Volume 133, Issue 12 pp. 6720-6726
Forschungsartikel

Cooperative Stapling of Native Peptides at Lysine and Tyrosine or Arginine with Formaldehyde

Bo Li

Bo Li

State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071 China

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Hong Tang

Hong Tang

State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071 China

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Dr. Aneta Turlik

Dr. Aneta Turlik

Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, 90095 USA

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Zhao Wan

Zhao Wan

State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071 China

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Prof. Dr. Xiao-Song Xue

Prof. Dr. Xiao-Song Xue

State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071 China

Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, 90095 USA

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Prof. Dr. Li Li

Prof. Dr. Li Li

Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100050 China

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Dr. Xiaoxiao Yang

Dr. Xiaoxiao Yang

Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100050 China

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Dr. Jiuyuan Li

Dr. Jiuyuan Li

Asymchem Life Science Co., Ltd. TEDA, Tianjin, 300457 China

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Prof. Dr. Gang He

Prof. Dr. Gang He

State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071 China

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Prof. Dr. Kendall N. Houk

Corresponding Author

Prof. Dr. Kendall N. Houk

Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, 90095 USA

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Prof. Dr. Gong Chen

Corresponding Author

Prof. Dr. Gong Chen

State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071 China

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First published: 18 December 2020
Citations: 7

Dedicated to Professor Samuel J. Danishefsky

Abstract

Stapling of peptides by intramolecular crosslinking of two neighboring amino acid side chains offers an important tool to modulate the structure and properties of peptides. In comparison to the stapling of artificially engineered peptide substrates, methods for stapling native peptides are more desirable for easier accessibility and genetic encodability. However, the existing strategy for selectivity control in the stapling of native peptides is relatively limited: the site of anchoring is often dominated by Cys, and the means for achieving the position selectivity among the same type of residues at different locations is lacking. We have developed a simple and powerful strategy for stapling native peptides at lysine residues with formaldehyde by the cooperation of nearby tyrosine or arginine residues. The stapling reactions can proceed with high efficiency and residue selectivity under mild conditions, and generate linchpins with distinct physiochemical properties. The new method for peptide stapling enables unique control of position-selectivity for substrates bearing multiple reaction sites by reactivity that can be readily built in the peptide sequence.

Conflict of interest

The authors declare no conflict of interest.

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