The Journal of nutrition, 118(2), 159-164 (1988-02-01)
This study was designed to investigate a postulated relationship between vitamin B-12 and leucine metabolism in mature domestic chickens. Plasma amino acid analysis revealed the presence of beta-leucine at a concentration of 60 to 80 mumol/l. After 425 d on
The synthesis and detection of beta leucines.
S R Sylvester et al.
Proceedings of the Western Pharmacology Society, 24, 117-117 (1981-01-01)
Beta-leucine and the beta-keto pathway of leucine metabolism.
J M Poston
Advances in enzymology and related areas of molecular biology, 58, 173-189 (1986-01-01)
The Journal of biological chemistry, 255(21), 10067-10072 (1980-11-10)
Circulating levels of beta-leucine are elevated in the cobalamin-deficient state of pernicious anemia. Levels of leucine, on the other hand, are much lower. It is proposed that leucine 2,3-aminomutase, the cobalamin-dependent enzyme that catalyzes the interconversion of leucine and beta-leucine
For studies on the coenzyme B12-dependent enzyme, leucine-2,3-aminomutase, (3R)- and (3S)-beta-leucines were synthesized. The 10-camphorsulfonamide p-nitrobenzyl esters could be resolved by normal-phase HPLC. A much better separation was obtained by reversed-phase HPLC of the diastereomeric derivatives obtained by treatment of
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