Bifunctional protein from carrots (Daucus carota) with aspartokinase and homoserine dehydrogenase activities
AssigneeThe United States of America as represented by the Secretary of Agriculture
InventorsBenjamin F. Matthews, Jane M. Weisemann
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Abstract
A bifunctional enzyme has been isolated and purified from carrots which has both aspartokinase and homoserine dehydrogenase activities in the same polypeptide. The enzyme can be used to regulate lysine, homoserine, threonine, isoleucine and methionine content in plants. The DNA sequence encoding the bifunctional enzyme is also disclosed.
Claims5
A purified and isolated bifunctional protein extracted from carrots wherein said protein is a means for regulating the lysine and homoserine content in plants and wherein said protein has both homoserine dehydrogenase and aspartokinase activity in the same polypeptide.
Dependencies are inferred from the claim text.