cysteineprotease inhibitor from Trypanosoma cruzi ..., Rossi A, Sali A, McKerrow JH title The structure of chagasin in complex with a cysteineprotease clarifies ..., a beta trefoil cysteineprotease inhibitor Pfam PF10467 Pfam clan InterPro IPR019508 SMART ...For the drugs used in AIDS protease inhibitor pharmacology In biology and biochemistry , protease inhibitors are molecule s that inhibit the function of protease s. Many naturally occurring protease inhibitors are proteins. In medicine , protease inhibitor is often used interchangeably with alpha 1 antitrypsin ...?id 107400 OMIM PROTEASE INHIBITOR 1 PI Bot generated title ref A1AT is indeed the protease ... Protease inhibitors may be classified either by the type of protease they inhibit, or by their mechanism of action. In 2004 Rawlings and colleagues introduced a classification of protease inhibitors based ..., for example, I14 contains hirudin like inhibitors. By protease Classes of proteases are Aspartic protease inhibitor s Cysteineprotease inhibitor s Metalloprotease inhibitor s Serine protease inhibitor s serpins Threonine protease inhibitor s Trypsin inhibitor s Kunitz STI protease inhibitor ... Protein protease inhibitor see serpins Chelating agents Families Inhibitor I9 Infobox protein family ... inhibitors image PDB 1ixu EBI.jpg width caption solution structure of marinostatin, a protease ..., in a variety of cysteine peptidase inhibitors such as salarin. ref name pmid14505823 cite journal author Olonen A, Kalkkinen N, Paulin L title A new type of cysteine proteinase inhibitor the salarin ... more details
enzyme Name D cysteine desulfhydrase EC number 4.4.1.15 CAS number 84012 74 8 IUBMB EC number 4 4 1 15 GO code 0019148 image width caption In enzymology , a D cysteine desulfhydrase EC number 4.4.1.15 is an enzyme that catalysis catalyzes the chemical reaction D cysteine H sub 2 sub O math rightleftharpoons math sulfide NH sub 3 sub pyruvate Thus, the two substrate biochemistry substrates of this enzyme are D cysteine and water H sub 2 sub O , whereas its 3 product chemistry products are sulfide , ammonia NH sub 3 sub , and pyruvate . This enzyme belongs to the family of lyase s, specifically the class of carbon sulfur lyases. The systematic name of this enzyme class is D cysteine sulfide lyase deaminating pyruvate forming . Other names in common use include D cysteine lyase , and D cysteine sulfide lyase deaminating . This enzyme participates in cysteine metabolism . References reflist 1 cite journal author Nagasawa T, Ishii T, Kumagai H, Yamada H date 1985 title D Cysteine desulfhydrase of Escherichia coli. Purification and characterization journal Eur. J. Biochem. volume 153 pages 541&ndash 51 pmid 3908101 doi 10.1111 j.1432 1033.1985.tb09335.x issue 3 cite journal author Schmidt A date 1982 title A cysteine desulfhydrase from spinach leaves specific for D cysteine journal Z. Pflanzenphysiol. volume 107 pages 301&ndash 312 cite journal author Schmidt A and Erdle I date 1983 title A cysteine desulfhydrase specific for D cysteine from the green alga Chlorella fusca journal Z. Naturforsch. C Biosci. volume 38 pages 428&ndash 435 lyase stub Category EC 4.4.1 Category Enzymes of unknown structure ... more details
L. A. last8 Beattie first8 L. last9 Gardiner first9 D. L. ref A cysteineprotease inhibitor drug ... YM, Engel JC, McKerrow JH title A CysteineProtease Inhibitor Cures Chagas Disease in an Immunodeficient ...for natural protease inhibitors protease inhibitor biology Protease inhibitors PIs are a class of drugs ... replication by inhibiting the activity of proteases, e.g. HIV 1 protease , enzyme s used by the viruses to cleave nascent protein s for final assembly of new virions . Protease inhibitors have been developed ... antiretroviral protease inhibitors saquinavir , ritonavir , indinavir , nelfinavir , amprenavir ref ... different drugs together that are each aimed at different targets. Antiretrovirals Protease inhibitors ..., Invirase Hoffmann La Roche US patent 5196438 It was the first protease inhibitor approved by the Food ..., 1999, making it the sixteenth FDA approved antiretroviral. It was the first protease inhibitor approved ... Activity Researchers are investigating the use of protease inhibitors developed for HIV .... ref name pmid17137752 cite journal author Dunn