Results 31 to 40 of about 1,929,146 (335)

Structural basis of BAK activation in mitochondrial apoptosis initiation

Nature Communications, 2022
The authors show that the mechanism of BAK activation in mitochondrial apoptosis involves cooperation between direct activation by BH3-only protein BID and BAK autoactivation, providing a unifying basis for BAK triggering by BH3 ligands.
Geetika Singh, Cristina D. Guibao, Jayaraman Seetharaman, Anup Aggarwal, Christy R. Grace, Dan E. McNamara, Sivaraja Vaithiyalingam, M. Brett Waddell, Tudor Moldoveanu   +8 more
doaj   +1 more source

Nascent chains can form co-translational folding intermediates that promote post-translational folding outcomes in a disease-causing protein

Nature Communications, 2021
Alpha-1-antitrypsin (AAT) deficiency results from misfolding-prone AAT variants. Here the authors show that AAT forms co-translational folding intermediates on the ribosome that persist upon release and determine its folding fate.
Elena Plessa, Lien P. Chu, Sammy H. S. Chan, Oliver L. Thomas, Anaïs M. E. Cassaignau, Christopher A. Waudby, John Christodoulou, Lisa D. Cabrita   +7 more
doaj   +1 more source

Graph Theory and Networks in Biology [PDF]

, 2006
In this paper, we present a survey of the use of graph theoretical techniques in Biology. In particular, we discuss recent work on identifying and modelling the structure of bio-molecular networks, as well as the application of centrality measures to ...
Mason, Oliver, Verwoerd, Mark
core   +3 more sources

Neutron structural biology

Journal of Physics and Chemistry of Solids, 1999
Hydrogen atoms and water molecules around proteins and nucleic acids play a crucial role in many physiological functions. Neutron diffraction provides an experimental method of directly locating hydrogen atoms. (a) Since almost all the H atom positions can be identified experimentally, the geometrical details of certain types of H-bonds can be ...
openaire   +3 more sources

Elucidating the mechanisms of cooperative calcium-calmodulin interactions: a structural systems biology approach [PDF]

, 2008
BACKGROUND: Calmodulin is an important multifunctional molecule that regulates the activities of a large number of proteins in the cell. Calcium binding induces conformational transitions in calmodulin that make it specifically active to particular ...
Bates, Declan, Heslop-Harrison, Pat, Kotov, Nikolay, Postlethwaite, Ian, Valeyev, Najil   +4 more
core   +5 more sources

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

WeNMR : the tale of virtual research community in NMR and structural biology [PDF]

, 2013
Structural biology and life sciences in general, and NMR in particular, have always been associated with advanced computing. The current challenges in the post-genomic era call for virtual research platforms that provide the worldwide research community ...
Bonvin, Alexandre, Laue, Ernest, Rosato, Antonio, Schwalbe, Harald, Spronk, Chris, Svergun, Dmitri, Verlato, Marco, Vriend, Gert, Vuister, Geerten   +8 more
core  

Synthesis of partially O-acetylated N-acetylneuraminic acid using regioselective silyl exchange technology. [PDF]

, 2014
Postglycosylation acetylation of sialic acid imparts unique roles to sialoglycoconjugates in mammalian immune response making structural and functional understanding of these analogues important.
Gervay-Hague, Jacquelyn, Park, Simon S
core   +2 more sources

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

Molecular insight into RNA polymerase I promoter recognition and promoter melting

Nature Communications, 2019
RNA polymerase I (Pol I) catalyses the transcription of pre-ribosomal RNA and for transcription initiation Pol I assembles with core factor and Rrn3 on the rDNA core promoter.
Yashar Sadian, Florence Baudin, Lucas Tafur, Brice Murciano, Rene Wetzel, Felix Weis, Christoph W. Müller   +6 more
doaj   +1 more source