1. Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7‐3‐1 Hongo, Bunkyo‐ku, Tokyo 113‐8656 (Japan);2. Department of Bioengineering, School of Engineering, The University of Tokyo, 7‐3‐1 Hongo, Bunkyo‐ku, Tokyo 113‐8656 (Japan), Fax: (+81)?3‐5841‐8657;3. Center for NanoBio Integration, The University of Tokyo, 7‐3‐1 Hongo, Bunkyo‐ku, Tokyo 113‐8656 (Japan)
Abstract:
A new enzymatic protein ligation tool , sortase, has recently emerged from Gram‐positive bacteria. This article outlines the technique, sortase‐mediated ligation, and its applications in protein engineering, which include the introduction of unnatural molecules into proteins, protein immobilization, protein–protein conjugation, protein cyclization, as a self‐cleavable tag for protein expression, protein–PNA hybrids, neoglycoconjugates, and cell‐surface protein labeling, etc.