Publication date: April 2014 Source:Journal of Magnetic Resonance, Volume 241
Author(s): Isabella C. Felli , Roberta Pierattelli
Intrinsically disordered proteins (IDPs) are characterized by highly flexible solvent exposed backbones and can sample many different conformations. These properties confer them functional advantages, complementary to those of folded proteins, which need to be characterized to expand our view of how protein structural and dynamic features affect function beyond the static picture of a single well defined 3D structure that has influenced so much our way of thinking. NMR spectroscopy provides a unique tool for the atomic resolution characterization of highly flexible macromolecules in general and of IDPs in particular. The peculiar properties of IDPs however have profound effects on spectroscopic parameters. It is thus worth thinking about these aspects to make the best use of the great potential of NMR spectroscopy to contribute to this fascinating field of research. In particular, after many years of dealing with exclusively heteronuclear NMR experiments based on 13C direct detection, we would like here to address their relevance when studying IDPs. Graphical abstract
Toward optimal-resolution NMR of intrinsically disordered proteins
Toward optimal-resolution NMR of intrinsically disordered proteins
Publication date: April 2014
Source:Journal of Magnetic Resonance, Volume 241</br>
Author(s): Ji?í Nová?ek , Lukáš Žídek , Vladimír Sklená?</br>
Proteins, which, in their native conditions, sample a multitude of distinct conformational states characterized by high spatiotemporal heterogeneity, most often termed as intrinsically disordered proteins (IDPs), have become a target of broad interest over the past 15years. With the growing evidence of their important roles in fundamental cellular...
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03-21-2014 12:52 AM
[NMR paper] Generating NMR Chemical Shift Assignments of Intrinsically Disordered Proteins Using Carbon-Detect NMR Methods.
Generating NMR Chemical Shift Assignments of Intrinsically Disordered Proteins Using Carbon-Detect NMR Methods.
Related Articles Generating NMR Chemical Shift Assignments of Intrinsically Disordered Proteins Using Carbon-Detect NMR Methods.
Anal Biochem. 2013 Dec 9;
Authors: Sahu D, Bastidas M, Showalter S
Abstract
There is an extraordinary need to describe the structures of intrinsically disordered proteins (IDPs) due to their role in various biological processes involved in signaling and transcription. However, general study of IDPs...
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Generating NMR Chemical Shift Assignments of Intrinsically Disordered Proteins Using Carbon-Detect NMR Methods
Generating NMR Chemical Shift Assignments of Intrinsically Disordered Proteins Using Carbon-Detect NMR Methods
Publication date: Available online 10 December 2013
Source:Analytical Biochemistry</br>
Author(s): Debashish Sahu , Monique Bastidas , Scott Showalter</br>
There is an extraordinary need to describe the structures of intrinsically disordered proteins (IDPs) due to their role in various biological processes involved in signaling and transcription. However, general study of IDPs by NMR spectroscopy is limited by the poor 1H-amide chemical shift dispersion...
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12-10-2013 04:48 AM
[NMR paper] NMR based solvent exchange experiments to understand the conformational preference of intrinsically disordered proteins using FG-nucleoporin peptide as a model.
NMR based solvent exchange experiments to understand the conformational preference of intrinsically disordered proteins using FG-nucleoporin peptide as a model.
http://www.bionmr.com//www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--media.wiley.com-assets-2250-98-WileyOnlineLibrary-Button_120x27px_FullText.gif Related Articles NMR based solvent exchange experiments to understand the conformational preference of intrinsically disordered proteins using FG-nucleoporin peptide as a model.
Biopolymers. 2013 Sep 4;
Authors: Heisel KA, Krishnan VV
...
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09-17-2013 11:36 PM
An assignment of intrinsically disordered regions of proteins based on NMR structures
An assignment of intrinsically disordered regions of proteins based on NMR structures
January 2013
Publication year: 2013
Source:Journal of Structural Biology, Volume 181, Issue 1</br>
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Intrinsically disordered proteins (IDPs) do not adopt stable three-dimensional structures in physiological conditions, yet these proteins play crucial roles in biological phenomena. In most cases, intrinsic disorder manifests itself in segments or domains of an IDP, called intrinsically disordered regions (IDRs), but fully disordered IDPs also exist. Although IDRs can be detected as...
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02-03-2013 10:13 AM
Intrinsically disordered proteins - PhysicsToday.org
Intrinsically disordered proteins - PhysicsToday.org
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Intrinsically disordered proteins
PhysicsToday.org
Indeed, much of the community's understanding of protein function rests on our ability to deduce those structures by such methods as x-ray crystallography and nuclear magnetic resonance (NMR). The immense success and explanatory power of the ...
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08-01-2012 09:35 PM
Paramagnetic relaxation enhancement to improve sensitivity of fast NMR methods: application to intrinsically disordered proteins
Paramagnetic relaxation enhancement to improve sensitivity of fast NMR methods: application to intrinsically disordered proteins
Abstract We report enhanced sensitivity NMR measurements of intrinsically disordered proteins in the presence of paramagnetic relaxation enhancement (PRE) agents such as Ni2+-chelated DO2A. In proton-detected 1H-15N SOFAST-HMQC and carbon-detected (H-flip)13CO-15N experiments, faster longitudinal relaxation enables the usage of even shorter interscan delays. This results in higher NMR signal intensities per units of experimental time, without adverse line...
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10-21-2011 10:04 PM
Extension of the HA-detection based approach: (HCA)CON(CA)H and (HCA)NCO(CA)H experiments for the main-chain assignment of intrinsically disordered proteins
Extension of the HA-detection based approach: (HCA)CON(CA)H and (HCA)NCO(CA)H experiments for the main-chain assignment of intrinsically disordered proteins
Abstract Extensive resonance overlap exacerbates assignment of intrinsically disordered proteins (IDPs). This issue can be circumvented by utilizing 15N, 13C� and 1HN spins, where the chemical shift dispersion is mainly dictated by the characteristics of consecutive amino acid residues. Especially 15N and 13C� spins offer superior chemical shift dispersion in comparison to 13Cα and 13Cβ spins. However, HN-detected experiments...