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Protein Target Search Diffusion-association/dissociation Free Energy Landscape around DNA Binding Site with Flanking Sequences.
Biophys J
January 2025
Department of Physics and Astronomy, Department of Chemistry, NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, California, USA. Electronic address:
In this work we present a minimal structure-based model of protein diffusional search along local DNA amid protein binding and unbinding events on the DNA, taking into account protein-DNA electrostatic interactions and hydrogen-bonding (HB) interactions or contacts at the interface. We accordingly constructed the protein diffusion-association/dissociation free energy surface and mapped it to 1D as the protein slides along DNA, maintaining the protein-DNA interfacial HB contacts that presumably dictate the DNA sequence information detection. Upon DNA helical path correction, the protein 1D diffusion rates along local DNA can be physically derived to be consistent with experimental measurements.
View Article and Find Full Text PDFExploring Novel Antibiotics by Targeting the GroEL/GroES Chaperonin System.
ACS Pharmacol Transl Sci
January 2025
State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China.
Infectious diseases have affected 13.7 million patients, placing a heavy burden on society. Furthermore, inappropriate and unrequited utilization of antibiotics has led to antimicrobial resistance worldwide.
View Article and Find Full Text PDFChanges in Muscle Quality Following Short-Term Resistance Training in Older Adults: A Comparison of Echo Intensity and Texture Analysis.
Ultrasound Med Biol
January 2025
Institute of Exercise Physiology and Rehabilitation Science, University of Central Florida, Orlando, FL, USA. Electronic address:
Background: Skeletal muscle echo intensity (EI) is associated with functional outcomes in older adults, but resistance training interventions have shown mixed results. Texture analysis has been proposed as a novel approach for assessing muscle quality, as it captures spatial relationships between pixels. It is unclear whether texture analysis is able to track changes following resistance training.
View Article and Find Full Text PDFHigh-Resolution OCT Reveals Age-Associated Variation in the Region Posterior to the External Limiting Membrane.
Transl Vis Sci Technol
January 2025
New England Eye Center, Tufts Medical Center, Boston, MA, USA.
Purpose: To evaluate visibility of a sub-band posterior to the external limiting membrane (ELM) and assess its age-associated variation.
Methods: In a retrospective cross-sectional study, normal eyes were imaged using a high-resolution spectral-domain optical coherence tomography (SD-OCT) prototype (2.7-µm axial resolution).
Talent Identification: Time to Move Forward on Estimation of Potentials? Proposed Explanations and Promising Methods.
Sports Med
January 2025
IRMES-UPR 7329, Institut de Recherche Médicale et d'Épidémiologie du Sport, Université Paris Cité, 11 Avenue du Tremblay, 75012, Paris, France.
The scientific literature on talent identification is extensive, with significant advancements made over the past 30 years. However, as with any field, the translation of research into practice and its impact on the field have been slower than anticipated. Indeed, recent findings highlight a pervasive relative age effect, the effects of maturation being often overlooked, disparate populations between young and senior performers, and a necessity to embrace a holistic approach.
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