HIS5_PASMU
ID HIS5_PASMU Reviewed; 198 AA.
AC P57921;
DT 27-APR-2001, integrated into UniProtKB/Swiss-Prot.
DT 27-APR-2001, sequence version 1.
DT 25-MAY-2022, entry version 125.
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=PM1202;
OS Pasteurella multocida (strain Pm70).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales;
OC Pasteurellaceae; Pasteurella.
OX NCBI_TaxID=272843;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Pm70;
RX PubMed=11248100; DOI=10.1073/pnas.051634598;
RA May B.J., Zhang Q., Li L.L., Paustian M.L., Whittam T.S., Kapur V.;
RT "Complete genomic sequence of Pasteurella multocida Pm70.";
RL Proc. Natl. Acad. Sci. U.S.A. 98:3460-3465(2001).
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; AE004439; AAK03286.1; -; Genomic_DNA.
DR RefSeq; WP_010907069.1; NC_002663.1.
DR AlphaFoldDB; P57921; -.
DR SMR; P57921; -.
DR STRING; 747.DR93_764; -.
DR MEROPS; C26.965; -.
DR EnsemblBacteria; AAK03286; AAK03286; PM1202.
DR KEGG; pmu:PM1202; -.
DR PATRIC; fig|272843.6.peg.1213; -.
DR HOGENOM; CLU_071837_0_0_6; -.
DR OMA; WVYFVHS; -.
DR UniPathway; UPA00031; UER00010.
DR Proteomes; UP000000809; Chromosome.
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; IEA:UniProtKB-UniRule.
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..198
FT /note="Imidazole glycerol phosphate synthase subunit HisH"
FT /id="PRO_0000152401"
FT DOMAIN 3..198
FT /note="Glutamine amidotransferase type-1"
FT ACT_SITE 78
FT /note="Nucleophile"
FT /evidence="ECO:0000250"
FT ACT_SITE 178
FT /evidence="ECO:0000250"
FT ACT_SITE 180
FT /evidence="ECO:0000250"
SQ SEQUENCE 198 AA; 21988 MW; AB7BD2C04023C4C0 CRC64;
MQNITIINTR CANLSSVKFA FDRLGYHTEI TDNIEKIQSA DKLILPGVGT AKAAMQNLAD
LGLIEVIQSL TQPVLGICLG MQLMTDYSEE GNLDLLKLMS GKTEKLPDCQ LPLPHMGWNK
VHYAADHPLF AEIAQDSYFY FVHSYGVLPN PHTVATCDYG VPFSAVIQHN NFYGAQFHPE
RSGKAGALFL RNFVENIK
