ID   PUR5_NITEC              Reviewed;         352 AA.
AC   Q0ADT8;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   17-OCT-2006, sequence version 1.
DT   25-MAY-2022, entry version 86.
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}; OrderedLocusNames=Neut_2277;
OS   Nitrosomonas eutropha (strain DSM 101675 / C91 / Nm57).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Nitrosomonadales;
OC   Nitrosomonadaceae; Nitrosomonas.
OX   NCBI_TaxID=335283;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 101675 / C91 / Nm57;
RX   PubMed=17991028; DOI=10.1111/j.1462-2920.2007.01409.x;
RA   Stein L.Y., Arp D.J., Berube P.M., Chain P.S., Hauser L., Jetten M.S.,
RA   Klotz M.G., Larimer F.W., Norton J.M., Op den Camp H.J.M., Shin M., Wei X.;
RT   "Whole-genome analysis of the ammonia-oxidizing bacterium, Nitrosomonas
RT   eutropha C91: implications for niche adaptation.";
RL   Environ. Microbiol. 9:2993-3007(2007).
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 + H(+) +
CC         phosphate; Xref=Rhea:RHEA:23032, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:30616, ChEBI:CHEBI:43474, ChEBI:CHEBI:137981,
CC         ChEBI:CHEBI:147287, ChEBI:CHEBI:456216; EC=6.3.3.1;
CC         Evidence={ECO:0000255|HAMAP-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; CP000450; ABI60494.1; -; Genomic_DNA.
DR   RefSeq; WP_011635270.1; NC_008344.1.
DR   AlphaFoldDB; Q0ADT8; -.
DR   SMR; Q0ADT8; -.
DR   STRING; 335283.Neut_2277; -.
DR   EnsemblBacteria; ABI60494; ABI60494; Neut_2277.
DR   KEGG; net:Neut_2277; -.
DR   eggNOG; COG0150; Bacteria.
DR   HOGENOM; CLU_047116_0_0_4; -.
DR   OMA; EPLFMTD; -.
DR   OrthoDB; 923547at2; -.
DR   UniPathway; UPA00074; UER00129.
DR   Proteomes; UP000001966; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
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   CDD; cd02196; PurM; 1.
DR   Gene3D; 3.30.1330.10; -; 1.
DR   Gene3D; 3.90.650.10; -; 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   PANTHER; PTHR10520; PTHR10520; 1.
DR   Pfam; PF00586; AIRS; 1.
DR   Pfam; PF02769; AIRS_C; 1.
DR   SUPFAM; SSF55326; SSF55326; 1.
DR   SUPFAM; SSF56042; SSF56042; 1.
DR   TIGRFAMs; TIGR00878; purM; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Cytoplasm; Ligase; Nucleotide-binding; Purine biosynthesis.
FT   CHAIN           1..352
FT                   /note="Phosphoribosylformylglycinamidine cyclo-ligase"
FT                   /id="PRO_1000046451"
SQ   SEQUENCE   352 AA;  37636 MW;  1372F6E32DCB5667 CRC64;
     MTVSNSTDPD KNHISYRTSG VDIDAGNRLV EIIKPFAQRT LRPEALGGIG GFGALFEVPG
     KYRQPVLVSG TDGVGTKLKL AFQYARHATI GIDLVAMSVN DILVQGAEPL FFLDYFACGK
     LDVETAAQVI QGIAHGCEQA GCALIGGETA EMPGMYPEGE YDLAGFAVGV VEKDQIIDGS
     SIRENDLVLG IASSGPHSNG FSLIRKILDR HAGQPDTGLD ETWLVDALLA PTRIYVKSIL
     ALLAELPVKG LAHITGGGLL ENIPRILPDS VMAHIDQSAW VRPPLFDWLQ QHGNVTDEEM
     LHVFNCGIGM IVIVAPEHAL TATNILRSGG ETVWQIGDIK SRKPGTPSIV IT