HIS5_CUTAK
ID HIS5_CUTAK Reviewed; 205 AA.
AC Q6A8L2;
DT 04-APR-2006, integrated into UniProtKB/Swiss-Prot.
DT 04-APR-2006, sequence version 2.
DT 25-MAY-2022, entry version 119.
DE RecName: Full=Imidazole glycerol phosphate synthase subunit HisH {ECO:0000255|HAMAP-Rule:MF_00278};
DE EC=4.3.2.10 {ECO:0000255|HAMAP-Rule:MF_00278};
DE AltName: Full=IGP synthase glutaminase subunit {ECO:0000255|HAMAP-Rule:MF_00278};
DE EC=3.5.1.2 {ECO:0000255|HAMAP-Rule:MF_00278};
DE AltName: Full=IGP synthase subunit HisH {ECO:0000255|HAMAP-Rule:MF_00278};
DE AltName: Full=ImGP synthase subunit HisH {ECO:0000255|HAMAP-Rule:MF_00278};
DE Short=IGPS subunit HisH {ECO:0000255|HAMAP-Rule:MF_00278};
GN Name=hisH {ECO:0000255|HAMAP-Rule:MF_00278}; OrderedLocusNames=PPA1155;
OS Cutibacterium acnes (strain DSM 16379 / KPA171202) (Propionibacterium
OS acnes).
OC Bacteria; Actinobacteria; Propionibacteriales; Propionibacteriaceae;
OC Cutibacterium.
OX NCBI_TaxID=267747;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 16379 / KPA171202;
RX PubMed=15286373; DOI=10.1126/science.1100330;
RA Brueggemann H., Henne A., Hoster F., Liesegang H., Wiezer A.,
RA Strittmatter A., Hujer S., Duerre P., Gottschalk G.;
RT "The complete genome sequence of Propionibacterium acnes, a commensal of
RT human skin.";
RL Science 305:671-673(2004).
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:0000255|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; Evidence={ECO:0000255|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:0000255|HAMAP-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:0000255|HAMAP-Rule:MF_00278}.
CC -!- SUBUNIT: Heterodimer of HisH and HisF. {ECO:0000255|HAMAP-
CC Rule:MF_00278}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00278}.
CC -!- SEQUENCE CAUTION:
CC Sequence=AAT82904.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR EMBL; AE017283; AAT82904.1; ALT_INIT; Genomic_DNA.
DR RefSeq; WP_002513558.1; NZ_CP025935.1.
DR AlphaFoldDB; Q6A8L2; -.
DR SMR; Q6A8L2; -.
DR STRING; 267747.PPA1155; -.
DR EnsemblBacteria; AAT82904; AAT82904; PPA1155.
DR KEGG; pac:PPA1155; -.
DR eggNOG; COG0118; Bacteria.
DR HOGENOM; CLU_071837_1_0_11; -.
DR OMA; WVYFVHS; -.
DR UniPathway; UPA00031; UER00010.
DR Proteomes; UP000000603; 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-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.
FT CHAIN 1..205
FT /note="Imidazole glycerol phosphate synthase subunit HisH"
FT /id="PRO_0000231747"
FT DOMAIN 6..205
FT /note="Glutamine amidotransferase type-1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00278"
FT ACT_SITE 84
FT /note="Nucleophile"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00278"
FT ACT_SITE 185
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00278"
FT ACT_SITE 187
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00278"
SQ SEQUENCE 205 AA; 22013 MW; 8A3D8F9AD1B803B5 CRC64;
MSDPVRVGII DHGSGNLHSA RRALRQVGAE VIVSNDPSAL LDTDALVLPG VGALAVCMTG
LRAMGGARLV RQWVDEGRPL LGICVGHQML FERGRERDVD VKCLGVLPGV VEELPAERLP
HMGWNTVTPA TDSALFQGVQ ERFYFVHSYG VVVTGPHDHF TTATHQGATF VAAAEYGPVT
STQFHPEKSG IAGLALLTRW LNQLS
