4.2.1.108 (2S)-4-acetamido-2-aminobutanoate - 4.2.1.108 4-N-acetyl-L-2,4-diaminobutanoate final step in L-ectoine biosynthesis, L-ectoine acts as an osmoprotectant 4.2.1.108 4-N-acetyl-L-2,4-diaminobutanoate final step in L-ectoine biosynthesis, L-ectoine is the compatible solute in the cell 4.2.1.108 4-N-acetyl-L-2,4-diaminobutanoate final step in L-ectoine biosynthesis, pathway overview 4.2.1.108 4-N-acetyl-L-2,4-diaminobutanoate final step in L-ectoine biosynthesis, pathway overview, L-ectoine is the main compatible solute in the organism with a cytoplasmic concentration of 1-2 M 4.2.1.108 additional information phylogenetic analysis 4.2.1.108 additional information the enzyme is osmoregulated in response to medium salinity allowing the organism to live in environments with high concentration of osmolytes 4.2.1.108 N4-acetyl-L-2,4-diaminobutanoate an intramolecular condensation reaction 4.2.1.108 N4-acetyl-L-2,4-diaminobutyrate -