NMR paper Harnessing NMR relaxation interference effects to characterise supramolecular assemblies.

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[NMR paper] Harnessing NMR relaxation interference effects to characterise supramolecular assemblies.

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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

Chemical shifts re-referencing:

NMR model quality:

NOEs, other restraints:

Chemical shifts:

RDCs:

Pseudocontact shifts:

Protein geomtery:

SAVES2 or SAVES4

Quality Control Check

NMR spectrum prediction:

FANDAS

MestReS

V-NMR

Flexibility from structure:

Backbone S2

Methyl S2

B-factor

Molecular dynamics:

Gromacs

Amber

Antechamber

Chemical shifts prediction:

From structure:

Shiftx2

Sparta+

Camshift

CH3shift- Methyl

ArShift- Aromatic

ShiftS

Proshift

PPM

CheShift-2- Cα

From sequence:

Shifty

Camcoil

Poulsen_rc_CS

Disordered proteins:

MAXOCC

Format conversion & validation:

CCPN

From NMR-STAR 3.1

Validate NMR-STAR 3.1

NMR sample preparation:

Protein disorder:

DisMeta

Protein solubility:

Isotope labeling:

Solid-state NMR:

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04-29-2016, 06:31 PM

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Harnessing NMR relaxation interference effects to characterise supramolecular assemblies.

Harnessing NMR relaxation interference effects to characterise supramolecular assemblies.

Related Articles Harnessing NMR relaxation interference effects to characterise supramolecular assemblies.

Chem Commun (Camb). 2016 Apr 28;

Authors: Karunanithy G, Cnossen A, Müller H, Peeks MD, Rees NH, Claridge TD, Anderson HL, Baldwin AJ

Abstract
Solution-state NMR spectroscopy remains the primary method for characterising synthetic supramolecular assemblies. Yet, in their NMR spectra, relaxation interference effects can significantly alter peak intensities hindering interpretation. Here, we present a simple experiment for synthetic chemists to analyse this effect, allowing interpretation of these distorted spectra and validation of spectral assignments. We apply this experiment to synthetic porphyrin oligomers with molecular weights approaching those of protein domains (10 kDa). Our experiment provides a simple means to gain additional structural and dynamical information that will become increasingly useful as chemists create larger molecular architectures.

PMID: 27122082 [PubMed - as supplied by publisher]

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