COPII vesicles regulate the metabolism of cholesterol through the selective transport of secretory proteins.
X Chen, H Wang, K Bajaj, P Zhang, Z Meng, D Ma, Y Bai, H Liu, E Adams, A Baines, G Yu, MA Sartor, B Zhang, Z Yi, J Lin, SG Young, R Schekman, D Ginsburg
Fluorescence resonance energy transfer has been used to explore the interactions between DNA polymerases, sliding clamps and clamp loaders as DNA is replicated in human cells.
The HITS-CLIP sequencing method is used to demonstrate that cryptic exons can detect messenger RNA that contains nonsense mutations, and then cause this RNA to decay, which shows that these exons are involved in maintaining the electrical balance of neurons and, possibly, preventing epilepsy.
T Eom, C Zhang, H Wang, K Lay, J Fak, JL Noebels, RB Darnell
The enzyme that collaborates with ubiquitin ligases to promote the release of defective polypeptides from stalled ribosomes in a process named ribosome-associated degradations has been identified as the ATPase Cdc48.
The ability of epithelial cells to distinguish between domains on opposing cell surfaces within a tissue, a property known as planar cell polarity, relies on proteins and protein complexes directing the traffic of signaling proteins to specific locations on the cell surface membrane.