申请人:Ikaria Inc.
公开号:US20180066298A1
公开(公告)日:2018-03-08
Provided herein are compositions and methods for generating polypeptides using non-natural amino acids (nnAAs) and genetic machinery, wherein the modified polypeptides, such as therapeutic polypeptides, bind to albumin, such as serum albumin. Methods of substituting a non-natural amino acid in a first polypeptide to obtain a modified polypeptide, the nnAA in some instances comprising an albumin targeting group, are disclosed, as are methods for making populations of such modified polypeptides. A therapeutic polypeptide, interleukin-1 receptor antagonist (IL-1RA) is exemplified using the disclosed methods.
本文提供了使用非天然氨基酸(nnAAs)和基因机器生成多肽的组合物和方法,其中修改后的多肽,如治疗性多肽,与白蛋白(如血清白蛋白)结合。揭示了将非天然氨基酸替换为第一多肽中的非天然氨基酸以获得修改后的多肽的方法,其中在某些情况下,nnAA包括白蛋白靶向基团,还揭示了制备这种修改后的多肽群的方法。使用所述方法举例说明了治疗性多肽,白细胞介素-1受体拮抗剂(IL-1RA)。