Results 101 to 110 of about 1,156,973 (433)

Signal processing in the TGF-beta superfamily ligand-receptor network [PDF]

open access: yesPLoS Comput Biol. 2006 Jan;2(1):e3. Epub 2006 Jan 27., 2005
The TGF-beta pathway plays a central role in tissue homeostasis and morphogenesis. It transduces a variety of extracellular signals into intracellular transcriptional responses that control a plethora of cellular processes, including cell growth, apoptosis, and differentiation.
arxiv   +1 more source

The tyrosine phosphatase CD148 is an essential positive regulator of platelet activation and thrombosis [PDF]

open access: yes, 2009
Platelets play a fundamental role in hemostasis and thrombosis. They are also involved in pathologic conditions resulting from blocked blood vessels, including myocardial infarction and ischemic stroke.
Abtahian   +79 more
core   +2 more sources

Identification of novel small molecule inhibitors of ETS transcription factors

open access: yesFEBS Letters, EarlyView.
ETS transcription factors play an essential role in tumourigenesis and are indispensable for sprouting angiogenesis, a hallmark of cancer, which fuels tumour expansion and dissemination. Thus, targeting ETS transcription factor function could represent an effective, multifaceted strategy to block tumour growth. The evolutionarily conserved E‐Twenty‐Six
Shaima Abdalla   +9 more
wiley   +1 more source

Optogenetic manipulation of Gq- and Gi/o-coupled receptor signaling in neurons and heart muscle cells

open access: yeseLife, 2023
G-protein-coupled receptors (GPCRs) transmit signals into cells depending on the G protein type. To analyze the functions of GPCR signaling, we assessed the effectiveness of animal G-protein-coupled bistable rhodopsins that can be controlled into active ...
Hanako Hagio   +10 more
doaj   +1 more source

Maximum likelihood and the single receptor [PDF]

open access: yes, 2009
Biological cells are able to accurately sense chemicals with receptors at their surfaces, allowing cells to move towards sources of attractant and away from sources of repellent. The accuracy of sensing chemical concentration is ultimately limited by the random arrival of particles at the receptors by diffusion.
arxiv   +1 more source

A universal lower bound on the free energy cost of molecular measurements [PDF]

open access: yesPhys. Rev. E 95, 062410 (2017), 2016
The living cell uses a variety of molecular receptors to read and process chemical signals that vary in space and time. We model the dynamics of such molecular level measurements as Markov processes in steady state, with a coupling between the receptor and the signal. We prove exactly that, when the the signal dynamics is not perturbed by the receptors,
arxiv   +1 more source

The cytoskeletal control of B cell receptor and integrin signaling in normal B cells and chronic lymphocytic leukemia

open access: yesFEBS Letters, EarlyView.
In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley   +1 more source

GATA Factor-G-Protein-Coupled Receptor Circuit Suppresses Hematopoiesis

open access: yesStem Cell Reports, 2016
Hematopoietic stem cells (HSCs) originate from hemogenic endothelium within the aorta-gonad-mesonephros (AGM) region of the mammalian embryo. The relationship between genetic circuits controlling stem cell genesis and multi-potency is not understood.
Xin Gao   +6 more
doaj   +1 more source

A complex structure of arrestin-2 bound to a G protein-coupled receptor

open access: yesCell Research, 2019
Arrestins comprise a family of signal regulators of G-protein-coupled receptors (GPCRs), which include arrestins 1 to 4. While arrestins 1 and 4 are visual arrestins dedicated to rhodopsin, arrestins 2 and 3 (Arr2 and Arr3) are β-arrestins known to ...
W. Yin   +18 more
semanticscholar   +1 more source

Spatial intensity distribution analysis quantifies the extent and regulation of homodimerization of the secretin receptor [PDF]

open access: yes, 2017
Previous studies have indicated that the G protein-coupled secretin receptor is present as a homo-dimer, organized through symmetrical contacts in transmembrane domain IV, and that receptor dimerization is critical for high potency signalling by secretin.
Harikumar, Kaleeckal G.   +4 more
core   +2 more sources

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