This enzyme, characterized from the yeast Saccharomyces cerevisiae, catalyses the reduction of L-2-aminoadipate to (S)-2-amino-6-oxohexanoate during L-lysine biosynthesis. An adenylation domain activates the substrate at the expense of ATP hydrolysis, and forms L-2-aminoadipate adenylate, which is attached to a peptidyl-carrier protein (PCP) domain. Binding of NADPH results in reductive cleavage of the acyl-S-enzyme intermediate, releasing (S)-2-amino-6-oxohexanoate. Different from EC 1.2.1.31, L-aminoadipate-semialdehyde dehydrogenase, which catalyses a similar transformation in the opposite direction without ATP hydrolysis.
This enzyme, characterized from the yeast Saccharomyces cerevisiae, catalyses the reduction of L-2-aminoadipate to (S)-2-amino-6-oxohexanoate during L-lysine biosynthesis. An adenylation domain activates the substrate at the expense of ATP hydrolysis, and forms L-2-aminoadipate adenylate, which is attached to a peptidyl-carrier protein (PCP) domain. Binding of NADPH results in reductive cleavage of the acyl-S-enzyme intermediate, releasing (S)-2-amino-6-oxohexanoate. Different from EC 1.2.1.31, L-aminoadipate-semialdehyde dehydrogenase, which catalyses a similar transformation in the opposite direction without ATP hydrolysis.
in strains Q176, D6/1014/A, and P2, the enzyme exhibits decreasing affinity for alpha-aminoadipate with increasing capacity of the respective strain to produce penicillin
in strains Q176, D6/1014/A, and P2, in vivo activity of alpha-aminoadipate reductase from superior penicillin producer strains is more strongly inhibited by lysine, and this is related to their ability to accumulate increased amounts of alpha-aminoadipate, and hence penicillin
the enzyme is involved in the fungal de novo L-lysine biosynthesis via ATP- and NADPH-dependent reduction of the intermediate L-alpha-aminoadipic acid into L-alpha-aminoadipate 6-semialdehyde as a multifunctional aminoacyl-adenylate-forming reductase, pathway overview
L-alpha-aminoadipic acid reductases catalyze the ATP- and NADPH-dependent reduction of L-alpha-aminoadipic acid to the corresponding 6-semialdehyde during fungal L-lysine biosynthesis
the enzyme has a multidomain composition but features a unique domain of elusive function, termed the adenylation activating (ADA) domain, that extends the reductase N-terminally. The activity of alpha-aminoadipate reductase and A domain depends on the N-terminally extending domain. ADA domain sequence comparison and protein interaction analysis, homology modeling, overview
enzyme-deficient mutants are defective in the biosynthesis of all known polyketides and nonribosomal peptides and hypersensitive to both iron depletion and oxidative stress. Enzyme disruption reduces germination speed on insect cuticles and results in significant loss of virulence. Enzyme inactivation slightly reduces mycelium hydrophobicity and has no significant effect on conidium hydrophobicity
enzyme-deficient mutants are defective in the biosynthesis of all known polyketides and nonribosomal peptides and hypersensitive to both iron depletion and oxidative stress. Enzyme disruption reduces germination speed on insect cuticles and results in significant loss of virulence. Enzyme inactivation slightly reduces mycelium hydrophobicity and has no significant effect on conidium hydrophobicity
the enzyme has a multidomain composition but features a unique domain of elusive function, termed the adenylation activating (ADA) domain, that extends the reductase N-terminally. The activity of alpha-aminoadipate reductase depends on the N-terminally extending domain
alpha-aminoadipate reductase Lys2 is posttranslationally activated by phosphopantetheinyl transferase Lys5 which transfers a phosphopantetheinyl group from coenzyme A to Lys2. Activation is required for catalytic activity
enzyme Lys1 is active when expressed in Escherichia coli and exhibits significant alpha-aminoadipate reductase activity without the addition of CoA or Schizosaccharomyces pombe phosphopantetheinyl transferase
