The augmentation of resin-embedded sample blocks with magnetic resin allows remote actuation of ultrathin sections and deposition at high packing density onto silicon wafers for correlative light and electron microscopy.
A small pool of active epidermal growth factor (EGF) receptors, which are capable of ubiquitylation and efficient endocytosis in vivo, is sufficient to support EGF-receptor-dependent tumor growth by signaling primarily through the Ras-MAPK pathway.
Genetic and biochemical evidence shows that the basal transcription machinery of muscle cells invariably relies on TBP/TFIID because TBP2 is not expressed in muscle cells, and thus resolves a longstanding issue raised by previous conflicting data.
Ablation of the Cdkn1c cell cycle inhibitor leads to defective muscle stem cell dynamics and myogenic potential, while progressive cytoplasmic to nuclear cellular localization of the Cdkn1c protein regulates growth arrest.
An image-based multiplex autophagosome RNAi screen targeting all Rab GTPases as well as their GAPs and GEFs identifies the Rab GEF SMCR8 as multifaceted autophagy modulator, which regulates kinase activity and gene expression of ULK1.