ID A0A4U0QJE9_9RHOB Unreviewed; 118 AA. AC A0A4U0QJE9; DT 31-JUL-2019, integrated into UniProtKB/TrEMBL. DT 31-JUL-2019, sequence version 1. DT 27-NOV-2024, entry version 16. DE RecName: Full=Phosphoribosyl-AMP cyclohydrolase {ECO:0000256|HAMAP-Rule:MF_01021}; DE Short=PRA-CH {ECO:0000256|HAMAP-Rule:MF_01021}; DE EC=3.5.4.19 {ECO:0000256|HAMAP-Rule:MF_01021}; GN Name=hisI {ECO:0000256|HAMAP-Rule:MF_01021, GN ECO:0000313|EMBL:TJZ81835.1}; GN ORFNames=FA740_16165 {ECO:0000313|EMBL:TJZ81835.1}; OS Paracoccus hibiscisoli. OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodobacterales; OC Paracoccaceae; Paracoccus. OX NCBI_TaxID=2023261 {ECO:0000313|EMBL:TJZ81835.1, ECO:0000313|Proteomes:UP000306223}; RN [1] {ECO:0000313|EMBL:TJZ81835.1, ECO:0000313|Proteomes:UP000306223} RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=CCTCC AB2016182 {ECO:0000313|EMBL:TJZ81835.1, RC ECO:0000313|Proteomes:UP000306223}; RA Li J.; RL Submitted (APR-2019) to the EMBL/GenBank/DDBJ databases. CC -!- FUNCTION: Catalyzes the hydrolysis of the adenine ring of CC phosphoribosyl-AMP. {ECO:0000256|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; CC Evidence={ECO:0000256|ARBA:ARBA00000024, ECO:0000256|HAMAP- CC Rule:MF_01021}; CC -!- COFACTOR: CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420; CC Evidence={ECO:0000256|HAMAP-Rule:MF_01021}; CC Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000256|HAMAP-Rule:MF_01021}; CC -!- COFACTOR: CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105; CC Evidence={ECO:0000256|HAMAP-Rule:MF_01021}; CC Note=Binds 1 zinc ion per subunit. {ECO:0000256|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:0000256|ARBA:ARBA00005169, ECO:0000256|HAMAP-Rule:MF_01021}. CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_01021}. CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01021}. CC -!- SIMILARITY: Belongs to the PRA-CH family. {ECO:0000256|HAMAP- CC Rule:MF_01021}. CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ CC whole genome shotgun (WGS) entry which is preliminary data. CC {ECO:0000313|EMBL:TJZ81835.1}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; SUNH01000027; TJZ81835.1; -; Genomic_DNA. DR AlphaFoldDB; A0A4U0QJE9; -. DR OrthoDB; 9795769at2; -. DR UniPathway; UPA00031; UER00008. DR Proteomes; UP000306223; Unassembled WGS sequence. 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:L-histidine biosynthetic process; IEA:UniProtKB-UniRule. DR FunFam; 3.10.20.810:FF:000001; Histidine biosynthesis bifunctional protein HisIE; 1. DR Gene3D; 3.10.20.810; Phosphoribosyl-AMP cyclohydrolase; 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 PANTHER; PTHR42945; HISTIDINE BIOSYNTHESIS BIFUNCTIONAL PROTEIN; 1. DR PANTHER; PTHR42945:SF1; HISTIDINE BIOSYNTHESIS BIFUNCTIONAL PROTEIN HIS7; 1. DR Pfam; PF01502; PRA-CH; 1. DR SUPFAM; SSF141734; HisI-like; 1. PE 3: Inferred from homology; KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605, ECO:0000256|HAMAP- KW Rule:MF_01021}; KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490, ECO:0000256|HAMAP-Rule:MF_01021}; KW Histidine biosynthesis {ECO:0000256|ARBA:ARBA00023102, ECO:0000256|HAMAP- KW Rule:MF_01021}; KW Hydrolase {ECO:0000256|ARBA:ARBA00022801, ECO:0000256|HAMAP-Rule:MF_01021}; KW Magnesium {ECO:0000256|HAMAP-Rule:MF_01021}; KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_01021}; KW Zinc {ECO:0000256|HAMAP-Rule:MF_01021}. FT DOMAIN 29..102 FT /note="Phosphoribosyl-AMP cyclohydrolase" FT /evidence="ECO:0000259|Pfam:PF01502" FT BINDING 76 FT /ligand="Mg(2+)" FT /ligand_id="ChEBI:CHEBI:18420" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01021" FT BINDING 77 FT /ligand="Zn(2+)" FT /ligand_id="ChEBI:CHEBI:29105" FT /ligand_note="ligand shared between dimeric partners" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01021" FT BINDING 78 FT /ligand="Mg(2+)" FT /ligand_id="ChEBI:CHEBI:18420" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01021" FT BINDING 80 FT /ligand="Mg(2+)" FT /ligand_id="ChEBI:CHEBI:18420" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01021" FT BINDING 93 FT /ligand="Zn(2+)" FT /ligand_id="ChEBI:CHEBI:29105" FT /ligand_note="ligand shared between dimeric partners" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01021" FT BINDING 100 FT /ligand="Zn(2+)" FT /ligand_id="ChEBI:CHEBI:29105" FT /ligand_note="ligand shared between dimeric partners" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01021" SQ SEQUENCE 118 AA; 13001 MW; 4F83B229C468B15F CRC64; MFDPLSLKYD AAGLIPAIAQ DAASGEVLMM AWMNADAVAR TLSTGRVTYW SRSRASFWIK GESSGHVQQL VEMRVDCDRD CLLVLVEQTG PACHTNRRSC FYTGIRDGAE VVLSEPMV //