Results 51 to 60 of about 120,482 (333)

Dammarenediol II enhances etoposide‐induced apoptosis by targeting O‐GlcNAc transferase and Akt/GSK3β/mTOR signaling in liver cancer

open access: yesMolecular Oncology, EarlyView.
Etoposide induces DNA damage, activating p53‐dependent apoptosis via caspase‐3/7, which cleaves PARP1. Dammarenediol II enhances this apoptotic pathway by suppressing O‐GlcNAc transferase activity, further decreasing O‐GlcNAcylation. The reduction in O‐GlcNAc levels boosts p53‐driven apoptosis and influences the Akt/GSK3β/mTOR signaling pathway ...
Jaehoon Lee   +8 more
wiley   +1 more source

Posttranslational Modification Biology of Glutamate Receptors and Drug Addiction

open access: yesFrontiers in Neuroanatomy, 2011
Posttranslational covalent modifications of glutamate receptors remain a hot topic. Early studies have established that this family of receptors, including almost all ionotropic and metabotropic glutamate receptor subtypes, undergoes active ...
Li-Min eMao   +5 more
doaj   +1 more source

Dynamics of Posttranslational Modifications of p53 [PDF]

open access: yesComputational and Mathematical Methods in Medicine, 2014
The latest experimental evidence indicates that acetylation of p53 at K164 (lysine 164) and K120 may induce directly cell apoptosis under severe DNA damage. However, previous cell apoptosis models only studied the effects of active and/or inactive p53, that is, phosphorylation/dephosphorylation of p53.
Fan, Qing-Duan   +2 more
openaire   +3 more sources

Arginylation as a posttranslational protein modification [PDF]

open access: yes, 2012
Arginilacija je tRNA ovisna posttranslacijska modifikacija u kojoj se arginin prenosi s molekule tRNA, najčešće na amino skupinu proteina određenih aminokiselina.
Cvrtila, Adam
core   +2 more sources

APLF (C2orf13) is a novel component of poly(ADP-ribose) signaling in mammalian cells [PDF]

open access: yes, 2008
APLF is a novel protein of unknown function that accumulates at sites of chromosomal DNA strand breakage via forkhead-associated (FHA) domain-mediated interactions with XRCC1 and XRCC4.
Caldecott, Keith W   +4 more
core   +3 more sources

Homologous expression and purification of human HAX‐1 for structural studies

open access: yesFEBS Open Bio, EarlyView.
This research protocol provides detailed instructions for cloning, expressing, and purifying large quantities of the intrinsically disordered human HAX‐1 protein, N‐terminally fused to a cleavable superfolder GFP, from mammalian cells. HAX‐1 is predicted to undergo posttranslational modifications and to interact with membranes, various cellular ...
Mariana Grieben
wiley   +1 more source

Identification of ‘erasers’ for lysine crotonylated histone marks using a chemical proteomics approach

open access: yeseLife, 2014
Posttranslational modifications (PTMs) play a crucial role in a wide range of biological processes. Lysine crotonylation (Kcr) is a newly discovered histone PTM that is enriched at active gene promoters and potential enhancers in mammalian cell genomes ...
Xiucong Bao   +9 more
doaj   +1 more source

Endomannosidase undergoes phosphorylation in the Golgi apparatus [PDF]

open access: yes, 2017
Glucose residues from N-linked oligosaccharides are removed by glucosidases I and II in the endoplasmic reticulum (ER) or by the alternate endomannosidase pathway in the Golgi apparatus.
Guhl, Bruno   +3 more
core  

Pharmacologically blocking p53-dependent apoptosis protects intestinal stem cells and mice from radiation. [PDF]

open access: yes, 2015
Exposure to high levels of ionizing radiation (IR) leads to debilitating and dose-limiting gastrointestinal (GI) toxicity. Using three-dimensional mouse crypt culture, we demonstrated that p53 target PUMA mediates radiation-induced apoptosis via a cell ...
Cramer, Julie M   +14 more
core   +2 more sources

Anticancer sensitivities and biological characteristics of HCT116 cells resistant to the selective poly(ADP‐ribose) glycohydrolase inhibitor

open access: yesFEBS Open Bio, EarlyView.
We analyzed alterations of PAR metabolism‐related proteins in PARG inhibitor‐resistant HCT116RPDD cells. Although PARG levels remained unchanged, HCT116RPDD cells exhibited reduced PARP1 and ARH3 expression and elevated PAR levels. Interestingly, HCT116RPDD cells exhibited slightly elevated intracellular NAD+/NADH and ATP levels. Our findings suggest a
Kaede Tsuda, Yoko Ogino, Akira Sato
wiley   +1 more source

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