Ac-Arg-Gly-Lys-MCA

环肽的合成方法

- trispyrrolidino phosphonium hexa fluorophosphate）和HATU [O - （7 - azabenzotriazol -1-yl）-1，1，3，3-tetramethyluronium hexafluoro-phosphate]等。使用这些缩合剂不仅反应速度快，而且手性不受损害。 Ehrlich等考察了不同缩合剂对GnRH衍生物十肽H-Nal-d-Cpa-d-Pal-Glu-Tyr-d-Arg-Leu-Arg-Pro-Lys（Ac）-OH环合反应的影响，发现HAPyU

常用核酸和氨基酸代码

Thr T ACA Thr T ACG Thr T AAU Asn N AAC Asn N AAA Lys K AAG Lys K AGU Ser S AGC Ser S AGA Arg R AGG Arg R G GUU Val V GUC Val V GUA Val V GUG Val V GCU ALA A GCC ALA A GCA ALA A GCG ALA A GAU Asp D GAC Asp D GAA Glu E GAG Glu E GGU Gly G GGC Gly G GGA

切除融合标签常用蛋白酶的酶切位点

Cleavage Sites Table for Fusion Proteins：PROTEASE COMPANY Protease Capture Thrombin Leu-Val-Pro-Arg�Gly-SerAmersham-Biosciences, Novagen, SIGMA, RocheBenzamidine-AgaroseFactor Xa Ile-Glu/Asp-Gly-Arg� Amersham-Biosciences, New England Biolabs