Q2QTL0 · NADA_ORYSJ
- ProteinQuinolinate synthase, chloroplastic
- GeneQS
- StatusUniProtKB reviewed (Swiss-Prot)
- Amino acids711 (go to sequence)
- Protein existenceInferred from homology
- Annotation score4/5
Function
function
Catalyzes the condensation of iminoaspartate with dihydroxyacetone phosphate to form quinolinate.
Catalytic activity
- dihydroxyacetone phosphate + iminosuccinate = H+ + 2 H2O + phosphate + quinolinate
Cofactor
Note: Binds 1 [4Fe-4S] cluster per subunit.
Pathway
Cofactor biosynthesis; NAD+ biosynthesis; quinolinate from iminoaspartate: step 1/1.
Features
Showing features for active site, binding site.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Active site | 114 | Cysteine persulfide intermediate | ||||
Sequence: C | ||||||
Binding site | 263 | iminosuccinate (UniProtKB | ChEBI) | ||||
Sequence: H | ||||||
Binding site | 289 | iminosuccinate (UniProtKB | ChEBI) | ||||
Sequence: S | ||||||
Binding site | 343 | [4Fe-4S] cluster (UniProtKB | ChEBI) | ||||
Sequence: C | ||||||
Binding site | 372-374 | iminosuccinate (UniProtKB | ChEBI) | ||||
Sequence: YIN | ||||||
Binding site | 394 | iminosuccinate (UniProtKB | ChEBI) | ||||
Sequence: S | ||||||
Binding site | 467 | [4Fe-4S] cluster (UniProtKB | ChEBI) | ||||
Sequence: C | ||||||
Binding site | 493-495 | iminosuccinate (UniProtKB | ChEBI) | ||||
Sequence: HFE | ||||||
Binding site | 518 | iminosuccinate (UniProtKB | ChEBI) | ||||
Sequence: T | ||||||
Binding site | 631 | [4Fe-4S] cluster (UniProtKB | ChEBI) | ||||
Sequence: C |
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | chloroplast | |
Molecular Function | 4 iron, 4 sulfur cluster binding | |
Molecular Function | enzyme activator activity | |
Molecular Function | metal ion binding | |
Molecular Function | protein homodimerization activity | |
Molecular Function | quinolinate synthetase A activity | |
Biological Process | 'de novo' NAD biosynthetic process from aspartate | |
Biological Process | aerobic respiration | |
Biological Process | positive regulation of sulfur metabolic process |
Keywords
- Molecular function
- Biological process
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended nameQuinolinate synthase, chloroplastic
- EC number
Gene names
Organism names
- Strain
- Taxonomic lineageEukaryota > Viridiplantae > Streptophyta > Embryophyta > Tracheophyta > Spermatophyta > Magnoliopsida > Liliopsida > Poales > Poaceae > BOP clade > Oryzoideae > Oryzeae > Oryzinae > Oryza > Oryza sativa
Accessions
- Primary accessionQ2QTL0
- Secondary accessions
Proteomes
Genome annotation databases
Subcellular Location
PTM/Processing
Features
Showing features for transit peptide, chain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Transit peptide | 1-41 | Chloroplast | ||||
Sequence: MDVSSLAAAAPSLVAPPLHHKPHLAFPPHHPSPARGSIGVR | ||||||
Chain | PRO_0000423477 | 42-711 | Quinolinate synthase, chloroplastic | |||
Sequence: CAHSPSPHPLRPSAATADEEVSLPPSLRVSRLAEEFRVSPDAADRARRLLARAAALPRLGEADRVAANRVMGCVAQVWLVGRCDGAGRMRFAADSDSELSRGYCACLVSALDGARPEEVLDVDPADLAPLGGAAAGTGARSRASTWHNVLIGMQKRARAAIAAREGRPAGEPFPSLIIGRDGAIRAQGTYAEAQAMFLSPNESKTSELVKSLREKKIGIVAHFYMDPEVQGILTASKKHWPHIHISDSLVMADSAVKMAEAGCEYITVLGVDFMSENVRAILDQAGYSKVGVYRMSSDQIGCSLADAASSSAYTHFLKEASRSPPSLHVIYINTSLETKAHAHELVPTITCTSSNVVATILQAFAQIPGLNVWYGPDSYMGANIADLFQRMAVMSDEEIAEVHPSHNKKSINALLPRLHYYQDGNCIVHDMFGHEVVDKIKEQYCDAFLTAHFEVPGEMFSLSMEAKTRGMGVVGSTQNILDFIKNHLMEALDRNIDDHLQFVLGTESGMITSIVAAVRELFDSYKTSQQSANIEVEIVFPVSSDAVSNTSVNGSHHLDSSTVTDLDNVSVVPGVSSGEGCSIHGGCASCPYMKMNSLRSLLKVCHQLPDRDNRLVAYQASRFNAKTPLGKLVAEVGCEPILHMRHFQATKRLPDKLVHHVIHGKGEPTS |
Proteomic databases
Interaction
Structure
Family & Domains
Features
Showing features for region.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Region | 17-63 | Disordered | ||||
Sequence: PLHHKPHLAFPPHHPSPARGSIGVRCAHSPSPHPLRPSAATADEEVS |
Sequence similarities
Belongs to the quinolinate synthase family. Type 1 subfamily.
Keywords
- Domain
Phylogenomic databases
Family and domain databases
Sequence
- Sequence statusComplete
- Sequence processingThe displayed sequence is further processed into a mature form.
- Length711
- Mass (Da)76,683
- Last updated2013-09-18 v2
- ChecksumED3626965A2A6A3C
Sequence caution
Keywords
- Technical term
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
DP000011 EMBL· GenBank· DDBJ | ABA97161.1 EMBL· GenBank· DDBJ | Genomic DNA | Sequence problems. | |
DP000011 EMBL· GenBank· DDBJ | ABG21971.1 EMBL· GenBank· DDBJ | Genomic DNA | Sequence problems. | |
AP008218 EMBL· GenBank· DDBJ | - | Genomic DNA | No translation available. | |
AP014968 EMBL· GenBank· DDBJ | BAT16777.1 EMBL· GenBank· DDBJ | Genomic DNA |