ID   Q2FT49_METHJ            Unreviewed;       330 AA.
AC   Q2FT49;
DT   21-MAR-2006, integrated into UniProtKB/TrEMBL.
DT   21-MAR-2006, sequence version 1.
DT   02-SEP-2026, entry version 109.
DE   RecName: Full=Phosphoribosylformylglycinamidine cyclo-ligase {ECO:0000256|ARBA:ARBA00013047, ECO:0000256|HAMAP-Rule:MF_00741};
DE            EC=6.3.3.1 {ECO:0000256|ARBA:ARBA00013047, ECO:0000256|HAMAP-Rule:MF_00741};
DE   AltName: Full=AIR synthase {ECO:0000256|HAMAP-Rule:MF_00741};
DE   AltName: Full=AIRS {ECO:0000256|HAMAP-Rule:MF_00741};
DE   AltName: Full=Phosphoribosyl-aminoimidazole synthetase {ECO:0000256|HAMAP-Rule:MF_00741};
GN   Name=purM {ECO:0000256|HAMAP-Rule:MF_00741};
GN   OrderedLocusNames=Mhun_3055 {ECO:0000313|EMBL:ABD42742.1};
OS   Methanospirillum hungatei JF-1 (strain ATCC 27890 / DSM 864 / NBRC 100397 /
OS   JF-1).
OC   Archaea; Methanobacteriati; Methanobacteriota; Stenosarchaea group;
OC   Methanomicrobia; Methanomicrobiales; Methanospirillaceae; Methanospirillum.
OX   NCBI_TaxID=323259 {ECO:0000313|EMBL:ABD42742.1, ECO:0000313|Proteomes:UP000001941};
RN   [1] {ECO:0000313|Proteomes:UP000001941}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 27890 / DSM 864 / NBRC 100397 / JF-1
RC   {ECO:0000313|Proteomes:UP000001941};
RX   PubMed=26744606; DOI=10.1186/s40793-015-0124-8;
RA   Gunsalus R.P., Cook L.E., Crable B., Rohlin L., McDonald E., Mouttaki H.,
RA   Sieber J.R., Poweleit N., Zhou H., Lapidus A.L., Daligault H.E., Land M.,
RA   Gilna P., Ivanova N., Kyrpides N., Culley D.E., McInerney M.J.;
RT   "Complete genome sequence of Methanospirillum hungatei type strain JF1.";
RL   Stand. Genomic Sci. 11:2-2(2016).
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:0000256|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.
CC       {ECO:0000256|ARBA:ARBA00004686, ECO:0000256|HAMAP-Rule:MF_00741}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00741}.
CC   -!- SIMILARITY: Belongs to the AIR synthase family. {ECO:0000256|HAMAP-
CC       Rule:MF_00741}.
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DR   EMBL; CP000254; ABD42742.1; -; Genomic_DNA.
DR   RefSeq; WP_011449993.1; NC_007796.1.
DR   AlphaFoldDB; Q2FT49; -.
DR   FunCoup; Q2FT49; 121.
DR   STRING; 323259.Mhun_3055; -.
DR   EnsemblBacteria; ABD42742; ABD42742; Mhun_3055.
DR   GeneID; 3923463; -.
DR   KEGG; mhu:Mhun_3055; -.
DR   eggNOG; arCOG00639; Archaea.
DR   HOGENOM; CLU_047116_0_0_2; -.
DR   InParanoid; Q2FT49; -.
DR   OrthoDB; 6605at2157; -.
DR   UniPathway; UPA00074; UER00129.
DR   Proteomes; UP000001941; 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   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 {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|HAMAP-
KW   Rule:MF_00741}; Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00741};
KW   Ligase {ECO:0000256|ARBA:ARBA00022598, ECO:0000256|HAMAP-Rule:MF_00741};
KW   Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW   Rule:MF_00741}; Purine biosynthesis {ECO:0000256|HAMAP-Rule:MF_00741};
KW   Reference proteome {ECO:0000313|Proteomes:UP000001941}.
FT   DOMAIN          45..156
FT                   /note="PurM-like N-terminal"
FT                   /evidence="ECO:0000259|Pfam:PF00586"
FT   DOMAIN          170..324
FT                   /note="PurM-like C-terminal"
FT                   /evidence="ECO:0000259|Pfam:PF02769"
SQ   SEQUENCE   330 AA;  35523 MW;  9734F1AE5D4958CF CRC64;
     MEQDAYREAG VDIDLEAAAV KSLISELTYR RTDQFGMASE IGHFAGFISF GKYVLAMAVD
     GVGTKMLVAD ALQDWSTVGI DCIAMNVNDL YVMNLEPVAF VDYIATSELS QEQMRQIGKG
     LNEGARQANL SILGGETATL KGLVTGLDLA GACLGIQEKE KVISGSAITP GDCMVGIPSS
     GIHSNGLTLA RRMVEQHGSY SDRLPSGATL GDELLRPTRI YADAIQVCAE TAVHGMCHIT
     GGGLLNLNRL GEFGYVFDAP LPPQEIFEWI AKAGQISEPE MYRTFNMGMG YVFILPKEGV
     KTVQKYFPDA QIVGHITGTP GIRLNGKKLF
//