Partial Characterization of Protein Kinase C and Inhibitor Activity of Protein Kinase C in Rabbit Peritoneal Neutrophils
- 1 June 1986
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Leukocyte Biology
- Vol. 39 (6) , 671-678
- https://doi.org/10.1002/jlb.39.6.671
Abstract
Analysis of the cytosol fraction containing protein kinase C activity from rabbit peritoneal neutrophils by DEAE-cellulose chromatography identified protein kinase C activity in the fractions eluted with 0.08 M–0.14 M NaCl and protein kinase C inhibitor activity in the fraction eluted with 0.16 M–0.5 M NaCl. On further analysis by Sephadex G-150 gel filtration, one peak of protein kinase C and two peaks of inhibitor activity were identified. The peak of protein kinase C activity eluted at Ve/Vo 1.6 corresponding to a Stokes radius of 35 å. The first peak of the inhibitor activity eluted at Ve/Vo 1.4 and the second peak of the inhibitor activity eluted at Ve/Vo 2.5. The peak of phosphoprotein phosphatase activity does not coincide with the peaks of inhibitor activity of protein kinase C.Keywords
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