UMBARGER, H E The rôle of alpha-keto- beta-ethylbutyric acid in the biosynthesis of isoleucine. [electronic resource] - The Journal of biological chemistry Oct 1951 - 883-9 p. digital Publication Type: Journal Article ISSN: 0021-9258 Subjects--Topical Terms: ButyratesIsoleucineKeto AcidsLeucine