ID   PUR5_RHIEC              Reviewed;         357 AA.
AC   Q2KA45;
DT   31-OCT-2006, integrated into UniProtKB/Swiss-Prot.
DT   07-MAR-2006, sequence version 1.
DT   04-NOV-2026, entry version 118.
DE   RecName: Full=Phosphoribosylformylglycinamidine cyclo-ligase {ECO:0000255|HAMAP-Rule:MF_00741};
DE            EC=6.3.3.1 {ECO:0000255|HAMAP-Rule:MF_00741};
DE   AltName: Full=AIR synthase {ECO:0000255|HAMAP-Rule:MF_00741};
DE   AltName: Full=AIRS {ECO:0000255|HAMAP-Rule:MF_00741};
DE   AltName: Full=Phosphoribosyl-aminoimidazole synthetase {ECO:0000255|HAMAP-Rule:MF_00741};
GN   Name=purM {ECO:0000255|HAMAP-Rule:MF_00741};
GN   OrderedLocusNames=RHE_CH01488;
OS   Rhizobium etli (strain ATCC 51251 / DSM 11541 / JCM 21823 / NBRC 15573 /
OS   CFN 42).
OC   Bacteria; Pseudomonadati; Pseudomonadota; Alphaproteobacteria;
OC   Hyphomicrobiales; Rhizobiaceae; Rhizobium/Agrobacterium group; Rhizobium.
OX   NCBI_TaxID=347834;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 51251 / DSM 11541 / JCM 21823 / NBRC 15573 / CFN 42;
RX   PubMed=16505379; DOI=10.1073/pnas.0508502103;
RA   Gonzalez V., Santamaria R.I., Bustos P., Hernandez-Gonzalez I.,
RA   Medrano-Soto A., Moreno-Hagelsieb G., Janga S.C., Ramirez M.A.,
RA   Jimenez-Jacinto V., Collado-Vides J., Davila G.;
RT   "The partitioned Rhizobium etli genome: genetic and metabolic redundancy in
RT   seven interacting replicons.";
RL   Proc. Natl. Acad. Sci. U.S.A. 103:3834-3839(2006).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=2-formamido-N(1)-(5-O-phospho-beta-D-ribosyl)acetamidine + ATP
CC         = 5-amino-1-(5-phospho-beta-D-ribosyl)imidazole + ADP + phosphate +
CC         H(+); Xref=Rhea:RHEA:23032, ChEBI:CHEBI:15378, ChEBI:CHEBI:30616,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:137981, ChEBI:CHEBI:147287,
CC         ChEBI:CHEBI:456216; EC=6.3.3.1; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00741};
CC   -!- PATHWAY: Purine metabolism; IMP biosynthesis via de novo pathway; 5-
CC       amino-1-(5-phospho-D-ribosyl)imidazole from N(2)-formyl-N(1)-(5-
CC       phospho-D-ribosyl)glycinamide: step 2/2. {ECO:0000255|HAMAP-
CC       Rule:MF_00741}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00741}.
CC   -!- SIMILARITY: Belongs to the AIR synthase family. {ECO:0000255|HAMAP-
CC       Rule:MF_00741}.
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DR   EMBL; CP000133; ABC90291.1; -; Genomic_DNA.
DR   RefSeq; WP_011424821.1; NC_007761.1.
DR   AlphaFoldDB; Q2KA45; -.
DR   SMR; Q2KA45; -.
DR   KEGG; ret:RHE_CH01488; -.
DR   eggNOG; COG0150; Bacteria.
DR   HOGENOM; CLU_047116_0_0_5; -.
DR   OMA; AACPWSD; -.
DR   OrthoDB; 9777881at2; -.
DR   UniPathway; UPA00074; UER00129.
DR   Proteomes; UP000001936; Chromosome.
DR   GO; GO:0005829; C:cytosol; IEA:TreeGrafter.
DR   GO; GO:0004637; F:phosphoribosylamine-glycine ligase activity; IEA:TreeGrafter.
DR   GO; GO:0004641; F:phosphoribosylformylglycinamidine cyclo-ligase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006189; P:'de novo' IMP biosynthetic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0046084; P:adenine biosynthetic process; IEA:TreeGrafter.
DR   CDD; cd02196; PurM; 1.
DR   FunFam; 3.30.1330.10:FF:000001; Phosphoribosylformylglycinamidine cyclo-ligase; 1.
DR   FunFam; 3.90.650.10:FF:000019; Trifunctional purine biosynthetic protein adenosine-3; 1.
DR   Gene3D; 3.90.650.10; PurM-like C-terminal domain; 1.
DR   Gene3D; 3.30.1330.10; PurM-like, N-terminal domain; 1.
DR   HAMAP; MF_00741; AIRS; 1.
DR   InterPro; IPR010918; PurM-like_C_dom.
DR   InterPro; IPR036676; PurM-like_C_sf.
DR   InterPro; IPR016188; PurM-like_N.
DR   InterPro; IPR036921; PurM-like_N_sf.
DR   InterPro; IPR004733; PurM_cligase.
DR   NCBIfam; TIGR00878; purM; 1.
DR   PANTHER; PTHR10520:SF12; TRIFUNCTIONAL PURINE BIOSYNTHETIC PROTEIN ADENOSINE-3; 1.
DR   PANTHER; PTHR10520; TRIFUNCTIONAL PURINE BIOSYNTHETIC PROTEIN ADENOSINE-3-RELATED; 1.
DR   Pfam; PF00586; AIRS; 1.
DR   Pfam; PF02769; AIRS_C; 1.
DR   SUPFAM; SSF56042; PurM C-terminal domain-like; 1.
DR   SUPFAM; SSF55326; PurM N-terminal domain-like; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Cytoplasm; Ligase; Nucleotide-binding; Purine biosynthesis;
KW   Reference proteome.
FT   CHAIN           1..357
FT                   /note="Phosphoribosylformylglycinamidine cyclo-ligase"
FT                   /id="PRO_0000258391"
SQ   SEQUENCE   357 AA;  36689 MW;  46841359020C552B CRC64;
     MSQSGKNGLT YSDAGVDIDN GNLLVEKIKP AVRSTRRPGA DGEIGGFGGL FDLKAAGFTD
     PVLVAANDGV GTKLKIAIDA DYHDTVGIDL VAMCVNDLVV QGAEPLFFLD YFATGKLVPD
     QGAAIVGGIA AGCREAGCAL IGGETAEMPG MYSSGDYDLA GFAVGAAERG KLLPSGDIAE
     GDVILGLASS GVHSNGFSLV RKIVELSGLG WDAPAPFAEG KKLGEALLEP TRIYVKPLLK
     AIRETGALKA LAHITGGGFP ENIPRVLPEH LAAEIDLGAV KVPPVFSWLA RTGGVEAKEM
     LRTFNCGIGM IVVVAEENVA AVSKALEAEG EKVVTLGRMI ARAEGAAGTV YKGTLAI
//