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PURO_HALS3
ID   PURO_HALS3              Reviewed;         194 AA.
AC   B0R7Q4;
DT   02-SEP-2008, integrated into UniProtKB/Swiss-Prot.
DT   08-APR-2008, sequence version 1.
DT   25-MAY-2022, entry version 70.
DE   RecName: Full=IMP cyclohydrolase {ECO:0000255|HAMAP-Rule:MF_00705};
DE            EC=3.5.4.10 {ECO:0000255|HAMAP-Rule:MF_00705};
DE   AltName: Full=IMP synthase {ECO:0000255|HAMAP-Rule:MF_00705};
DE   AltName: Full=Inosinicase {ECO:0000255|HAMAP-Rule:MF_00705};
GN   Name=purO {ECO:0000255|HAMAP-Rule:MF_00705}; OrderedLocusNames=OE_4329F;
OS   Halobacterium salinarum (strain ATCC 29341 / DSM 671 / R1).
OC   Archaea; Euryarchaeota; Stenosarchaea group; Halobacteria; Halobacteriales;
OC   Halobacteriaceae; Halobacterium.
OX   NCBI_TaxID=478009;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 29341 / DSM 671 / R1;
RX   PubMed=18313895; DOI=10.1016/j.ygeno.2008.01.001;
RA   Pfeiffer F., Schuster S.C., Broicher A., Falb M., Palm P., Rodewald K.,
RA   Ruepp A., Soppa J., Tittor J., Oesterhelt D.;
RT   "Evolution in the laboratory: the genome of Halobacterium salinarum strain
RT   R1 compared to that of strain NRC-1.";
RL   Genomics 91:335-346(2008).
CC   -!- FUNCTION: Catalyzes the cyclization of 5-formylamidoimidazole-4-
CC       carboxamide ribonucleotide to IMP. {ECO:0000255|HAMAP-Rule:MF_00705}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + IMP = 5-formamido-1-(5-phospho-D-ribosyl)imidazole-4-
CC         carboxamide; Xref=Rhea:RHEA:18445, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:58053, ChEBI:CHEBI:58467; EC=3.5.4.10;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00705};
CC   -!- PATHWAY: Purine metabolism; IMP biosynthesis via de novo pathway; IMP
CC       from 5-formamido-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide: step
CC       1/1. {ECO:0000255|HAMAP-Rule:MF_00705}.
CC   -!- SIMILARITY: Belongs to the archaeal IMP cyclohydrolase family.
CC       {ECO:0000255|HAMAP-Rule:MF_00705}.
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DR   EMBL; AM774415; CAP14773.1; -; Genomic_DNA.
DR   RefSeq; WP_010903769.1; NC_010364.1.
DR   AlphaFoldDB; B0R7Q4; -.
DR   SMR; B0R7Q4; -.
DR   EnsemblBacteria; CAP14773; CAP14773; OE_4329F.
DR   GeneID; 5954394; -.
DR   KEGG; hsl:OE_4329F; -.
DR   HOGENOM; CLU_1352116_0_0_2; -.
DR   OMA; HVDPIAE; -.
DR   PhylomeDB; B0R7Q4; -.
DR   UniPathway; UPA00074; UER00135.
DR   Proteomes; UP000001321; Chromosome.
DR   GO; GO:0003937; F:IMP cyclohydrolase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006189; P:'de novo' IMP biosynthetic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.60.20.20; -; 1.
DR   HAMAP; MF_00705; IMP_cyclohydrol; 1.
DR   InterPro; IPR010191; IMP_cyclohydrolase.
DR   InterPro; IPR020600; IMP_cyclohydrolase-like.
DR   InterPro; IPR036795; IMP_cyclohydrolase-like_sf.
DR   Pfam; PF07826; IMP_cyclohyd; 1.
DR   PIRSF; PIRSF004866; IMP_cclhdr_arch; 1.
DR   SUPFAM; SSF75569; SSF75569; 1.
DR   TIGRFAMs; TIGR01922; purO_arch; 1.
PE   3: Inferred from homology;
KW   Hydrolase; Purine biosynthesis.
FT   CHAIN           1..194
FT                   /note="IMP cyclohydrolase"
FT                   /id="PRO_0000349158"
SQ   SEQUENCE   194 AA;  20480 MW;  EDFD07EC29BBB328 CRC64;
     MYIGRFVVVG PSVAAYRVSS RSFPNRKLIE RPAGLTVVPT ADAEETTNPY VSYNCVRTAG
     GHAVVGNGSH VDPITEKVER GYPPRDALTE ALLAMDYEKD DYDTPRIAGV LAPDGTAYVG
     IVRADAVLVR AVEEPTLVAT YEKDAPEAIG FDAATAADAA REAYSAAFEH AVCAAGVSRR
     GVGDGYDTAV VNDP
 
 
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