ID   PUR5_METBU              Reviewed;         333 AA.
AC   Q12UL8;
DT   31-OCT-2006, integrated into UniProtKB/Swiss-Prot.
DT   22-AUG-2006, sequence version 1.
DT   25-MAY-2022, entry version 88.
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=Mbur_1979;
OS   Methanococcoides burtonii (strain DSM 6242 / NBRC 107633 / OCM 468 /
OS   ACE-M).
OC   Archaea; Euryarchaeota; Stenosarchaea group; Methanomicrobia;
OC   Methanosarcinales; Methanosarcinaceae; Methanococcoides.
OX   NCBI_TaxID=259564;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 6242 / NBRC 107633 / OCM 468 / ACE-M;
RX   PubMed=19404327; DOI=10.1038/ismej.2009.45;
RA   Allen M.A., Lauro F.M., Williams T.J., Burg D., Siddiqui K.S.,
RA   De Francisci D., Chong K.W., Pilak O., Chew H.H., De Maere M.Z., Ting L.,
RA   Katrib M., Ng C., Sowers K.R., Galperin M.Y., Anderson I.J., Ivanova N.,
RA   Dalin E., Martinez M., Lapidus A., Hauser L., Land M., Thomas T.,
RA   Cavicchioli R.;
RT   "The genome sequence of the psychrophilic archaeon, Methanococcoides
RT   burtonii: the role of genome evolution in cold adaptation.";
RL   ISME J. 3:1012-1035(2009).
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; CP000300; ABE52858.1; -; Genomic_DNA.
DR   RefSeq; WP_011500000.1; NC_007955.1.
DR   AlphaFoldDB; Q12UL8; -.
DR   SMR; Q12UL8; -.
DR   STRING; 259564.Mbur_1979; -.
DR   EnsemblBacteria; ABE52858; ABE52858; Mbur_1979.
DR   GeneID; 3996931; -.
DR   KEGG; mbu:Mbur_1979; -.
DR   HOGENOM; CLU_047116_0_0_2; -.
DR   OMA; EPLFMTD; -.
DR   OrthoDB; 62508at2157; -.
DR   UniPathway; UPA00074; UER00129.
DR   Proteomes; UP000001979; 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;
KW   Reference proteome.
FT   CHAIN           1..333
FT                   /note="Phosphoribosylformylglycinamidine cyclo-ligase"
FT                   /id="PRO_0000258436"
SQ   SEQUENCE   333 AA;  36099 MW;  1577A5AF918A194F CRC64;
     MNEKHLTYAD SGVDIEKEES TIKALTNGMT YKREGIGAPL TSIGHYAGLI DFGEYALAMA
     TDGVGSKVLI ANEMKRWNTV GIDCIAMNVN DLLAIGAEPI SFVDYLALEK HSDDFASQIG
     EGLVKGAEIS RMSIVGGETA TLPEIVNGFD LAGTCLGMVK KEEVITGEKV RLGDVLVGIP
     SNGVHSNGYT LVRDIIKESG HSYHEDFSYN TETTIGDELL IPTRIYMEVL DVIKECDVHG
     LAHITGSGLL KLKRVTGLGF DFTDPIEPGN IFKFLQEEGN VDDLEMYRTF NMGMGFLIIL
     PEADAEKAAE MTGGKIVGKI VESGIRVRDL EIV