truncated enzymes based on NPS3, the L-alpha-aminoadipic acid reductase of the basidiomycete Ceriporiopsis subvermispora, lacking the ADA domain either partially or entirely are tested for activity in vitro, together with an ADA-adenylation didomain and the ADA domain-less adenylation domain
enzyme Lys1 is active when expressed in Escherichia coli and exhibits significant alpha-aminoadipate reductase activity without the addition of CoA or Schizosaccharomyces pombe phosphopantetheinyl transferase
enzyme Lys1 is active when expressed in Escherichia coli and exhibits significant alpha-aminoadipate reductase activity without the addition of CoA or Schizosaccharomyces pombe phosphopantetheinyl transferase
recombinant expression of N-terminally His6-tagged truncated NPS3 enzyme mutant lacking the 247 amino acids of the N-terminal ADA domain from pET21a-based expression plasmid pMR1, recombinant expression of N-terminally His6-tagged truncated NPS3 enzyme mutant lacking the 152 amino acids of the N-terminal ADA domain from expression plasmid pDK22, and recombinant expression of the 102.8 kDa ADA-A didomain (lacking the C-terminal 515 amino acids) and the 75.7 kDa standalone NPS3A domain, respectively, in which the first 247 and terminal 515 amino acids are absent, from plasmids pDK24 and pDK25, both based on expression vector pET28a, all in Escherichia coli strain KRX
liver enzyme mRNA abundance is reduced 60% in pigs consuming the low lysine diet compared with the high protein diet and 68% in pigs consuming the low lysine diet compared with pigs consuming the high lysine diet
the sequence of the Saccharomycopsis fibuligera alpha-aminoadipate reductase gene Lys2p has the highest identity of 53% with the AAR of Candida albicans SC5314 and an identity of 51% with that of Saccharomyces cerevisiae. Expression of the ORF of SfLYS2 in a lys2- strain of Saccharomyces cerevisiae can functionally complement the lysine mutant of the Saccharomyces cerevisiae strain. Cloning of SfLYS2 may provide a general tool in developing genetics-based studies not only with Saccharomycopsis fibuligera but also with Saccharomyces cerevisiae
the sequence of the Saccharomycopsis fibuligera alpha-aminoadipate reductase gene Lys2p has the highest identity of 53% with the AAR of Candida albicans SC5314 and an identity of 51% with that of Saccharomyces cerevisiae. Expression of the ORF of SfLYS2 in a lys2- strain of Saccharomyces cerevisiae can functionally complement the lysine mutant of the Saccharomyces cerevisiae strain. Cloning of SfLYS2 may provide a general tool in developing genetics-based studies not only with Saccharomycopsis fibuligera but also with Saccharomyces cerevisiae
the sequence of the Saccharomycopsis fibuligera alpha-aminoadipate reductase gene Lys2p has the highest identity of 53% with the AAR of Candida albicans SC5314 and an identity of 51% with that of Saccharomyces cerevisiae. Expression of the ORF of SfLYS2 in a lys2- strain of Saccharomyces cerevisiae can functionally complement the lysine mutant of the Saccharomyces cerevisiae strain. Cloning of SfLYS2 may provide a general tool in developing genetics-based studies not only with Saccharomycopsis fibuligera but also with Saccharomyces cerevisiae
Lysine biosynthesis in Saccharomyces cerevisiae: mechanism of alpha-aminoadipate reductase (Lys2) involves posttranslational phosphopantetheinylation by Lys5
Novel posttranslational activation of the LYS2-encoded.alpha-aminoadipate reductase for biosynthesis of lysine and site-directed mutational analysis of conserved amino acid residues in the activation domain of Candida albicans
Domain structure characterization of the multifunctional alpha-aminoadipate reductase from Penicillium chrysogenum by limited proteolysis. Activation of alpha-aminoadipate does not require the peptidyl carrier protein box or the reduction domain
Posttranslational activation, site-directed mutation and phylogenetic analyses of the lysine biosynthesis enzymes alpha-aminoadipate reductase Lys1p (AAR) and the phosphopantetheinyl transferase Lys7p (PPTase) from Schizosaccharomyces pombe