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Glucose 6 phosphate isomerase
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Encyclopedia results for Glucose 6 phosphate isomerase

Glucose 6 phosphate isomerase





Encyclopedia results for Glucose 6 phosphate isomerase

  1. Mannose phosphate isomerase

    protein Name mannose 6 phosphate isomerase caption image Deleted image removed File phosphomannoseisomerase.png thumb Phosphomannose Isomerase visualized with Pymol width HGNCid 7216 Symbol MPI, PMI AltSymbols ... 15 Arm q Band 22 LocusSupplementaryData qter Mannose 6 phosphate isomerase MPI , alternately phosphomannose isomerase PMI EC 5.3.1.8 is an enzyme which facilitates the interconversion of fructose 6 phosphate F6P and mannose 6 phosphate M6P . Mannose 6 Phosphate Isomerase may also enable the synthesis of GDP mannose in eukaryotic organisms. M6P can be converted to F6P by Mannose 6 Phosphate Isomerase ... biosynthesis ref EBI Database, IPRO16305 Mannose 6 phosphate Isomerase. http www.ebi.ac.uk ... of mannose 6 phosphate isomerase from Salmonella typhimurium bound to metal atoms and substrate .... ref Rose, I., O Connell, E., Schray, K. Mannose 6 Phosphate Anomeric Form used by Phosphomannose Isomerase and Its 1 Epimerization by Phosphoglucose Isomerase. American Society of Biological Chemists, October 13 1972. http www.jbc.org content 248 6 2232.full.pdf html ref Phosphoglucose Isomerase PGI has a very similar function to PMI, as it catalyzes the interconversion of Glucose 6 Phosphate and F6P ... to beta M6P, while PMI may not anomerize M6P ref Rose, I., O Connell, E., Schray, K. Mannose 6 Phosphate ... Phosphate Isomerase Notes reflist expand section date May 2011 Intramolecular oxidoreductases Fructose and galactose metabolism enzymes de Mannose 6 phosphat Isomerase fi Mannoosifosfaatti isomeraasi ... 4 phosphate, mannitol 1 phosphate, and to a lesser extent, the alpha anomer of M6P ref Gao, H., Yu, Y., Leary, JA. Mechanism and Kinetics of metalloenzyme phosphomannose isomerase measurement ..., Y. Chu, F., Sun, P. Computational study of human phosphomannose isomerase Insights from homology ... of the mechanism of phosphomannose isomerase may be found in the 1968 Journal of Biological Chemistry ... 5410.full.pdf html Studies on Phosphomannose Isomerase A Mechanism for Catalysis and for the Role of Zinc ...   more details



  1. Isomerase

    In biochemistry , an isomerase is an enzyme that catalyzes the structural rearrangement of isomer s. Isomerases thus catalyze reactions of the form A &rarr B where B is an isomer of A. Nomenclature The names of isomerases are formed as substrate isomerase for example, enoyl CoA isomerase , or as substrate type of isomerase for example, phosphoglucomutase . Classification Isomerases have their own Enzyme Commission number EC classification of enzymes EC 5 . Isomerases can be further classified into six subclasses Category EC 5.1 EC 5.1 includes enzymes that catalyze racemization racemase s and epimer ization epimerase s Category EC 5.2 EC 5.2 includes enzymes that catalyze the isomerization of geometric isomerism geometric isomers cis trans isomerase s Category EC 5.3 EC 5.3 includes intramolecular oxidoreductase s Category EC 5.4 EC 5.4 includes intramolecular transferase s mutase s Category EC 5.5 EC 5.5 includes intramolecular lyase s Category EC 5.99 EC 5.99 includes other isomerases including topoisomerase s References http www.chem.qmul.ac.uk iubmb enzyme EC5 intro.html EC 5 Introduction from the Department of Chemistry at Queen Mary, University of London isomerase. Dorland s Medical Dictionary for Health Consumers. 2007. Saunders, an imprint of Elsevier, Inc 6 Nov. 2009 http medical dictionary.thefreedictionary.com isomerase isomerase. Webster s New World College Dictionary. LoveToKnow, n.d. Web. 6 November 2009. http www.yourdictionary.com isomerase External links http www.gopubmed.org GoMeshPubMed gomeshpubmed ?tool HotTopicDirect&termAlt mesh 237535 GoPubMed Top authors, journals, places publishing on Isomerases Enzymes Isomerases Category Isomerases ar bs Izomeraza bg ca Isomerasa cs Izomer za da Isomerase de Isomerasen es Isomerasa fa fr Isom rase gl Isomerase it Isomerasi he lt Izomeraz s nl Isomerase ja pl Izomerazy pt Isomerase ru sv Isomeras tr zomeraz zh ...   more details



