These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


PUBMED FOR HANDHELDS

Search MEDLINE/PubMed


  • Title: Long-term regulation of pyruvate dehydrogenase complex. Evidence that kinase-activator protein (KAP) is free pyruvate dehydrogenase kinase.
    Author: Jones BS, Yeaman SJ.
    Journal: Biochem J; 1991 May 01; 275 ( Pt 3)(Pt 3):781-4. PubMed ID: 2039455.
    Abstract:
    The kinase-activator protein (KAP) of pyruvate dehydrogenase complex (PDC) has been purified approx. 2250-fold from high-speed supernatants of mitochondrial extracts from the liver of 48 h-starved rats. Purified KAP demonstrates kinase activity towards both the E1 component of PDC and towards a synthetic peptide corresponding to the major phosphorylation site on E1. Furthermore, the activities of KAP and PDC kinase co-fractionate through several stages of purification and have the same apparent mass. We conclude that KAP is not a distinct protein, but is kinase which has dissociated from the complex.
    [Abstract] [Full Text] [Related] [New Search]