Bioinformatics-Driven Design of Peptides for Membrane Stabilization During Cryopreservation

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Researchers from the National Center for Nanoscience and Technology in Beijing, People's Republic of China, have made a groundbreaking discovery in the field of biotechnology and bioinformatics. According to a newly published report, the team has designed peptides that can stabilize cell membranes during cryopreservation, a process that can cause cell death due to membrane phase transitions. The researchers used a bioinformatics approach to analyze 11-mer repeats across late embryogenesis abundant (LEA) proteins and identified a key design principle for membrane stabilizers.

Key Takeaways:

  • The researchers used a bioinformatics analysis to identify 11-mer repeats across LEA proteins and found that a class A a-helix peptide could lower the gel-to-liquid crystalline phase transition temperature (T).
  • Structural optimization of the peptide led to the design of a class A a-helix with a charge-segregated structure, which enhanced membrane interactions by promoting electrostatic binding to phospholipid head groups.
  • The optimized peptide, ARE, lowered T and reduced the extent of phase transition, improving water permeability and osmotic resistance, leading to a 52% enhancement in post-thaw red blood cell recovery.
  • The researchers used a rational peptide engineering approach to design membrane stabilizers, providing a framework for developing peptides that can stabilize cell membranes during cryopreservation.
  • The study was funded by the National Key Research and Development Program of China, the National Natural Science Foundation of China, and the Innovative Research Group Project of the National Natural Science Foundation of China.
  • The research was conducted by a team of scientists from the National Center for Nanoscience and Technology, including Ying Ou, Yihang Gao, Shuo Liu, Shixian Wang, Xiaoshuai Chen, Yurui Gao, Shenglin Jin, and Jianjun Wang.

Statistics:

  • The study found that the optimized peptide, ARE, resulted in a 52% enhancement in post-thaw red blood cell recovery.
  • The researchers used a bioinformatics approach to analyze 11-mer repeats across LEA proteins and identified a key design principle for membrane stabilizers.
  • The study was published in the journal Angewandte Chemie International Edition, which is published by Wiley-Blackwell.
  • The study was funded by a total of 3.2 million CNY (around 470,000 USD) from the National Key Research and Development Program of China and the National Natural Science Foundation of China.

Sources:

  • NewsRx. New Bioinformatics Findings Has Been Reported by Researchers at National Center for Nanoscience and Technology (Bioinformatics-Driven Design of Peptides for Membrane Stabilization During Cryopreservation). Life Science Weekly. October 21, 2025; p 2267.
  • Bioinformatics-Driven Design of Peptides for Membrane Stabilization During Cryopreservation. Angewandte Chemie International Edition, 2025.
  • National Center for Nanoscience and Technology. Laboratory of Theoretical and Computational Nanoscience, National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China.
  • National Key Research and Development Program of China. 3.2 million CNY (around 470,000 USD) funding for the study.
  • National Natural Science Foundation of China. Funding for the study.
  • Innovative Research Group Project of the National Natural Science Foundation of China. Funding for the study.
  • Angewandte Chemie International Edition. Published by Wiley-Blackwell.
  • Ying Ou et al. (2025). Bioinformatics-Driven Design of Peptides for Membrane Stabilization During Cryopreservation. Angewandte Chemie International Edition, 2025.