Patent ID: 8304520
Filing Date: 2012-11-06
Classification: C07K,C12N,G01N

Abstract:
1. A labeled fusion protein comprising a first protein, a rod-like spacer, a tag and a label, wherein the first protein is positioned at one end of the rod-like spacer, and the tag and the label are positioned at the other end of the rod-like spacer, wherein the rod-like spacer is a protein that has an antiparallel coiled coil structure and is composed of a first rod-like spacer domain and a second-rod like spacer domain, wherein the tag is an isolation tag for purification of the fusion protein and the label is for detecting the fusion protein, wherein the tag and label are located between the first rod-like spacer domain and the second rod-like spacer domain, and wherein the first protein, the rod-like spacer, the tag and the label form a polypeptide chain.