Results 41 to 50 of about 272,567 (316)

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Minocycline Susceptibility and tetB Gene in Carbapenem-Resistant Acinetobacter baumannii in Taiwan

open access: yesInfection and Drug Resistance, 2022
Jia-Ling Yang,1 Chia-Jui Yang,2,3 Yu-Chung Chuang,1 Wang-Huei Sheng,1 Yee-Chun Chen,1 Shan-Chwen Chang1 1Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan, Republic of China; 2Department of Internal Medicine, Far ...
Yang JL   +5 more
doaj  

Effects of two efflux pump inhibitors on the drug susceptibility of Riemerella anatipestifer isolates from China

open access: yesJournal of Integrative Agriculture, 2016
The objective of this study was to verify the supposition that efflux might be involved in the drug resistance of Riemerella anatipestifer isolates. Two broad-spectrum efflux pump inhibitors, carbonyl cyanide 3-chlorophenylhydrazone (CCCP) and Phe-Arg-β ...
Ya-fei LI   +8 more
doaj   +1 more source

Influx, efflux and net uptake of nitrate in Quercus suber seedlings

open access: yes, 2000
ACESSO via B-on: http://dx.doi.org/doi:10.1023/A:1004785331462Nitrate influx, efflux and net nitrate uptake were measured for the slow-growing Quercus suber L. (cork-oak) to estimate the N-uptake efficiency of its seedlings when grown with free access to
Lambers, H.   +9 more
core   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

open access: yesFEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Soil CO2 efflux at timberline on Mt. Fuji

open access: yes, 2004
P(論文)Soil CO2 effluxes were investigated at timberline on Mt. Fuji. Three study plots along a sequence of vegetation zones (dwarf, tall Japanese larch, and Veitch's silver fir proceeding downward) in the vicinity of timberline were selected for the ...
Masuzawa, Takehiro   +2 more
core   +1 more source

A novel quinazolinone insulin receptor inhibitor and its synergy with an EGFR inhibitor in glucose‐driven glioblastoma

open access: yesMolecular Oncology, EarlyView.
The novel styrylquinazolinone‐based molecule W1B effectively suppresses glioblastoma by inhibiting IGF1R and EGFR. In high‐glucose microenvironments driving tumor resistance, W1B acts synergistically with the EGFR inhibitor dacomitinib. This combination safely blocks compensatory survival signaling in zebrafish xenograft models. Showcasing promising in
Patryk Rurka   +9 more
wiley   +1 more source

Elucidation of the structure and molecular mechanism of the tripartite multidrug efflux pumps in the Gram-negative pathogens: Vibrio cholerae and Neisseria gonorrhoeae [PDF]

open access: yes, 2006
In bacteria, multidrug efflux systems have been identified as significant determinants of resistance recently. These resistance pumps are widely distributed in bacterial species and many pathogenic bacteria posses them, which play an important role in ...
Du, Dijun
core  

Weakening the nuclear envelope: Lamin B receptor in melanoma metastasis

open access: yesMolecular Oncology, EarlyView.
LBR‐driven nuclear fragility supports melanoma invasion. A: Melanocyte presents low LBR (Lamin B Receptor) levels, maintaining nuclear integrity and lamina‐chromatin tethering. B: During malignant progression, upregulation of LBR clusters at the INM (Inner Nuclear Membrane) during confined migration causes local lamina weakening and cholesterol ...
Francesca Lorenzini   +1 more
wiley   +1 more source

The Daunomycin: Biosynthesis, Actions, and the Search for New Solutions to Enhance Production

open access: yesMicroorganisms
Daunorubicin (DNR) is an anthracycline antibiotic originating from soil-dwelling actinobacteria extensively used to treat malignant tumors. Over the decades, extensive attempts were made to enhance the production of anthracyclines by introducing genetic ...
Baveesh Pudhuvai   +7 more
doaj   +1 more source

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