Results 41 to 50 of about 2,310,044 (293)

Study of protein structure by electron microscopy and single particle image processing [PDF]

, 2015
The molecular assemblies form an important role in the understanding the machinery of living cells. These assemblies with thickness less than 1000nm and exhibiting different shapes, size and biochemical states are studied using Transmission Electron ...
Dandey, Venkata Prasad
core   +1 more source

Imaging and 3D reconstruction of membrane protein complexes by cryo-electron microscopy and single particle analysis [PDF]

, 2006
Cryo-electron microscopy (cryo-EM) in combination with single particle image processing and volume reconstruction is a powerful technology to obtain medium-resolution structures of large protein complexes, which are extremely difficult to crystallize and ...
Gregorini, Marco
core   +1 more source

Biophysical approaches for studying viral entry

FEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source

Structural basis for CRISPR RNA-guided DNA recognition by Cascade [PDF]

, 2011
The CRISPR (clustered regularly interspaced short palindromic repeats) immune system in prokaryotes uses small guide RNAs to neutralize invading viruses and plasmids.
Beijer, Marieke R., Mark J Dickman, Dickman, Mark J.,, Snijders, AP, Matthijs M Jore, Rolf Wagner, Sakharam P Waghmare, Beijer, Marieke, Wagner, Rolf, Brouns, Stan J. J., Barendregt, Arjan,, Snijders, Ambrosius, Dickman, Mark, Oost, J., van der, Arjan Barendregt, Boekema, Egbert, Dickman, Mark J., Bultema, J.B., Boekema, EJ, Waghmare, Sakharam P.,, Brouns, S.J.J., Wurm, Reinhild,, Westra, ER, Pul, U, Boekema, Egbert J., Doudna, Jennifer, Pul, Ümit,, Beijer, Marieke R.,, Egbert J Boekema, Jelle B Bultema, Westra, Edze, Snijders, Ambrosius P.L.,, Lundgren, Magnus, Jennifer A Doudna, Bultema, Jelle B.,, Wagner, R, John van der Oost, Westra, Edze R.,, van der Oost, J, Beijer, M.R., Wurm, R, Beijer, MR, Edze R Westra, Doudna, Jennifer A.,, Kaihong Zhou, Duijn, E., van, Jore, M.M., Heck, AJ, van der Oost, J., Waghmare, Sakharam, Jore, MM, Westra, E.R., Brouns, SJ, Doudna, Jennifer A., Wurm, Reinhild, Wagner, Rolf,, Ambrosius P L Snijders, Zhou, K, Barendregt, Arjan, Albert J R Heck, Brouns, Stan J.J.,, Magnus Lundgren, Pul, Uemit, Boekema, Egbert J.,, van Duijn, Esther, Snijders, Ambrosius P. L., Heck, Albert J. R., Lundgren, M, Pul, Ümit, Zhou, Kaihong,, Oost, John van der,, Blake Wiedenheft, Wiedenheft, Blake,, Wiedenheft, Blake, Waghmare, SP, van der Oost, John, Reinhild Wurm, Stan J J Brouns, Brouns, Stan, Jore, Matthijs M.,, Waghmare, Sakharam P., Bultema, Jelle, Zhou, Kaihong, Dickman, MJ, Lundgren, Magnus,, Barendregt, A, Bultema, JB, Jore, Matthijs, Duijn, Esther van,, Jore, Matthijs M., Lundgren, N.M.J., Ümit Pul, Marieke R Beijer, Wiedenheft, B, van Duijn, E., Heck, Albert J.R.,, Heck, Albert, Bultema, Jelle B., van Duijn, E, Westra, Edze R., Esther van Duijn, Doudna, JA   +101 more
core   +3 more sources

Structure‐forward targeting of claudins with synthetic binders

FEBS Letters, EarlyView.
Claudins form the paracellular barriers between epithelial and endothelial tissues at tight junctions and are targets for molecular binders with the goal of modulating barrier permeability. Claudin‐binding molecules are relevant in drug delivery or in altering claudin interactions with disease‐causing proteins.
Alex J. Vecchio
wiley   +1 more source

Structural Insights into Cell Wall-Related Vesicle Secretion with Different Mechanisms

Plants
Exocytosis is a fundamental biological process in all eukaryotes involving the vesicular transport of cellular cargo to the plasma membrane or extracellular space.
Jiawen Yang, Sheng Chang, Linlin Li, Xiaoyu Ma, Hua Han, Zheng Liu, Jian Zhu   +6 more
doaj   +1 more source

Pharmacological hallmarks of allostery at the M4 muscarinic receptor elucidated through structure and dynamics

eLife, 2023
Allosteric modulation of G protein-coupled receptors (GPCRs) is a major paradigm in drug discovery. Despite decades of research, a molecular-level understanding of the general principles that govern the myriad pharmacological effects exerted by GPCR ...
Ziva Vuckovic, Jinan Wang, Vi Pham, Jesse I Mobbs, Matthew J Belousoff, Apurba Bhattarai, Wessel AC Burger, Geoff Thompson, Mahmuda Yeasmin, Vindhya Nawaratne, Katie Leach, Emma T van der Westhuizen, Elham Khajehali, Yi-Lynn Liang, Alisa Glukhova, Denise Wootten, Craig W Lindsley, Andrew Tobin, Patrick Sexton, Radostin Danev, Celine Valant, Yinglong Miao, Arthur Christopoulos, David M Thal   +23 more
doaj   +1 more source

Orthogonal matrix retrieval in cryo-electron microscopy [PDF]

2015 IEEE 12th International Symposium on Biomedical Imaging (ISBI), 2015
In single particle reconstruction (SPR) from cryo-electron microscopy (cryo-EM), the 3D structure of a molecule needs to be determined from its 2D projection images taken at unknown viewing directions. Zvi Kam showed already in 1980 that the autocorrelation function of the 3D molecule over the rotation group SO(3) can be estimated from 2D projection ...
Tejal Bhamre, Teng Zhang 0002, Amit Singer   +2 more
openaire   +5 more sources

RIBFIND: a web server for identifying rigid bodies in protein structures and to aid flexible fitting into cryo EM maps [PDF]

, 2012
Motivation: To better analyze low-resolution cryo electron microscopy maps of macromolecular assemblies, component atomic structures frequently have to be flexibly fitted into them.
Topf, Maya, A. P. Pandurangan, Pandurangan, Arun, M. Topf   +3 more
core   +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