Generic peptide substrate for use in TR-FRET biochemical kinase assays. Refer to Selector Guide for validated kinases. MBP peptide (sequence: CFFKNIVTPRTPPPSQGK-amide) labeled with the ULight™ dye. Human Myelin Basic Protein (MBP) phosphorylation site: Thr232 (Swiss-Prot: P02686); corresponds to Thr98 in other isoforms or species. MBP can be phosphorylated by a variety of kinases including ERK1/ERK2.