  1. Glucose

    D small Glucose 6 phosphate reaction direction forward reversible reverse forward minor foward substrate ... of the cell. The phosphorylation adds a charged phosphate group so the glucose 6 phosphate cannot easily ... icsc icsc eics0865.htm ICSC 0865 EUIndex not listed This article is about D glucose or dextrose, as noted in the hatnote at the top. The article is NOT about the term Glucose or its denotations. Keep the intro simple. Glucose IPAc en l u k o s or IPAc en k o z C sub 6 sub H sub 12 sub O sub 6 sub , also known as small D small glucose , dextrose , or grape sugar is a simple sugar monosaccharide ... 6 phosphate wpmp.png KEGG compound C00031 KEGG enzyme 2.7.1.1 KEGG compound C00668 KEGG reaction R01786 ...about the naturally occurring small D small form of glucose the small L small form L Glucose Chembox Verifiedfields changed verifiedrevid 464190891 Name small D small glucose ImageFile1 Glucose chain structure.svg ImageSize1 180 ImageCaption1 ImageFile2 D glucose chain 3D balls.png ImageSize2 180 ImageCaption2 PIN D glucose SystematicName 2 R ,3 S ,4 R ,5 R 2,3,4,5,6 Pentahydroxyhexanal OtherNames Blood sugar br Dextrose br Corn sugar br small D small Glucose br Grape sugar Section1 Chembox Identifiers ... Glucose ChEBI Ref ebicite correct EBI ChEBI 4167 KEGG Ref keggcite changed kegg KEGG C00031 ... chemspider StdInChI 1S C12H24O12 c7 1 2 3 8 4 9 5 10 6 11 12 2 h2 11H,1H2 t2 ,3 ,4 ,5 ,6? m1 s1 InChI 1 C12H24O12 c7 1 2 3 8 4 9 5 10 6 11 12 2 h2 11H,1H2 t2 ,3 ,4 ,5 ,6 m1 s1 StdInChIKey Ref stdinchicite ... Beilstein 1281604 Gmelin 83256 3DMet B04623 Section2 Chembox Properties Formula C sub 6 sub H sub 12 sub O sub 6 sub MolarMass 180.16 g mol ExactMass 180.063388 MeltingPt small D small glucose 146  C br small D small glucose 150  C Density 1.54  g cm sup 3 sup Solubility 91  ... Heat capacity measurements and thermodynamic functions of crystalline D glucose at temperatures ... intermediate. Glucose is one of the main products of photosynthesis and starts cellular respiration ...   more details



  1. Phosphate

    correct ?? ImageSizeL1 121 ImageNameL1 Stereo skeletal formula of phosphate ImageFileR1 0 phosphate 3D balls.png ImageFileR1 Ref chemboximage correct ?? ImageSizeR1 121 ImageNameR1 Aromatic ball and stick model of phosphate SystematicName Phosphate ref Cite web title Phosphates PubChem Public ... 94.953420000 g mol sup 1 sup A phosphate , an inorganic chemical , is a Salt chemistry salt of phosphoric acid . In organic chemistry , a phosphate, or organophosphate , is an ester of phosphoric ... cite web url http fipr1.state.fl.us PhosphatePrimer title Phosphate Primer ref ref name Kuntz1 ... to form pyrophosphate s. Chemical properties Image Phosphate formula.svg thumb upright The general chemical structure of an organophosphate. Image Phosphate Group.svg upright thumb This is the structural ... izes as a phosphate group with a negative charge of 2. ref cite book last Campbell first Neil A. authorlink ... Cummings year 2005 location San Francisco, California pages 65 isbn 0 8053 7171 0 ref The phosphate ... arrangement. The phosphate ion carries a negative three formal charge and is the conjugate acid conjugate base of the hydrogen phosphate ion, chem HPO 4 2 , which is the conjugate base of chem H 2 PO 4 , the dihydrogen phosphate ion, which in turn is the conjugate base of chem H 3 PO 4 , phosphoric acid . The phosphate ion is a hypervalent molecule the phosphorus atom has 10 electrons in its valence shell . A phosphate salt forms when a positively charged ion attaches to the negatively charged ... than the corresponding phosphates. The pyrophosphate s are mostly water soluble. Aqueous phosphate exists in four forms. In strongly basic conditions, the phosphate ion chem PO 4 3 predominates, whereas in weakly basic conditions, the hydrogen phosphate ion chem HPO 4 2 is prevalent. In weakly acid conditions, the dihydrogen phosphate ion chem H 2 PO 4 is most common. In strongly acidic conditions, trihydrogen phosphate chem H 3 PO 4 is the main form. gallery widths 100px heights 80px Image 3 phosphoric ...   more details



  1. Glucose-6-phosphate isomerase

    Distinguish D xylose isomerase enzyme Name Glucose 6 phosphate isomerase EC number 5.3.1.9 CAS number 9001 41 6 IUBMB EC number 5 3 1 9 GO code 0004347 image Glucose 6 phosphate isomerase 1GZV wpmp.png ... 1pgi TCDB OPM family OPM protein CAZy CDD PBB geneid 2821 Glucose 6 phosphate isomerase , alternatively ... 6 phosphate isomerase In some archaea and bacteria glucose 6 phosphate isomerase PGI activity occurs ... M title Glucose 6 phosphate isomerase deficiency. journal Baillieres Best Pract. Res. Clin. Haematol ... basis of neurological dysfunction coupled with haemolytic anaemia in human glucose 6 phosphate isomerase ... 6 cite journal author Yakirevich E, Naot Y title Cloning of a glucose phosphate isomerase neuroleukin ... Isomerase es Glucosa 6 fosfato isomerasa fr Glucose 6 phosphate isom rase it Glucosio 6 fosfato ... isomerase from pyrobaculum aerophilum in complex with fructose 6 phosphate Pfam PF10432 Pfam clan ... of glucose 6 phosphate into fructose 6 phosphate in the second step of glycolysis . The human ... Entrez Gene GPI glucose phosphate isomerase url http www.ncbi.nlm.nih.gov sites entrez?Db gene&Cmd ShowDetailView&TermToSearch ... 6 phosphate and fructose 6 phosphate. glucose 6 phosphate fructose 6 phosphate The protein has different ... expression and pathological significance of autocrine motility factor glucose 6 phosphate ... D small Glucose 6 phosphate product small D small Fructose 6 phosphate reaction direction foward ... s minor reverse product s substrate image Alpha D glucose 6 phosphate wpmp.png product image Beta ... glucose ring opening and isomerisation for the interconversion of glucose 6 phosphate to fructose ... P, Morgan MJ title Characterization of the 5 end of the gene for human glucose phosphate isomerase ... cite journal author Faik P, Walker JI, Redmill AA, Morgan MJ title Mouse glucose 6 phosphate ... al. title The first stable variant of erythrocyte glucose phosphate isomerase associated with severe ... tandemly repeated sequence present in an intron of the glucose phosphate isomerase GPI gene in mouse ...   more details



