Lys-Arg-Thr-Leu-Arg-Arg (KRTLRR) is a hexapeptide. Lys-Arg-Thr-Leu-Arg-Arg is a substrate of protein kinase C from EGF receptor. Lys-Arg-Thr-Leu-Arg-Arg can be used to determine the activity of protein kinase C.

Cecropin B (free acid) is a polypeptide that can be found by peptide screening. Peptide screening is a research tool that pools active peptides primarily by immunoassay. Peptide screening can be used for protein interaction, functional analysis, epitope screening, especially in the field of agent research and development.

The herbs of Glebionis coronaria.