130007-45-3 L-Threonine, N-(N-(N-(N-(1-(N-(N-(N-L-tyrosyl-L-seryl)-L-alpha-aspartyl)-L-seryl)-L-prolyl)-L-seryl)-L-threonyl)-L-seryl)- N-(N-(N-(N-(1-(N-(N-(N-L-Tyrosyl-L-seryl)-L-alpha-aspartyl)-L-seryl)-L-prolyl)-L-seryl)-L-threonyl)-L-seryl)-L-threonine Tyr-ser-asp-pro-ser-thr-ser-thr Tyrosyl-seryl-aspartyl-prolyl-seryl-threonyl-seryl-threonyl Ysdspstst Ysdspstst peptide