TPM4 produced in E.Coli is a single, non-glycosylated polypeptide chain containing 268 amino acids (1-248 a.a.) and having a molecular mass of 30.7kDa. TPM4 is fused to a 20 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques. Purity >85.0% as determined by SDS-PAGE.