ID NADB_CLOPE Reviewed; 439 AA.
AC Q8XNE2;
DT 30-AUG-2002, integrated into UniProtKB/Swiss-Prot.
DT 01-MAR-2002, sequence version 1.
DT 27-MAR-2024, entry version 110.
DE RecName: Full=L-aspartate oxidase {ECO:0000250|UniProtKB:P10902};
DE Short=LASPO {ECO:0000250|UniProtKB:P10902};
DE EC=1.4.3.16 {ECO:0000250|UniProtKB:P10902};
DE AltName: Full=Quinolinate synthase B;
GN Name=nadB; OrderedLocusNames=CPE0395;
OS Clostridium perfringens (strain 13 / Type A).
OC Bacteria; Bacillota; Clostridia; Eubacteriales; Clostridiaceae;
OC Clostridium.
OX NCBI_TaxID=195102;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=13 / Type A;
RX PubMed=11792842; DOI=10.1073/pnas.022493799;
RA Shimizu T., Ohtani K., Hirakawa H., Ohshima K., Yamashita A., Shiba T.,
RA Ogasawara N., Hattori M., Kuhara S., Hayashi H.;
RT "Complete genome sequence of Clostridium perfringens, an anaerobic flesh-
RT eater.";
RL Proc. Natl. Acad. Sci. U.S.A. 99:996-1001(2002).
CC -!- FUNCTION: Catalyzes the oxidation of L-aspartate to iminoaspartate, the
CC first step in the de novo biosynthesis of NAD(+).
CC {ECO:0000250|UniProtKB:P10902}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=L-aspartate + O2 = H2O2 + iminosuccinate;
CC Xref=Rhea:RHEA:25876, ChEBI:CHEBI:15379, ChEBI:CHEBI:16240,
CC ChEBI:CHEBI:29991, ChEBI:CHEBI:77875; EC=1.4.3.16;
CC Evidence={ECO:0000250|UniProtKB:P10902};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:25877;
CC Evidence={ECO:0000250|UniProtKB:P10902};
CC -!- COFACTOR:
CC Name=FAD; Xref=ChEBI:CHEBI:57692;
CC Evidence={ECO:0000250|UniProtKB:P10902};
CC Note=Binds 1 FAD per subunit. {ECO:0000250|UniProtKB:P10902};
CC -!- PATHWAY: Cofactor biosynthesis; NAD(+) biosynthesis; iminoaspartate
CC from L-aspartate (oxidase route): step 1/1.
CC {ECO:0000250|UniProtKB:P10902}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250|UniProtKB:P10902}.
CC -!- SIMILARITY: Belongs to the FAD-dependent oxidoreductase 2 family. NadB
CC subfamily. {ECO:0000305}.
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DR EMBL; BA000016; BAB80101.1; -; Genomic_DNA.
DR RefSeq; WP_003471363.1; NC_003366.1.
DR AlphaFoldDB; Q8XNE2; -.
DR SMR; Q8XNE2; -.
DR STRING; 195102.gene:10489651; -.
DR KEGG; cpe:CPE0395; -.
DR HOGENOM; CLU_014312_3_1_9; -.
DR UniPathway; UPA00253; UER00326.
DR Proteomes; UP000000818; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0008734; F:L-aspartate oxidase activity; IEA:UniProtKB-EC.
DR GO; GO:0044318; F:L-aspartate:fumarate oxidoreductase activity; IEA:UniProtKB-EC.
DR GO; GO:0000166; F:nucleotide binding; IEA:UniProtKB-KW.
DR GO; GO:0009435; P:NAD biosynthetic process; IEA:UniProtKB-UniPathway.
DR Gene3D; 3.50.50.60; FAD/NAD(P)-binding domain; 1.
DR Gene3D; 3.90.700.10; Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain; 1.
DR InterPro; IPR003953; FAD-binding_2.
DR InterPro; IPR036188; FAD/NAD-bd_sf.
DR InterPro; IPR005288; NadB.
DR InterPro; IPR027477; Succ_DH/fumarate_Rdtase_cat_sf.
DR PANTHER; PTHR42716; L-ASPARTATE OXIDASE; 1.
DR PANTHER; PTHR42716:SF2; L-ASPARTATE OXIDASE, CHLOROPLASTIC; 1.
DR Pfam; PF00890; FAD_binding_2; 1.
DR PRINTS; PR00368; FADPNR.
DR SUPFAM; SSF51905; FAD/NAD(P)-binding domain; 1.
DR SUPFAM; SSF56425; Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain; 1.
PE 3: Inferred from homology;
KW Cytoplasm; FAD; Flavoprotein; Nucleotide-binding; Oxidoreductase;
KW Pyridine nucleotide biosynthesis; Reference proteome.
FT CHAIN 1..439
FT /note="L-aspartate oxidase"
FT /id="PRO_0000184383"
FT ACT_SITE 267
FT /note="Proton donor/acceptor"
FT /evidence="ECO:0000250|UniProtKB:P10902"
FT BINDING 12..15
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250|UniProtKB:P10902"
FT BINDING 34
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250|UniProtKB:P10902"
FT BINDING 41..48
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250|UniProtKB:P10902"
FT BINDING 204
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250|UniProtKB:P10902"
FT BINDING 352
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250|UniProtKB:P10902"
FT BINDING 368..369
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250|UniProtKB:P10902"
FT SITE 111
FT /note="Important in orienting the L-aspartate substrate"
FT /evidence="ECO:0000250|UniProtKB:P10902"
SQ SEQUENCE 439 AA; 49236 MW; D89A50E494E5F5C7 CRC64;
MKRVADVLIV GSGVAGLYAS LNLREDLEII MVSKKSVNLC NSSLAQGGIA VARGKEDFQS
FIEDTLKAGK YENNIDSVRV LVEESMDNIN KLIDLGANFE KDENGVLFTK EGAHEINRIV
YHKDITGKHV EDILLENVKR RKNIKIIEDC EMVDIYHRGN RCIGALFNKD GQDLSIYAKV
VILATGGIGG LFKKSTNERI ITGDSIGVAI RNNIEIKDLS YIQIHPTAFF SKKSEEKRFL
ISESVRGEGG KLLNCNGERF VDELLPRDIV SKKIYEEMKK TNSNNVFLDV SFMEKSFLQN
RFPNIYNKCL EEGIDISKEP IPVAPAQHYF MGGIKVDLNG KTSMENLYAF GETSCTGVHG
ANRLASNSLL EALVFSRRGA LEINSYIDNL ELIIEERECE DLDKYRLLNR KILIDEICRL
RGDIKDELVT CGGECKKSS
//
