Results 121 to 130 of about 574,104 (383)

DNA damage shifts circadian clock time via Hausp-dependent Cry1 stabilization

open access: yeseLife, 2015
The circadian transcriptional repressors cryptochrome 1 (Cry1) and 2 (Cry2) evolved from photolyases, bacterial light-activated DNA repair enzymes. In this study, we report that while they have lost DNA repair activity, Cry1/2 adapted to protect genomic ...
Stephanie J Papp   +7 more
doaj   +1 more source

Small modifier, big decision: switching to SUMO mode adds weight to cancer stemness in mammary tumors

open access: yesMolecular Oncology, EarlyView.
Inhibition of protein SUMOylation has been shown to block tumorigenesis; however, the specific mechanisms by which SUMOylation controls the tumor‐initiating capacities remain elusive. Li et al. describe the role of Etv1 SUMOylation in cancer stem cells using mouse models of mammary gland tumorigenesis.
Veronika Yevdokimova, Yannick D. Benoit
wiley   +1 more source

Thalidomide promotes degradation of SALL4, a transcription factor implicated in Duane Radial Ray syndrome

open access: yeseLife, 2018
In historical attempts to treat morning sickness, use of the drug thalidomide led to the birth of thousands of children with severe birth defects. Despite their teratogenicity, thalidomide and related IMiD drugs are now a mainstay of cancer treatment ...
Katherine A Donovan   +7 more
doaj   +1 more source

On subcellular distribution of the zinc finger 469 protein (ZNF469) and observed discrepancy in the localization of endogenous and overexpressed ZNF469

open access: yesFEBS Open Bio, EarlyView.
ZNF469 regulates the expression of genes encoding extracellular matrix proteins. Endogenous ZNF469 is predominantly cytoplasmic, while in transfected cells, it forms aggregates reminiscent of biomolecular condensates, located mainly in the nucleus. These condensates exhibit overlapping staining with proteasomes and are also associated with the mitotic ...
Anne Elisabeth Christensen Mellgren   +8 more
wiley   +1 more source

Exploring the role of mononuclear phagocytes in the epididymis

open access: yesAsian Journal of Andrology, 2015
The onslaught of foreign antigens carried by spermatozoa into the epididymis, an organ that has not demonstrated immune privilege, a decade or more after the establishment of central immune tolerance presents a unique biological challenge.
Nicolas Da Silva, Tegan B Smith
doaj   +1 more source

The role of binding site on the mechanical unfolding mechanism of ubiquitin. [PDF]

open access: yes, 2015
We apply novel atomistic simulations based on potential energy surface exploration to investigate the constant force-induced unfolding of ubiquitin. At the experimentally-studied force clamping level of 100 pN, we find a new unfolding mechanism starting ...
Cao, Penghui   +4 more
core   +1 more source

The role of circular RNAs in regulating cytokine signaling in cancer

open access: yesFEBS Open Bio, EarlyView.
Cytokines present in the tumor microenvironment fuel cancer development. Aberrant expression of circRNAs contributes to cancer progression. Cytokines are involved in regulating circRNA biogenesis. Furthermore, aberrantly expressed circRNAs regulate the expression of ligands, receptors, and downstream effectors involved in cytokine signaling to promote ...
Vandana Joshi   +4 more
wiley   +1 more source

Characterization of a Dominant Negative Mutant of the Cell Cycle Ubiquitin-conjugating Enzyme Cdc34 [PDF]

open access: yes, 1995
The yeast Saccharomyces cerevisiae CDC34 gene encodes a ubiquitin-conjugating enzyme that is required for the cell cycle G(1)/S transition. We show here that a dominant negative Cdc34 protein is generated by simultaneously replacing both Cys and Leu with
Banerjee, Amit   +2 more
core   +2 more sources

Ubiquitin-like Protein Conjugation: Structures, Chemistry, and Mechanism

open access: yesChemical Reviews, 2017
Ubiquitin-like proteins (Ubl’s) are conjugated to target proteins or lipids to regulate their activity, stability, subcellular localization, or macromolecular interactions.
L. Cappadocia, C. Lima
semanticscholar   +1 more source

FEM1B enhances TRAIL‐induced apoptosis in T lymphocytes and monocytes

open access: yesFEBS Open Bio, EarlyView.
FEM1B facilitates TRAIL‐induced apoptosis through distinct mechanisms in T lymphocytes and monocytes. In T lymphocytes, FEM1B engages with TRAF2, leading to a reduction in TRAF2 expression, which subsequently lessens TRAF2's inhibitory influence on caspase‐8.
Chenbo Yang   +5 more
wiley   +1 more source

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