NADB_SYNY3
ID NADB_SYNY3 Reviewed; 553 AA.
AC P74562;
DT 01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT 01-FEB-1997, sequence version 1.
DT 03-AUG-2022, entry version 128.
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=sll0631;
OS Synechocystis sp. (strain PCC 6803 / Kazusa).
OC Bacteria; Cyanobacteria; Synechococcales; Merismopediaceae; Synechocystis;
OC unclassified Synechocystis.
OX NCBI_TaxID=1111708;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=PCC 6803 / Kazusa;
RX PubMed=8905231; DOI=10.1093/dnares/3.3.109;
RA Kaneko T., Sato S., Kotani H., Tanaka A., Asamizu E., Nakamura Y.,
RA Miyajima N., Hirosawa M., Sugiura M., Sasamoto S., Kimura T., Hosouchi T.,
RA Matsuno A., Muraki A., Nakazaki N., Naruo K., Okumura S., Shimpo S.,
RA Takeuchi C., Wada T., Watanabe A., Yamada M., Yasuda M., Tabata S.;
RT "Sequence analysis of the genome of the unicellular cyanobacterium
RT Synechocystis sp. strain PCC6803. II. Sequence determination of the entire
RT genome and assignment of potential protein-coding regions.";
RL DNA Res. 3:109-136(1996).
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; BA000022; BAA18669.1; -; Genomic_DNA.
DR PIR; S76757; S76757.
DR AlphaFoldDB; P74562; -.
DR SMR; P74562; -.
DR IntAct; P74562; 6.
DR STRING; 1148.1653758; -.
DR PaxDb; P74562; -.
DR EnsemblBacteria; BAA18669; BAA18669; BAA18669.
DR KEGG; syn:sll0631; -.
DR eggNOG; COG0029; Bacteria.
DR InParanoid; P74562; -.
DR OMA; HCVQWLI; -.
DR PhylomeDB; P74562; -.
DR UniPathway; UPA00253; UER00326.
DR Proteomes; UP000001425; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0008734; F:L-aspartate oxidase activity; IBA:GO_Central.
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:0034628; P:'de novo' NAD biosynthetic process from aspartate; IBA:GO_Central.
DR Gene3D; 3.50.50.60; -; 1.
DR Gene3D; 3.90.700.10; -; 1.
DR InterPro; IPR003953; FAD-binding_2.
DR InterPro; IPR036188; FAD/NAD-bd_sf.
DR InterPro; IPR037099; Fum_R/Succ_DH_flav-like_C_sf.
DR InterPro; IPR015939; Fum_Rdtase/Succ_DH_flav-like_C.
DR InterPro; IPR005288; NadB.
DR InterPro; IPR027477; Succ_DH/fumarate_Rdtase_cat_sf.
DR PANTHER; PTHR42716; PTHR42716; 1.
DR Pfam; PF00890; FAD_binding_2; 1.
DR Pfam; PF02910; Succ_DH_flav_C; 1.
DR SUPFAM; SSF46977; SSF46977; 1.
DR SUPFAM; SSF51905; SSF51905; 1.
DR SUPFAM; SSF56425; SSF56425; 1.
DR TIGRFAMs; TIGR00551; nadB; 1.
PE 3: Inferred from homology;
KW Cytoplasm; FAD; Flavoprotein; Nucleotide-binding; Oxidoreductase;
KW Pyridine nucleotide biosynthesis; Reference proteome.
FT CHAIN 1..553
FT /note="L-aspartate oxidase"
FT /id="PRO_0000184402"
FT ACT_SITE 275
FT /note="Proton donor/acceptor"
FT /evidence="ECO:0000250|UniProtKB:P10902"
FT BINDING 13..16
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250|UniProtKB:P10902"
FT BINDING 35
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250|UniProtKB:P10902"
FT BINDING 42..49
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250|UniProtKB:P10902"
FT BINDING 208
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250|UniProtKB:P10902"
FT BINDING 364
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250|UniProtKB:P10902"
FT BINDING 380..381
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000250|UniProtKB:P10902"
FT SITE 113
FT /note="Important in orienting the L-aspartate substrate"
FT /evidence="ECO:0000250|UniProtKB:P10902"
SQ SEQUENCE 553 AA; 60498 MW; 0ABCE7366B9940CC CRC64;
MGANQFDVVV VGSGAAGLYA CLCLPGHYRV ALVTKAELKT GASDWAQGGI AAAIAPTDSP
QSHYEDTLAA GAGLCDGEAV DFLVNHAPQA IAELVQFGVS FDRHGQHLAL TLEAAHSQPR
VLHAADTTGR AIVSTLMGQV QARPNVEIFS QAIALSLNIE PTTGHCRGIQ VFVNQTIETF
HSRAVLLATG GGGQVFAQTT NPKVSTGDGI ALAWRSGAQV RDLEFFQFHP TALTKPGVPH
FLISEAVRGE GAHLLDRQGK RFAFDYHPRG ELAPRDVVSR AIFQHLANTE KDPTQATVFL
DLSPIEPERI QRRFPNIIRR CLHWGVDIFR EPIPVAPAAH YWMGGITTDI NCQTTIPGLY
ALGETASTGV HGANRLASNS LLECIVFASQ LRNLSLPPLA SSDSNVNQSI KEIRLDTTND
LALLNHWRSE LPRLMWQTAG ICRQAETLQM AIAKLEQWQE QWQQLSSSKL LAHLPEDQKI
SLSGPGLNEF MQLWAETHNL LDIAQLILTS ALFREESRGG HYRLDCPDTK REWQSHTVIE
GTRVFLQPSQ SQD
