Results 61 to 70 of about 41,746 (257)

Structural and biochemical characterization of the pleckstrin homology domain of the RhoGEF P-Rex2 and its regulation by PIP3

Journal of Structural Biology: X, 2019
P-Rex family Rho guanine-nucleotide exchange factors are important regulators of cell motility through their activation of a subset of small GTPases. Both P-Rex1 and P-Rex2 have also been implicated in the progression of certain cancers, including breast
Jennifer N. Cash, Prateek V. Sharma, John J.G. Tesmer   +2 more
doaj   +1 more source

ITAM signaling by Vav family Rho guanine nucleotide exchange factors regulates interstitial transit rates of neutrophils in vivo. [PDF]

PLoS ONE, 2009
In response to infection, neutrophils are quickly recruited from the blood into inflamed tissues. The interstitial migration of neutrophils is crucial for the efficient capture and control of rapidly proliferating microbes before microbial growth can ...
Daniel B Graham, Bernd H Zinselmeyer, Francesca Mascarenhas, Ryan Delgado, Mark J Miller, Wojciech Swat   +5 more
doaj   +1 more source

Localization of the translational guanine nucleotide exchange factor eIF2B: A common theme for GEFs?

, 2006
The eukaryotic initiation factor 2B (eIF2B) serves an essential recycling function in protein synthesis. As the guanine nucleotide exchange factor for eIF2, it recycles eIF2 from a GDP to a GTP bound form that is competent for translation initiation ...
Mark P. Ashe, Susan G. Campbell, Ashe, Mark P., Campbell, Susan G., Ashe, Mark P.; id_orcid   +4 more
core   +1 more source

The Rho GDI Rdi1 regulates Rho GTPases by distinct mechanisms [PDF]

, 2008
© 2008 by The American Society for Cell Biology. Under the License and Publishing Agreement, authors grant to the general public, effective two months after publication of (i.e.,.
Sakwa, I, Höfken, T, Just, U, Tiedje, C
core   +1 more source

Intimate Interaction Between Nucleic Acid and Conjugated Polymers in Organic Electrochemical Transistors Enables Ultrasensitive Biomarker Detection

Advanced Materials, EarlyView.
The intimate interaction between negatively charged RNA molecules and conjugated polymers in organic electrochemical transistors (OECTs) in aqueous electrolytes is investigated. It demonstrates that RNA binding reduces the volumetric capacitance of the polymer channel, enabling the development of an ultrasensitive biosensing platform capable of ...
Hong Liu, Naixiang Wang, Anneng Yang, Jiajun Song, Li Li, Iain McCulloch, Helen Ka‐wai Law, Feng Yan   +7 more
wiley   +1 more source

The role of the host—Neutrophil biology

Periodontology 2000, EarlyView., 2023
Abstract Neutrophilic polymorphonuclear leukocytes (neutrophils) are myeloid cells packed with lysosomal granules (hence also called granulocytes) that contain a formidable antimicrobial arsenal. They are terminally differentiated cells that play a critical role in acute and chronic inflammation, as well as in the resolution of inflammation and wound ...
Iain L. C. Chapple, Josefine Hirschfeld, Alpdogan Kantarci, Asaf Wilensky, Lior Shapira   +4 more
wiley   +1 more source

A non-linear system patterns Rab5 GTPase on the membrane

eLife, 2020
Proteins can self-organize into spatial patterns via non-linear dynamic interactions on cellular membranes. Modelling and simulations have shown that small GTPases can generate patterns by coupling guanine nucleotide exchange factors (GEF) to effectors ...
Alice Cezanne, Janelle Lauer, Anastasia Solomatina, Ivo F Sbalzarini, Marino Zerial   +4 more
doaj   +1 more source

S-nitrosylation and nitric oxide-mediated guanine nucleotide exchange

, 2003
Ras is a guanine nucleotide-binding protein that cycles between inactive GDP-bound and active GTP-bound states to regulate a diverse array of cellular processes, including cell growth, apoptosis, and differentiation. The guanine nucleotide-bound state of
Kamesh Pappu, Jason G. Williams, Pappu, K., Sharon L. Campbell, Williams, J. G., Campbell, S. L.   +5 more
core   +1 more source

Protein Disulfide Isomerase Disassembles TDP‐43/G3BP1 Condensates and Antagonizes TDP‐43 Pathological Aggregates

Advanced Science, EarlyView.
Cytoplasmic aggregation of TDP‐43 is a common pathological feature in amyotrophic lateral sclerosis, frontotemporal lobar degeneration, and Alzheimer's disease with TDP‐43 pathology. This study reports that wild‐type PDI slows down phase separation of TDP‐43 through direct interaction with TDP‐43.
Jia‐Qi Liu, Hao Liu, Yu‐Xuan Sun, Yuying Li, Xiangyi Liu, Li‐Qiang Wang, Zhaofei Yang, Qi Fu, Xiaojiao Xu, Jie Chen, Yingshuang Zhang, Jun Zhou, Weidong Le, Mengchao Cui, Yi Liang   +14 more
wiley   +1 more source

Identification of a guanine nucleotide exchange factor for Arf3, the yeast orthologue of mammalian Arf6.

PLoS ONE, 2007
Small G proteins of the Arf and Rab families are fundamental to the organisation and activity of intracellular membranes. One of the most well characterised of these G proteins is mammalian Arf6, a protein that participates in many cellular processes ...
Alison K Gillingham, Sean Munro
doaj   +1 more source