VCP's Nuclear Journey: Initiated by Interacting with KPNB1 to Repair DNA Damage

Academic Background DNA damage repair (DDR) is a core mechanism for maintaining genome stability, and its dysfunction is closely associated with cancer development. Valosin-containing protein (VCP/p97), a member of the AAA+ ATPase family, plays a critical role in DDR by recognizing ubiquitinated proteins and recruiting repair factors (e.g., 53BP1, ...

Coupling Between Electrons' Spin and Proton Transfer in Chiral Biological Crystals

Academic Background Proton transfer plays a central role in biological energy conversion (e.g., ATP synthesis) and signal transduction. Traditional theory posits that protons move via a “hopping mechanism” through water chains or amino acid side chains, while the recently proposed “proton-coupled electron transfer” (PCET) hypothesis suggests that e...

Molecular Insights into De Novo Small-Molecule Recognition by an Intron RNA Structure

Academic Background RNA, as a carrier of genetic information and functional molecule, has long been considered an “undruggable” target. In recent years, with advances in RNA structural biology, scientists have begun exploring the development of small-molecule drugs targeting RNA. However, this field faces three core challenges: (1) lack of systemat...

Cyclic Peptide Inhibitors Function as Molecular Glues to Stabilize Gq/11 Heterotrimers

Academic Background G protein-coupled receptors (GPCRs) are the largest family of membrane proteins in the human body, transmitting extracellular signals through heterotrimeric G proteins (composed of Gα and Gβγ subunits). G proteins function as molecular switches, with their activity states regulated by the GTP/GDP cycle: - Inactive state: Gα bind...

Cross-Feeding Creates Tipping Points in Microbiome Diversity

Academic Background Microbiomes are among the most diverse ecosystems on Earth, consisting of hundreds of functionally distinct microbial populations interacting through complex resource exchange networks. However, a long-standing unresolved question is: How is this extraordinary diversity maintained through metabolic interactions among populations...