Active site generated analogs of reactive intermediates in enzymic reactions. Potent inhibition of pyruvate dehydrogenase by a phosphonate analog of pyruvate

R Kluger, DC Pike - Journal of the American Chemical Society, 1977 - ACS Publications
R Kluger, DC Pike
Journal of the American Chemical Society, 1977ACS Publications
OO IIII PDH-TPP· CH3CP xoch3 f1 OH 0 Me I+. Tii 0" 5= t PDH· XZ^ C—C—P(2)/-*< k XCH·
reaction conditions (eq 2). We now find that MAP does com-pete with pyruvate for the active
site of Ei of PDH. The magnitude and specificity of inhibition suggest a common type of
covalent adduct forms. The involvement of TPP in the overall PDH reaction suggests the
nature of the addition product.
OO IIII PDH-TPP· CH3CP xoch3 f1 OH 0 Me I+. Tii 0" 5= t PDH· XZ^ C—C—P(2)/-*< k XCH· reaction conditions (eq 2). We now find that MAP does com-pete with pyruvate for the active site of Ei of PDH. The magnitude and specificity of inhibition suggest a common type of covalent adduct forms. The involvement of TPP in the overall PDH reaction suggests the nature of the addition product.
ACS Publications
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