核糖霉素 、 YALPETGK 在
transpeptidase sortase A from Staphylococcus aureus Tris-HCl buffer 、 2-巯基乙醇 作用下,
反应 6.0h,
以21.7%的产率得到
参考文献:
名称:
Peptide−Sugar Ligation Catalyzed by Transpeptidase Sortase: A Facile Approach to Neoglycoconjugate Synthesis
摘要:
Glycoconjugate synthesis involving sugar and polypeptide remains a formidable challenge. Here we report a novel enzymatic method involving an unprecedented sortase-catalyzed transamidation reaction for site-specific engineering of sugars into native proteins. We show that sugars appended with a 6-aminohexose moiety can be efficiently ligated to peptides; and proteins encoded with a LPXTG sortase, recognition sequence. This robust reaction provides an elegant and simple approach for generating neoglycoproteins with an amide-linked sugar moiety at the carboxy terminus.