Results 31 to 40 of about 29,796 (140)

Parkinson Disease-Associated Mutation R1441H in LRRK2 Prolongs the “Active State” of its GTPase Domain [PDF]

, 2014
Mutation in leucine-rich-repeat kinase 2 (LRRK2) is a common cause of Parkinson disease (PD). A disease-causing point mutation R1441H/G/C in the GTPase domain of LRRK2 leads to overactivation of its kinase domain.
Burlak, Christopher, Liao, Jingling, Liu, Dali, Wu, Chun-Xiang, Zhang, Sheng   +4 more
core   +1 more source

Substrate binding disrupts dimerization and induces nucleotide exchange of the chloroplast GTPase Toc33

, 2011
GTPases act as molecular switches to control many cellular processes, including signalling, protein translation and targeting. Switch activity can be regulated by external effector proteins or intrinsic properties, such as dimerization.
Anja Höfle, Aronsson, Becker, Bos, Bourne, Chen, Chen, Danny J. Schnell, Egea, Enrico Schleiff, Fei Wang, Gasper, Ingmundson, Irmgard Sinning, Ivo Tews, Jarvis, Jelic, Jelic, Kessler, Kikuchi, Koenig, Koenig, Kouranov, Lee, Machner, Maik S. Sommer, Meyer, Mislav Oreb, Neher, Oreb, Oreb, Patrick Koenig, Rapoport, Reddick, Scheffzek, Schleiff, Schleiff, Schleiff, Schnell, Sommer, Sun, Sveshnikova, Weibel, Wickner, Yeh, Zheng   +45 more
core   +3 more sources

Template-directed biopolymerization: tape-copying Turing machines

, 2012
DNA, RNA and proteins are among the most important macromolecules in a living cell. These molecules are polymerized by molecular machines. These natural nano-machines polymerize such macromolecules, adding one monomer at a time, using another linear ...
Chowdhury, Debashish, Sharma, Ajeet K.
core   +1 more source

The rab3A-22A chimera prevents sperm exocytosis by stabilizing open fusion pores [PDF]

, 2016
At the final stage of exocytotis, a fusion pore opens between the plasma and a secretory vesicle membranes; typically, when the pore dilates the vesicle releases its cargo.
Bustos, Matias Alberto, De la Iglesia, Paola X., Lucchesi, Ornella, Pocognoni, Cristián Adrián, Quevedo, María Florencia, Tomes, Claudia Nora   +5 more
core   +1 more source

A novel bacterial l-arginine sensor controlling c-di-GMP levels in Pseudomonas aeruginosa [PDF]

, 2018
Nutrients such as amino acids play key roles in shaping the metabolism of microorganisms in natural environments and in host–pathogen interactions.
Cutruzzolà, F., Giardina, G., Janson, G., Leoni, L., Mantoni, F., Paiardini, A., Paone, A., Rampioni, G., Rinaldo, S.   +8 more
core   +1 more source

Molecular determinants of signal transduction in tropomyosin receptor kinases

FEBS Open Bio, EarlyView.
Tropomyosin receptor kinases control critical neuronal functions, but how do the same receptors produce diverse cellular responses? This review explores the structural mechanisms behind Trk signaling diversity, focusing on allosteric modulation and ligand bias.
Giray Enkavi
wiley   +1 more source

Surface topography of microtubule walls decorated with monomeric and dimeric kinesin constructs [PDF]

, 2000
The surface topography of opened-up microtubule walls (sheets) decorated with monomeric and dimeric kinesin motor domains was investigated by freeze-drying and unidirectional metal shadowing.
Doerhoefer, Monika, Gross, Heinz, Hoenger, Andreas, Mandelkow, Eckhard, Song, Young Hwa, Tittmann, Peter, Woehlke, Guenther   +6 more
core   +2 more sources

Peptide‐Induced Ferroelectricity in Charge‐Transfer Supramolecular Materials

Advanced Materials, EarlyView.
Bio‐inspired supramolecular charge‐transfer amphiphiles self‐assemble into nanoribbons in water, where peptide chirality‐induced symmetry breaking generates robust ferroelectricity across multiple systems. These water‐processable organic ferroelectrics also enhance neuronal outgrowth and electrophysiological maturity, offering a versatile strategy for ...
James V. Passarelli, Yang Yang, Cara S. Smith, Jing Hao, Dhwanit R. Dave, Ashwin Narayanan, Zaida Álvarez, Broderick K. Johnson, Kelly A. Marshall, Ivan Fithian, Hiroaki Sai, Ruomeng Qiu, Charlotte L. Stern, Liam C. Palmer, Evangelos Kiskinis, Samuel I. Stupp   +15 more
wiley   +1 more source

Low YTHDC1 Expression Upregulates FSCN1 to Promote Nuclear F‐Actin Formation and Facilitate Double‐strand DNA Breaks Repair in TMZ‐Resistant Glioblastoma

Advanced Science, EarlyView.
This study revealed that low expression of YTHDC1 in TMZ‐resistant GBM cells leads to increased FSCN1 expression, which is suppressed by m6A modification. FSCN1 activates the CDC42/N‐WASP/Arp2/3 axis in the cell nucleus by recruiting the guanine nucleotide exchange factor (GEF) family member FGD1, thereby promoting F‐actin polymerization in the nucleus.
Minglong Yang, Wanxiang Niu, Yuanfei Wang, Peng Chen, Maolin Mu, Xiaoming Zhang, Ben Xu, Shanshan Hu, Chaoshi Niu, Pengfei Wu   +9 more
wiley   +1 more source

A Non‐Mitophagy Activity of BNIP3L/NIX in Amygdala Glutamatergic Neurons is Essential for Contextual Fear Memory Formation

Advanced Science, EarlyView.
Contextual fear conditioning induces BNIP3L‐dependent mitochondrial fission in glutamatergic neurons of the BLA, independently of mitophagy. Loss of BNIP3L elevates Drp1Ser637 phosphorylation, thereby suppressing mitochondrial fission, compromising ATP production, and attenuating excitatory synaptic transmission.
Xingxian Zhang, Xinlei Mo, Xinyu Zhou, Xiaoliang Liu, Guizhi Li, Songhui Hu, Yangyang Lu, Chenze Zhu, Jinxi Feng, Zhitong Chen, Weiwei Hu, Yihui Cui, Zhong Chen, Xiangnan Zhang   +13 more
wiley   +1 more source