2017
Triple resonance NMR relaxation experiments for studies of intrinsically disordered proteins
SRB, Pavel; Jiří NOVÁČEK; Pavel KADEŘÁVEK; A. RABATINOVA; L. KRÁSNÝ et. al.Basic information
Original name
Triple resonance NMR relaxation experiments for studies of intrinsically disordered proteins
Authors
SRB, Pavel (203 Czech Republic, belonging to the institution); Jiří NOVÁČEK (203 Czech Republic, belonging to the institution); Pavel KADEŘÁVEK (203 Czech Republic, belonging to the institution); A. RABATINOVA (203 Czech Republic); L. KRÁSNÝ (203 Czech Republic); J. ŽÍDKOVÁ (203 Czech Republic); J. BOBÁĽOVÁ (203 Czech Republic); Vladimír SKLENÁŘ (203 Czech Republic, belonging to the institution) and Lukáš ŽÍDEK (203 Czech Republic, guarantor, belonging to the institution)
Edition
Journal of Biomolecular NMR, Dordrecht, Springer, 2017, 0925-2738
Other information
Language
English
Type of outcome
Article in a journal
Field of Study
10608 Biochemistry and molecular biology
Country of publisher
Netherlands
Confidentiality degree
is not subject to a state or trade secret
References:
Impact factor
Impact factor: 2.534
RIV identification code
RIV/00216224:14740/17:00095497
Organization unit
Central European Institute of Technology
UT WoS
000416856600003
EID Scopus
2-s2.0-85032189568
Keywords in English
Nuclear magnetic resonance; Relaxation; Non-uniform sampling; Intrinsically disordered proteins
Tags
International impact, Reviewed
Changed: 14/3/2018 14:35, Mgr. Pavla Foltynová, Ph.D.
Abstract
V originále
Description of protein dynamics is known to be essential in understanding their function. Studies based on a well established NMR relaxation methodology have been applied to a large number of systems. However, the low dispersion of chemical shifts very often observed within intrinsically disordered proteins complicates utilization of standard 2D HN correlated spectra because a limited number of amino acids can be characterized. Here we present a suite of triple resonance HNCO-type NMR experiments for measurements of five relaxation parameters (, , NOE, cross-correlated relaxation rates and ) in doubly ,-labeled proteins. We show that the third spectral dimension combined with non-uniform sampling provides relaxation rates for almost all residues of a protein with extremely poor chemical shift dispersion, the C terminal domain of -subunit of RNA polymerase from Bacillus subtilis. Comparison with data obtained using a sample labeled by only showed that the presence of has a negligible effect on , , and on the cross-relaxation rate (calculated from NOE and ), and that these relaxation rates can be used to calculate accurate spectral density values. Partially -labeled sample was used to test if the observed increase of in the presence of corresponds to the dipole-dipole interactions in the ,-labeled sample.
Links
EE2.3.30.0009, research and development project |
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GA13-16842S, research and development project |
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LM2015043, research and development project |
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LQ1601, research and development project |
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