Q89AB8 · DHAS_BUCBP
- ProteinAspartate-semialdehyde dehydrogenase
- Geneasd
- StatusUniProtKB reviewed (Swiss-Prot)
- Amino acids369 (go to sequence)
- Protein existenceInferred from homology
- Annotation score4/5
Function
function
Catalyzes the NADPH-dependent formation of L-aspartate-semialdehyde (L-ASA) by the reductive dephosphorylation of L-aspartyl-4-phosphate.
Catalytic activity
- L-aspartate 4-semialdehyde + NADP+ + phosphate = 4-phospho-L-aspartate + H+ + NADPH
Pathway
Amino-acid biosynthesis; L-lysine biosynthesis via DAP pathway; (S)-tetrahydrodipicolinate from L-aspartate: step 2/4.
Amino-acid biosynthesis; L-methionine biosynthesis via de novo pathway; L-homoserine from L-aspartate: step 2/3.
Amino-acid biosynthesis; L-threonine biosynthesis; L-threonine from L-aspartate: step 2/5.
Features
Showing features for binding site, active site.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Binding site | 11-14 | NADP+ (UniProtKB | ChEBI) | ||||
Sequence: RGMV | ||||||
Binding site | 38-39 | NADP+ (UniProtKB | ChEBI) | ||||
Sequence: TS | ||||||
Binding site | 75 | NADP+ (UniProtKB | ChEBI) | ||||
Sequence: Q | ||||||
Binding site | 104 | phosphate (UniProtKB | ChEBI) | ||||
Sequence: R | ||||||
Active site | 137 | Acyl-thioester intermediate | ||||
Sequence: C | ||||||
Binding site | 164 | substrate | ||||
Sequence: Q | ||||||
Binding site | 167-168 | NADP+ (UniProtKB | ChEBI) | ||||
Sequence: SG | ||||||
Binding site | 195 | NADP+ (UniProtKB | ChEBI) | ||||
Sequence: P | ||||||
Binding site | 243 | substrate | ||||
Sequence: E | ||||||
Binding site | 246 | phosphate (UniProtKB | ChEBI) | ||||
Sequence: K | ||||||
Binding site | 269 | substrate | ||||
Sequence: R | ||||||
Active site | 276 | Proton acceptor | ||||
Sequence: H | ||||||
Binding site | 352 | NADP+ (UniProtKB | ChEBI) | ||||
Sequence: Q |
GO annotations
Aspect | Term | |
---|---|---|
Molecular Function | aspartate-semialdehyde dehydrogenase activity | |
Molecular Function | NAD binding | |
Molecular Function | NADP binding | |
Molecular Function | protein dimerization activity | |
Biological Process | 'de novo' L-methionine biosynthetic process | |
Biological Process | diaminopimelate biosynthetic process | |
Biological Process | isoleucine biosynthetic process | |
Biological Process | lysine biosynthetic process via diaminopimelate | |
Biological Process | threonine biosynthetic process |
Keywords
- Molecular function
- Biological process
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended nameAspartate-semialdehyde dehydrogenase
- EC number
- Short namesASA dehydrogenase ; ASADH
- Alternative names
Gene names
Organism names
- Strain
- Taxonomic lineageBacteria > Pseudomonadota > Gammaproteobacteria > Enterobacterales > Erwiniaceae > Buchnera
Accessions
- Primary accessionQ89AB8
Proteomes
PTM/Processing
Features
Showing features for chain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Chain | PRO_0000141365 | 1-369 | Aspartate-semialdehyde dehydrogenase | |||
Sequence: MKKNIGLIGWRGMVGSVLVERMICENDFFHFNPIFFSTSQKNSKGPTINGEYFGVLKDAYDLDILKELDILISCQGSDYTNKVYFKLRDIGWNGYWIDAASVLRMNQDTVIILDPVNSNTIRESIDSGFKTFVGGNCTVSLMLMSLGGLFSEKLIEWITVSTYQAASGSGAKYIEELLMQMGSMYTEASGYLGNPAHSILNIEKKVRNLSCSDKFPKKNFKVPLAGSLIPWIDKKMRNGQSREEWKIQAETNKILSSNKDILIDGLCVRIGALRCHSQSFVIKLKKDISIPEIEQILLNHNSWTKVIPNRKHDTMTELTPAAVTGTLNTPVGRLRKLNIGQKYLSAFTVGDQLLWGASEPLRRMLKFLI |
Interaction
Structure
Sequence
- Sequence statusComplete
- Length369
- Mass (Da)41,494
- Last updated2003-06-01 v1
- Checksum8DDBA2BADF6C7516
Keywords
- Technical term
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
AE016826 EMBL· GenBank· DDBJ | AAO27110.1 EMBL· GenBank· DDBJ | Genomic DNA |