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Structure of human RNA polymerase III.
(NATURE RESEARCH, 2020-12-17)
In eukaryotes, RNA Polymerase (Pol) III is specialized for the transcription of tRNAs and other short, untranslated RNAs. Pol III is a determinant of cellular growth and lifespan across eukaryotes. Upregulation of Pol III ...
An E2-ubiquitin thioester-driven approach to identify substrates modified with ubiquitin and ubiquitin-like molecules.
(NATURE PUBLISHING GROUP, 2018-11-14)
Covalent modifications of proteins with ubiquitin and ubiquitin-like molecules are instrumental to many biological processes. However, identifying the E3 ligase responsible for these modifications remains a major bottleneck ...
An atypical LIR motif within UBA5 (ubiquitin like modifier activating enzyme 5) interacts with GABARAP proteins and mediates membrane localization of UBA5.
(TAYLOR & FRANCIS INC, 2019-04-16)
Short linear motifs, known as LC3-interacting regions (LIRs), interact with mactoautophagy/autophagy modifiers (Atg8/LC3/GABARAP proteins) via a conserved universal mechanism. Typically, this includes the occupancy of 2 ...
Autoinhibition Mechanism of the Ubiquitin-Conjugating Enzyme UBE2S by Autoubiquitination.
(CELL PRESS, 2019-08-06)
Ubiquitin-conjugating enzymes (E2s) govern key aspects of ubiquitin signaling. Emerging evidence suggests that the activities of E2s are modulated by posttranslational modifications; the structural underpinnings, however, ...
PP1 and PP2A Use Opposite Phospho-dependencies to Control Distinct Processes at the Kinetochore.
(CELL PRESS, 2019-08-20)
PP1 and PP2A-B56 are major serine/threonine phosphatase families that achieve specificity by colocalizing with substrates. At the kinetochore, however, both phosphatases localize to an almost identical molecular space and ...
Overexpression of Claspin and Timeless protects cancer cells from replication stress in a checkpoint-independent manner.
(NATURE PUBLISHING GROUP, 2019-02-22)
Oncogene-induced replication stress (RS) promotes cancer development but also impedes tumor growth by activating anti-cancer barriers. To determine how cancer cells adapt to RS, we have monitored the expression of different ...
A high-content RNAi screen reveals multiple roles for long noncoding RNAs in cell division.
(NATURE PUBLISHING GROUP, 2020-04-15)
Genome stability relies on proper coordination of mitosis and cytokinesis, where dynamic microtubules capture and faithfully segregate chromosomes into daughter cells. With a high-content RNAi imaging screen targeting more ...
Systematic Discovery of Short Linear Motifs Decodes Calcineurin Phosphatase Signaling.
(CELL PRESS, 2020-07-16)
Short linear motifs (SLiMs) drive dynamic protein-protein interactions essential for signaling, but sequence degeneracy and low binding affinities make them difficult to identify. We harnessed unbiased systematic approaches ...
The complete structure of the human TFIIH core complex.
(ELIFE SCIENCES PUBLICATIONS LTD, 2019-03-12)
Transcription factor IIH (TFIIH) is a heterodecameric protein complex critical for transcription initiation by RNA polymerase II and nucleotide excision DNA repair. The TFIIH core complex is sufficient for its repair ...
Conditional control of fluorescent protein degradation by an auxin-dependent nanobody.
(NATURE PUBLISHING GROUP, 2018-08-17)
The conditional and reversible depletion of proteins by auxin-mediated degradation is a powerful tool to investigate protein functions in cells and whole organisms. However, its wider applications require fusing the ...