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HIS5_DEIRA
ID   HIS5_DEIRA              Reviewed;         215 AA.
AC   Q9RX89;
DT   08-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-2000, sequence version 1.
DT   25-MAY-2022, entry version 124.
DE   RecName: Full=Imidazole glycerol phosphate synthase subunit HisH;
DE            EC=4.3.2.10;
DE   AltName: Full=IGP synthase glutaminase subunit;
DE            EC=3.5.1.2;
DE   AltName: Full=IGP synthase subunit HisH;
DE   AltName: Full=ImGP synthase subunit HisH;
DE            Short=IGPS subunit HisH;
GN   Name=hisH; OrderedLocusNames=DR_0426;
OS   Deinococcus radiodurans (strain ATCC 13939 / DSM 20539 / JCM 16871 / LMG
OS   4051 / NBRC 15346 / NCIMB 9279 / R1 / VKM B-1422).
OC   Bacteria; Deinococcus-Thermus; Deinococci; Deinococcales; Deinococcaceae;
OC   Deinococcus.
OX   NCBI_TaxID=243230;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 13939 / DSM 20539 / JCM 16871 / LMG 4051 / NBRC 15346 / NCIMB
RC   9279 / R1 / VKM B-1422;
RX   PubMed=10567266; DOI=10.1126/science.286.5444.1571;
RA   White O., Eisen J.A., Heidelberg J.F., Hickey E.K., Peterson J.D.,
RA   Dodson R.J., Haft D.H., Gwinn M.L., Nelson W.C., Richardson D.L.,
RA   Moffat K.S., Qin H., Jiang L., Pamphile W., Crosby M., Shen M.,
RA   Vamathevan J.J., Lam P., McDonald L.A., Utterback T.R., Zalewski C.,
RA   Makarova K.S., Aravind L., Daly M.J., Minton K.W., Fleischmann R.D.,
RA   Ketchum K.A., Nelson K.E., Salzberg S.L., Smith H.O., Venter J.C.,
RA   Fraser C.M.;
RT   "Genome sequence of the radioresistant bacterium Deinococcus radiodurans
RT   R1.";
RL   Science 286:1571-1577(1999).
CC   -!- FUNCTION: IGPS catalyzes the conversion of PRFAR and glutamine to IGP,
CC       AICAR and glutamate. The HisH subunit catalyzes the hydrolysis of
CC       glutamine to glutamate and ammonia as part of the synthesis of IGP and
CC       AICAR. The resulting ammonia molecule is channeled to the active site
CC       of HisF (By similarity). {ECO:0000250}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=5-[(5-phospho-1-deoxy-D-ribulos-1-ylimino)methylamino]-1-(5-
CC         phospho-beta-D-ribosyl)imidazole-4-carboxamide + L-glutamine = 5-
CC         amino-1-(5-phospho-beta-D-ribosyl)imidazole-4-carboxamide + D-
CC         erythro-1-(imidazol-4-yl)glycerol 3-phosphate + H(+) + L-glutamate;
CC         Xref=Rhea:RHEA:24793, ChEBI:CHEBI:15378, ChEBI:CHEBI:29985,
CC         ChEBI:CHEBI:58278, ChEBI:CHEBI:58359, ChEBI:CHEBI:58475,
CC         ChEBI:CHEBI:58525; EC=4.3.2.10;
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + L-glutamine = L-glutamate + NH4(+);
CC         Xref=Rhea:RHEA:15889, ChEBI:CHEBI:15377, ChEBI:CHEBI:28938,
CC         ChEBI:CHEBI:29985, ChEBI:CHEBI:58359; EC=3.5.1.2;
CC   -!- PATHWAY: Amino-acid biosynthesis; L-histidine biosynthesis; L-histidine
CC       from 5-phospho-alpha-D-ribose 1-diphosphate: step 5/9.
CC   -!- SUBUNIT: Heterodimer of HisH and HisF. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250}.
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DR   EMBL; AE000513; AAF10003.1; -; Genomic_DNA.
DR   PIR; H75520; H75520.
DR   RefSeq; NP_294149.1; NC_001263.1.
DR   RefSeq; WP_010887071.1; NZ_CP015081.1.
DR   AlphaFoldDB; Q9RX89; -.
DR   SMR; Q9RX89; -.
DR   STRING; 243230.DR_0426; -.
DR   MEROPS; C26.965; -.
DR   EnsemblBacteria; AAF10003; AAF10003; DR_0426.
DR   KEGG; dra:DR_0426; -.
DR   PATRIC; fig|243230.17.peg.600; -.
DR   eggNOG; COG0118; Bacteria.
DR   HOGENOM; CLU_071837_2_2_0; -.
DR   InParanoid; Q9RX89; -.
DR   OMA; WVYFVHS; -.
DR   OrthoDB; 1726024at2; -.
DR   UniPathway; UPA00031; UER00010.
DR   Proteomes; UP000002524; Chromosome I.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0004359; F:glutaminase activity; IEA:UniProtKB-EC.
DR   GO; GO:0000107; F:imidazoleglycerol-phosphate synthase activity; IBA:GO_Central.
DR   GO; GO:0016829; F:lyase activity; IEA:UniProtKB-KW.
DR   GO; GO:0006541; P:glutamine metabolic process; IEA:UniProtKB-KW.
DR   GO; GO:0000105; P:histidine biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd01748; GATase1_IGP_Synthase; 1.
DR   Gene3D; 3.40.50.880; -; 1.
DR   HAMAP; MF_00278; HisH; 1.
DR   InterPro; IPR029062; Class_I_gatase-like.
DR   InterPro; IPR017926; GATASE.
DR   InterPro; IPR010139; Imidazole-glycPsynth_HisH.
DR   PANTHER; PTHR42701; PTHR42701; 1.
DR   Pfam; PF00117; GATase; 1.
DR   PIRSF; PIRSF000495; Amidotransf_hisH; 1.
DR   SUPFAM; SSF52317; SSF52317; 1.
DR   TIGRFAMs; TIGR01855; IMP_synth_hisH; 1.
DR   PROSITE; PS51273; GATASE_TYPE_1; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Cytoplasm; Glutamine amidotransferase;
KW   Histidine biosynthesis; Hydrolase; Lyase; Reference proteome.
FT   CHAIN           1..215
FT                   /note="Imidazole glycerol phosphate synthase subunit HisH"
FT                   /id="PRO_0000152371"
FT   DOMAIN          11..215
FT                   /note="Glutamine amidotransferase type-1"
FT   ACT_SITE        89
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000250"
FT   ACT_SITE        193
FT                   /evidence="ECO:0000250"
FT   ACT_SITE        195
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   215 AA;  22611 MW;  876B70BD965E5AFC CRC64;
     MSTTPVRAAP EVLLLDYGAG NVRSAARALE RAGMTVRVTD NAADVPHAPA LVVPGQGHFR
     QVMEAFEHGG FHGPVLDAAR AGVPLLGICV GMQLLFDGSE EAPGVPGLGL IAGQVRKFAP
     APERKVPQMG WNALEARGDS PLLRGLGPDA YAYFVHSYYV PVDVPVTDGA VTDYGVPFWS
     ALSRGNLHAA QFHPEKSGAV GLALLANFRR ELAPA
 
 
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