ID PUR9_BACCN Reviewed; 511 AA. AC A7GKI2; DT 20-MAY-2008, integrated into UniProtKB/Swiss-Prot. DT 11-SEP-2007, sequence version 1. DT 27-MAR-2024, entry version 99. DE RecName: Full=Bifunctional purine biosynthesis protein PurH {ECO:0000255|HAMAP-Rule:MF_00139}; DE Includes: DE RecName: Full=Phosphoribosylaminoimidazolecarboxamide formyltransferase {ECO:0000255|HAMAP-Rule:MF_00139}; DE EC=2.1.2.3 {ECO:0000255|HAMAP-Rule:MF_00139}; DE AltName: Full=AICAR transformylase {ECO:0000255|HAMAP-Rule:MF_00139}; DE Includes: DE RecName: Full=IMP cyclohydrolase {ECO:0000255|HAMAP-Rule:MF_00139}; DE EC=3.5.4.10 {ECO:0000255|HAMAP-Rule:MF_00139}; DE AltName: Full=ATIC {ECO:0000255|HAMAP-Rule:MF_00139}; DE AltName: Full=IMP synthase {ECO:0000255|HAMAP-Rule:MF_00139}; DE AltName: Full=Inosinicase {ECO:0000255|HAMAP-Rule:MF_00139}; GN Name=purH {ECO:0000255|HAMAP-Rule:MF_00139}; GN OrderedLocusNames=Bcer98_0277; OS Bacillus cytotoxicus (strain DSM 22905 / CIP 110041 / 391-98 / NVH 391-98). OC Bacteria; Bacillota; Bacilli; Bacillales; Bacillaceae; Bacillus; OC Bacillus cereus group. OX NCBI_TaxID=315749; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=DSM 22905 / CIP 110041 / 391-98 / NVH 391-98; RX PubMed=17434157; DOI=10.1016/j.cbi.2007.03.003; RA Lapidus A., Goltsman E., Auger S., Galleron N., Segurens B., Dossat C., RA Land M.L., Broussolle V., Brillard J., Guinebretiere M.-H., Sanchis V., RA Nguen-the C., Lereclus D., Richardson P., Wincker P., Weissenbach J., RA Ehrlich S.D., Sorokin A.; RT "Extending the Bacillus cereus group genomics to putative food-borne RT pathogens of different toxicity."; RL Chem. Biol. Interact. 171:236-249(2008). CC -!- CATALYTIC ACTIVITY: CC Reaction=(6R)-10-formyltetrahydrofolate + 5-amino-1-(5-phospho-beta-D- CC ribosyl)imidazole-4-carboxamide = (6S)-5,6,7,8-tetrahydrofolate + 5- CC formamido-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide; CC Xref=Rhea:RHEA:22192, ChEBI:CHEBI:57453, ChEBI:CHEBI:58467, CC ChEBI:CHEBI:58475, ChEBI:CHEBI:195366; EC=2.1.2.3; CC Evidence={ECO:0000255|HAMAP-Rule:MF_00139}; 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_00139}; CC -!- PATHWAY: Purine metabolism; IMP biosynthesis via de novo pathway; 5- CC formamido-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide from 5-amino- CC 1-(5-phospho-D-ribosyl)imidazole-4-carboxamide (10-formyl THF route): CC step 1/1. {ECO:0000255|HAMAP-Rule:MF_00139}. 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_00139}. CC -!- DOMAIN: The IMP cyclohydrolase activity resides in the N-terminal CC region. {ECO:0000255|HAMAP-Rule:MF_00139}. CC -!