HIS5_SALTY
ID HIS5_SALTY Reviewed; 196 AA.
AC P0A1R4; P10376;
DT 15-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT 15-MAR-2005, sequence version 1.
DT 25-MAY-2022, entry version 105.
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=STM2075;
OS Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Salmonella.
OX NCBI_TaxID=99287;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=LT2;
RX PubMed=3062174; DOI=10.1016/0022-2836(88)90194-5;
RA Carlomagno M.S., Chiariotti L., Alifano P., Nappo A.G., Bruni C.B.;
RT "Structure and function of the Salmonella typhimurium and Escherichia coli
RT K-12 histidine operons.";
RL J. Mol. Biol. 203:585-606(1988).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=LT2 / SGSC1412 / ATCC 700720;
RX PubMed=11677609; DOI=10.1038/35101614;
RA McClelland M., Sanderson K.E., Spieth J., Clifton S.W., Latreille P.,
RA Courtney L., Porwollik S., Ali J., Dante M., Du F., Hou S., Layman D.,
RA Leonard S., Nguyen C., Scott K., Holmes A., Grewal N., Mulvaney E.,
RA Ryan E., Sun H., Florea L., Miller W., Stoneking T., Nhan M., Waterston R.,
RA Wilson R.K.;
RT "Complete genome sequence of Salmonella enterica serovar Typhimurium LT2.";
RL Nature 413:852-856(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}.
CC -!- SEQUENCE CAUTION:
CC Sequence=AAL20979.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR EMBL; X13464; CAA31826.1; -; Genomic_DNA.
DR EMBL; AE006468; AAL20979.1; ALT_INIT; Genomic_DNA.
DR PIR; JS0160; XQEBHT.
DR RefSeq; NP_461020.3; NC_003197.2.
DR AlphaFoldDB; P0A1R4; -.
DR SMR; P0A1R4; -.
DR STRING; 99287.STM2075; -.
DR MEROPS; C26.965; -.
DR PaxDb; P0A1R4; -.
DR EnsemblBacteria; AAL20979; AAL20979; STM2075.
DR GeneID; 1253596; -.
DR KEGG; stm:STM2075; -.
DR PATRIC; fig|99287.12.peg.2197; -.
DR HOGENOM; CLU_071837_0_0_6; -.
DR OMA; WVYFVHS; -.
DR PhylomeDB; P0A1R4; -.
DR UniPathway; UPA00031; UER00010.
DR Proteomes; UP000001014; 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; 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..196
FT /note="Imidazole glycerol phosphate synthase subunit HisH"
FT /id="PRO_0000152419"
FT DOMAIN 2..196
FT /note="Glutamine amidotransferase type-1"
FT ACT_SITE 77
FT /note="Nucleophile"
FT /evidence="ECO:0000250"
FT ACT_SITE 178
FT /evidence="ECO:0000250"
FT ACT_SITE 180
FT /evidence="ECO:0000250"
FT CONFLICT 9
FT /note="Missing (in Ref. 1; CAA31826)"
FT /evidence="ECO:0000305"
FT CONFLICT 20..30
FT /note="VARHGYTPVVS -> GAPRLHPGGQ (in Ref. 1; CAA31826)"
FT /evidence="ECO:0000305"
FT CONFLICT 57
FT /note="L -> V (in Ref. 1; CAA31826)"
FT /evidence="ECO:0000305"
FT CONFLICT 125
FT /note="A -> R (in Ref. 1; CAA31826)"
FT /evidence="ECO:0000305"
SQ SEQUENCE 196 AA; 21704 MW; 0F870A5696A71E85 CRC64;
MNVVILDTGC ANLSSVKSAV ARHGYTPVVS REAEIVLRAD KLFLPGVGTA QAAMDQLRER
ELIDLIKACT QPVLGICLGM QLLGRRSEET RGVDLLNIIE QDVPKMTDFG LPLPHMGWNR
VYPQAGNRLF QGIEDGAYFY FVHSYAMPVN PWTIAQCNYG EPFTAAVQKD NFFGVQFHPE
RSGAAGAQLL KNFLEM