  1. Glucose 6-phosphate

    needs energy or carbon skeletons for synthesis then glucose 6 phosphate is targeted for glycolysis . Glucose 6 phosphate is first isomerized to fructose 6 phosphate by phosphoglucose isomerase . Enzymatic ...chembox verifiedrevid 464363195 ImageFileL1 Glucose 6 Phosphate.svg ImageFileR1 Beta D glucose 6 phosphate ... O O O OC O C H 1O MeSHName Glucose 6 phosphate Section2 Chembox Properties Formula C sub 6 sub H sub ... Hazards MainHazards FlashPt Autoignition Glucose 6 phosphate also known as Robison ester is glucose ... position in cellular chemistry , glucose 6 phosphate has many possible fates within the cell. It lies ... to these metabolic pathways, glucose 6 phosphate may also be converted to glycogen or starch for storage ... 6 phosphate From glucose Within a cell, glucose 6 phosphate is produced by phosphorylation of glucose ... 6 phosphatase substrate small D small Glucose product small D small Glucose 6 phosphate reaction ... Alpha D glucose 6 phosphate wpmp.png KEGG compound C00031 KEGG enzyme 2.7.1.1 KEGG compound C00668 ... diffusion out of the cell. The phosphorylation adds a charged phosphate group so the glucose 6 phosphate cannot easily cross the cell membrane . From glycogen Glucose 6 phosphate is also produced during ... reduction in erythrocytes . This will cause the G6P to be dehydrogenated by glucose 6 phosphate ... small D small Glucose 6 phosphate product small D small Fructose 6 phosphate reaction direction ... substrate s minor reverse product s substrate image Alpha D glucose 6 phosphate wpmp.png product ... C05345 KEGG reaction R00771 This reaction converts glucose 6 phosphate to fructose 6 phosphate in preparation ... the glucose 6 phosphate breakdown to provide energy for ATP production via glycolysis . Storage as glycogen ... being converted to G6P, the molecule can be turned into glucose 1 phosphate by phosphoglucose isomerase phosphoglucose mutase isomerase . Glucose 1 phosphate can then be combined with uridine triphosphate ... and release into bloodstream Liver cells possess glucose 6 phosphatase , which removes the phosphate ...   more details



  1. Ribose-5-phosphate isomerase

    enzyme Name ribose 5 phosphate isomerase EC number 5.3.1.6 CAS number 9023 83 0 IUBMB EC number 5 3 1 6 GO code 0004751 image width caption Ribose 5 phosphate isomerase Rpi is an enzyme that catalyzes the conversion between ribose 5 phosphate R5P and ribulose 5 phosphate Ru5P . Structure and catalysis ... cite journal doi 10.1016 S0969 2126 02 00933 4 title Structure of Escherichia coli Ribose 5 Phosphate Isomerase A Ubiquitous Enzyme of the Pentose Phosphate Pathway and the Calvin Cycle year 2003 ... cycle OPPP enzyme ribose 5 phosphate isomerase EC 5.3.1.6 from spinach chloroplasts year 1996 ... Chemical Society volume 72 pages 1710 issue 4 ref Glyceraldehyde 3 phosphate is converted to glucose .... Rpi Deficiency Ribose 5 phosphate isomerase deficiency is mutated in a rare disorder, Ribose 5 phosphate isomerase deficiency RpiA and the Malaria Parasite RpiA generated attention when the enzyme ..., Ms title Ribose 5 Phosphate Isomerase Deficiency New Inborn Error in the Pentose Phosphate Pathway ... Pentose phosphate isomerase and epimerase from animal tissues journal Biochem. J. volume 64 pages 567 ... J. E. year 1951 title The enzymatic conversion of 6 phosphogluconate to ribulose 5 phosphate ... DEFAULTSORT Ribose 5 Phosphate Isomerase Category EC 5.3.1 Category Enzymes of known structure de Ribose ... and structural insights volume 281 issue 6 pages 3633 41 issn 0021 9258 pmid 16339145 journal ... abbi.1999.1554 year 2000 month Jan author Jung, Ch Hartman, Fc Lu, Ty Larimer, Fw title D ribose 5 phosphate isomerase from spinach heterologous overexpression, purification, characterization, and site ... in the pentose phosphate pathway and the Calvin cycle , RpiA is highly conserved in most organisms ..., as it is involved in the Calvin cycle which takes place in plants, and the pentose phosphate pathway which takes place in plants as well as animals. Metabolic Role Pentose Phosphate Pathway In the non oxidative part of the pentose phosphate pathway , RpiA converts Ru5P to R5P which then is converted ...   more details



