ID   PUR9_RUMCH              Reviewed;         514 AA.
AC   B8I490;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   03-MAR-2009, sequence version 1.
DT   27-MAR-2024, entry version 82.
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=Ccel_2181;
OS   Ruminiclostridium cellulolyticum (strain ATCC 35319 / DSM 5812 / JCM 6584 /
OS   H10) (Clostridium cellulolyticum).
OC   Bacteria; Bacillota; Clostridia; Eubacteriales; Oscillospiraceae;
OC   Ruminiclostridium.
OX   NCBI_TaxID=394503;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 35319 / DSM 5812 / JCM 6584 / H10;
RG   US DOE Joint Genome Institute;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA   Bruce D., Goodwin L., Pitluck S., Chertkov O., Saunders E., Brettin T.,
RA   Detter J.C., Han C., Larimer F., Land M., Hauser L., Kyrpides N.,
RA   Ivanova N., Zhou J., Richardson P.;
RT   "Complete sequence of Clostridium cellulolyticum H10.";
RL   Submitted (JAN-2009) to the EMBL/GenBank/DDBJ databases.
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; CP001348; ACL76523.1; -; Genomic_DNA.
DR   RefSeq; WP_015925618.1; NC_011898.1.
DR   AlphaFoldDB; B8I490; -.
DR   SMR; B8I490; -.
DR   STRING; 394503.Ccel_2181; -.
DR   KEGG; cce:Ccel_2181; -.
DR   eggNOG; COG0138; Bacteria.
DR   HOGENOM; CLU_016316_5_2_9; -.
DR   OrthoDB; 9802065at2; -.
DR   UniPathway; UPA00074; UER00133.
DR   UniPathway; UPA00074; UER00135.
DR   Proteomes; UP000001349; 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..514
FT                   /note="Bifunctional purine biosynthesis protein PurH"
FT                   /id="PRO_1000122953"
FT   DOMAIN          1..145
FT                   /note="MGS-like"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01202"
SQ   SEQUENCE   514 AA;  56148 MW;  5EBEFA92D4FF94F6 CRC64;
     MIKRALISVS DKTGIVEFAS ALASKGIEII STGGTAKALS AAGLKVINIS DITGFPECLD
     GRVKTLHPKV HAGLLAIRSN EEHMKQIKEL GVETIDMVII NLYPFKQTIL KGNVELEEAI
     ENIDIGGPTM LRAAAKNYQD VAVIVDPADY KNVLNEMNES GDVSVKTKFR LAYKVFEHTS
     HYDTLIAKYL RDTLGDIDFP ETLSLTYEKA QDMRYGENPH QKAVFYKEVG ANTGLLPSAV
     QLHGKELSFN NINDTNGAIE LVKEFDEPTV VAVKHTNPCG VGSADNIYDA YMRAYESDPV
     SIFGGIIAAN REIDAKTAEE INKIFVEIVV APSFTEDALA VLTQKKNVRL LKLENITDEI
     SPDAYDMKKV AGGLLVQKYN SQLFNQEDLK CVTDVQPTKE QMEDLVFAMK VVKHTKSNAI
     TLAKGKMTIG VGPGQTNRIV PTKVSIEYAG ERSQGAVMAS DAYFPFSDCV EAAAAAGIKA
     IIQPGGSIRD QESIDACNKY GIAMVFTGMR HFKH
//