Proteasomes are protected from autophagic elimination upon carbon starvation by sequestration into cytoplasmic storage granules, which aid cell fitness by providing a cache of proteasomes that can be rapidly remobilized when carbon availability improves.
A model for synchronous neurotransmitter release suggests that when not in the presence of calcium ions, Synaptotagmin proteins form ring-like structures between the vesicle and plasma membrane that prevent spontaneous fusion.
XIAP/TRIP-Br1-mediated degradation of multiple adenylyl cyclase isoforms is a previously unrecognised general mechanism for controlling adenylyl cyclase expression and the homeostasis of cAMP signalling.
Loss-of-function screening identified transglutaminase 2 (TGM2) as a putative tumor suppressor in the TP53 pathway and revealed that TGM2-mediated autophagy and CDKN1A-mediated cell cycle arrest are two critical barriers that prevent oncogenic transformation.
Eukaryotic translation elongation factor 1A1 controls the process of heat shock response, from transcriptional activation of the HSP70 gene, to HSP70 mRNA stabilization, nuclear export, and translation.