ser7

KB-0742 dihydrochloride is a potent, selective, and orally administered inhibitor of CDK9.

[pSer2, pSer5, pSer7]-CTD (TFA) is a phosphorylated polypeptide at ser2, ser5, and ser7 of RNA polymerase II carboxyl terminus (CTD) and a substrate for CDK7 (cyclin-dependent protein kinase).

[pSer2, pSer5, pSer7]-CTD is a substrate for CDK7(cyclin-dependent protein kinase), a phosphorylated polypeptide at ser2, ser5, and ser7 of RNA polymerase II carboxyl terminus (CTD).

CCK1-specific peptide substrate is a bioactive peptide. [The peptide sequence is based on Ser7-phosphorylated rabbit muscle glycogen synthase.] It serves as a peptide substrate for casein kinase I (CK1), which phosphorylates Ser10. In vivo, Ser7 is phosphorylated by PKA.