Results 81 to 90 of about 3,469,335 (259)

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

FEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

Verapamil metabolism in distinct regions of the heart and in cultures of cardiomyocytes of adult rats

, 2022
S.761-768A substantial number of drugs act either directly or indirectly on the heart, but surprisingly, little is known about drug oxidation in the heart.
Levsen, K., Walles, M., Borlak, J., Thum, T.   +3 more
core   +1 more source

Machine learning to predict food effects during drug development: a comprehensive review

Journal of Cheminformatics
Drug absorption can be altered due to the consumption of food, impacting the efficacy and safety of the drug administered, and predicting food effects (FE) can be quite complex.
Alam Shah, Fulin Bi, Jin Yang
doaj   +1 more source

The down-regulation of SLC7A11 enhances ROS induced P-gp over-expression and drug resistance in MCF-7 breast cancer cells

Scientific Reports, 2017
Adriamycin (ADR) induces the over-expression of P-glycoprotein (P-gp) and multiple drug resistance in breast cancer cells. However, the biochemical process and underlying mechanisms are not clear.
Chun Ge, Bei Cao, Dong Feng, Fang Zhou, Jingwei Zhang, Na Yang, Siqi Feng, Guangji Wang, Jiye Aa   +8 more
doaj   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

FEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil, Jeffrey A. Hawkes, Cecilia Blikstad, Pia Lindberg   +3 more
wiley   +1 more source

Clinical pharmacogenetics and potential application in personalized medicine

, 2008
10.2174/138920008786049302Current Drug Metabolism98738 ...
Xue, Charlie Changli, Wang, Jian-Cheng, Wang, Jiancheng, Tian, Min, Lai, X., Chan, Eli, Xue, C.C., Tian, M., Li, Chun Guang, Du, Y.-M., Du, Yao-Min, Li, C.G., Chow, Vivian Deh-Wei, Di, Yuanming, Di, Yuan Ming, Li, Chun Guang (R17249), Xue, Charlie C. L., Duan, Wei, Di, Y.M., Chan, E., Zhou, S.-F., Zhou, Shu-Feng, Lai, Xinsheng, Chow, V.D.-W., Duan, W., Wang, J.-C., Du, Yaomin   +26 more
core   +1 more source

RNA‐related functions of BRCA2 in transcription, replication, and genome stability

FEBS Letters, EarlyView.
Beyond its role in homologous recombination, BRCA2 regulates R‐loop homeostasis, DNA–RNA hybrid resolution, RNA polymerase II dynamics, and transcriptional activation. Disruption of any of these functions can contribute to genome instability, inflammatory signaling, and tumorigenesis. BRCA2 is a central tumor suppressor protein best known for its roles
Lucia Alvaro‐Aranda, Sreerama Chaitanya Sridhara, Aura Carreira   +2 more
wiley   +1 more source

Integrated Pharmacokinetics, Pharmacodynamics, and Pharmacometabolomics to Elucidate Guizhi Fuling Capsule’s Homeostatic Mechanism Against Acute Dysmenorrhea

Pharmaceuticals
Background/Objectives: Guizhi Fuling Capsule (GZFL), a Traditional Chinese Medicine (TCM) formula, is widely used for primary dysmenorrhea and other blood-stasis gynecological disorders.
Xin-Ru Lyu, Min Lin, Zi-Han Xu, Si-Tao Xu, Xiang Li, Zhi-Hui Lu, Tong-Tong Wei, Shi-Yu Zhang, Guang-Ji Wang, Ying Peng, Jian-Guo Sun   +10 more
doaj   +1 more source