A0A4D6YG36 · A0A4D6YG36_9GAMM
- ProteinBifunctional aspartokinase/homoserine dehydrogenase
- StatusUniProtKB unreviewed (TrEMBL)
- Amino acids815 (go to sequence)
- Protein existenceInferred from homology
- Annotation score4/5
Function
function
Bifunctional aspartate kinase and homoserine dehydrogenase that catalyzes the first and the third steps toward the synthesis of lysine, methionine and threonine from aspartate.
Catalytic activity
- L-aspartate + ATP = 4-phospho-L-aspartate + ADPThis reaction proceeds in the forward direction.
Cofactor
Pathway
Amino-acid biosynthesis; L-lysine biosynthesis via DAP pathway; (S)-tetrahydrodipicolinate from L-aspartate: step 1/4.
Amino-acid biosynthesis; L-methionine biosynthesis via de novo pathway; L-homoserine from L-aspartate: step 1/3.
Amino-acid biosynthesis; L-methionine biosynthesis via de novo pathway; L-homoserine from L-aspartate: step 3/3.
Amino-acid biosynthesis; L-threonine biosynthesis; L-threonine from L-aspartate: step 1/5.
Amino-acid biosynthesis; L-threonine biosynthesis; L-threonine from L-aspartate: step 3/5.
GO annotations
Aspect | Term | |
---|---|---|
Molecular Function | aspartate kinase activity | |
Molecular Function | ATP binding | |
Molecular Function | homoserine dehydrogenase activity | |
Molecular Function | metal ion binding | |
Molecular Function | NADP binding | |
Biological Process | homoserine biosynthetic process | |
Biological Process | lysine biosynthetic process via diaminopimelate | |
Biological Process | phosphorylation | |
Biological Process | threonine biosynthetic process |
Keywords
- Molecular function
- Biological process
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended nameBifunctional aspartokinase/homoserine dehydrogenase
Including 2 domains:
- Recommended nameAspartokinase
- EC number
- Recommended nameHomoserine dehydrogenase
- EC number
Gene names
Organism names
- Strain
- Taxonomic lineageBacteria > Pseudomonadota > Gammaproteobacteria > Enterobacterales > Erwiniaceae > Buchnera
Accessions
- Primary accessionA0A4D6YG36
Proteomes
Interaction
Subunit
Homotetramer.
Structure
Family & Domains
Features
Showing features for domain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Domain | 2-284 | Aspartate/glutamate/uridylate kinase | ||||
Sequence: RILKFGGTSLSNSKKFLEVSKIIEKKFKNDNIAIVLSAPAKITNYLEQINKNITFNKNSKNIFQKIETIFYELSNGINKQQNNFPNNNINKYITNTFDDLKNKIKKIKLLNDNSKKLFSEIISKGEIISIKIMQQLLISKNYLTFYIDPIKNIVTNNDYFESDVNISKTKKNIQKIKIPNKHIILMPGFIAGNKNHELVTLGRNGSDYSAAILAVCLNAKVCEIWTDVDGIYTSDPKIIPTAKLLKSISYQEAIELSSFGAKILHPKTILPLFKSNIKCIIKN | ||||||
Domain | 472-606 | Aspartate/homoserine dehydrogenase NAD-binding | ||||
Sequence: GIGGVAKALLKQIQKQSQILKNKNIIFKICSISNSKKMLINLDGINLITWKEQFHTTHKKFCIKKIIKYAKNISLFNPVIIDCTASQEIANFYYDILKNNINIVTPNKKANTNTWKEYANIRNIAIKKNKKFFYE | ||||||
Domain | 614-811 | Homoserine dehydrogenase catalytic | ||||
Sequence: PIIKTLKNLFDSGDELISFEGILSGSLSFIFGKLEEGLSISEATIMAKKLGFTEPNPKDDLSGLDVARKLLILARESGYKLELEDIKIIPILPKYMLKIKDKNTFISELSKLNEYFYNKIKLAKKYKKVLRFIGTIKKGGLCKVELTEVDKKNPLYNVKNGENALIIYSKYYQPIPLVLKGYGAGNNVTAAGIFSDLL |
Sequence similarities
In the C-terminal section; belongs to the homoserine dehydrogenase family.
In the N-terminal section; belongs to the aspartokinase family.
Phylogenomic databases
Family and domain databases
Sequence
- Sequence statusComplete
- Length815
- Mass (Da)93,278
- Last updated2019-07-31 v1
- Checksum91A0BC36181FD008
Keywords
- Technical term