ID PUR9_STAAS Reviewed; 492 AA. AC Q6GAE0; DT 21-DEC-2004, integrated into UniProtKB/Swiss-Prot. DT 19-JUL-2004, sequence version 1. DT 27-MAR-2024, entry version 105. 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=SAS1009; OS Staphylococcus aureus (strain MSSA476). OC Bacteria; Bacillota; Bacilli; Bacillales; Staphylococcaceae; OC Staphylococcus. OX NCBI_TaxID=282459; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=MSSA476; RX PubMed=15213324; DOI=10.1073/pnas.0402521101; RA Holden M.T.G., Feil E.J., Lindsay J.A., Peacock S.J., Day N.P.J., RA Enright M.C., Foster T.J., Moore C.E., Hurst L., Atkin R., Barron A., RA Bason N., Bentley S.D., Chillingworth C., Chillingworth T., Churcher C., RA Clark L., Corton C., Cronin A., Doggett J., Dowd L., Feltwell T., Hance Z., RA Harris B., Hauser H., Holroyd S., Jagels K., James K.D., Lennard N., RA Line A., Mayes R., Moule S., Mungall K., Ormond D., Quail M.A., RA Rabbinowitsch E., Rutherford K.M., Sanders M., Sharp S., Simmonds M., RA Stevens K., Whitehead S., Barrell B.G., Spratt B.G., Parkhill J.; RT "Complete genomes of two clinical Staphylococcus aureus strains: evidence RT for the rapid evolution of virulence and drug resistance."; RL Proc. Natl. Acad. Sci. U.S.A. 101:9786-9791(2004). 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; BX571857; CAG42783.1; -; Genomic_DNA. DR RefSeq; WP_000709290.1; NC_002953.3. DR AlphaFoldDB; Q6GAE0; -. DR SMR; Q6GAE0; -. DR KEGG; sas:SAS1009; -. DR HOGENOM; CLU_016316_5_2_9; -. DR UniPathway; UPA00074; UER00133. DR UniPathway; UPA00074; UER00135. 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..492 FT /note="Bifunctional purine biosynthesis protein PurH" FT /id="PRO_0000192126" FT DOMAIN 1..144 FT /note="MGS-like" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01202" SQ SEQUENCE 492 AA; 54348 MW; 39C1B60098E53467 CRC64; MKKAILSVSN KTGIVEFAKA LTQLNYELYS TGGTKRILDE ANVPVRSVSD LTHFPEIMDG RVKTLHPAVH GGILADRNKP QHLNELSEQH IDLIDMVVVN LYPFQQTVAN PDVTMDEAIE NIDIGGPTML RAAAKNYKHV TTIVHPADYQ EVLTRLRNDS LDESYRQSLM IKVFEHTAEY DEAIVRFFKG DKETLRYGEN PQQSAYFVRT SNAKHTIAGA KQLHGKQLSY NNIKDADATL ALVKKFDTPA TVAVKHMNPC GVGIGDTIEQ AFQHAYEADS QSIFGGIVAL NRAVTPELAE QLHSIFLEVI IAPKFTDEAL DILKQKKNVR LLEIDMTIDS NEEEFVSVSG GYLVQDKDNY VVPKEEMKVV TEVAPTDEQW EAMLLGWKVV PSVKSNAIIL SNNKQTVGIG AGQMNRVGAA KIALERAIEI NDHVALVSDG FFPMGDTVEL AAQHGIKAII QPGGSIKDQD SIDMANKHGI AMVVTGTRHF KH //