Fenwick, R. B., van den Bedem, H., Fraser, J. S., Wright, P. E....
Date: 2014-01-28
Detailed descriptions of atomic coordinates and motions are required for an understanding of protein dynamics and their relation to molecular recognition, catalytic function, and allostery. Historically, NMR relaxation measurements have played a dominant role in the determination of the amplitudes and timescales (picosecond–nanosecond) of bond vector fluctuations, whereas high-resolution X-ray... Read More
PNAS:
Number: 4
Volume: 111
Did you find this post helpful? |
Similar Threads
Thread
Thread Starter
Forum
Replies
Last Post
Allosteric effects in c-Abl by solution NMR [Biophysics and Computational Biology]
Allosteric effects in c-Abl by solution NMR
Skora, L., Mestan, J., Fabbro, D., Jahnke, W., Grzesiek, S....
Date: 2013-11-19
Successful treatment of chronic myelogenous leukemia is based on inhibitors binding to the ATP site of the deregulated breakpoint cluster region (Bcr)–Abelson tyrosine kinase (Abl) fusion protein. Recently, a new type of allosteric inhibitors targeting the Abl myristoyl pocket was shown in preclinical studies to overcome ATP-site inhibitor resistance arising... Read More
PNAS:
Number: 47
nmrlearner
Journal club
0
11-20-2013 12:42 AM
Cu-SOD structure and dynamics by solid-state NMR [Biophysics and Computational Biology]
Cu-SOD structure and dynamics by solid-state NMR
Knight, M. J., Pell, A. J., Bertini, I., Felli, I. C., Gonnelli, L., Pierattelli, R., Herrmann, T., Emsley, L., Pintacuda, G....
Date: 2012-07-10
We introduce a new approach to improve structural and dynamical determination of large metalloproteins using solid-state nuclear magnetic resonance (NMR) with 1H detection under ultrafast magic angle spinning (MAS). The approach is based on the rapid and sensitive acquisition of an extensive set of 15N and 13C nuclear relaxation rates. The system on which we demonstrate these methods is the...
nmrlearner
Journal club
0
07-10-2012 06:01 PM
Protein structure modeling using sparse NMR data [Biophysics and Computational Biology]
Protein structure modeling using sparse NMR data
Thompson, J. M., Sgourakis, N. G., Liu, G., Rossi, P., Tang, Y., Mills, J. L., Szyperski, T., Montelione, G. T., Baker, D....
Date: 2012-06-19
While information from homologous structures plays a central role in X-ray structure determination by molecular replacement, such information is rarely used in NMR structure determination because it can be incorrect, both locally and globally, when evolutionary relationships are inferred incorrectly or there has been considerable evolutionary structural divergence. Here we describe a method that...
nmrlearner
Journal club
0
06-20-2012 02:28 AM
Ultrahigh resolution protein structures using NMR chemical shift tensors [Biophysics and Computational Biology]
Ultrahigh resolution protein structures using NMR chemical shift tensors
Wylie, B. J., Sperling, L. J., Nieuwkoop, A. J., Franks, W. T., Oldfield, E., Rienstra, C. M....
Date: 2011-10-11
NMR chemical shift tensors (CSTs) in proteins, as well as their orientations, represent an important new restraint class for protein structure refinement and determination. Here, we present the first determination of both CST magnitudes and orientations for 13C? and 15N (peptide backbone) groups in a protein, the ?1 IgG binding domain of protein G from Streptococcus spp., GB1. Site-specific 13C? and...
nmrlearner
Journal club
0
10-12-2011 06:37 AM
Architecture of the high mobility group nucleosomal protein 2-nucleosome complex as revealed by methyl-based NMR [Biophysics and Computational Biology]
Architecture of the high mobility group nucleosomal protein 2-nucleosome complex as revealed by methyl-based NMR
Kato, H., van Ingen, H., Zhou, B.-R., Feng, H., Bustin, M., Kay, L. E., Bai, Y....
Date: 2011-07-26
Chromatin structure and function are regulated by numerous proteins through specific binding to nucleosomes. The structural basis of many of these interactions is unknown, as in the case of the high mobility group nucleosomal (HMGN) protein family that regulates various chromatin functions, including transcription. Here, we report the architecture of the HMGN2-nucleosome...
nmrlearner
Journal club
0
07-26-2011 11:22 PM
Measurement of protein unfolding/refolding kinetics and structural characterization of hidden intermediates by NMR relaxation dispersion [Biophysics and Computational Biology]
Measurement of protein unfolding/refolding kinetics and structural characterization of hidden intermediates by NMR relaxation dispersion
Meinhold, D. W., Wright, P. E....
Date: 2011-05-31
Detailed understanding of protein function and malfunction hinges on the ability to characterize transiently populated states and the transitions between them. Here, we use 15N, , and 13CO NMR R2 relaxation dispersion to investigate spontaneous unfolding and refolding events of native apomyoglobin. Above pH 5.0, dispersion is dominated by processes involving fluctuations of the F-helix region, which...
nmrlearner
Journal club
0
05-31-2011 11:41 PM
Solid-state 2H NMR relaxation illuminates functional dynamics of retinal cofactor in membrane activation of rhodopsin [Biophysics and Computational Biology]
Solid-state 2H NMR relaxation illuminates functional dynamics of retinal cofactor in membrane activation of rhodopsin
Struts, A. V., Salgado, G. F. J., Brown, M. F....
Date: 2011-05-17
Rhodopsin is a canonical member of the family of G protein-coupled receptors, which transmit signals across cellular membranes and are linked to many drug interventions in humans. Here we show that solid-state 2H NMR relaxation allows investigation of light-induced changes in local ps–ns time scale motions of retinal bound to rhodopsin. Site-specific 2H labels were introduced into methyl groups of the...
nmrlearner
Journal club
0
05-17-2011 08:40 PM
Dynamically committed, uncommitted, and quenched states encoded in protein kinase A revealed by NMR spectroscopy [Biophysics and Computational Biology]
Dynamically committed, uncommitted, and quenched states encoded in protein kinase A revealed by NMR spectroscopy
Masterson, L. R., Shi, L., Metcalfe, E., Gao, J., Taylor, S. S., Veglia, G....
Date: 2011-04-26
Protein kinase A (PKA) is a ubiquitous phosphoryl transferase that mediates hundreds of cell signaling events. During turnover, its catalytic subunit (PKA-C) interconverts between three major conformational states (open, intermediate, and closed) that are dynamically and allosterically activated by nucleotide binding. We show that the structural transitions between these...