HIS3_RHILO
ID HIS3_RHILO Reviewed; 153 AA.
AC Q98LQ5;
DT 27-MAY-2002, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-2001, sequence version 1.
DT 03-AUG-2022, entry version 101.
DE RecName: Full=Phosphoribosyl-AMP cyclohydrolase {ECO:0000255|HAMAP-Rule:MF_01021};
DE Short=PRA-CH {ECO:0000255|HAMAP-Rule:MF_01021};
DE EC=3.5.4.19 {ECO:0000255|HAMAP-Rule:MF_01021};
GN Name=hisI {ECO:0000255|HAMAP-Rule:MF_01021}; OrderedLocusNames=mlr0923;
OS Mesorhizobium japonicum (strain LMG 29417 / CECT 9101 / MAFF 303099)
OS (Mesorhizobium loti (strain MAFF 303099)).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC Phyllobacteriaceae; Mesorhizobium.
OX NCBI_TaxID=266835;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=LMG 29417 / CECT 9101 / MAFF 303099;
RX PubMed=11214968; DOI=10.1093/dnares/7.6.331;
RA Kaneko T., Nakamura Y., Sato S., Asamizu E., Kato T., Sasamoto S.,
RA Watanabe A., Idesawa K., Ishikawa A., Kawashima K., Kimura T., Kishida Y.,
RA Kiyokawa C., Kohara M., Matsumoto M., Matsuno A., Mochizuki Y.,
RA Nakayama S., Nakazaki N., Shimpo S., Sugimoto M., Takeuchi C., Yamada M.,
RA Tabata S.;
RT "Complete genome structure of the nitrogen-fixing symbiotic bacterium
RT Mesorhizobium loti.";
RL DNA Res. 7:331-338(2000).
CC -!- FUNCTION: Catalyzes the hydrolysis of the adenine ring of
CC phosphoribosyl-AMP. {ECO:0000255|HAMAP-Rule:MF_01021}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=1-(5-phospho-beta-D-ribosyl)-5'-AMP + H2O = 1-(5-phospho-beta-
CC D-ribosyl)-5-[(5-phospho-beta-D-
CC ribosylamino)methylideneamino]imidazole-4-carboxamide;
CC Xref=Rhea:RHEA:20049, ChEBI:CHEBI:15377, ChEBI:CHEBI:58435,
CC ChEBI:CHEBI:59457; EC=3.5.4.19; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_01021};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01021};
CC Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000255|HAMAP-Rule:MF_01021};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01021};
CC Note=Binds 1 zinc ion per subunit. {ECO:0000255|HAMAP-Rule:MF_01021};
CC -!- PATHWAY: Amino-acid biosynthesis; L-histidine biosynthesis; L-histidine
CC from 5-phospho-alpha-D-ribose 1-diphosphate: step 3/9.
CC {ECO:0000255|HAMAP-Rule:MF_01021}.
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01021}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01021}.
CC -!- SIMILARITY: Belongs to the PRA-CH family. {ECO:0000255|HAMAP-
CC Rule:MF_01021}.
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DR EMBL; BA000012; BAB48408.1; -; Genomic_DNA.
DR RefSeq; WP_010909762.1; NC_002678.2.
DR AlphaFoldDB; Q98LQ5; -.
DR SMR; Q98LQ5; -.
DR STRING; 266835.14021797; -.
DR EnsemblBacteria; BAB48408; BAB48408; BAB48408.
DR GeneID; 66683768; -.
DR KEGG; mlo:mlr0923; -.
DR eggNOG; COG0139; Bacteria.
DR HOGENOM; CLU_048577_5_0_5; -.
DR OMA; MLLMVAH; -.
DR OrthoDB; 1842189at2; -.
DR UniPathway; UPA00031; UER00008.
DR Proteomes; UP000000552; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0004635; F:phosphoribosyl-AMP cyclohydrolase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0000105; P:histidine biosynthetic process; IEA:UniProtKB-UniRule.
DR Gene3D; 3.10.20.810; -; 1.
DR HAMAP; MF_01021; HisI; 1.
DR InterPro; IPR026660; PRA-CH.
DR InterPro; IPR002496; PRib_AMP_CycHydrolase_dom.
DR InterPro; IPR038019; PRib_AMP_CycHydrolase_sf.
DR Pfam; PF01502; PRA-CH; 1.
DR SUPFAM; SSF141734; SSF141734; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis; Cytoplasm; Histidine biosynthesis; Hydrolase;
KW Magnesium; Metal-binding; Zinc.
FT CHAIN 1..153
FT /note="Phosphoribosyl-AMP cyclohydrolase"
FT /id="PRO_0000136495"
FT BINDING 93
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01021"
FT BINDING 94
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_note="ligand shared between dimeric partners"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01021"
FT BINDING 95
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01021"
FT BINDING 97
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01021"
FT BINDING 112
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_note="ligand shared between dimeric partners"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01021"
FT BINDING 119
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_note="ligand shared between dimeric partners"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01021"
SQ SEQUENCE 153 AA; 16821 MW; 4A44E3188B90F239 CRC64;
MSALGFPKTP SDKKALEEGA VFSPRFDPAG LVTVVVTDAE DGMLLMVAHM NAQALALTLE
TGIAHYWSRS RNALWKKGET SGNFQHVVEM RTDCDQDALW LRVKVLGHDA TCHTGRRSCF
YRTVGLVDGK GTLVDDGSKP LFDAEFTYRK PSS
