ID   PUR7_RICPR              Reviewed;         236 AA.
AC   O05946;
DT   30-MAY-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-JUL-1997, sequence version 1.
DT   25-MAY-2022, entry version 116.
DE   RecName: Full=Phosphoribosylaminoimidazole-succinocarboxamide synthase;
DE            EC=6.3.2.6;
DE   AltName: Full=SAICAR synthetase;
GN   Name=purC; OrderedLocusNames=RP220;
OS   Rickettsia prowazekii (strain Madrid E).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rickettsiales;
OC   Rickettsiaceae; Rickettsieae; Rickettsia; typhus group.
OX   NCBI_TaxID=272947;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=Madrid E;
RX   PubMed=9274032; DOI=10.1099/00221287-143-8-2783;
RA   Andersson J.O., Andersson S.G.E.;
RT   "Genomic rearrangements during evolution of the obligate intracellular
RT   parasite Rickettsia prowazekii as inferred from an analysis of 52015 bp
RT   nucleotide sequence.";
RL   Microbiology 143:2783-2795(1997).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Madrid E;
RX   PubMed=9823893; DOI=10.1038/24094;
RA   Andersson S.G.E., Zomorodipour A., Andersson J.O., Sicheritz-Ponten T.,
RA   Alsmark U.C.M., Podowski R.M., Naeslund A.K., Eriksson A.-S., Winkler H.H.,
RA   Kurland C.G.;
RT   "The genome sequence of Rickettsia prowazekii and the origin of
RT   mitochondria.";
RL   Nature 396:133-140(1998).
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   -!- 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   -!- SIMILARITY: Belongs to the SAICAR synthetase family. {ECO:0000305}.
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DR   EMBL; Y11780; CAA72468.1; -; Genomic_DNA.
DR   EMBL; AJ235270; CAA14683.1; -; Genomic_DNA.
DR   PIR; D71733; D71733.
DR   RefSeq; NP_220606.1; NC_000963.1.
DR   RefSeq; WP_004596020.1; NC_000963.1.
DR   AlphaFoldDB; O05946; -.
DR   SMR; O05946; -.
DR   STRING; 272947.RP220; -.
DR   EnsemblBacteria; CAA14683; CAA14683; CAA14683.
DR   GeneID; 57569348; -.
DR   KEGG; rpr:RP220; -.
DR   PATRIC; fig|272947.5.peg.227; -.
DR   eggNOG; COG0152; Bacteria.
DR   HOGENOM; CLU_061495_2_0_5; -.
DR   OMA; EFCYKND; -.
DR   UniPathway; UPA00074; UER00131.
DR   Proteomes; UP000002480; 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   Pfam; PF01259; SAICAR_synt; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Ligase; Nucleotide-binding; Purine biosynthesis;
KW   Reference proteome.
FT   CHAIN           1..236
FT                   /note="Phosphoribosylaminoimidazole-succinocarboxamide
FT                   synthase"
FT                   /id="PRO_0000100864"
SQ   SEQUENCE   236 AA;  27311 MW;  F2724796D969C5AC CRC64;
     MKKKLYEGSS KILYSAEEDF LLIMAFSDKA VLETGETVDI SGKGVLNNNI SSFLMDKLEM
     IGIENHLIEK INMREQLIQY VEVFPIQVII SSVACGRFVK EFGMDEGYVF DKPIIDFKVR
     SREFNYPIVN EYQISNFGWL TMDEIRIVKA QTLRIYDFLS GLFIGIGIRL VECKLEFGRV
     FNGEESIIML TDEISPDNCR LWHINSNEKL GFELIQNEPN KAFESYQLIA NRLKEK