  1. Xylose isomerase

    enzyme Name xylose isomerase EC number 5.3.1.5 CAS number 9023 82 9 IUBMB EC number 5 3 1 5 GO code 0009045 image width caption In enzymology , a xylose isomerase EC number 5.3.1.5 is an enzyme that catalysis catalyzes the chemical reaction D xylose math rightleftharpoons math D xylulose This enzyme belongs to the family of isomerase s, specifically those intramolecular oxidoreductase s interconverting aldose s and ketose s. The systematic name of this enzyme class is D xylose aldose ketose isomerase . Other names in common use include D xylose isomerase , D xylose ketoisomerase , and D xylose ketol isomerase . This enzyme participates in pentose and glucuronate interconversions and fructose and mannose metabolism. The enzyme is used industrially to convert glucose to fructose in the manufacture of high fructose corn syrup . It is sometimes referred to as glucose isomerase . Structural studies As of late 2007, 73 tertiary structure structures have been solved for this class of enzymes, with Protein Data Bank PDB accession codes PDB link 1A0C , PDB link 1A0D , PDB link 1A0E , PDB link 1BHW , PDB link 1BXB , PDB link 1BXC , PDB link 1CLK , PDB link 1DID , PDB link 1DIE , PDB link 1DXI , PDB link 1GW9 , PDB link 1MNZ , PDB link 1MUW , PDB link 1O1H , PDB link 1OAD , PDB link 1QT1 , PDB link 1S5M , PDB link 1S5N , PDB link 1XIA , PDB link 1XIB , PDB link 1XIC , PDB link 1XID , PDB link 1XIE , PDB link 1XIF , PDB link 1XIG , PDB link 1XIH , PDB link 1XII , PDB link 1XIJ , PDB link ... 9 pmid 13125579 doi 10.1016 0003 9861 54 90313 6 issue 1 cite journal author Slein MW date 1955 title Xylose isomerase from Pasteurella pestis, strain A 1122 journal J. Am. Chem. Soc. volume 77 pages 1663&ndash 1667 doi 10.1021 ja01611a074 issue 6 cite journal author Yamanaka K date 1968 title Purification, crystallization and properties of the D xylose isomerase from Lactobacillus brevis journal Biochim. Biophys. Acta. volume 151 pages 670&ndash 80 pmid 5646045 issue 3 isomerase stub Category ...   more details



  1. File:Triose phosphate isomerase wpmp.png

    Copy to Wikimedia Commons By Richard Wheeler Zephyris 2006. For the Wikipedia Wikiproject Metabolic Pathways metabolic pathways wikiproject. Licensing GFDL self with disclaimers migration relicense ...   more details



  1. File:Triose phosphate isomerase 2YPI wpmp.png

    Copy to Wikimedia Commons By Richard Wheeler Zephyris 2006. For the Wikipedia Wikiproject Metabolic Pathways metabolic pathways wikiproject. Licensing GFDL self with disclaimers migration relicense Category Protein images ...   more details



  1. Arabinose-5-phosphate isomerase

    enzyme Name arabinose 5 phosphate isomerase EC number 5.3.1.13 CAS number 9023 86 3 IUBMB EC number 5 3 1 13 GO code 0019146 image width caption In enzymology , an arabinose 5 phosphate isomerase EC number 5.3.1.13 is an enzyme that catalysis catalyzes the chemical reaction D arabinose 5 phosphate math rightleftharpoons math D ribulose 5 phosphate Hence, this enzyme has one substrate biochemistry substrate , D arabinose 5 phosphate , and one product chemistry product , D ribulose 5 phosphate . This enzyme belongs to the family of isomerase s, specifically those intramolecular oxidoreductases interconverting aldoses and ketoses. The systematic name of this enzyme class is D arabinose 5 phosphate aldose ketose isomerase . Other names in common use include arabinose phosphate isomerase , phosphoarabinoisomerase , and D arabinose 5 phosphate ketol isomerase . References reflist 1 cite journal author Volk WA date 1960 title Purification and properties of phosphoarabinoisomerase from Propionibacterium pentosaceum journal J. Biol. Chem. volume 235 pages 1550&ndash 1553 isomerase stub Category EC 5.3.1 Category Enzymes of unknown structure ...   more details



  1. Triosephosphate isomerase

    12 Arm p Band 13 LocusSupplementaryData Triose phosphate isomerase TPI or TIM , is an enzyme EC number 5.3.1.1 that catalyst catalyzes the reversible interconversion of the triose phosphate isomer s dihydroxyacetone phosphate and D glyceraldehyde 3 phosphate . Image TriosePhosphateIsomerase Ribbon pastel whitebkg.jpg thumb 300px Side view of triose P isomerase monomer, active site at top center Enzymatic Reaction foward enzyme triose phosphate isomerase reverse enzyme triose phosphate isomerase substrate Dihydroxyacetone phosphate product small D small glyceraldehyde 3 phosphate reaction ..., severe neurological disorder called Triose Phosphate Isomerase deficiency triose phosphate isomerase deficiency . Triose phosphate isomerase deficiency is characterized by chronic hemolytic ... pmid 17424909 unused data DUPLICATE DATA coauthors Ov di, J. ref Triose phosphate isomerase is a highly ... mechanism of triose phosphate isomerase. journal Phil. Trans. R. Soc. volume 293 issue 1063 pages ... coauthors Davenport, R.C. title Triose Phosphate Isomerase Removal of a Putatively Electrophilic ... Phosphate Isomerase Mechanism TPI is diffusion limited. In terms of thermodynamics, DHAP formation ... phosphate isomerase from Trypanosama brucei brucei journal European Journal of Biochemistry volume ... 300px Side view of triose phosphate isomerase dimer. Structure Triose phosphate isomerase is a protein ... phosphate isomerase contributes to its function. Besides the precisely placed glutamate and histidine ... DATA coauthors Komives, E.A. ref br style clear both See also TIM barrel Triose Phosphate Isomerase ...protein name triosephosphate isomerase 1 caption The structure of human TPI PDB 1WYI image width HGNCid ... reverse substrate s minor reverse product s substrate image glycerone phosphate wpmp.png product image D glyceraldehyde 3 phosphate wpmp.png KEGG compound C00111 KEGG enzyme 5.3.1.1 KEGG compound ... Ol h, J. title Triosephosphate isomerase deficiency facts and doubts journal IUBMB Life volume ...   more details



