J. Biol. Chem., Vol. 256, Issue 20, 10228-10230, 10, 1981
Two regions of the bifunctional protein aspartokinase I- homoserine dehydrogenase I are connected by a short hinge
L Sibilli, G Le Bras, G Le Bras and GN Cohen
Four proteases differing in their specificity, i.e. subtilisin, trypsin,
alpha-chymotrypsin and V8 staphylococcal protease, cleave the bifunctional
protein Escherichia coli aspartokinase I-homoserine dehydrogenase I
(composed of 820 residues) producing an active homoserine dehydrogenase
fragment. This cleavage occurs within a short segment of the polypeptide
chain extending from residue 293 to residue 300.