Patent ID: 9676871
Date: 2017-06-13
CPC Classifications: A61K,A61P,C07K

Claim:
1. An engineered Fc-containing polypeptide conjugate comprising the formula: (Fc-containing polypeptide)-T-A, wherein T is an acyl donor glutamine-containing tag engineered at a specific site or comprises an endogenous glutamine (Q) made reactive by the Fc-containing polypeptide engineering; wherein A is an amine donor agent; wherein the amine donor agent is site-specifically conjugated to the acyl donor glutamine-containing tag or the endogenous glutamine at a carboxyl terminus, an amino terminus, or at an another site in the Fc-containing polypeptide, wherein the acyl donor glutamine-containing tag consists of an amino acid sequence selected from the group consisting of LLQGG (SEQ ID NO:2), LSLSQG (SEQ ID NO:4), GGGLLQGG (SEQ ID NO:5), GLLQG (SEQ ID NO:6), LLQ, GSPLAQSHGG (SEQ ID NO:7), GLLQGGG (SEQ ID NO:8), GLLQGG (SEQ ID NO:9), GLLQ (SEQ ID NO:10), LLQLLQGA (SEQ ID NO:47), LLQGA (SEQ ID NO:48), LLQYQGA (SEQ ID NO:49), LLQGSG (SEQ ID NO:50), LLQYQG (SEQ ID NO:51), LLQLLQG (SEQ ID NO:52), SLLQG (SEQ ID NO:53), LLQLQ (SEQ ID NO:54), LLQLLQ (SEQ ID NO:55), and LLQGR (SEQ ID NO:56).