ID   HIS6_CHLAA              Reviewed;         259 AA.
AC   A9WD80;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   05-FEB-2008, sequence version 1.
DT   03-AUG-2022, entry version 72.
DE   RecName: Full=Imidazole glycerol phosphate synthase subunit HisF {ECO:0000255|HAMAP-Rule:MF_01013};
DE            EC=4.3.2.10 {ECO:0000255|HAMAP-Rule:MF_01013};
DE   AltName: Full=IGP synthase cyclase subunit {ECO:0000255|HAMAP-Rule:MF_01013};
DE   AltName: Full=IGP synthase subunit HisF {ECO:0000255|HAMAP-Rule:MF_01013};
DE   AltName: Full=ImGP synthase subunit HisF {ECO:0000255|HAMAP-Rule:MF_01013};
DE            Short=IGPS subunit HisF {ECO:0000255|HAMAP-Rule:MF_01013};
GN   Name=hisF {ECO:0000255|HAMAP-Rule:MF_01013}; OrderedLocusNames=Caur_1830;
OS   Chloroflexus aurantiacus (strain ATCC 29366 / DSM 635 / J-10-fl).
OC   Bacteria; Chloroflexi; Chloroflexia; Chloroflexales; Chloroflexineae;
OC   Chloroflexaceae; Chloroflexus.
OX   NCBI_TaxID=324602;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 29366 / DSM 635 / J-10-fl;
RX   PubMed=21714912; DOI=10.1186/1471-2164-12-334;
RA   Tang K.H., Barry K., Chertkov O., Dalin E., Han C.S., Hauser L.J.,
RA   Honchak B.M., Karbach L.E., Land M.L., Lapidus A., Larimer F.W.,
RA   Mikhailova N., Pitluck S., Pierson B.K., Blankenship R.E.;
RT   "Complete genome sequence of the filamentous anoxygenic phototrophic
RT   bacterium Chloroflexus aurantiacus.";
RL   BMC Genomics 12:334-334(2011).
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:0000255|HAMAP-Rule:MF_01013}.
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_01013};
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_01013}.
CC   -!- SUBUNIT: Heterodimer of HisH and HisF. {ECO:0000255|HAMAP-
CC       Rule:MF_01013}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01013}.
CC   -!- SIMILARITY: Belongs to the HisA/HisF family. {ECO:0000255|HAMAP-
CC       Rule:MF_01013}.
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DR   EMBL; CP000909; ABY35047.1; -; Genomic_DNA.
DR   RefSeq; WP_012257701.1; NC_010175.1.
DR   RefSeq; YP_001635436.1; NC_010175.1.
DR   AlphaFoldDB; A9WD80; -.
DR   SMR; A9WD80; -.
DR   STRING; 324602.Caur_1830; -.
DR   EnsemblBacteria; ABY35047; ABY35047; Caur_1830.
DR   KEGG; cau:Caur_1830; -.
DR   PATRIC; fig|324602.8.peg.2089; -.
DR   eggNOG; COG0107; Bacteria.
DR   HOGENOM; CLU_048577_4_0_0; -.
DR   InParanoid; A9WD80; -.
DR   OMA; IFHYKET; -.
DR   UniPathway; UPA00031; UER00010.
DR   Proteomes; UP000002008; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
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:0000105; P:histidine biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd04731; HisF; 1.
DR   Gene3D; 3.20.20.70; -; 1.
DR   HAMAP; MF_01013; HisF; 1.
DR   InterPro; IPR013785; Aldolase_TIM.
DR   InterPro; IPR006062; His_biosynth.
DR   InterPro; IPR004651; HisF.
DR   InterPro; IPR011060; RibuloseP-bd_barrel.
DR   Pfam; PF00977; His_biosynth; 1.
DR   SUPFAM; SSF51366; SSF51366; 1.
DR   TIGRFAMs; TIGR00735; hisF; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Cytoplasm; Histidine biosynthesis; Lyase;
KW   Reference proteome.
FT   CHAIN           1..259
FT                   /note="Imidazole glycerol phosphate synthase subunit HisF"
FT                   /id="PRO_1000084053"
FT   ACT_SITE        11
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01013"
FT   ACT_SITE        130
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01013"
SQ   SEQUENCE   259 AA;  27644 MW;  572B9EEDA38C1626 CRC64;
     MLTRRIIPCL DVKAGRVVKG VKFLNHRDAG DPVELAAAYN AAGADELVFY DITASSDERA
     IMVEVVERTA AEVFIPLTVG GGLRSVDDMY RMLRAGADKV SLNTAAVYNP QLIAEGARRF
     GSQCIVLSVD AKRVNAPGEP PRWEVFTHTG ANPRPTGLDA IEWIKRGIDL GAGEICINSM
     DADGARTGYD LELLQAITAI SPVPVIASGG VGSPHDMYRG IVEGGADAVL AASIFHFGDY
     SVADVKRYLA ERGVAVRMI