- SIMILARITY: Belongs to the PurH family. {ECO:0000255|HAMAP- CC Rule:MF_00139}. 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; CP000764; ABS20640.1; -; Genomic_DNA. DR RefSeq; WP_011983399.1; NC_009674.1. DR AlphaFoldDB; A7GKI2; -. DR SMR; A7GKI2; -. DR STRING; 315749.Bcer98_0277; -. DR GeneID; 56415834; -. DR KEGG; bcy:Bcer98_0277; -. DR eggNOG; COG0138; Bacteria. DR HOGENOM; CLU_016316_5_2_9; -. DR OrthoDB; 9802065at2; -. DR UniPathway; UPA00074; UER00133. DR UniPathway; UPA00074; UER00135. DR Proteomes; UP000002300; Chromosome. DR GO; GO:0003937; F:IMP cyclohydrolase activity; IEA:UniProtKB-UniRule. DR GO; GO:0004643; F:phosphoribosylaminoimidazolecarboxamide formyltransferase activity; IEA:UniProtKB-UniRule. DR GO; GO:0006189; P:'de novo' IMP biosynthetic process; IEA:UniProtKB-UniRule. DR CDD; cd01421; IMPCH; 1. DR Gene3D; 3.40.140.20; -; 2. DR Gene3D; 3.40.50.1380; Methylglyoxal synthase-like domain; 1. DR HAMAP; MF_00139; PurH; 1. DR InterPro; IPR024051; AICAR_Tfase_dup_dom_sf. DR InterPro; IPR016193; Cytidine_deaminase-like. DR InterPro; IPR011607; MGS-like_dom. DR InterPro; IPR036914; MGS-like_dom_sf. DR InterPro; IPR002695; PurH-like. DR NCBIfam; TIGR00355; purH; 1. DR PANTHER; PTHR11692:SF0; BIFUNCTIONAL PURINE BIOSYNTHESIS PROTEIN ATIC; 1. DR PANTHER; PTHR11692; BIFUNCTIONAL PURINE BIOSYNTHESIS PROTEIN PURH; 1. DR Pfam; PF01808; AICARFT_IMPCHas; 1. DR Pfam; PF02142; MGS; 1. DR PIRSF; PIRSF000414; AICARFT_IMPCHas; 1. DR SMART; SM00798; AICARFT_IMPCHas; 1. DR SMART; SM00851; MGS; 1. DR SUPFAM; SSF53927; Cytidine deaminase-like; 1. DR SUPFAM; SSF52335; Methylglyoxal synthase-like; 1. DR PROSITE; PS51855; MGS; 1. PE 3: Inferred from homology; KW Hydrolase; Multifunctional enzyme; Purine biosynthesis; Transferase. FT CHAIN 1..511 FT /note="Bifunctional purine biosynthesis protein PurH" FT /id="PRO_1000076473" FT DOMAIN 1..145 FT /note="MGS-like" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01202" SQ SEQUENCE 511 AA; 55681 MW; 6670148C002D0444 CRC64; MKKRALVSVS NKTGVVEFVK GLLEQGIEVI STGGTKKLLE ENGLQVMGIS EVTGFPEIMD GRVKTLHPNI HGGLLAVRDN EAHVAEMSEL GIQLIDFVVV NLYPFKETIA KPDVTFADAI ENIDIGGPTM IRSAAKNHKF VSVIVDPADY DVVLAELKEK GEVTDETKRK LAAKVFRHTA AYDALISNYL TEQMGEESPE ILTVTFEKKQ DLRYGENPHQ KATFYKAPFA VASSVAYAEQ LHGKELSYNN INDADAALSI VKEFTEPAVV AVKHMNPCGV GVGTDIHEAY TRAYEADPVS IFGGIIAANR EIDKRVAEKL HEIFLEIIIA PSFSKEALEV LQSKKNLRLL TVNIEKTTSA SKKLTSVQGG LLVQEEDTLA LNEETIIIPT KREPTEQEWN DLKLAWKVVK HVKSNAIVLA KDNMTIGVGA GQMNRVGSAK IAISQAGSKA QGSALASDAF FPMPDTVEEA AKAGITAIIQ PGGSIRDEDS IKKADEYGIT MVFTGVRHFK H //