2.7.1.39 ATP + 4-hydroxynorvaline 0.3% of the activity with L-homoserine Escherichia coli ADP + 4-phospho-L-norvaline - ? 357545 2.7.1.39 ATP + D-homoserine 32% of the turnover number with L-homoserine Escherichia coli ADP + O-phospho-D-homoserine - ? 357546 2.7.1.39 ATP + L-2-amino-1,4-butanediol 7.9% of the turnover number with L-homoserine Escherichia coli ADP + ? - ? 357547 2.7.1.39 ATP + L-2-amino-5-hydroxyvalerate 9.9% of the turnover number with L-homoserine Escherichia coli ADP + L-2-amino-5-phosphovalerate - ? 357548 2.7.1.39 ATP + L-aspartate 4-semialdehyde 8.2% of the turnover number with L-homoserine Escherichia coli ? - ? 357544 2.7.1.39 ATP + L-aspartate 4-semialdehyde 10% of the activity with L-homoserine Escherichia coli ? - ? 357544 2.7.1.39 ATP + L-homoserine - Escherichia coli ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine - Saccharomyces cerevisiae ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine - Triticum aestivum ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine - Hordeum vulgare ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine - Pisum sativum ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine - Pseudomonas aeruginosa ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine - Schizosaccharomyces pombe ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine - [Brevibacterium] flavum ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine - Candida albicans ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine - Raphanus sativus ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine - Streptomyces sp. ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine - Rhodospirillum rubrum ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine - Methanocaldococcus jannaschii ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine - Streptococcus sanguinis ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine - Arabidopsis thaliana ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine - Corynebacterium glutamicum ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine - Leishmania major ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine fourth enzyme in the aspartate pathway of amino acid biosynthesis Methanocaldococcus jannaschii ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine enzyme in the aspartate pathway of amino acid biosynthesis Escherichia coli ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine key enzyme in the aspartate pathway of amino acid biosynthesis in E. coli Escherichia coli ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine the enzyme plays an important role in the regulation of the threonine biosynthesis Saccharomyces cerevisiae ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine the enzyme is not involved in the regulation of methionine, threonine and isoleucine biosynthesis Triticum aestivum ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine enzyme of threonine biosynthesis Saccharomyces cerevisiae ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine formation of O-phospho-L-homoserine, a branch point intermediate in the pathways for Met and Thr in plants Arabidopsis thaliana ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine the enzyme catalyzes a reaction common to synthesis of Thr, Ile and Met in plants Pisum sativum ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine the enzyme catalyzes a reaction common to synthesis of Thr, Ile and Met in plants Raphanus sativus ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine the enzyme is a potential control point in the biosyntic pathway for Thr, Ile and Met Raphanus sativus ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine enzyme catalyzes an obligatory step of threonine biosynthesis Pseudomonas aeruginosa ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine enzyme of L-Thr synthesis Rhodospirillum rubrum ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine involved in the biosynthesis of threonine Streptomyces sp. ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine involved in the biosynthesis of threonine and isoleucine Schizosaccharomyces pombe ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine involved in the biosynthesis of threonine, isoleucine, and methionine, substrate availability rather than enzyme level rate limiting for the reaction Arabidopsis thaliana ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine - Corynebacterium glutamicum LMG 3730 ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine - Corynebacterium glutamicum BCRC 11384 ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine - Rhodospirillum rubrum S1 ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine enzyme of L-Thr synthesis Rhodospirillum rubrum S1 ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine - Streptococcus sanguinis SK36 ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine - Corynebacterium glutamicum ATCC 13032 ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine - Corynebacterium glutamicum JCM 1318 ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine - Saccharomyces cerevisiae YJM145 ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine - Corynebacterium glutamicum NCIMB 10025 ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine - Streptomyces sp. NRRL 5331 ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine involved in the biosynthesis of threonine Streptomyces sp. NRRL 5331 ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine - Corynebacterium glutamicum DSM 20300 ADP + O-phospho-L-homoserine - ? 357543 2.7.1.39 ATP + L-homoserine ethyl ester 74% of the turnover number with L-homoserine Escherichia coli ADP + O-phospho-L-homoserine ethyl ester - ? 357550 2.7.1.39 ATP + L-homoserine isopropyl ester 74% of the turnover number with L-homoserine Escherichia coli ADP + O-phospho-L-homoserine isopropyl ester - ? 357551 2.7.1.39 ATP + L-homoserine isubutyl ester 84% of the turnover number with L-homoserine Escherichia coli ADP + O-phospho-L-homoserine isobutyl ester - ? 357553 2.7.1.39 ATP + L-homoserine methyl ester 80% of the turnover number with L-homoserine Escherichia coli ADP + O-phospho-L-homoserine methyl ester - ? 357549 2.7.1.39 ATP + L-homoserine n-butyl ester 160% of the turnover number with L-homoserine Escherichia coli ADP + O-phospho-L-homoserine n-butyl ester - ? 357554 2.7.1.39 ATP + L-homoserine n-propyl ester 76% of the turnover number with L-homoserine Escherichia coli ADP + O-phospho-L-homoserine n-propyl ester - ? 357552 2.7.1.39 L-homoserine + ATP - Methanocaldococcus jannaschii O-phospho-L-homoserine + ADP - ? 409666 2.7.1.39 additional information enzyme has inherent ATPase activity Escherichia coli ? - ? 89