Results 51 to 60 of about 31,206 (230)

PIP2 Reshapes Membranes through Asymmetric Desorption [PDF]

Biophysical Journal, 2019
Phosphatidylinositol-4,5-bisphosphate (PIP2) is an important signaling lipid in eukaryotic cell plasma membranes, playing an essential role in diverse cellular processes. The headgroup of PIP2 is highly negatively charged, and this lipid displays a high critical micellar concentration compared to housekeeping phospholipid analogs.
Sankalp Shukla, Rui Jin, Jaclyn Robustelli, Zachary E. Zimmerman, Tobias Baumgart   +4 more
openaire   +2 more sources

The C‐terminal truncated splicing variant of NK1R negatively modulates substance P‐stimulated NK1R signaling

FEBS Open Bio, EarlyView.
The neurokinin 1 receptor exists as full‐length (NK1L) and C‐terminally truncated (NK1S) splice variants. We show that NK1S heterodimerizes with NK1L, impairing Gαq coupling and Ca2+ mobilization while enhancing β‐arrestin1 recruitment. NK1S suppresses substance P‐driven gene expression and cell migration, revealing NK1S as an endogenous biased ...
Lan Phuong Nguyen, Duc Trung Nguyen, Minyoung Cho, Jihun Kim, Soyeon In, Thai Uy Nguyen, Sunghoon Hurh, Beom Jin Park, Jong‐Ik Hwang   +8 more
wiley   +1 more source

ATP‐Mediated Bidirectional Communication Between Natural and Artificial Cells for Controlled Bioreactions

Advanced Functional Materials, EarlyView.
Establishment of bidirectional communication behavior between natural and artificial cells. The first type of communication from natural dendritic cells to artificial polymeric cells was achieved via ATP release after cell lysis. The released ATP was taken up via gated UV‐controlled permeability increase of the polymeric membrane for performing ...
Ilona Kalte, Tsvetomir Ivanov, Leonhard Seufert, Shoupeng Cao, Lucas Caire da Silva, Volker Mailänder, Katharina Landfester   +6 more
wiley   +1 more source

The RNA-dependent association of phosphatidylinositol 4,5-bisphosphate with intrinsically disordered proteins contribute to nuclear compartmentalization.

PLoS Genetics
The RNA content is crucial for the formation of nuclear compartments, such as nuclear speckles and nucleoli. Phosphatidylinositol 4,5-bisphosphate (PIP2) is found in nuclear speckles, nucleoli, and nuclear lipid islets and is involved in RNA polymerase I/
Martin Sztacho, Jakub Červenka, Barbora Šalovská, Ludovica Antiga, Peter Hoboth, Pavel Hozák   +5 more
doaj   +1 more source

Genetic Ablation and Multi‐Omics Profiling Reveal CEP55 as a Key Driver of Tumorigenesis in Diverse Cancer Models

Advanced Science, EarlyView.
Genetic ablation of Cep55 in Pten‐deficient mouse models delays tumorigenesis. Integrated multi‐omics analyses (proteomics, phosphoproteomics, and spatial transcriptomics) reveal that CEP55 regulates oncogenic signaling (RAS/ERK, PI3K/AKT), integrin/FAK‐mediated adhesion, extracellular matrix (ECM) remodeling, and endocytosis.
Behnam Rashidieh, Yuanhao Yang, Amanda Louise Bain, Phillip Theron, Catharina Vosloo, Sahar Keshvari, Parinaz Ahangar, Brydie Bowden, Simon M. Tria, Ben B. Wang, Sandra Isenmann, Nicholas J. Westra van Holthe, Zherui Xiong, Hani Vu, Sowmya Sharma, Asmerom Sengal, J. Alejandro Lopez, John Finnie, Antonella Papa, Pascal H.G. Duijf, Quan Nguyen, Pirjo M. Apaja, Kum Kum Khanna   +22 more
wiley   +1 more source

Small Nucleolar RNA from S. cerevisiae Binds to Phosphatidylinositol 4,5-Bisphosphate

Non-Coding RNA
Background: snoRNAs have traditionally been known for their role as guides in post-transcriptional rRNA modifications. Previously, our research group identified several RNAs that may bind to PIP2 with LIPRNA-seq.
Irma A. Jiménez-Ramírez, Miguel A. Uc-Chuc, Luis Carlos Rodríguez Zapata, Enrique Castaño   +3 more
doaj   +1 more source

Phosphoinositide-mediated oligomerization of a defensin induces cell lysis

eLife, 2014
Cationic antimicrobial peptides (CAPs) such as defensins are ubiquitously found innate immune molecules that often exhibit broad activity against microbial pathogens and mammalian tumor cells.
Ivan KH Poon, Amy A Baxter, Fung T Lay, Grant D Mills, Christopher G Adda, Jennifer AE Payne, Thanh Kha Phan, Gemma F Ryan, Julie A White, Prem K Veneer, Nicole L van der Weerden, Marilyn A Anderson, Marc Kvansakul, Mark D Hulett   +13 more
doaj   +1 more source

B Cells are Activated via a Nanoporous Interface that Stabilizes Microvilli and Engages Mechanosensitive Ion Channels

Advanced Science, EarlyView.
B cells can be activated independently of antigen recognition via mechanical stimulation through nanoporous substrates. Exposure to such substrates induced B cell microvilli extension into the pores, intracellular Ca2+ signaling, phosphorylation of signaling proteins, and CD69 expression.
Nozie D. Aghaizu, Willi Weber, Nadine Strempel, Asya Polat, Enrico Klotzsch   +4 more
wiley   +1 more source

Identification of the Conformational transition pathway in PIP2 Opening Kir Channels

, 2015
The gating of Kir channels depends critically on phosphatidylinositol 4,5-bisphosphate (PIP2), but the detailed mechanism by which PIP2 regulates Kir channels remains obscure.
Logothetis DE, Liu YZ, Chen YF, Pang CL, Zhang HL, Yu H, Li JW, Zhan Y, An HL, Long M(龙勉), Lv SQ(吕守芹), An, HL (reprint author), Hebei Univ Technol, Inst Biophys, Sch Sci, Key Lab Mol Biophys, Tianjin 300401, Hebei Province, Peoples R China., Zhang SH   +12 more
core   +1 more source

PIP2 inhibits pore opening of the cyclic nucleotide-gated channel SthK

Nature Communications
The signaling lipid phosphatidylinositol-4,5-bisphosphate (PIP2) regulates many ion channels. It inhibits eukaryotic cyclic nucleotide-gated (CNG) channels while activating their relatives, the hyperpolarization-activated and cyclic nucleotide-modulated (
Oliver Thon, Zhihan Wang, Philipp A. M. Schmidpeter, Crina M. Nimigean   +3 more
doaj   +1 more source