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Updated: Jun 20, 2026

OaAEP1-Mediated Enzymatic Synthesis and Immobilization of Polymerized Protein for Single-Molecule Force Spectroscopy
Published on: February 5, 2020
Sortase-mediated protein ligation: an emerging biotechnology tool for protein modification and immobilisation
1Department of Molecular Medicine & Pathology, School of Medical Sciences, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand. t.proft@auckland.ac.nz
Abstract:
Sortases are transpeptidases produced by Gram-positive bacteria to anchor cell surface proteins covalently to the cell wall. The Staphylococcus aureus sortase A (SrtA) cleaves a short C-terminal recognition motif (LPXTG) on the target protein followed by the formation of an amide bond with the pentaglycine cross-bridge in the cell wall. Over recent years, several researchers have exploited this specific reaction for a range of biotechnology applications, including the incorporation of non-native peptides and non-peptidic molecules into proteins, the generation of nucleic acid-peptide conjugates and neoglycoconjugates, protein circularisation, and labelling of cell surface proteins on living cells.
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