ID   NADA_ECOHS              Reviewed;         347 AA.
AC   A7ZY06;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   23-OCT-2007, sequence version 1.
DT   03-AUG-2022, entry version 84.
DE   RecName: Full=Quinolinate synthase {ECO:0000255|HAMAP-Rule:MF_00567};
DE            EC=2.5.1.72 {ECO:0000255|HAMAP-Rule:MF_00567};
GN   Name=nadA {ECO:0000255|HAMAP-Rule:MF_00567}; OrderedLocusNames=EcHS_A0804;
OS   Escherichia coli O9:H4 (strain HS).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=331112;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=HS;
RX   PubMed=18676672; DOI=10.1128/jb.00619-08;
RA   Rasko D.A., Rosovitz M.J., Myers G.S.A., Mongodin E.F., Fricke W.F.,
RA   Gajer P., Crabtree J., Sebaihia M., Thomson N.R., Chaudhuri R.,
RA   Henderson I.R., Sperandio V., Ravel J.;
RT   "The pangenome structure of Escherichia coli: comparative genomic analysis
RT   of E. coli commensal and pathogenic isolates.";
RL   J. Bacteriol. 190:6881-6893(2008).
CC   -!- FUNCTION: Catalyzes the condensation of iminoaspartate with
CC       dihydroxyacetone phosphate to form quinolinate. {ECO:0000255|HAMAP-
CC       Rule:MF_00567}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=dihydroxyacetone phosphate + iminosuccinate = H(+) + 2 H2O +
CC         phosphate + quinolinate; Xref=Rhea:RHEA:25888, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:29959, ChEBI:CHEBI:43474,
CC         ChEBI:CHEBI:57642, ChEBI:CHEBI:77875; EC=2.5.1.72;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00567};
CC       PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:25889;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00567};
CC   -!- COFACTOR:
CC       Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00567};
CC       Note=Binds 1 [4Fe-4S] cluster per subunit. {ECO:0000255|HAMAP-
CC       Rule:MF_00567};
CC   -!- PATHWAY: Cofactor biosynthesis; NAD(+) biosynthesis; quinolinate from
CC       iminoaspartate: step 1/1. {ECO:0000255|HAMAP-Rule:MF_00567}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00567}.
CC   -!- SIMILARITY: Belongs to the quinolinate synthase family. Type 1
CC       subfamily. {ECO:0000255|HAMAP-Rule:MF_00567}.
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DR   EMBL; CP000802; ABV05160.1; -; Genomic_DNA.
DR   RefSeq; WP_000115293.1; NC_009800.1.
DR   AlphaFoldDB; A7ZY06; -.
DR   SMR; A7ZY06; -.
DR   KEGG; ecx:EcHS_A0804; -.
DR   HOGENOM; CLU_047382_1_0_6; -.
DR   OMA; CFCSTMN; -.
DR   UniPathway; UPA00253; UER00327.
DR   Proteomes; UP000001123; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-KW.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0008987; F:quinolinate synthetase A activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0009435; P:NAD biosynthetic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.40.50.10800; -; 3.
DR   HAMAP; MF_00567; NadA_type1; 1.
DR   InterPro; IPR003473; NadA.
DR   InterPro; IPR036094; NadA_sf.
DR   InterPro; IPR023513; Quinolinate_synth_A_type1.
DR   PANTHER; PTHR30573; PTHR30573; 1.
DR   Pfam; PF02445; NadA; 1.
DR   SUPFAM; SSF142754; SSF142754; 1.
DR   TIGRFAMs; TIGR00550; nadA; 1.
PE   3: Inferred from homology;
KW   4Fe-4S; Cytoplasm; Iron; Iron-sulfur; Metal-binding;
KW   Pyridine nucleotide biosynthesis; Transferase.
FT   CHAIN           1..347
FT                   /note="Quinolinate synthase"
FT                   /id="PRO_1000061142"
FT   BINDING         47
FT                   /ligand="iminosuccinate"
FT                   /ligand_id="ChEBI:CHEBI:77875"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00567"
FT   BINDING         68
FT                   /ligand="iminosuccinate"
FT                   /ligand_id="ChEBI:CHEBI:77875"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00567"
FT   BINDING         113
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00567"
FT   BINDING         139..141
FT                   /ligand="iminosuccinate"
FT                   /ligand_id="ChEBI:CHEBI:77875"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00567"
FT   BINDING         156
FT                   /ligand="iminosuccinate"
FT                   /ligand_id="ChEBI:CHEBI:77875"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00567"
FT   BINDING         200
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00567"
FT   BINDING         226..228
FT                   /ligand="iminosuccinate"
FT                   /ligand_id="ChEBI:CHEBI:77875"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00567"
FT   BINDING         243
FT                   /ligand="iminosuccinate"
FT                   /ligand_id="ChEBI:CHEBI:77875"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00567"
FT   BINDING         297
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00567"
SQ   SEQUENCE   347 AA;  38254 MW;  81104F7621ED4EE0 CRC64;
     MSVMFDPDTA IYPFPPKPTP LSIDEKAYYR EKIKRLLKER NAVMVAHYYT DPEIQQLAEE
     TGGCISDSLE MARFGAKHPA STLLVAGVRF MGETAKILSP EKTILMPTLQ AECSLDLGCP
     VEEFNAFCDA HPDRTVVVYA NTSAAVKARA DWVVTSSIAV ELIDHLDSLG EKIIWAPDKH
     LGRYVQKQTG GDILCWQGAC IVHDEFKTQA LTRLQEEYPD AAILVHPESP QAIVDMADAV
     GSTSQLIAAA KTLPHQRLIV ATDRGIFYKM QQAVPDKELL EAPTAGEGAT CRSCAHCPWM
     AMNGLQAIAK ALEQEGSNHE VHVEERLRER ALVPLNRMLD FAATLRG