IUBMB Enzyme Nomenclature


Accepted name: homoserine kinase

Reaction: ATP + L-homoserine = ADP + O-phospho-L-homoserine

For diagram click here.

Other name(s): homoserine kinase (phosphorylating); HSK

Systematic name: ATP:L-homoserine O-phosphotransferase

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, PDB, CAS registry number: 9026-58-8


1. Flavin, M. and Slaughter, C. Purification and properties of threonine synthetase of Neurospora. J. Biol. Chem. 235 (1960) 1103-1108.

2. Watanabe, Y., Konishi, S. and Shimura, K. Biosynthesis of threonine from homoserine. VI. Homoserine kinase. J. Biochem. (Tokyo) 44 (1957) 299-307.

[EC created 1961]

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