Results 111 to 120 of about 5,161,634 (390)

Modulation of HERG K+ Channels by Chronic Exposure to Activators and Inhibitors of PKA and PKC: Actions Independent of PKA and PKC Phosphorylation

open access: yesCellular Physiology and Biochemistry, 2013
Background: Human ether-a-go-go-related gene (HERG) channel is the major molecular component of the native rapid delayed rectifier K+ current (IKr) that is a crucial determinant of cardiac repolarization.
Liliang Shu   +5 more
doaj   +1 more source

Mechanism of inhibition of Raf-1 by protein kinase A

open access: yesMolecular and Cellular Biology, 1994
The cytoplasmic Raf-1 kinase is essential for mitogenic signalling by growth factors, which couple to tyrosine kinases, and by tumor-promoting phorbol esters such as 12-O-tetradecanoylphorbol-13-acetate, which activate protein kinase C (PKC).
S. Häfner   +9 more
semanticscholar   +1 more source

MD and EPR studies of the structure and dynamics of the MTSL spin-labelled activation loop of the Aurora-A kinase [PDF]

open access: yesarXiv, 2015
The understanding of kinase structure is mostly based on protein crystallography, which is limited by the requirement to trap molecules within a crystal lattice. Therefore, characterisations of the conformational dynamics of the activation loop in solution are important to enhance the understanding of molecular processes related to diseases and to ...
arxiv  

KMT2A degradation is observed in decitabine‐responsive acute lymphoblastic leukemia cells

open access: yesMolecular Oncology, EarlyView.
We demonstrate that decitabine (DEC) not only degrades the DNA methyltransferase DNMT1 but also the leukemic driver lysine methyltransferase KMT2A likely due to structural similarity of the DNA‐binding CXXC domains. DEC influences KMT2A downstream processes and synergizes with menin inhibitor revumenib (REV) to decrease leukemic cell proliferation, and
Luisa Brock   +10 more
wiley   +1 more source

Latent periodicity of serine-threonine and tyrosine protein kinases and another protein families [PDF]

open access: yesMolekularnuya Biologiya (Russian), vol.39, N3, 2005, 2004
We identified latent periodicity in catalytic domains of approximately 85% of serine/threonine and tyrosine protein kinases. Similar results were obtained for other 22 protein domains. We also designed the method of noise decomposition, which is aimed to distinguish between different periodicity types of the same period length. The method is to be used
arxiv  

Polyfunctional CD8+CD226+RUNX2hi effector T cells are diminished in advanced stages of chronic lymphocytic leukemia

open access: yesMolecular Oncology, EarlyView.
CD226+CD8+ T cells express elevated levels of RUNX2, exhibit higher proliferation capacity, cytokines and cytolytic molecules expression, and migratory capacity. In contrast, CD226−CD8+ T cells display an exhausted phenotype associated with the increased expression of co‐inhibitory receptors and impaired effector functions.
Maryam Rezaeifar   +4 more
wiley   +1 more source

Regulation of IKs Potassium Current by Isoproterenol in Adult Cardiomyocytes Requires Type 9 Adenylyl Cyclase

open access: yesCells, 2019
The subunits KCNQ1 and KCNE1 generate the slowly activating, delayed rectifier potassium current, IKs, that responds to sympathetic stimulation and is critical for human cardiac repolarization.
Yong Li   +5 more
doaj   +1 more source

Regulation of Membrane Targeting of the G Protein-coupled Receptor Kinase 2 by Protein Kinase A and Its Anchoring Protein AKAP79*

open access: yesJournal of Biological Chemistry, 2001
The β2 adrenergic receptor (β2AR) undergoes desensitization by a process involving its phosphorylation by both protein kinase A (PKA) and G protein-coupled receptor kinases (GRKs).
M. Cong   +8 more
semanticscholar   +1 more source

MET variants with activating N‐lobe mutations identified in hereditary papillary renal cell carcinomas still require ligand stimulation

open access: yesMolecular Oncology, EarlyView.
MET variants in the N‐lobe of the kinase domain, found in hereditary papillary renal cell carcinoma, require ligand stimulation to promote cell transformation, in contrast to other RTK variants. This suggests that HGF expression in the microenvironment is important for tumor growth in such patients. Their sensitivity to MET inhibitors opens the way for
Célia Guérin   +14 more
wiley   +1 more source

Dephosphorylation specificities of protein phosphatase for cardiac troponin I, troponin T, and sites within troponin T

open access: yesInternational Journal of Biological Sciences, 2006
Protein dephosphorylation by protein phosphatase 1 (PP1), acting in concert with protein kinase C (PKC) and protein kinase A (PKA), is a pivotal regulatory mechanism of protein phosphorylation.
doaj  

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