Structure and possible function of a G-quadruplex in the long terminal repeat of the proviral HIV-1 genome [PDF]
, 2016 open8The long terminal repeat (LTR) of the proviral human immunodeficiency virus (HIV)-1 genome is integral to virus transcription and host cell infection.
core +1 more source
Deciphering the Impact of RAC1‐SPTAN1 in ARPKD Cystogenesis Using Multifaceted Models
Advanced Science, EarlyView.Distal/connecting tubules expressing SLC8A1 have been suggested as a potential origin of ARPKD cysts. SPTAN1 has been identified as a key molecule in ARPKD cyst formation. Restoring SPTAN1 in PKHD1−/− organoids reduced cyst formation, normalized calcium levels, and decreased RAC1/c‐FOS expression, highlighting SPTAN1's role in ARPKD and the potential ...
Shohei Kuraoka +9 more
wiley +1 more source
Integrated conformational and lipid-sensing regulation of endosomal ArfGEF BRAG2. [PDF]
PLoS Biology, 2013 The mechanisms whereby guanine nucleotide exchange factors (GEFs) coordinate their subcellular targeting to their activation of small GTPases remain poorly understood.
Kaheina Aizel +6 more
doaj +1 more source
Post‐Translational Regulation of CD8+ T Cell Fate and Dysfunction in Tumor Immunity
Advanced Science, EarlyView.This review delineates how post‐translational modifications (PTMs) function as a central regulatory interface governing CD8+ T cell activation, differentiation, persistence, and exhaustion in antitumor immunity. By integrating antigenic, metabolic, and microenvironmental cues, diverse PTM programs coordinate transcriptional and chromatin states that ...
Zihao Zhou +8 more
wiley +1 more source
Thermodynamic and kinetic insights into stop codon recognition by release factor 1. [PDF]
, 2014 Stop codon recognition is a crucial event during translation termination and is performed by class I release factors (RF1 and RF2 in bacterial cells). Recent crystal structures showed that stop codon recognition is achieved mainly through a network of ...
Joseph, Simpson +2 more
core
An Activating Mutation in sos-1 Identifies Its Dbl Domain as a Critical Inhibitor of the Epidermal Growth Factor Receptor Pathway during Caenorhabditis elegans Vulval Development [PDF]
, 2007 Proper regulation of receptor tyrosine kinase (RTK)-Ras-mitogen-activated protein kinase (MAPK) signaling pathways is critical for normal development and the prevention of cancer.
Elgort, Marc G. +7 more
core +2 more sources
American Journal of Medical Genetics Part A, EarlyView.ABSTRACT RASopathies are clinically overlapping neurodevelopmental syndromes resulting from germline mutations in genes involved in the rat sarcoma/mitogen‐activated protein kinases (RAS/MAPK) pathway. Historically, RASopathies have been described by clinical phenotypes, such as Noonan syndrome and Neurofibromatosis type I.
Anastasia‐Vasiliki Madenidou +6 more
wiley +1 more source
The ADP ribosylation factor-nucleotide exchange factors Gea1p and Gea2p have overlapping, but not redundant functions in retrograde transport from the Golgi to the endoplasmic reticulum [PDF]
, 2001 The activation of the small ras-like GTPase Arf1p requires the action of guanine nucleotide exchange factors. Four Arf1p guanine nucleotide exchange factors have been identified in yeast: Sec7p, Syt1p, Gea1p, and its homologue Gea2p.
Spang, A. +3 more
core +1 more source
Loss of ARHGEF6 Causes Hair Cell Stereocilia Deficits and Hearing Loss in Mice
Frontiers in Molecular Neuroscience, 2018 ARHGEF6 belongs to the family of guanine nucleotide exchange factors (GEFs) for Rho GTPases, and it specifically activates Rho GTPases CDC42 and RAC1.
Chengwen Zhu +35 more
doaj +1 more source
Interaction of Gα₁₂ with Gα₁₃ and Gα_q signaling pathways [PDF]
, 2002 The G(12) subfamily of heterotrimeric G-proteins consists of two members, G(12) and G(13). Gene-targeting studies have revealed a role for G(13) in blood vessel development. Mice lacking the a subunit of G(13) die around embryonic day 10 as the result of
Gu, Jennifer L. +4 more
core