ID   PUR9_LIGS1              Reviewed;         512 AA.
AC   Q1WU55;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   02-MAY-2006, sequence version 1.
DT   27-MAR-2024, entry version 92.
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=LSL_0670;
OS   Ligilactobacillus salivarius (strain UCC118) (Lactobacillus salivarius).
OC   Bacteria; Bacillota; Bacilli; Lactobacillales; Lactobacillaceae;
OC   Ligilactobacillus.
OX   NCBI_TaxID=362948;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=UCC118;
RX   PubMed=16617113; DOI=10.1073/pnas.0511060103;
RA   Claesson M.J., Li Y., Leahy S., Canchaya C., van Pijkeren J.P.,
RA   Cerdeno-Tarraga A.M., Parkhill J., Flynn S., O'Sullivan G.C., Collins J.K.,
RA   Higgins D., Shanahan F., Fitzgerald G.F., van Sinderen D., O'Toole P.W.;
RT   "Multireplicon genome architecture of Lactobacillus salivarius.";
RL   Proc. Natl. Acad. Sci. U.S.A. 103:6718-6723(2006).
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; CP000233; ABD99480.1; -; Genomic_DNA.
DR   RefSeq; WP_003700048.1; NC_007929.1.
DR   RefSeq; YP_535563.1; NC_007929.1.
DR   AlphaFoldDB; Q1WU55; -.
DR   SMR; Q1WU55; -.
DR   STRING; 362948.LSL_0670; -.
DR   KEGG; lsl:LSL_0670; -.
DR   PATRIC; fig|362948.14.peg.750; -.
DR   HOGENOM; CLU_016316_5_2_9; -.
DR   OrthoDB; 9802065at2; -.
DR   UniPathway; UPA00074; UER00133.
DR   UniPathway; UPA00074; UER00135.
DR   Proteomes; UP000006559; 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..512
FT                   /note="Bifunctional purine biosynthesis protein PurH"
FT                   /id="PRO_1000018902"
FT   DOMAIN          1..144
FT                   /note="MGS-like"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01202"
SQ   SEQUENCE   512 AA;  57064 MW;  C538142AC324BF2C CRC64;
     MKRALVSVSD KNNLVPFVKK LVEHDFEIVS TGGTKKYLDE AGIKTISVEE VTHFPEILDG
     RVKTLNPYIH GGLLARRELP EHMETLKEQN ITPIDLVCVN LYPFKQTIEN PEVTLENAIE
     NIDIGGPSML RSAAKNYRDV VVVVDADDYE GLEKELDENG EISLETRFKL SAKTFRHTAA
     YDALIADYLS KQAGEDNPEK LTLTYDLISS MRYGENSHQK AWFYEDAMPK AYSITQAKQL
     NGKKLSFNNI RDADAAIRAV REFDGPTVVA LKHMNPCGIG QADNIELAWD RAYEADSISI
     FGGVIALNRK VDLATAEKMH KLFLEIIIAP EFDADALEVL SKKKNLRLLQ LDFTKKDEDV
     RDETVSIMGG LLRQEQDVID ENPKNWEVVT ENAPSDSQLE TLLFAWKAVK HTKSNAIVVA
     NDERTLGIGA GQPNRIDSTK IAIKHAGDSL NDKAVLASDA FFPMDDCVQY AAEHGIKAIV
     QPGGSIRDKD SIAMANKYGV AMVFTGVRHF RH
//