  1. Retinal isomerase

    enzyme Name retinal isomerase EC number 5.2.1.3 CAS number 9023 76 1 IUBMB EC number 5 2 1 3 GO code 0004744 image width caption In enzymology , a retinal isomerase EC number 5.2.1.3 is an enzyme that catalysis catalyzes the chemical reaction all trans retinal math rightleftharpoons math 11 cis retinal Hence, this enzyme has one substrate biochemistry substrate , all trans retinal , and one product chemistry product , 11 cis retinal . This enzyme belongs to the family of isomerase s, specifically Cis trans isomerism cis trans isomerases . The systematic name of this enzyme class is all trans retinal 11 cis trans isomerase . Other names in common use include retinene isomerase , and retinoid isomerase . This enzyme participates in retinol metabolism . References reflist 1 cite journal author HUBBARD R date 1956 title Retinene isomerase journal J. Gen. Physiol. volume 39 pages 935&ndash 62 pmid 13346046 doi 10.1085 jgp.39.6.935 issue 6 pmc 2147571 cite journal author Shichi H, Somers RL date 1974 title Possible involvement of retinylidene phospholipid in photoisomerization of all trans retinal to 11 cis retinal journal J. Biol. Chem. volume 249 pages 6570&ndash 7 pmid 4472816 issue 20 isomerase stub Category EC 5.2.1 Category Enzymes of unknown structure ...   more details



  1. Chalcone isomerase

    enzyme Name chalcone isomerase EC number 5.5.1.6 CAS number 9073 57 8 IUBMB EC number 5 5 1 6 GO code 0045430 image width caption Infobox protein family Symbol Chalcone Name Chalcone isomerase image PDB 1jep EBI.jpg width caption chalcone isomerase complexed with 4 hydroxyflavanone Pfam PF02431 Pfam clan InterPro IPR003466 SMART PROSITE MEROPS SCOP 1eyp TCDB OPM family OPM protein CAZy CDD In enzymology , a chalcone isomerase EC number 5.5.1.6 is an enzyme that catalysis catalyzes the chemical reaction a chalcone math rightleftharpoons math a flavanone Hence, this enzyme has one substrate biochemistry substrate , a chalconoid chalcone , and one product chemistry product , a flavanone . This enzyme belongs to the family of isomerase s, specifically the class of intramolecular lyases. The systematic name of this enzyme class is flavanone lyase decyclizing . This enzyme is also called chalcone flavanone isomerase . This enzyme participates in flavonoid biosynthesis . The Petunia hybrida Petunia genome contains two genes coding for very similar enzymes, ChiA and ChiB, but only the first seems to encode a functional chalcone isomerase. 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 1EYP , PDB link 1EYQ , PDB link 1FM7 , PDB link 1FM8 , PDB link 1JEP , PDB link 1JX0 , and PDB link 1JX1 . Chalcone isomerase has a core 2 layer alpha beta secondary structure structure consisting of beta 3 alpha 2 beta alpha 2 beta 3 . ref name pmid10966651 cite journal author Jez JM, Bowman ... chalcone isomerase journal Nat. Struct. Biol. volume 7 issue 9 pages 786 91 year 2000 month September ... author Moustafa E and Wong E year 1967 title Purification and properties of chalcone flavanone isomerase from soya bean seed journal Phytochemistry journal Phytochemistry volume 6 pages 625&ndash 632 ... EC 5.5.1 Category Enzymes of known structure isomerase stub ...   more details



  1. Phosphoribosylanthranilate isomerase

    enzyme Name phosphoribosylanthranilate isomerase EC number 5.3.1.24 CAS number 37259 82 8 IUBMB EC number 5 3 1 24 GO code 0004640 image width caption Infobox protein family Symbol PRAI Name PRAI image PDB 1dl3 EBI.jpg width caption crystal structure of mutually generated monomers of dimeric phosphoribosylantranilate isomerase from thermotoga maritima Pfam PF00697 Pfam clan CL0036 InterPro IPR001240 SMART PROSITE MEROPS SCOP 1pii TCDB OPM family OPM protein CAZy CDD In enzymology , a phosphoribosylanthranilate isomerase EC number 5.3.1.24 is an enzyme that catalysis catalyzes the third step of tryptophan biosynthesis . ref cite journal author Creighton TE and Yanofsky C date 1970 title Chorismate to tryptophan Escherichia coli Anthranilate synthetase, PR transferase, PRA isomerase, InGP synthetase, tryptophan synthetase journal Methods Enzymol. volume 17A pages 365&ndash 380 ref N 5 phospho beta D ribosyl anthranilate math rightleftharpoons math 1 2 carboxyphenylamino 1 deoxy D ribulose 5 phosphate Hence, this enzyme has one substrate biochemistry substrate , N 5 phospho beta D ribosyl anthranilate , and one product chemistry product , 1 2 carboxyphenylamino 1 deoxy D ribulose 5 phosphate . This enzyme belongs to the family of isomerase s, specifically those intramolecular oxidoreductase ... beta D ribosyl anthranilate aldose ketose isomerase . Other names in common use include PRA isomerase , PRAI , IGPS PRAI indole 3 glycerol phosphate , synthetase N 5 phosphoribosylanthranilate isomerase complex , and N 5 phospho beta D ribosyl anthranilate ketol isomerase . This enzyme participates ... isomerase PRAI is monomeric and labile in most mesophilic microorganisms, but protein dimer ... generated monomers of dimeric phosphoribosylanthranilate isomerase from Thermotoga maritima journal ... at 2.0 A resolution of phosphoribosyl anthranilate isomerase from the hyperthermophile Thermotoga maritima ... InterPro content IPR001240 isomerase stub Category EC 5.3.1 Category Enzymes of known structure Category ...   more details



