Cytoskeletal control of B cell responses to antigens

P Tolar - Nature Reviews Immunology, 2017 - nature.com
The actin cytoskeleton is essential for cell mechanics and has increasingly been implicated
in the regulation of cell signalling. In B cells, the actin cytoskeleton is extensively coupled to …

C1 domains exposed: from diacylglycerol binding to protein–protein interactions

F Colón-González, MG Kazanietz - … et Biophysica Acta (BBA)-Molecular and …, 2006 - Elsevier
C1 domains, cysteine-rich modules originally identified in protein kinase C (PKC) isozymes,
are present in multiple signaling families, including PKDs, chimaerins, RasGRPs …

Glutaminase 2 is a novel negative regulator of small GTPase Rac1 and mediates p53 function in suppressing metastasis

C Zhang, J Liu, Y Zhao, X Yue, Y Zhu, X Wang, H Wu… - Elife, 2016 - elifesciences.org
Glutaminase (GLS) isoenzymes GLS1 and GLS2 are key enzymes for glutamine
metabolism. Interestingly, GLS1 and GLS2 display contrasting functions in tumorigenesis …

Btk regulates B cell receptor-mediated antigen processing and presentation by controlling actin cytoskeleton dynamics in B cells

S Sharma, G Orlowski, W Song - The Journal of Immunology, 2009 - journals.aai.org
The high efficiency of Ag processing and presentation by B cells requires Ag-induced BCR
signaling and actin cytoskeleton reorganization, although the underlying mechanism for …

Guanine nucleotide exchange factors for RhoGTPases: good therapeutic targets for cancer therapy?

G Lazer, S Katzav - Cellular signalling, 2011 - Elsevier
Rho guanosine triphosphatases (GTPases) are a family of small proteins which function as
molecular switches in a variety of signaling pathways following stimulation of cell surface …

Mechanism of redox-mediated guanine nucleotide exchange on redox-active Rho GTPases

J Heo, SL Campbell - Journal of Biological Chemistry, 2005 - ASBMB
Rho GTPases regulate multiple cellular processes including actin cytoskeletal
rearrangements, transcriptional regulation, and oxidant production. The studies described …

Internal dynamics control activation and activity of the autoinhibited Vav DH domain

P Li, IRS Martins, GK Amarasinghe… - Nature structural & …, 2008 - nature.com
Protein motions are important to activity, but quantitative relationships between internal
dynamics and function are not well understood. The Dbl homology (DH) domain of the proto …

Rac-dependent feedforward autoactivation of NOX2 leads to oxidative burst

HM Hoang, HE Johnson, J Heo - Journal of Biological Chemistry, 2021 - ASBMB
NADPH oxidase 2 (NOX2) produces the superoxide anion radical (O 2−), which has
functions in both cell signaling and immune defense. NOX2 is a multimeric-protein complex …

C-reactive protein suppresses insulin signaling in endothelial cells: role of spleen tyrosine kinase

JW Xu, I Morita, K Ikeda, T Miki… - Molecular …, 2007 - academic.oup.com
Although few epidemiological studies have demonstrated that C-reactive protein (CRP) is
related to insulin resistance, no study to date has examined the molecular mechanism. Here …

Redox regulation of RhoA

J Heo, KW Raines, V Mocanu, SL Campbell - Biochemistry, 2006 - ACS Publications
We have previously shown that redox agents including superoxide anion radical and
nitrogen dioxide can react with GXXXXGK (S/T) C motif-containing GTPases (ie, Rac1 …