Matsumoto S, Mizoguchi T, Oizumi N, Tsuruga M, Shinozaki K, Taira H, Ejiri S
Institute for Cell Biology and Genetics, Faculty of Agriculture, Iwate University Morioka, Japan.
Biosci Biotechnol Biochem. 1993 Oct;57(10):1740-2. doi: 10.1271/bbb.57.1740.
The purified casein kinase II (CK II) from Arabidopsis thaliana phosphorylates wheat elongation factor 1 beta (EF-1 beta), but not elongation factor 1 beta' (EF-1 beta'), which lacks a serine residue in the conserved phosphorylation site. Both EF-1 beta and beta' subunits, with similar functions, seem to undergo different regulation despite the partial amino acid sequence of EF-1 beta being similar to that of EF-1 beta'.