Claim: Tm is a 32.7 kDa protein composed of 284 amino acids, and Tm is a flexible protein homodimer or heterodimer composed of two alpha-helical chains.
Evidence: Tm is a 32.7 kDa protein composed of 284 amino acids. Tm is a flexible protein homodimer or heterodimer composed of two alpha-helical chains, which adopt a bent coiled coil conformation to wrap around the seven actin molecules in a functional unit of muscle.