The secretory pathway in eukaryotic cells is crucial for maintaining cellular function and physiological activities, as it ensures the accurate transport of proteins to specific subcellular locations or for secretion outside the cell. A research team led by Prof. GUO Yusong from the Division of Life Science at The Hong Kong University of Science and Technology (HKUST) has been extensively investigating the molecular mechanisms by which cargo proteins are recognized and loaded into transport vesicles in the secretory pathway. The team has successfully reconstituted the packaging of multiple disease-related cargo proteins into vesicles along the secretory route, providing a powerful tool for dissecting the molecular mechanisms of cargo loading. In addition, they developed an innovative analysis platform that integrates vesicle reconstitution with electron microscopy and proteomics, enabling systematic identification of vesicle protein composition and morphological features. This comprehensive approach has proven effective in uncovering novel cargo clients and cellular factors that mediate vesicular trafficking (Figure 1).

In the marine green alga Codium fragile, unusual carotenoids rapidly dissipate harmful chlorophyll triplet states, protecting the organism from light-induced damage. Using EPR spectroscopy and quantum chemical simulations, the study revealed the structural and electronic principles behind this photoprotection, offering insights for potential bio-inspired solar technologies.

Reptiles could overtake amphibians as the highest priority for conservation among vertebrates as threats like climate change and invasive species worsen in the future, according to a new conservation index tool developed by Gabriel Henrique de Oliveira Caetano at Ben-Gurion University of the Negev, Israel and Université Paris-Saclay, France, and colleagues, publishing October 21^st in the open-access journal PLOS Biology.