HIS5_MANSM
ID HIS5_MANSM Reviewed; 194 AA.
AC Q65RB8;
DT 15-FEB-2005, integrated into UniProtKB/Swiss-Prot.
DT 25-OCT-2004, sequence version 1.
DT 25-MAY-2022, entry version 100.
DE RecName: Full=Imidazole glycerol phosphate synthase subunit HisH {ECO:0000255|HAMAP-Rule:MF_00278};
DE EC=4.3.2.10 {ECO:0000255|HAMAP-Rule:MF_00278};
DE AltName: Full=IGP synthase glutaminase subunit {ECO:0000255|HAMAP-Rule:MF_00278};
DE EC=3.5.1.2 {ECO:0000255|HAMAP-Rule:MF_00278};
DE AltName: Full=IGP synthase subunit HisH {ECO:0000255|HAMAP-Rule:MF_00278};
DE AltName: Full=ImGP synthase subunit HisH {ECO:0000255|HAMAP-Rule:MF_00278};
DE Short=IGPS subunit HisH {ECO:0000255|HAMAP-Rule:MF_00278};
GN Name=hisH {ECO:0000255|HAMAP-Rule:MF_00278}; OrderedLocusNames=MS1885;
OS Mannheimia succiniciproducens (strain MBEL55E).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales;
OC Pasteurellaceae; Basfia.
OX NCBI_TaxID=221988;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MBEL55E;
RX PubMed=15378067; DOI=10.1038/nbt1010;
RA Hong S.H., Kim J.S., Lee S.Y., In Y.H., Choi S.S., Rih J.-K., Kim C.H.,
RA Jeong H., Hur C.G., Kim J.J.;
RT "The genome sequence of the capnophilic rumen bacterium Mannheimia
RT succiniciproducens.";
RL Nat. Biotechnol. 22:1275-1281(2004).
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. {ECO:0000255|HAMAP-Rule:MF_00278}.
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; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_00278};
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 Evidence={ECO:0000255|HAMAP-Rule:MF_00278};
CC -!- PATHWAY: Amino-acid biosynthesis; L-histidine biosynthesis; L-histidine
CC from 5-phospho-alpha-D-ribose 1-diphosphate: step 5/9.
CC {ECO:0000255|HAMAP-Rule:MF_00278}.
CC -!- SUBUNIT: Heterodimer of HisH and HisF. {ECO:0000255|HAMAP-
CC Rule:MF_00278}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00278}.
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DR EMBL; AE016827; AAU38492.1; -; Genomic_DNA.
DR RefSeq; WP_011201045.1; NC_006300.1.
DR AlphaFoldDB; Q65RB8; -.
DR SMR; Q65RB8; -.
DR STRING; 221988.MS1885; -.
DR EnsemblBacteria; AAU38492; AAU38492; MS1885.
DR KEGG; msu:MS1885; -.
DR eggNOG; COG0118; Bacteria.
DR HOGENOM; CLU_071837_0_0_6; -.
DR OMA; WVYFVHS; -.
DR OrthoDB; 1726024at2; -.
DR UniPathway; UPA00031; UER00010.
DR Proteomes; UP000000607; 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.
FT CHAIN 1..194
FT /note="Imidazole glycerol phosphate synthase subunit HisH"
FT /id="PRO_0000152392"
FT DOMAIN 1..194
FT /note="Glutamine amidotransferase type-1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00278"
FT ACT_SITE 75
FT /note="Nucleophile"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00278"
FT ACT_SITE 175
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00278"
FT ACT_SITE 177
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00278"
SQ SEQUENCE 194 AA; 21344 MW; EAB57E5C44336825 CRC64;
MIIIDTGCAN LSSVKFAFDR LNIKAEISRD IATIKSADKL LLPGVGTAMA AMKILQDRNL
IETIQNATQP MLGICLGMQL MTEYSSEGNV PTLSLMSGHT DLIPNTGLPL PHMGWNKVRY
EQDHPLFAGI EQDSHFYFVH SYAVLPNEHT IATSDYGVPF SAALGCKNFY GVQFHPERSG
KNGAQLLKNF VENL
