ID   PUR9_LATSS              Reviewed;         510 AA.
AC   Q38XW3;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   22-NOV-2005, sequence version 1.
DT   27-MAR-2024, entry version 103.
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=LCA_0662;
OS   Latilactobacillus sakei subsp. sakei (strain 23K) (Lactobacillus sakei
OS   subsp. sakei).
OC   Bacteria; Bacillota; Bacilli; Lactobacillales; Lactobacillaceae;
OC   Latilactobacillus.
OX   NCBI_TaxID=314315;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=23K;
RX   PubMed=16273110; DOI=10.1038/nbt1160;
RA   Chaillou S., Champomier-Verges M.-C., Cornet M., Crutz-Le Coq A.-M.,
RA   Dudez A.-M., Martin V., Beaufils S., Darbon-Rongere E., Bossy R., Loux V.,
RA   Zagorec M.;
RT   "The complete genome sequence of the meat-borne lactic acid bacterium
RT   Lactobacillus sakei 23K.";
RL   Nat. Biotechnol. 23:1527-1533(2005).
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}.
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DR   EMBL; CR936503; CAI54966.1; -; Genomic_DNA.
DR   RefSeq; WP_011374371.1; NC_007576.1.
DR   AlphaFoldDB; Q38XW3; -.
DR   SMR; Q38XW3; -.
DR   STRING; 314315.LCA_0662; -.
DR   KEGG; lsa:LCA_0662; -.
DR   eggNOG; COG0138; Bacteria.
DR   HOGENOM; CLU_016316_5_2_9; -.
DR   OrthoDB; 9802065at2; -.
DR   UniPathway; UPA00074; UER00133.
DR   UniPathway; UPA00074; UER00135.
DR   Proteomes; UP000002707; 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; Reference proteome;
KW   Transferase.
FT   CHAIN           1..510
FT                   /note="Bifunctional purine biosynthesis protein PurH"
FT                   /id="PRO_1000018903"
FT   DOMAIN          1..144
FT                   /note="MGS-like"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01202"
SQ   SEQUENCE   510 AA;  55410 MW;  2A9F090BB903CC6B CRC64;
     MKRALISVSD KTGIVAFAQG LVAADFEIIS TGGTFSVLEK AGVPVTPIDE VTHFPEMLDG
     RVKTLHPNIH GGLLAKRDEP THMAALAEHE IAPIDLVCVN LYPFKETIQK PEITQEQAIE
     QIDIGGPSML RSAAKNFKSV YVVVDQADYD ETLAQLQQDD VTYRRHLAAK AFRHTAAYDS
     LIAGYLSDAD AVEFPEKLSL TYDFKQALRY GENAHQKAAF YQSALPSAFS IAAAHQLHGK
     ELSYNNIKDA DAAIKVAAEF SEPCVVAMKH MNPCGVGLGT TIYDAWQKAF AADSVSIFGG
     IIALNREVDV QTANALHELF LEIVIAPSFA PEALAILEKK KNIRLMTLDF EQAAKADRFE
     TVSVLGGLLV QERDRLTDQA SELKTVTTKA PTEDEKEALL FAQRVVKHVK SNAIVVATKG
     QTLGVGAGQM NRVGSVKIAL EQALANGMQA PFVLASDAFF PMDDSVAYAA EHGITAIIQP
     GGSIKDQDSI DMANQKGVSM VFTNRRHFKH
//