ID W0RHD2_9BACT Unreviewed; 223 AA.
AC W0RHD2;
DT 19-MAR-2014, integrated into UniProtKB/TrEMBL.
DT 19-MAR-2014, sequence version 1.
DT 24-JAN-2024, entry version 47.
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=J421_1271 {ECO:0000313|EMBL:AHG88808.1};
OS Gemmatirosa kalamazoonensis.
OC Bacteria; Gemmatimonadota; Gemmatimonadetes; Gemmatimonadales;
OC Gemmatimonadaceae; Gemmatirosa.
OX NCBI_TaxID=861299 {ECO:0000313|EMBL:AHG88808.1, ECO:0000313|Proteomes:UP000019151};
RN [1] {ECO:0000313|EMBL:AHG88808.1, ECO:0000313|Proteomes:UP000019151}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=KBS708 {ECO:0000313|EMBL:AHG88808.1,
RC ECO:0000313|Proteomes:UP000019151};
RX PubMed=24699952;
RA Debruyn J.M., Radosevich M., Wommack K.E., Polson S.W., Hauser L.J.,
RA Fawaz M.N., Korlach J., Tsai Y.C.;
RT "Genome Sequence and Methylome of Soil Bacterium Gemmatirosa
RT kalamazoonensis KBS708T, a Member of the Rarely Cultivated Gemmatimonadetes
RT Phylum.";
RL Genome Announc. 2:e00226-14(2014).
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|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;
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}.
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DR EMBL; CP007128; AHG88808.1; -; Genomic_DNA.
DR AlphaFoldDB; W0RHD2; -.
DR STRING; 861299.J421_1271; -.
DR KEGG; gba:J421_1271; -.
DR PATRIC; fig|861299.3.peg.1290; -.
DR eggNOG; COG0118; Bacteria.
DR HOGENOM; CLU_071837_2_2_0; -.
DR InParanoid; W0RHD2; -.
DR OrthoDB; 9807749at2; -.
DR UniPathway; UPA00031; UER00010.
DR Proteomes; UP000019151; 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-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};
KW Reference proteome {ECO:0000313|Proteomes:UP000019151}.
FT DOMAIN 7..188
FT /note="Glutamine amidotransferase"
FT /evidence="ECO:0000259|Pfam:PF00117"
FT REGION 202..223
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 203..223
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 81
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00278,
FT ECO:0000256|PIRSR:PIRSR000495-1"
FT ACT_SITE 180
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00278,
FT ECO:0000256|PIRSR:PIRSR000495-1"
FT ACT_SITE 182
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00278,
FT ECO:0000256|PIRSR:PIRSR000495-1"
SQ SEQUENCE 223 AA; 23112 MW; FDFBEF2C273418DC CRC64;
MTTRVTLFDY GAGNLHSLAK ALEAAGAEVR VETDAARAVE NTDALILPGV GAFQAAAQRL
APGRDAVRDA LGAGLPALGI CLGMQLLFDA SDEGPGAGLG VIPGRVTRLD AARVPQIGWN
AIDDARDPLF AASGLGVAYY ANSFVCRPDD DAPVTAWSEH EGDRFPAAVR QGNVVGVQFH
PEKSSAPGLA FVKAFVESVR DSGLGTRDSS SRSSPESRVP SPD
//
