Results 111 to 120 of about 73,799 (301)

Two Decades of Optogenetic Tools: A Retrospective and a Look Ahead

Advanced Genetics, EarlyView.
Optogenetics provides up to millisecond scale, cell type‐specific control of biology using light‐sensitive proteins. This review chronicles two decades of tool development, from microbial rhodopsins and photoactivated enzymes to allosteric switches, surveys broad applications in neuroscience, molecular and cell biology, cardiology, immunology, and ...
Xiao Duan, Mo Zhu, Shiqiang Gao
wiley   +1 more source

How the initiating ribosome copes with ppGpp to translate mRNAs.

PLoS Biology, 2020
During host colonization, bacteria use the alarmones (p)ppGpp to reshape their proteome by acting pleiotropically on DNA, RNA, and protein synthesis. Here, we elucidate how the initiating ribosome senses the cellular pool of guanosine nucleotides and ...
Daria S Vinogradova, Victor Zegarra, Elena Maksimova, Jose Alberto Nakamoto, Pavel Kasatsky, Alena Paleskava, Andrey L Konevega, Pohl Milón   +7 more
doaj   +1 more source

Structure and Function of a Mycobacterial NHEJ DNA Repair Polymerase [PDF]

, 2006
Non homologous end-joining (NHEJ)-mediated repair of DNA double-strand breaks in prokaryotes requires Ku and a specific multidomain DNA ligase (LigD).
Aidan J. Doherty, Angel J. Picher, Arezi, Augustin, Bowater, Chen, Chen, Critchlow, Daley, Darren Thompson, DeFazio, Della, Dominguez, Emsley, Garcia-Diaz, Gavin C. Fox, Gong, Gong, Ito, Iyer, Jones, Krejci, La Fortelle, Lao-Sirieix, Lao-Sirieix, Lipps, Luis Blanco, Ma, Ma, Mahajan, Matsumoto, McCoy, Murshudov, Nick McElhinney, Nick McElhinny, Nick McElhinny, Nigel C. Brissett, Paula Andrade, Paull, Picher, Pitcher, Pitcher, Potterton, Potterton, Powell, Prasad, Ramsden, Raquel Juarez, Robert S. Pitcher, Ruiz, Rydberg, Singhal, Steitz, Tseng, Weller, Wilson, Winn, Wu, Zhang, Zhu   +59 more
core   +1 more source

A Putative Guanosine Triphosphate Cyclohydrolase I Named CaGCH1 Is Involved in Hyphal Branching and Fruiting Development in Cyclocybe aegerita. [PDF]

Front Microbiol, 2022
Tao N, Cheng B, Chai H, Cui X, Ma Y, Yan J, Zhao Y, Chen W.   +7 more
europepmc   +1 more source

The mechanisms in glucose metabolism of aging hippocampus

Ibrain, EarlyView.
Cognitive decline in elders stems from the irreversible loss and functional decline of neurons, with the hippocampus being particularly susceptible to age‐related neuronal deterioration. Glucose acts as the primary fuel for the brain, and a constant provision of glucose to the hippocampus is essential for memory and cognitive functions.
Rui He, Fuxing Zhao, Zhiyu Yang, Tingting Wang, Yaohui Zhang, Jinglan Quan, Gaohong Zhu   +6 more
wiley   +1 more source

NF-KB protein purification from bovine spleen: Nucleotide stimulation and binding site specificity [PDF]

, 1988
The activity of the enhancer for the κ immunoglobulin light chain gene critically depends on the presence in the nucleus of the NF-κB protein. We purified NF-κB over 50,000-fold and identified two protein species, 42 and 44 kDa, that could be eluted and ...
Baltimore, David, Gifford, Ann, Kuang, Anna, Lenardo, Michael J.   +3 more
core  

Post-Translational Modification and Subcellular Distribution of Rac1: An Update

Cells, 2018
Rac1 is a small GTPase that belongs to the Rho family. The Rho family of small GTPases is a subfamily of the Ras superfamily. The Rho family of GTPases mediate a plethora of cellular effects, including regulation of cytoarchitecture, cell size, cell ...
Abdalla Abdrabou, Zhixiang Wang
doaj   +1 more source

Alterations and mechanistic insights of gut microbiota and its metabolites in type 2 diabetes mellitus and Alzheimer's disease

iMetaOmics, EarlyView.
This narrative review uniquely addresses how gut microbiota‐derived metabolites mediate overlapping pathologies of insulin resistance, neuroinflammation, and amyloidogenesis in type 2 diabetes mellitus (T2DM) and Alzheimer's disease (AD), proposing a framework for dual therapeutic targeting.
Guangyi Xu, Yu An, Yage Du, Zhaoming Cao, Jie Zheng, Jingya Wang, Tingyi Li, Xingen Lei, Yanhui Lu   +8 more
wiley   +1 more source

Kinetic and Structural Analysis of the Mg2+ -binding Site of the Guanine Nucleotide-binding Protein p21 H-ras. [PDF]

, 1993
The coordination and binding of the Mg2+ ion in the nucleotide−binding site of p21 have been investigated using site−directed mutagenesis, kinetic methods, and phosphorous NMR.
Borasio, Gian Domenico, Goody, R. S., John, J., Rensland, H., Schlichting, I., Vetter, I., Wittinghofer, A.   +6 more
core  

Anti-cancer Effects of a Chemically Modified miR-143 on Bladder Cancer by Either Systemic or Intravesical Treatment

Molecular Therapy: Methods & Clinical Development, 2019
We developed a novel chemically modified miR-143 (miR-143#12), and with it we investigated the contribution of miR-143 to the pathogenesis of bladder cancer (BC), in which miR-143 is extremely downregulated.
Yuki Yoshikawa, Kohei Taniguchi, Takuya Tsujino, Kazuki Heishima, Teruo Inamoto, Tomoaki Takai, Koichiro Minami, Haruhito Azuma, Kanjiro Miyata, Kotaro Hayashi, Kazunori Kataoka, Yukihiro Akao   +11 more
doaj   +1 more source