L-Threoninamide, L-a-aspartyl-L-prolyl-L-a-glutamyl-L-prolyl-L-alanyl-L-prolyl-L-prolyl-L-valyl-L -prolyl-L-threonyl-L-threonyl-L-alanyl-L-alanyl-L-seryl-L-prolyl-L-prolyl-L-seryl -L-threonyl-L-ala