  1. Glucose cycle

    Unreferenced stub auto yes date December 2009 Orphan date December 2009 The glucose cycle also known as the hepatic futile cycle occurs primarily in the liver and is the dynamic equilibrium between glucose and glucose 6 phosphate . This is important for maintaining a constant concentration of glucose in the blood stream . Function The glucose cycle is required for one of the liver functions the homeostasis of glucose in the blood stream. When blood glucose levels are in excess, glucose can be stored in the liver as glycogen . When glucose levels in the blood stream are low the glycogen can be catabolism catabolised and glucose may re enter the blood stream. The catabolic process occurs at the nonreducing end of glycogen. A phosphate group breaks the bond between C 1 of a glucose ring and the O that connects it to the next phosphorolysis . One glucose unit is thus split off. Glycogen with n glucose units is converted into G 1 P a PO sub 4 sub group now attaches to C1 where O used to and glycogen with n 1 glucose units by enzyme glycogen phosphorylase. G 1 P is then converted into G 6 P by enzyme phosphoglucomutase. A water molecule hydrolyses G 6 P to glucose, the enzyme is glucose 6 phosphatase. Cell specificity When glucose enters a cell it is rapidly changed to glucose 6 phosphate, by hexokinase . The glucose cycle can occur in liver cells due to a liver specific enzyme glucose 6 phosphatase , which catalyse the dephosphorylation of glucose 6 phosphate back to glucose. Glucose 6 phosphate is the product of glycogenolysis or gluconeogenesis , where the goal is to increase free glucose in the blood due body being in catabolic state. Other cells such as muscle and brain cells do not contain glucose 6 phosphatase. As a result, any glucose 6 phosphate produced in those cells ... insulin and glucagon as well as allosteric regulation of both hexokinase and glucose 6 phosphatase. Diseases associated with glucose cycle A deficiency in glucose 6 phosphatase that disrupts the liver ...   more details



  1. Glucose 1-phosphate

    unreferenced date June 2010 chembox verifiedrevid 443837963 ImageFile Glucose 1 phosphate.svg ImageSize 150px ImageFile2 Cori ester.gif ImageSize2 150px IUPACName Glucose 1 phosphate OtherNames Section1 Chembox Identifiers ChemSpiderID Ref chemspidercite correct chemspider ChemSpiderID 388311 InChI 1 C6H13O9P c7 1 2 3 8 4 9 5 10 6 14 2 15 16 11,12 13 h2 10H,1H2, H2,11,12,13 t2 ,3 ,4 ,5 ,6? m1 s1 InChIKey HXXFSFRBOHSIMQ GASJEMHNBR StdInChI Ref stdinchicite correct chemspider StdInChI 1S C6H13O9P c7 1 2 3 8 4 9 5 10 6 14 2 15 16 11,12 13 h2 10H,1H2, H2,11,12,13 t2 ,3 ,4 ,5 ,6? m1 s1 StdInChIKey Ref stdinchicite correct chemspider StdInChIKey HXXFSFRBOHSIMQ GASJEMHNSA N CASNo Ref cascite correct CAS CASNo 59 56 3 PubChem 65533 ChEBI Ref ebicite correct EBI ChEBI 16077 SMILES O P O OC1O C H C H O C H O C H 1O CO O MeSHName glucose 1 phosphate Section2 Chembox Properties Formula C6H13O9P MolarMass 260.136 Appearance Density MeltingPt BoilingPt Section3 Chembox Hazards Solubility MainHazards FlashPt Autoignition Glucose 1 phosphate also called cori ester is a glucose molecule with a phosphate group on the 1 carbon. Reactions Catabolic In glycogenolysis , it is the direct product of the reaction in which glycogen phosphorylase cleaves off a molecule of glucose from a greater glycogen structure. To be utilized in cellular catabolism it must first be converted to glucose 6 phosphate by the enzyme phosphoglucomutase . One reason that cells form glucose 1 phosphate instead of glucose during glycogen breakdown is that the very polar phosphorylated glucose cannot leave the cell membrane and so is marked for intracellular catabolism. Anabolic In glycogenesis , free glucose 1 phosphate can also react with UTP to form UDP glucose , by using the enzyme UDP glucose pyrophosphorylase . It can then return to the greater glycogen structure via glycogen synthase . See also Pentose phosphate ... metabolic intermediates Fructose and galactose metabolic intermediates de Glucose 1 ...   more details



