NADA_HELPH
ID NADA_HELPH Reviewed; 336 AA.
AC Q1CRQ2;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 11-JUL-2006, sequence version 1.
DT 03-AUG-2022, entry version 93.
DE RecName: Full=Quinolinate synthase {ECO:0000255|HAMAP-Rule:MF_00569};
DE EC=2.5.1.72 {ECO:0000255|HAMAP-Rule:MF_00569};
GN Name=nadA {ECO:0000255|HAMAP-Rule:MF_00569}; OrderedLocusNames=HPAG1_1303;
OS Helicobacter pylori (strain HPAG1).
OC Bacteria; Proteobacteria; Epsilonproteobacteria; Campylobacterales;
OC Helicobacteraceae; Helicobacter.
OX NCBI_TaxID=357544;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=HPAG1;
RX PubMed=16788065; DOI=10.1073/pnas.0603784103;
RA Oh J.D., Kling-Baeckhed H., Giannakis M., Xu J., Fulton R.S., Fulton L.A.,
RA Cordum H.S., Wang C., Elliott G., Edwards J., Mardis E.R., Engstrand L.G.,
RA Gordon J.I.;
RT "The complete genome sequence of a chronic atrophic gastritis Helicobacter
RT pylori strain: evolution during disease progression.";
RL Proc. Natl. Acad. Sci. U.S.A. 103:9999-10004(2006).
CC -!- FUNCTION: Catalyzes the condensation of iminoaspartate with
CC dihydroxyacetone phosphate to form quinolinate. {ECO:0000255|HAMAP-
CC Rule:MF_00569}.
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_00569};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:25889;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00569};
CC -!- COFACTOR:
CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00569};
CC Note=Binds 1 [4Fe-4S] cluster per subunit. {ECO:0000255|HAMAP-
CC Rule:MF_00569};
CC -!- PATHWAY: Cofactor biosynthesis; NAD(+) biosynthesis; quinolinate from
CC iminoaspartate: step 1/1. {ECO:0000255|HAMAP-Rule:MF_00569}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00569}.
CC -!- SIMILARITY: Belongs to the quinolinate synthase family. Type 3
CC subfamily. {ECO:0000255|HAMAP-Rule:MF_00569}.
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DR EMBL; CP000241; ABF85370.1; -; Genomic_DNA.
DR RefSeq; WP_001141832.1; NC_008086.1.
DR AlphaFoldDB; Q1CRQ2; -.
DR SMR; Q1CRQ2; -.
DR PRIDE; Q1CRQ2; -.
DR EnsemblBacteria; ABF85370; ABF85370; HPAG1_1303.
DR KEGG; hpa:HPAG1_1303; -.
DR HOGENOM; CLU_047382_2_0_7; -.
DR OMA; FFLPDKC; -.
DR OrthoDB; 613347at2; -.
DR UniPathway; UPA00253; UER00327.
DR Proteomes; UP000008835; 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_00569; NadA_type3; 1.
DR InterPro; IPR003473; NadA.
DR InterPro; IPR036094; NadA_sf.
DR InterPro; IPR023515; Quinolinate_synth_A_type3.
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..336
FT /note="Quinolinate synthase"
FT /id="PRO_1000024994"
FT BINDING 25
FT /ligand="iminosuccinate"
FT /ligand_id="ChEBI:CHEBI:77875"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00569"
FT BINDING 42
FT /ligand="iminosuccinate"
FT /ligand_id="ChEBI:CHEBI:77875"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00569"
FT BINDING 86
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00569"
FT BINDING 117..119
FT /ligand="iminosuccinate"
FT /ligand_id="ChEBI:CHEBI:77875"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00569"
FT BINDING 138
FT /ligand="iminosuccinate"
FT /ligand_id="ChEBI:CHEBI:77875"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00569"
FT BINDING 198
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00569"
FT BINDING 224..226
FT /ligand="iminosuccinate"
FT /ligand_id="ChEBI:CHEBI:77875"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00569"
FT BINDING 241
FT /ligand="iminosuccinate"
FT /ligand_id="ChEBI:CHEBI:77875"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00569"
FT BINDING 288
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00569"
SQ SEQUENCE 336 AA; 37769 MW; F7E847D8433506F9 CRC64;
MPTDNDLKTS IVELLHDLDA LLVAHFYQKD EIVELAHHTG DSLELAKIAS QSDKNLIVFC
GVHFMGESVK ALAFEKQVIM PKLSCCSMAR MIDSHYYDRS VHLLKECGVK EFYPITYINS
NAEVKAKVAK DGGVVCTSRN ASKIFNHALK QNKKIFFLPD KCLGENLALE NGLKSAILGV
NSPEEIKNAD VVCYNGFCSV HQLFKLEDIE FYRQKYPDIL IAVHPECEPS VVSNADFSGS
TSQIIEFVEK LSPNQKVAIG TESHLVNRLK AKRHHQNTFI LSSTLAFCPT MNETTLKDLF
EVLKAYKNHR AYNAVELKDE VAHWAKLALT KMMELS
