ID   PUR7_PROMA              Reviewed;         244 AA.
AC   Q7VAN8;
DT   15-DEC-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2003, sequence version 1.
DT   25-MAY-2022, entry version 101.
DE   RecName: Full=Phosphoribosylaminoimidazole-succinocarboxamide synthase {ECO:0000255|HAMAP-Rule:MF_00137};
DE            EC=6.3.2.6 {ECO:0000255|HAMAP-Rule:MF_00137};
DE   AltName: Full=SAICAR synthetase {ECO:0000255|HAMAP-Rule:MF_00137};
GN   Name=purC {ECO:0000255|HAMAP-Rule:MF_00137}; OrderedLocusNames=Pro_1420;
OS   Prochlorococcus marinus (strain SARG / CCMP1375 / SS120).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Prochlorococcus.
OX   NCBI_TaxID=167539;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SARG / CCMP1375 / SS120;
RX   PubMed=12917486; DOI=10.1073/pnas.1733211100;
RA   Dufresne A., Salanoubat M., Partensky F., Artiguenave F., Axmann I.M.,
RA   Barbe V., Duprat S., Galperin M.Y., Koonin E.V., Le Gall F., Makarova K.S.,
RA   Ostrowski M., Oztas S., Robert C., Rogozin I.B., Scanlan D.J.,
RA   Tandeau de Marsac N., Weissenbach J., Wincker P., Wolf Y.I., Hess W.R.;
RT   "Genome sequence of the cyanobacterium Prochlorococcus marinus SS120, a
RT   nearly minimal oxyphototrophic genome.";
RL   Proc. Natl. Acad. Sci. U.S.A. 100:10020-10025(2003).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxylate + ATP +
CC         L-aspartate = (2S)-2-[5-amino-1-(5-phospho-beta-D-ribosyl)imidazole-
CC         4-carboxamido]succinate + ADP + 2 H(+) + phosphate;
CC         Xref=Rhea:RHEA:22628, ChEBI:CHEBI:15378, ChEBI:CHEBI:29991,
CC         ChEBI:CHEBI:30616, ChEBI:CHEBI:43474, ChEBI:CHEBI:58443,
CC         ChEBI:CHEBI:77657, ChEBI:CHEBI:456216; EC=6.3.2.6;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00137};
CC   -!- PATHWAY: Purine metabolism; IMP biosynthesis via de novo pathway; 5-
CC       amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide from 5-amino-1-(5-
CC       phospho-D-ribosyl)imidazole-4-carboxylate: step 1/2.
CC       {ECO:0000255|HAMAP-Rule:MF_00137}.
CC   -!- SIMILARITY: Belongs to the SAICAR synthetase family.
CC       {ECO:0000255|HAMAP-Rule:MF_00137}.
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DR   EMBL; AE017126; AAQ00464.1; -; Genomic_DNA.
DR   RefSeq; NP_875811.1; NC_005042.1.
DR   RefSeq; WP_011125571.1; NC_005042.1.
DR   AlphaFoldDB; Q7VAN8; -.
DR   SMR; Q7VAN8; -.
DR   STRING; 167539.Pro_1420; -.
DR   EnsemblBacteria; AAQ00464; AAQ00464; Pro_1420.
DR   GeneID; 54200757; -.
DR   KEGG; pma:Pro_1420; -.
DR   PATRIC; fig|167539.5.peg.1486; -.
DR   eggNOG; COG0152; Bacteria.
DR   HOGENOM; CLU_061495_2_0_3; -.
DR   OMA; EFCYKND; -.
DR   OrthoDB; 1345271at2; -.
DR   UniPathway; UPA00074; UER00131.
DR   Proteomes; UP000001420; Chromosome.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0004639; F:phosphoribosylaminoimidazolesuccinocarboxamide synthase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006189; P:'de novo' IMP biosynthetic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0009236; P:cobalamin biosynthetic process; IEA:InterPro.
DR   CDD; cd01415; SAICAR_synt_PurC; 1.
DR   HAMAP; MF_00137; SAICAR_synth; 1.
DR   InterPro; IPR028923; SAICAR_synt/ADE2_N.
DR   InterPro; IPR033934; SAICAR_synt_PurC.
DR   InterPro; IPR001636; SAICAR_synth.
DR   InterPro; IPR018236; SAICAR_synthetase_CS.
DR   Pfam; PF01259; SAICAR_synt; 1.
DR   TIGRFAMs; TIGR00081; purC; 1.
DR   PROSITE; PS01057; SAICAR_SYNTHETASE_1; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Ligase; Nucleotide-binding; Purine biosynthesis;
KW   Reference proteome.
FT   CHAIN           1..244
FT                   /note="Phosphoribosylaminoimidazole-succinocarboxamide
FT                   synthase"
FT                   /id="PRO_0000100852"
SQ   SEQUENCE   244 AA;  27820 MW;  B12951F1409D53F9 CRC64;
     MAPNHGALLY EGKAKRVYYT DNSDEFLVHF KNDATAFNAK KHAQLEGKGS LNCEISTEIF
     KLLERNGIAT HFLNLEDDCW MLVQRVDVIP IEIVIRNIAS GSLCKQTPIA PGTELSRPLM
     DLYLKDDVLE DPLLTEERID LLNLLSSSQR KEIQRLSLRV NDCLKEFMKG LDLLLVDFKL
     EMGFNGSGQL LIADEISPDS CRIWDLKTND QDDRILDKDR FRKDLGGVLE GYSEILRRIK
     AFNS