  1. Mannose isomerase

    enzyme Name mannose isomerase EC number 5.3.1.7 CAS number 9031 25 8 IUBMB EC number 5 3 1 7 GO code 0050089 image width caption In enzymology , a mannose isomerase EC number 5.3.1.7 is an enzyme that catalysis catalyzes the chemical reaction D mannose math rightleftharpoons math D fructose Hence, this enzyme has one substrate biochemistry substrate , D mannose , and one product chemistry product , D fructose . This enzyme belongs to the family of isomerase s, specifically those intramolecular oxidoreductase s interconverting aldose s and ketose s. The systematic name of this enzyme class is D mannose aldose ketose isomerase . Other names in common use include D mannose isomerase , and D mannose ketol isomerase . This enzyme participates in fructose and mannose metabolism . References reflist 1 cite journal author Palleroni NJ and Doudoroff M date 1956 title Mannose isomerase of Pseudomonas saccharophila journal J. Biol. Chem. volume 218 pages 535&ndash 548 pmid 13278359 isomerase stub Category EC 5.3.1 Category Enzymes of unknown structure ...   more details



  1. Ribose isomerase

    enzyme Name ribose isomerase EC number 5.3.1.20 CAS number 57534 76 6 IUBMB EC number 5 3 1 20 GO code 0050261 image width caption In enzymology , a ribose isomerase EC number 5.3.1.20 is an enzyme that catalysis catalyzes the chemical reaction D ribose math rightleftharpoons math D ribulose Hence, this enzyme has one substrate biochemistry substrate , D ribose , and one product chemistry product , D ribulose . This enzyme belongs to the family of isomerase s, specifically those intramolecular oxidoreductase s interconverting aldose s and ketose s. The systematic name of this enzyme class is D ribose aldose ketose isomerase . Other names in common use include D ribose isomerase , and D ribose ketol isomerase . References reflist 1 cite journal author Izumori K, Rees AW, Elbein AD date 1975 title Purification, crystallization, and properties of D ribose isomerase from Mycobacterium smegmatis journal J. Biol. Chem. volume 250 pages 8085&ndash 7 pmid 240851 issue 20 isomerase stub Category EC 5.3.1 Category Enzymes of unknown structure ...   more details



  1. Glucuronate isomerase

    enzyme Name glucuronate isomerase EC number 5.3.1.12 CAS number 9023 87 4 IUBMB EC number 5 3 1 12 GO code 0008880 image width caption In enzymology , a glucuronate isomerase EC number 5.3.1.12 is an enzyme that catalysis catalyzes the chemical reaction D glucuronate math rightleftharpoons math D fructuronate Hence, this enzyme has one substrate biochemistry substrate , D glucuronate , and one product chemistry product , D fructuronate . This enzyme belongs to the family of isomerase s, specifically those intramolecular oxidoreductase s interconverting aldose s and ketose s. The systematic name of this enzyme class is D glucuronate aldose ketose isomerase . Other names in common use include uronic isomerase , uronate isomerase , D glucuronate isomerase , uronic acid isomerase , and D glucuronate ketol isomerase . This enzyme participates in pentose and glucuronate interconversions . Structural studies As of late 2007, two tertiary structure structures have been solved for this class of enzymes, with Protein Data Bank PDB accession codes PDB link 1J5S and PDB link 2Q01 . References reflist 1 cite journal author Ashwell G, Wahba AJ and Hickman J year 1960 title Uronic acid metabolism in bacteria. I. Purification and properties of uronic acid isomerase in Escherichia coli journal J. Biol. Chem. volume 235 pages 1559&ndash 1565 pmid 13794771 cite journal author KILGORE WW, STARR MP year 1959 title Catabolism of galacturonic and glucuronic acids by Erwinia carotovora journal J. Biol. Chem. volume 234 pages 2227&ndash 35 pmid 14409051 Category EC 5.3.1 Category Enzymes of known structure isomerase stub ...   more details



  1. Linoleate isomerase

    enzyme Name linoleate isomerase EC number 5.2.1.5 CAS number 37318 41 5 IUBMB EC number 5 2 1 5 GO code 0050058 image width caption In enzymology , a linoleate isomerase EC number 5.2.1.5 is an enzyme that catalysis catalyzes the chemical reaction 9 cis,12 cis octadecadienoate math rightleftharpoons math 9 cis,11 trans octadecadienoate Hence, this enzyme has one substrate biochemistry substrate , 9 cis,12 cis octadecadienoate , and one product chemistry product , 9 cis,11 trans octadecadienoate . This enzyme belongs to the family of isomerase s, specifically Cis trans isomerism cis trans isomerases . The systematic name of this enzyme class is linoleate Delta12 cis Delta11 trans isomerase . This enzyme is also called linoleic acid isomerase . This enzyme participates in linoleic acid metabolism . References reflist 1 cite journal author Kepler CR, Tove SB date 1967 title Biohydrogenation of unsaturated fatty acids. 3. Purification and properties of a linoleate delta 12 cis, delta 11 trans isomerase from Butyrivibrio fibrisolvens journal J. Biol. Chem. volume 242 pages 5686&ndash 92 pmid 5633396 issue 24 isomerase stub Category EC 5.2.1 Category Enzymes of unknown structure ...   more details



