Results 131 to 140 of about 2,233,123 (318)

Cell–cell signalling: Frog frizbees [PDF]

open access: yesCurrent Biology, 1997
The recent discovery that Frizzled proteins are receptor for Wnts has been quickly followed by the identification of a secreted protein, Frzb, that is related to Frizzled, expressed by the Spemann organizer in frog embryos and can bind to and antagonize Wnt developmental signalling molecules.
openaire   +2 more sources

Activation of the Hedgehog signaling pathway in T-lineage cells inhibits TCR repertoire selection in the thymus and peripheral T-cell activation

open access: yes, 2007
TCR signal strength is involved in many cell fate decisions in the T-cell lineage. Here, we show that transcriptional events induced by Hedgehog (Hh) signaling reduced TCR signal strength in mice.
Drakopoulou, E   +7 more
core  

Targeting Aberrant RAS/RAF/MEK/ERK Signaling for Cancer Therapy

open access: yes, 2020
The RAS/RAF/MEK/ERK (MAPK) signaling cascade is essential for cell inter- and intra-cellular communication, which regulates fundamental cell functions such as growth, survival, and differentiation.
Ufuk Degirmenci, Jiancheng Hu, Mei Wang
core   +1 more source

Specification of BMP signaling [PDF]

open access: yes, 2019
Bone Morphogenetic Proteins (BMPs) together with the Growth and Differentiation Factors (GDFs) form the largest subgroup of the Transforming Growth Factor (TGF)β family and represent secreted growth factors, which play an essential role in many aspects ...
Mueller, Thomas D.   +3 more
core   +1 more source

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

open access: yesFEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai   +4 more
wiley   +1 more source

Replication-competent adenovirus reporters utilizing endogenous viral expression architecture

open access: yesJournal of Virology
Adenoviruses are double-stranded DNA viruses widely used as platforms for vaccines, oncolytics, and gene delivery. However, tools for studying adenoviral gene expression in real time during infection remain limited. Here, we describe a set of fluorescent
Claire M. O’Brien   +6 more
doaj   +1 more source

TIA1 oxidation inhibits stress granule assembly and sensitizes cells to stress-induced apoptosis

open access: yesNature Communications, 2016
Cytoplasmic stress granules (SG) are intracellular aggregates that suppress translation and sequester apoptosis regulatory factors. Here the authors show that reactive oxygen species oxidise the SG-nucleating protein TIA1, preventing SG formation and ...
Kyoko Arimoto-Matsuzaki   +2 more
doaj   +1 more source

Rab14 regulates the transport of human papillomavirus to the trans‐Golgi network for infectious cell entry

open access: yesFEBS Letters, EarlyView.
This study reveals that the small GTPase Rab14 is necessary for human papillomavirus (HPV) infection and plays an essential role in the transport of virions to the trans‐Golgi network (TGN). HPV in the early endosome (EE), which harbors GTP‐bound Rab14, is transported to the TGN through the switch of Rab14 from its GTP‐bound to GDP‐bound form.
Yoshiyuki Ishii, Iwao Kukimoto
wiley   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

open access: yesFEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto   +3 more
wiley   +1 more source

Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations

open access: yesFEBS Letters, EarlyView.
The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas   +6 more
wiley   +1 more source

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