Abstract
The specific activities and substrate specificities of 3-oxoacyl-CoA thiolase A (thiolase A) purified from normal rat liver peroxisomes and 3-oxoacyl-CoA thiolase B (thiolase B) isolated from livers of rats treated with the peroxisome proliferator clofibrate were virtually identical. The enzymes could be distinguished by their N-terminal amino acid sequences, their isoelectric points and their stability, the latter being higher for thiolase A. Contrary to thiolase B, which showed a marked cold lability in the presence of KCl by dissociating into monomers with poor activity, thiolase A retained its full activity and its homodimeric structure under these conditions.
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Schedule a callMore From: Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids
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