NMR paper Triple resonance [Formula: see text] NMR relaxation experiments for studies of intrinsically disordered proteins.

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[NMR paper] Triple resonance [Formula: see text] NMR relaxation experiments for studies of intrinsically disordered proteins.

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NMR processing:

MDD

NMR assignment:

Backbone:

Side-chains:

NOEs:

Structure from NMR restraints:

Ab initio:

Fragment-based:

Rosetta-NMR (Robetta)

Template-based:

GeNMR

I-TASSER

Refinement:

Amber

Structure from chemical shifts:

Fragment-based:

Homology-based:

Torsion angles from chemical shifts:

Preditor

TALOS

Promega- Proline

Secondary structure from chemical shifts:

CSI (via RCI server)

TALOS

MICS caps, β-turns

d2D

PECAN

Flexibility from chemical shifts:

RCI

Interactions from chemical shifts:

HADDOCK

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NOEs, other restraints:

Chemical shifts:

RDCs:

Pseudocontact shifts:

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SAVES2 or SAVES4

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NMR spectrum prediction:

FANDAS

MestReS

V-NMR

Flexibility from structure:

Backbone S2

Methyl S2

B-factor

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Gromacs

Amber

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Shiftx2

Sparta+

Camshift

CH3shift- Methyl

ArShift- Aromatic

ShiftS

Proshift

PPM

CheShift-2- Cα

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Shifty

Camcoil

Poulsen_rc_CS

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MAXOCC

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DisMeta

Protein solubility:

Isotope labeling:

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10-28-2017, 08:03 AM

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Triple resonance [Formula: see text] NMR relaxation experiments for studies of intrinsically disordered proteins.

Triple resonance [Formula: see text] NMR relaxation experiments for studies of intrinsically disordered proteins.

Related Articles Triple resonance [Formula: see text] NMR relaxation experiments for studies of intrinsically disordered proteins.

J Biomol NMR. 2017 Oct 25;:

Authors: Srb P, Nová?ek J, Kade?ávek P, Rabatinová A, Krásný L, Žídková J, Bobálová J, Sklená? V, Žídek L

Abstract
Description of protein dynamics is known to be essential in understanding their function. Studies based on a well established [Formula: see text] NMR relaxation methodology have been applied to a large number of systems. However, the low dispersion of [Formula: see text] 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 [Formula: see text] relaxation parameters ([Formula: see text], [Formula: see text], NOE, cross-correlated relaxation rates [Formula: see text] and [Formula: see text]) in doubly [Formula: see text],[Formula: see text]-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 [Formula: see text]-subunit of RNA polymerase from Bacillus subtilis. Comparison with data obtained using a sample labeled by [Formula: see text] only showed that the presence of [Formula: see text] has a negligible effect on [Formula: see text], [Formula: see text], and on the cross-relaxation rate (calculated from NOE and [Formula: see text]), and that these relaxation rates can be used to calculate accurate spectral density values. Partially [Formula: see text]-labeled sample was used to test if the observed increase of [Formula: see text] [Formula: see text] in the presence of [Formula: see text] corresponds to the [Formula: see text] dipole-dipole interactions in the [Formula: see text],[Formula: see text]-labeled sample.

PMID: 29071460 [PubMed - as supplied by publisher]

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