LA title The activity of protease inhibitors against ... Protease Inhibitors In Vitro against Plasmodium falciparum and In Vivo against Murine Malaria journal ... are investigating whether protease inhibitors could possibly be used to treat cancer. For example ... Nelfinavir, A Lead HIV Protease Inhibitor, Is a Broad Spectrum, Anticancer Agent that Induces Endoplasmic ... first8 N. A. last9 Gardner first9 E. R. ref ref name Pyrko cite journal url title HIV 1 protease ... for the treatment of various cancers, notably Multiple Myeloma . Side Effects Protease inhibitors ... . ref Protease Inhibitor Associated Diabetes Mellitus A Potential Cause of Morbidity and Mortality ... the use of protease inhibitors in treating HIV infected patients The Proteolysis Map Reverse transcriptase ... bl protease inhibitors.htm brief history of the development of protease inhibitors by Hoffman La Roche, Abbott, and Merck HIVpharm Antivirals Enzyme inhibition DEFAULTSORT Protease Inhibitor Pharmacology ... more details
enzyme Name cysteine S conjugate N acetyltransferase EC number 2.3.1.80 CAS number 81725 80 6 IUBMB EC number 2 3 1 80 GO code 0047198 image width caption In enzymology , a cysteine S conjugate N acetyltransferase EC number 2.3.1.80 is an enzyme that catalysis catalyzes the chemical reaction acetyl CoA an S substituted L cysteine math rightleftharpoons math CoA an S substituted N acetyl L cysteine Thus, the two substrate biochemistry substrates of this enzyme are acetyl CoA and S substituted L cysteine , whereas its two product chemistry products are coenzyme A CoA and S substituted N acetyl L cysteine . 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 S substituted L cysteine N acetyltransferase . This enzyme participates in glutathione metabolism . References reflist 1 cite journal author Duffel MW, Jakoby WB date 1982 title Cysteine S conjugate N acetyltransferase from rat kidney microsomes journal Mol. Pharmacol. volume 21 pages 444&ndash 8 pmid 6892478 issue 2 transferase stub Category EC 2.3.1 Category Enzymes of unknown structure it Cisteina S conjugato N acetiltransferasi ... more details
enzyme Name cysteine conjugate transaminase EC number 2.6.1.75 CAS number 117698 05 2 IUBMB EC number 2 6 1 75 GO code 0047802 image width caption In enzymology , a cysteine conjugate transaminase EC number 2.6.1.75 is an enzyme that catalysis catalyzes the chemical reaction S 4 bromophenyl L cysteine 2 oxoglutarate math rightleftharpoons math S 4 bromophenyl mercaptopyruvate L glutamate Thus, the two substrate biochemistry substrates of this enzyme are S 4 bromophenyl L cysteine and 2 oxoglutarate , whereas its two product chemistry products are S 4 bromophenyl mercaptopyruvate 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 S 4 bromophenyl L cysteine 2 oxoglutarate aminotransferase . Other names in common use include cysteine conjugate aminotransferase , and cysteine conjugate alpha ketoglutarate transaminase CAT 1 . References reflist 1 cite journal author Tateishi M date 1988 title Purification and characterization of cysteine conjugate transaminases from rat liver journal Xenobiotica volume 18 pages 1015&ndash 28 pmid 2852419 doi 10.3109 00498258809042224 last2 Ichimoto first2 N last3 Takanohashi first3 Y last4 Ichihara first4 S last5 Fukazawa first5 H last6 Tateishi first6 M issue 9 transferase stub Category EC 2.6.1 Category Enzymes of unknown structure ... more details
chembox verifiedrevid 433880904 ImageFile 3 Sulfino L alanine.svg ImageSize ImageName Skeletal formula ImageFile1 L Cysteine sulfinic acid 3D balls.png ImageSize1 150px ImageName1 Ball and stick model IUPACName 2 amino 3 sulfinopropanoic acid OtherNames Section1 Chembox Identifiers CASNo 2381 08 0 PubChem 109 SMILES C C C O O N S O O MeSHName cysteine sulfinic acid Section2 Chembox Properties Formula C sub 3 sub H sub 7 sub NO sub 4 sub S MolarMass 153.15698 Appearance Density MeltingPt BoilingPt Solubility Section3 Chembox Hazards MainHazards FlashPt Autoignition Cysteine sulfinic acid is an intermediate in cysteine metabolism . It is formed by cysteine dioxygenase . Amino acid metabolism intermediates Category Sulfur amino acids Category Sulfinic acids organic compound stub fa fr Acide cyst ine sulfinique ja ... more details
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