  1. Hydroxypyruvate isomerase

    enzyme Name hydroxypyruvate isomerase EC number 5.3.1.22 CAS number 74812 48 9 IUBMB EC number 5 3 1 22 GO code 0008903 image width caption In enzymology , a hydroxypyruvate isomerase EC number 5.3.1.22 is an enzyme that catalysis catalyzes the chemical reaction hydroxypyruvate math rightleftharpoons math 2 hydroxy 3 oxopropanoate Hence, this enzyme has one substrate biochemistry substrate , hydroxypyruvate , and one product chemistry product , 2 hydroxy 3 oxopropanoate . This enzyme belongs to the family of isomerase s, specifically those intramolecular oxidoreductase s interconverting aldose s and ketose s. The systematic name of this enzyme class is hydroxypyruvate aldose ketose isomerase . This enzyme participates in glyoxylate and dicarboxylate metabolism . References reflist 1 cite journal author de Windt FE, van der Drift C date 1980 title Purification and some properties of hydroxypyruvate isomerase of Bacillus fastidiosus journal Biochim. Biophys. Acta. volume 613 pages 556&ndash 62 pmid 7448201 issue 2 isomerase stub Category EC 5.3.1 Category Enzymes of unknown structure ...   more details



  1. Thiocyanate isomerase

    enzyme Name thiocyanate isomerase EC number 5.99.1.1 CAS number 9023 71 6 IUBMB EC number 5 99 1 1 GO code 0050335 image width caption In enzymology , a thiocyanate isomerase EC number 5.99.1.1 is an enzyme that catalysis catalyzes the chemical reaction benzyl isothiocyanate math rightleftharpoons math benzyl thiocyanate Hence, this enzyme has one substrate biochemistry substrate , benzyl isothiocyanate , and one product chemistry product , benzyl thiocyanate . This enzyme belongs to the family of isomerase s, specifically those other isomerases sole sub subclass for isomerases that do not belong in the other subclasses. The systematic name of this enzyme class is benzyl thiocyanate isomerase . This enzyme is also called isothiocyanate isomerase . References reflist 1 cite journal author Virtanen AI date 1962 title On enzymic and chemical reactions in crushed plants journal Arch. Biochem. Biophys. Suppl. volume 1 pages 200&ndash 208 isomerase stub Category EC 5.99.1 Category Enzymes of unknown structure ...   more details



  1. S-methyl-5-thioribose-1-phosphate isomerase

    enzyme Name S methyl 5 thioribose 1 phosphate isomerase EC number 5.3.1.23 CAS number 91608 95 6 IUBMB EC number 5 3 1 23 GO code 0046523 image width caption In enzymology , a S methyl 5 thioribose 1 phosphate isomerase EC number 5.3.1.23 is an enzyme that catalysis catalyzes the chemical reaction S methyl 5 thio alpha D ribose 1 phosphate math rightleftharpoons math S methyl 5 thio D ribulose 1 phosphate Hence, this enzyme has one substrate biochemistry substrate , S methyl 5 thio alpha D ribose 1 phosphate , and one product chemistry product , S methyl 5 thio D ribulose 1 phosphate . This enzyme belongs to the family of isomerase s, specifically those intramolecular oxidoreductase s interconverting aldose s and ketose s. The systematic name of this enzyme class is S methyl 5 thio alpha D ribose 1 phosphate aldose ketose isomerase . Other names in common use include methylthioribose 1 phosphate isomerase , 1 PMTR isomerase , 5 methylthio 5 deoxy D ribose 1 phosphate ketol isomerase , S methyl 5 thio 5 deoxy D ribose 1 phosphate ketol isomerase , S methyl 5 thio 5 deoxy D ribose 1 phosphate , aldose ketose isomerase , 1 phospho 5 S methylthioribose isomerase , and S methyl 5 thio D ribose 1 phosphate aldose ketose isomerase . This enzyme participates in methionine metabolism . Structural studies As of late 2007, two tertiary structure structures have been solved for this class of enzymes, with Protein Data Bank PDB accession codes PDB link 1T9K and PDB link 1W2W . References reflist 1 cite journal author RH date 1984 title Characterization of a defect in the pathway for converting 5 deoxy 5 methylthioadenosine to methionine in a subline of a cultured heterogeneous human colon carcinoma journal J. Biol. Chem. volume 259 pages 6715&ndash 9 pmid 6725268 last2 Savarese first2 TM last3 Dexter first3 DL last4 Parks Jr first4 RE last5 Trackman first5 PC last6 Abeles first6 RH ... issue 20 isomerase stub Category EC 5.3.1 Category Enzymes of known structure ...   more details



  1. Arabinose isomerase

    enzyme Name arabinose isomerase EC number 5.3.1.3 CAS number 9023 81 8 IUBMB EC number 5 3 1 3 GO code 0008790 image width caption In enzymology , an arabinose isomerase EC number 5.3.1.3 is an enzyme that catalysis catalyzes the chemical reaction D arabinose math rightleftharpoons math D ribulose Hence, this enzyme has one substrate biochemistry substrate , D arabinose , and one product chemistry product , D ribulose . This enzyme belongs to the family of isomerase s, specifically those intramolecular oxidoreductases interconverting aldoses and ketoses. The systematic name of this enzyme class is D arabinose aldose ketose isomerase . Other names in common use include D arabinose L fucose isomerase , D arabinose isomerase , L fucose isomerase , and D arabinose ketol isomerase . 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 1FUI . References reflist 1 cite journal author Cohen SS date 1953 title Studies on D ribulose and its enzymatic conversion to D arabinose journal J. Biol. Chem. volume 201 issue 1 pages 71&ndash 84 pmid 13044776 cite journal author Green M and Cohen SS date 1956 title Enzymatic conversion of L fucose to L fuculose journal J. Biol. Chem. volume 219 issue 2 pages 557&ndash 568 pmid 13319278 isomerase stub Category EC 5.3.1 Category Enzymes of known structure ...   more details




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