Molecular Weight: 1361.62
Salt Form: TFA
Sequence (3-letter): Arg-Arg-Arg-Glu-Glu-Glu-Thr-Glu-Glu-Glu-OH
Sequence (1-letter): RRREEETEEE-OH
Storage: -20 °C or below
RRREEETEEE-OH is derived from the kinase II phosphorylation site found in casein and is a specific substrate for casein kinase-2. It is not phosphorylated by casein kinase-1 or other protein kinases such as cAMP-dependent protein kinase, protein kinase G, phosphorylase kinase, myosin light chain kinase, and EGF receptor kinase.