Results 61 to 70 of about 1,944,084 (333)

A CLK1-KKT2 Signaling Pathway Regulating Kinetochore Assembly in Trypanosoma brucei

mBio, 2021
In eukaryotic cells, kinetochores are large protein complexes that link chromosomes to dynamic microtubule tips, ensuring proper segregation and genomic stability during cell division.
Manuel Saldivia, Adam J. M. Wollman, Juliana B. T. Carnielli, Nathaniel G. Jones, Mark C. Leake, Christopher Bower-Lepts, Srinivasa P. S. Rao, Jeremy C. Mottram   +7 more
doaj   +1 more source

Diphthamide synthesis is linked to the eEF2‐client chaperone machinery

FEBS Letters, Volume 599, Issue 9, Page 1260-1268, May 2025.
The diphthamide modification of eukaryotic translation elongation factor 2 (eEF2) is important for accurate protein synthesis. We addressed the potential coordination of de novo eEF2 synthesis with simultaneous or subsequent diphthamide modification. Our work reveals that the co‐chaperones Hgh1 and Cpr7, which are known to support folding of nascent ...
Lars Kaduhr, Klaus Mayer, Raffael Schaffrath, Johannes Buchner, Ulrich Brinkmann   +4 more
wiley   +1 more source

C1q/Tumor Necrosis Factor–Related Protein‐9 Is a Novel Vasculoprotective Cytokine That Restores High Glucose‐Suppressed Endothelial Progenitor Cell Functions by Activating the Endothelial Nitric Oxide Synthase

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Background This study investigated whether gCTRP9 (globular C1q/tumor necrosis factor–related protein‐9) could restore high‐glucose (HG)‐suppressed endothelial progenitor cell (EPC) functions by activating the endothelial nitric oxide synthase (eNOS ...
Qingsong Hu, Wan Qu, Tao Zhang, Jianyi Feng, Xiaobian Dong, Ruqiong Nie, Junyu Chen, Xiaoqing Wang, Changnong Peng, Xiao Ke   +9 more
doaj   +1 more source

CD98hc facilitates B cell proliferation and adaptive humoral immunity. [PDF]

, 2009
The proliferation of antigen-specific lymphocytes and resulting clonal expansion are essential for adaptive immunity. We report here that B cell-specific deletion of the heavy chain of CD98 (CD98hc) resulted in lower antibody responses due to total ...
A Mondino, AP Warren, AW Freidman, C Brakebusch, CA Fenczik, CA Fenczik, CC Feral, CC Feral, Cecille D Browne, CG Lo, CG Proud, Chloé C Féral, CL Abram, D Torrents, DC Otero, DE White, DM Rose, E Arana, F Esteban, FD Batista, FM Burnet, GW Prager, H Tsumura, J Bertran, J Fernandez-Herrera, J Hasbold, JG Cyster, JH Kehrl, JL Walker, Joseph Cantor, K Hara, K Roovers, KB Lin, KL Wolniak, L Kass, L Van Parijs, LA Diaz Jr., MA Schwartz, Mark H Ginsberg, MD Cooper, ML Motti, NC Henderson, R Zent, Raphael Ruppert, RC Rickert, Reinhard Fässler, RK Assoian, RO Hynes, Robert C Rickert, RT Abraham, SG Tangye, SJ Fleire, T Lammermann, T Uinuk-Ool, TN Sims, TT Lu, Y Shimizu   +56 more
core   +2 more sources

Molecular insights into the modulation of the 5HT2A receptor by serotonin, psilocin, and the G protein subunit Gqα

FEBS Letters, Volume 599, Issue 6, Page 876-891, March 2025.
We explore 5HT2A receptor activation, a key target for psychedelic drugs, using molecular dynamics simulations. Without Gqα, the active receptor collapses to an inactive conformation, underscoring the G‐protein's role. Discovery of an intermediate “partially‐open” state and the higher affinity of ligands to the orthosteric binding site provides ...
Niklas Viohl, Ali Asghar Hakami Zanjani, Himanshu Khandelia   +2 more
wiley   +1 more source

Liquiritin and Liquiritigenin Induce Melanogenesis via Enhancement of p38 and PKA Signaling Pathways

Medicines, 2019
Background: Liquiritin (LQ) and its aglycone, liquiritigenin (LQG), are major flavonoids in licorice root (Glycyrrhiza spp.). Our preliminary screening identified LQ and LQG, which promote melanin synthesis in the melanoma cells.
Takuhiro Uto, Tomoe Ohta, Akihisa Yamashita, Shunsuke Fujii, Yukihiro Shoyama   +4 more
doaj   +1 more source

The Occurrence of Valvular Atrial Fibrillation: Involvement of NGF/TrKA Signaling Pathway

Journal of Investigative Surgery, 2021
Objective Nerve growth factor (NGF) and tropomyosin kinase receptors A (TrKA) exert a crucial effect on the regulation of autonomic nervous system which contributes to the progress of atrial fibrillation (AF).
Qianli Wang, Yong Zhao, Xin Dong, Cong Li, Lin Zhou, Chengwei Zou, Xiaodong Li, Nannan Zhou, Junni Liu, Yuanyuan Sun, Jianchun Wang   +10 more
doaj   +1 more source

Protein Kinase C-related Kinase and ROCK Are Required for Thrombin-induced Endothelial Cell Permeability Downstream from G{alpha}12/13 and G{alpha}11/q [PDF]

The Journal of Biological Chemistry 283, 44 (2008) 29888-96, 2008
Increase in vascular permeability occurs under many physiological conditions and is central in diverse human pathologies. Thrombin is a pro-coagulant serine protease, which causes the local loss of endothelial barrier integrity thereby enabling the rapid extravasation of plasma proteins and the local formation of fibrin-containing clots.
arxiv   +1 more source

Synergistic antitumour activity of RAF265 and ZSTK474 on human TT medullary thyroid cancer cells [PDF]

, 2015
Medullary thyroid cancer (MTC) is an aggressive malignancy responsible for up to 14% of all thyroid cancer-related deaths. It is characterized by point mutations in the rearranged during transfection (RET) proto-oncogene.
Barollo, Susi, Bertazza, Loris, Boscaro, Marco, Cavedon, Elisabetta, Faggian, Diego, Mian, Caterina, Pelizzo, MARIA ROSA, Pezzani, Raffaele, Plebani, Mario, Radu, CLAUDIA-MARIA, Rubin, Beatrice, Simioni, Paolo   +11 more
core   +1 more source

Interaction between bacterial phytochromes Agp1 and Agp2 of Agrobacterium fabrum by fluorescence resonance energy transfer and docking studies

FEBS Letters, Volume 599, Issue 6, Page 848-865, March 2025.
The interaction between Agrobacterium fabrum phytochromes Agp1 and Agp2 was studied using FRET. Full‐length and truncated proteins with varied label positions provided spatial insights, narrowing down from many docking models to three. These models explain Agp2's reduction in Agp1 autophosphorylation, with Arg83 of Agp2 specifically evolved to interact
Afaf El Kurdi, Gero Kaeser, Patrick Scheerer, David Hoffmann, Ebru Akkus, Marcus Elstner, Norbert Krauß, Tilman Lamparter   +7 more
wiley   +1 more source