Abstract
Glycogen synthase kinase-3 (ATP: protein phosphotransferase, EC 2.7.1.37) phosphorylated K-casein 20-fold more rapidly than β-casein, while αS1-casein was not a substrate. This distinguished it from casein kinase-I and casein kinase-II, which phosphorylate the β-casein variant preferentially. Glycogen synthase kinase-3 phosphorylated a serine residue(s) in the C-terminal cyanogen bromide fragment on K-casein. In contrast, cyclic AMP-dependent protein kinase phosporylated the N-terminal fragment, and phosphorylase kinase the N-terminal and intermediate cyanogen bromide fragments. The results emphasize the potential value of casein phosphorylation as a means of classifying protein kinases.
| Original language | English |
|---|---|
| Pages (from-to) | 149-153 |
| Number of pages | 5 |
| Journal | Biochimica et Biophysica Acta (BBA)/Protein Structure and Molecular |
| Volume | 745 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 15 Jun 1983 |
Keywords
- (Rabbit skeletal muscle)
- Casein kinase
- Glycogen synthase kinase
- Protein kinase
ASJC Scopus subject areas
- Structural Biology
- Biophysics
- Biochemistry
- Molecular Biology
Fingerprint
Dive into the research topics of 'Phosphorylation of K-casein by glycogen synthase kinase-3 from rabbit skeletal muscle'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver