homoserine dehydrogenase (NADPH)
function
biosynthesis of methionine and threonine
product
homoserine dehydrogenase (NADPH)
Genomic Context
categories
[category|SW 2|Metabolism] → [category|SW 2.3|Amino acid/ nitrogen metabolism] → [category|SW 2.3.1|Biosynthesis/ acquisition of amino acids] → [category|SW 2.3.1.10|Biosynthesis/ acquisition of methionine/ S-adenosylmethionine][category|SW 2|Metabolism] → [category|SW 2.3|Amino acid/ nitrogen metabolism] → [category|SW 2.3.1|Biosynthesis/ acquisition of amino acids] → [category|SW 2.3.1.6|Biosynthesis/ acquisition of lysine/ threonine]Gene
Coordinates
3,314,828 3,316,129
The protein
Catalyzed reaction/ biological activity
L-aspartate 4-semialdehyde + NAD(P)H+H+ --> L-homoserine + NAD(P)+ [pubmed|6786715]Protein family
Homoserine dehydrogenase family (single member, according to UniProt)[SW|Domains]
[SW|ACT domain] (aa 350-426) (according to UniProt)[SW|Cofactors]
NADPH [pubmed|6786715]Structure
[PDB|2EJW] (from ''Thermus thermophilus hb8'', 37% identity, 57% similarity)additional information
belongs to the 100 [SW|most abundant proteins] [PubMed|15378759]Expression and Regulation
Operons
genes
[gene|0F40291BB10DB6D7DFD94B9C7D700F4410C4EE69|yutH]-[gene|11421D5BD3AB6C205DDA0864F878E2B04340033F|hom]-[gene|4A839F8A53DF75DF01FE410EBD3361759C3B1C86|thrC]-[gene|290302BA8A4E44C62AE3071C1F7DE18B20605607|thrB]
description
[Pubmed|22383849]
regulation
expressed during [SW|sporulation] [Pubmed|22383849]view in new tabgenes
[gene|11421D5BD3AB6C205DDA0864F878E2B04340033F|hom]-[gene|4A839F8A53DF75DF01FE410EBD3361759C3B1C86|thrC]-[gene|290302BA8A4E44C62AE3071C1F7DE18B20605607|thrB]
description
[Pubmed|12107147]
regulatory mechanism
[protein|90ACE0DECA58D3C1A55E135120F7A0C1C920571C|CodY]: repression, [Pubmed|24163341], in [regulon|90ACE0DECA58D3C1A55E135120F7A0C1C920571C|CodY regulon][protein|857EF1AC54DEA0690C01B7F8CEFFD16312C58F20|TnrA]: repression, [Pubmed|25755103], in [regulon|857EF1AC54DEA0690C01B7F8CEFFD16312C58F20|TnrA regulon][protein|A4B7CF7A1C704C750AFAD97A43AF975260935083|ThrR]: repression, [Pubmed|27260660], in [regulon|A4B7CF7A1C704C750AFAD97A43AF975260935083|ThrR regulon]regulation
expressed in the presence of lysine or cysteine ([SW|ThrR]) [Pubmed|27260660]view in new tabBiological materials
Mutant
BKE32260 ([gene|11421D5BD3AB6C205DDA0864F878E2B04340033F|hom]::erm trpC2) available at [http://www.bgsc.org/getdetail.php?bgscid=BKE32260 BGSC], [Pubmed|28189581], upstream reverse: _UP1_CAAAAAAACTCCACCTTTCT, downstream forward: _UP4_GTAGAAGGGAACGGTTGGAGBKK32260 ([gene|11421D5BD3AB6C205DDA0864F878E2B04340033F|hom]::kan trpC2) available at [http://www.bgsc.org/getdetail.php?bgscid=BKK32260 BGSC], [Pubmed|28189581], upstream reverse: _UP1_CAAAAAAACTCCACCTTTCT, downstream forward: _UP4_GTAGAAGGGAACGGTTGGAGExpression vector
pGP2297 (expression with SUMO protein and N-terminal His-tag from ''E. coli'', in [SW|pET-SUMOadapt]), available in [SW|Jörg Stülke]'s labpGP2300 (expression with N-terminal His-tag from ''E. coli'', in [SW|pWH844]), available in [SW|Jörg Stülke]'s lablacZ fusion
pBP312 (in [SW|pAC5]), available in [SW|Fabian Commichau]'s lab [Pubmed|27260660]References
12107147,18763711,3139660,19258532,24163341,25777134,15378759,25755103,27260660,6786715,33046675