ID A0A1I4XY43_9NEIS Unreviewed; 255 AA.
AC A0A1I4XY43;
DT 05-DEC-2018, integrated into UniProtKB/TrEMBL.
DT 05-DEC-2018, sequence version 1.
DT 27-MAR-2024, entry version 21.
DE RecName: Full=imidazole glycerol-phosphate synthase {ECO:0000256|ARBA:ARBA00012809};
DE EC=4.3.2.10 {ECO:0000256|ARBA:ARBA00012809};
DE AltName: Full=IGP synthase cyclase subunit {ECO:0000256|ARBA:ARBA00030264};
GN ORFNames=SAMN05660284_01150 {ECO:0000313|EMBL:SFN30149.1};
OS Formivibrio citricus.
OC Bacteria; Pseudomonadota; Betaproteobacteria; Neisseriales;
OC Chitinibacteraceae; Formivibrio.
OX NCBI_TaxID=83765 {ECO:0000313|EMBL:SFN30149.1, ECO:0000313|Proteomes:UP000242869};
RN [1] {ECO:0000313|Proteomes:UP000242869}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 6150 {ECO:0000313|Proteomes:UP000242869};
RA Varghese N., Submissions S.;
RL Submitted (OCT-2016) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: IGPS catalyzes the conversion of PRFAR and glutamine to IGP,
CC AICAR and glutamate. The HisF subunit catalyzes the cyclization
CC activity that produces IGP and AICAR from PRFAR using the ammonia
CC provided by the HisH subunit. {ECO:0000256|ARBA:ARBA00025475}.
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};
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}.
CC -!- SUBUNIT: Heterodimer of HisH and HisF. {ECO:0000256|ARBA:ARBA00011152}.
CC -!- SIMILARITY: Belongs to the HisA/HisF family.
CC {ECO:0000256|ARBA:ARBA00009667, ECO:0000256|RuleBase:RU003657}.
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DR EMBL; FOVE01000006; SFN30149.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1I4XY43; -.
DR STRING; 83765.SAMN05660284_01150; -.
DR OrthoDB; 9781903at2; -.
DR UniPathway; UPA00031; UER00010.
DR Proteomes; UP000242869; Unassembled WGS sequence.
DR GO; GO:0000107; F:imidazoleglycerol-phosphate synthase activity; IEA:InterPro.
DR GO; GO:0016829; F:lyase activity; IEA:UniProtKB-KW.
DR GO; GO:0000105; P:histidine biosynthetic process; IEA:UniProtKB-UniPathway.
DR CDD; cd04731; HisF; 1.
DR Gene3D; 3.20.20.70; Aldolase class I; 1.
DR InterPro; IPR013785; Aldolase_TIM.
DR InterPro; IPR006062; His_biosynth.
DR InterPro; IPR004651; HisF.
DR InterPro; IPR011060; RibuloseP-bd_barrel.
DR PANTHER; PTHR21235:SF2; IMIDAZOLE GLYCEROL PHOSPHATE SYNTHASE HISHF; 1.
DR PANTHER; PTHR21235; IMIDAZOLE GLYCEROL PHOSPHATE SYNTHASE SUBUNIT HISF/H IGP SYNTHASE SUBUNIT HISF/H; 1.
DR Pfam; PF00977; His_biosynth; 1.
DR SUPFAM; SSF51366; Ribulose-phoshate binding barrel; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605,
KW ECO:0000256|RuleBase:RU003657};
KW Histidine biosynthesis {ECO:0000256|ARBA:ARBA00023102,
KW ECO:0000256|RuleBase:RU003657};
KW Reference proteome {ECO:0000313|Proteomes:UP000242869}.
SQ SEQUENCE 255 AA; 27318 MW; 51A5F5993CF31657 CRC64;
MNKNIRLIAR LDIKGPNLIK GIHLEGLRVI GSPYEHALRY YQQGADELIY MDCVASLYGR
NHLGDIIREA ARDIFVPLTV GGGIRSVDDA TQILRAGADK VAINTAAVAN PGLISEISRQ
FGSQCMVLSV EAKQVGEGKW QVFTDNGREC TGLDVVEWVQ KGVEMGAGEI LLTSIDREGT
RKGFDIALLK AVTSAISVPV IASGGMGEAG EVVDAVREGG VDAVAMADIL HYKRAQIGDV
RKIAKSAGLK VRDYA
//
