Results 41 to 50 of about 38,518 (252)

Comprehensive Circulatory Metabolomics in ME/CFS Reveals Disrupted Metabolism of Acyl Lipids and Steroids

Metabolites, 2020
The latest worldwide prevalence rate projects that over 65 million patients suffer from myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS), an illness with known effects on the functioning of the immune and nervous systems.
Arnaud Germain, Dinesh K. Barupal, Susan M. Levine, Maureen R. Hanson   +3 more
doaj   +1 more source

Crystal structure of the N-benzyloxycarbonyl-Alanyl-Phenylalanyl-methyl ester: the importance of the H-bonding pattern [PDF]

, 2011
Large crystals of the methyl ester of the N-a-benzyloxycarbonyl protected Ala-Phe dipeptide (Z-AF-OMe) were obtained after the very slow evaporation of a solution of the corresponding carboxylic acid (Z-AF-OH) in methanol containing an excess of HCl. The
Alfonso, Ignacio, Bolte, Michael, Burguete, M. Isabel, Luis, Santiago V.   +3 more
core   +2 more sources

Amino Acid-Derived Metabolites from the Ascidian Aplidium sp.

Marine Drugs, 2015
Four new iodobenzene-containing dipeptides (1–4), a related bromotryptophan-containing dipeptide (5), and an iodophenethylamine (6) were isolated from the ascidian Aplidium sp. collected off the coast of Chuja-do, Korea.
Tae Hyung Won, Chang-Kwon Kim, So-Hyoung Lee, Boon Jo Rho, Sang Kook Lee, Dong-Chan Oh, Ki-Bong Oh, Jongheon Shin   +7 more
doaj   +1 more source

Conformational changes in glycine tri- and hexapeptide

, 2005
We have investigated the potential energy surfaces for glycine chains consisting of three and six amino acids. For these molecules we have calculated potential energy surfaces as a function of the Ramachandran angles phi and psi, which are widely used ...
Greiner, Walter, Solov'yov, Andrey V., Solov'yov, Ilia A., Yakubovitch, Alexander V.   +3 more
core   +1 more source

Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges

Advanced Functional Materials, EarlyView.
Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley   +1 more source

The Role of Chemistry Across Disciplines From Humanities to Life Sciences in Understanding Complexity and Emergence

Angewandte Chemie, EarlyView.
This study explores the origins of life by linking prebiotic chemistry, the emergence of information‐carrying molecules such as RNA and proteins, and philosophical questions about consciousness. The study emphasizes the role of molecular evolution in the Central Dogma and provides insights into the chemical origins of biology and the basis of life's ...
Harald Schwalbe, Josef Wachtveitl, Alexander Heckel, Florian Buhr, Sabrina Toews, Thomas M. Schimmer   +5 more
wiley   +2 more sources

A comparative study of an aminopeptidase from lactic acid bacteria: a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Biochemistry at Massey University [PDF]

, 1992
Aminopeptidase enzymes from the proteolytic systems of S.salivarius subsp.thermophilus Lactococcus lactis subsp.cremoris and Lactococcus lactis subsp.lactis have been investigated.
Midwinter, Robyn Gillian
core  

Ab initio study of alanine polypeptide chains twisting

, 2005
We have investigated the potential energy surfaces for alanine chains consisting of three and six amino acids. For these molecules we have calculated potential energy surfaces as a function of the Ramachandran angles Phi and Psi, which are widely used ...
A. D. MacKerell, A. Finkelstein, A. Mülberg, A. Rubin, Alexander V. Yakubovich, Andrey V. Solov’yov, D. Voet, Ilia A. Solov’yov, J. B. Foresman, L. Lindgren, R. Schweitzer-Stenner, S. H. Vosko, S. Woutersen, Walter Greiner   +13 more
core   +1 more source

Amino acids induce peptide uptake via accelerated degradation of CUP9, the transcriptional repressor of the PTR2 peptide transporter [PDF]

, 2008
Multiple pathways link expression of PTR2, the transporter of di- and tripeptides in the yeast Saccharomyces cerevisiae, to the availability and quality of nitrogen sources.
Abdel-Sater, Abdel-Sater, Alagramam, Andréasson, Andréasson, Bachmair, Bernard, Boban, Boles, Byrd, Cai, Cai, Ditzel, Du, Fosberg, Frommer, Ghislain, Godard, Graciet, Holsbeeks, Homann, Hou, Hu, Hu, Hu, Inobe, Island, Johnson, Jorgensen, Klasson, Kwon, Kwon, Laney, Lee, Liu, Malavé, Mogk, Nielsen, Rao, Roosen, Sasaki, Schneider, Sikorski, Spielewoy, Suzuki, Tasaki, Tasaki, Tasaki, Turner, Turner, Varshavsky, Varshavsky, Varshavsky, Wiles, Wu, Xia, Xiao, Xie, Zenker   +58 more
core   +3 more sources

Redefining Therapies for Drug‐Resistant Tuberculosis: Synergistic Effects of Antimicrobial Peptides, Nanotechnology, and Computational Design

Advanced Healthcare Materials, EarlyView.
Antimicrobial peptide (AMP)‐loaded nanocarriers provide a multifunctional strategy to combat drug‐resistant Mycobacterium tuberculosis. By enhancing intracellular delivery, bypassing efflux pumps, and disrupting bacterial membranes, this platform restores phagolysosome fusion and macrophage function.
Christian S. Carnero Canales, Jessica Ingrid Marquez Cazorla, Renzo Marianito Marquez Cazorla, Aline Martins dos Santos, Jonatas Lobato Duarte, Letícia Oliveira Catarin Nunes, Túlio Custódio Reis, Lara Cerazi Salvador, Norival Alves Santos‐Filho, Rafael Miguel Sábio, Hélder A. Santos, Fernando Rogério Pavan   +11 more
wiley   +1 more source