Results 51 to 60 of about 6,634,608 (387)

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

MAD1: Kinetochore Receptors and Catalytic Mechanisms

Frontiers in Cell and Developmental Biology, 2018
The mitotic checkpoint monitors kinetochore-microtubule attachment, delays anaphase onset and prevents aneuploidy when unattached or tensionless kinetochores are present in cells.
Yibo Luo, Ejaz Ahmad, Song-Tao Liu
doaj   +1 more source

Conformational Dependence of a Protein Kinase Phosphate Transfer Reaction

, 2004
Atomic motions and energetics for a phosphate transfer reaction catalyzed by the cAMP-dependent protein kinase (PKA) are calculated by plane-wave density functional theory, starting from structures of proteins crystallized in both the reactant ...
Austin, B. H. McMahon, C.-S. Tung, Cheng, Clementi, Frauenfelder, Frauenfelder, G. Henkelman, Hanggi, Johnson, Johnson, M. X. LaBute, Madhusudan, McMahon, N  meth, P. W. Fenimore, Pearson, Pinna, Smith, Songyang, Valiev, Yang, Zheng   +22 more
core   +2 more sources

Overproduction of PDR3 Suppresses Mitochondrial Import Defects Associated with a TOM70 Null Mutation by Increasing the Expression of TOM72 in Saccharomyces cerevisiae [PDF]

, 2001
Most mitochondrial proteins are synthesized with cleavable amino-terminal targeting signals that interact with the mitochondrial import machinery to facilitate their import from the cytosol.
Bedwell, David M., Hájek, Petr, Koh, Julie Y.   +2 more
core   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Computational Protein Design Using AND/OR Branch-and-Bound Search

, 2015
The computation of the global minimum energy conformation (GMEC) is an important and challenging topic in structure-based computational protein design.
Wu, Yuexin, Zeng, Jianyang, Zhou, Yichao
core   +1 more source

Molecular modeling of an antigenic complex between a viral peptide and a class I major histocompatibility glycoprotein [PDF]

, 1992
Computer simulation of the conformations of short antigenic peptides (&lo residues) either free or bound to their receptor, the major histocompatibility complex (MHC)- encoded glycoprotein H-2 Ld, was employed to explain experimentally determined ...
Allen, Babbit, Bjorkman, Buus, Chen, Cramer, Del Val, DeLisi, Falk, Fauchère, Garrett, Jorgensen, Kidera, Kourilsky, Krug, Lambert, Lambert, Lambert, Margalit, Maryanski, Owen, Reddehase, Reddehase, Reddehase, Rötzschke, Saper, Schwartz, Serrano, Sette, Tirado-Rives, Townsend, Townsend, Townsend, Unanue, Van Bleek, Weiner, Wendoloski, Wold, Zinkernagel   +38 more
core   +1 more source

Tracing conformational changes in proteins [PDF]

2009 IEEE International Conference on Bioinformatics and Biomedicine Workshop, 2009
Many proteins undergo extensive conformational changes as part of their functionality. Tracing these changes is important for understanding the way these proteins function. Traditional biophysics-based conformational search methods require a large number of calculations and are hard to apply to large-scale conformational motions.In this work we ...
Haspel, Nurit, Moll, Mark, Baker, Matthew L, Chiu, Wah, Kavraki, Lydia E   +4 more
openaire   +3 more sources

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

A dual fluorescent-Raman bioorthogonal probe for specific biosynthetic labeling of intracellular gangliosides

Communications Chemistry
Gangliosides are sialic acid-containing glycosphingolipids integral to the cell membrane, and they are particularly abundant in the nervous system.
Mana Mohan Mukherjee, Matthew D. Watson, Devin Biesbrock, Lara K. Abramowitz, Steven K. Drake, Jennifer C. Lee, John A. Hanover   +6 more
doaj   +1 more source