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Database: UniProt
Entry: S3AXT8_9MICO
LinkDB: S3AXT8_9MICO
Original site: S3AXT8_9MICO 
ID   S3AXT8_9MICO            Unreviewed;       232 AA.
AC   S3AXT8;
DT   18-SEP-2013, integrated into UniProtKB/TrEMBL.
DT   18-SEP-2013, sequence version 1.
DT   24-JAN-2024, entry version 44.
DE   RecName: Full=Imidazole glycerol phosphate synthase subunit HisH {ECO:0000256|HAMAP-Rule:MF_00278};
DE            EC=4.3.2.10 {ECO:0000256|HAMAP-Rule:MF_00278};
DE   AltName: Full=IGP synthase glutaminase subunit {ECO:0000256|HAMAP-Rule:MF_00278};
DE            EC=3.5.1.2 {ECO:0000256|HAMAP-Rule:MF_00278};
DE   AltName: Full=IGP synthase subunit HisH {ECO:0000256|HAMAP-Rule:MF_00278};
DE   AltName: Full=ImGP synthase subunit HisH {ECO:0000256|HAMAP-Rule:MF_00278};
DE            Short=IGPS subunit HisH {ECO:0000256|HAMAP-Rule:MF_00278};
GN   Name=hisH {ECO:0000256|HAMAP-Rule:MF_00278};
GN   ORFNames=HMPREF1529_00038 {ECO:0000313|EMBL:EPD86862.1};
OS   Microbacterium sp. oral taxon 186 str. F0373.
OC   Bacteria; Actinomycetota; Actinomycetes; Micrococcales; Microbacteriaceae;
OC   Microbacterium.
OX   NCBI_TaxID=1203549 {ECO:0000313|EMBL:EPD86862.1, ECO:0000313|Proteomes:UP000014414};
RN   [1] {ECO:0000313|EMBL:EPD86862.1, ECO:0000313|Proteomes:UP000014414}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=F0373 {ECO:0000313|EMBL:EPD86862.1,
RC   ECO:0000313|Proteomes:UP000014414};
RG   The Broad Institute Genomics Platform;
RA   Earl A., Ward D., Feldgarden M., Gevers D., Kirega A., Dewhirst F.D.,
RA   Izard J., Walker B., Young S., Zeng Q., Gargeya S., Fitzgerald M., Haas B.,
RA   Abouelleil A., Allen A.W., Alvarado L., Arachchi H.M., Berlin A.M.,
RA   Chapman S.B., Gainer-Dewar J., Goldberg J., Griggs A., Gujja S., Hansen M.,
RA   Howarth C., Imamovic A., Ireland A., Larimer J., McCowan C., Murphy C.,
RA   Pearson M., Poon T.W., Priest M., Roberts A., Saif S., Shea T., Sisk P.,
RA   Sykes S., Wortman J., Nusbaum C., Birren B.;
RT   "The Genome Sequence of Microbacterium sp. oral taxon 186 F0373.";
RL   Submitted (MAY-2013) to the EMBL/GenBank/DDBJ databases.
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:0000256|ARBA:ARBA00025299, ECO:0000256|HAMAP-
CC       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;
CC         Evidence={ECO:0000256|ARBA:ARBA00000619, ECO:0000256|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:0000256|ARBA:ARBA00001062, ECO:0000256|HAMAP-
CC         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:0000256|ARBA:ARBA00005091, ECO:0000256|HAMAP-Rule:MF_00278}.
CC   -!- SUBUNIT: Heterodimer of HisH and HisF. {ECO:0000256|ARBA:ARBA00011152,
CC       ECO:0000256|HAMAP-Rule:MF_00278}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00278}.
CC   -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC       whole genome shotgun (WGS) entry which is preliminary data.
CC       {ECO:0000313|EMBL:EPD86862.1}.
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DR   EMBL; ATCC01000001; EPD86862.1; -; Genomic_DNA.
DR   RefSeq; WP_005048896.1; NZ_KE150457.1.
DR   AlphaFoldDB; S3AXT8; -.
DR   PATRIC; fig|1203549.3.peg.36; -.
DR   HOGENOM; CLU_071837_1_0_11; -.
DR   OrthoDB; 9807137at2; -.
DR   UniPathway; UPA00031; UER00010.
DR   Proteomes; UP000014414; Unassembled WGS sequence.
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-UniRule.
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   NCBIfam; TIGR01855; IMP_synth_hisH; 1.
DR   PANTHER; PTHR42701; IMIDAZOLE GLYCEROL PHOSPHATE SYNTHASE SUBUNIT HISH; 1.
DR   PANTHER; PTHR42701:SF1; IMIDAZOLE GLYCEROL PHOSPHATE SYNTHASE SUBUNIT HISH; 1.
DR   Pfam; PF00117; GATase; 1.
DR   PIRSF; PIRSF000495; Amidotransf_hisH; 1.
DR   SUPFAM; SSF52317; Class I glutamine amidotransferase-like; 1.
DR   PROSITE; PS51273; GATASE_TYPE_1; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605, ECO:0000256|HAMAP-
KW   Rule:MF_00278}; Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00278};
KW   Glutamine amidotransferase {ECO:0000256|HAMAP-Rule:MF_00278,
KW   ECO:0000256|PROSITE-ProRule:PRU00605};
KW   Histidine biosynthesis {ECO:0000256|ARBA:ARBA00023102, ECO:0000256|HAMAP-
KW   Rule:MF_00278};
KW   Hydrolase {ECO:0000256|ARBA:ARBA00022801, ECO:0000256|HAMAP-Rule:MF_00278};
KW   Lyase {ECO:0000256|ARBA:ARBA00023239, ECO:0000256|HAMAP-Rule:MF_00278}.
FT   DOMAIN          22..219
FT                   /note="Glutamine amidotransferase"
FT                   /evidence="ECO:0000259|Pfam:PF00117"
FT   ACT_SITE        97
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00278,
FT                   ECO:0000256|PIRSR:PIRSR000495-1"
FT   ACT_SITE        205
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00278,
FT                   ECO:0000256|PIRSR:PIRSR000495-1"
FT   ACT_SITE        207
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00278,
FT                   ECO:0000256|PIRSR:PIRSR000495-1"
SQ   SEQUENCE   232 AA;  24996 MW;  DBDE83F279D2A64F CRC64;
     MTDATAGLEA GTRIEERPLV AVLDYGSGNV HSAVKALVAA GADARLTADR GLIHDAAGLV
     VPGVGAFRAV MESLRATRGD EIIERRLAGG LPVLGICVGM QVMFEHGVER GDDTEGLGEW
     PGAVTELDAP VLPHMGWNTV RVGEGSTLFR GLEHERFYFV HSYAAQHWSL EVTRPFRQPA
     LTWCDYGTPF LAAVENGPLS ATQFHPEKSG EAGIRLLANW ISSLPQDLTR TR
//
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