NMR paper Inter-domain interactions of TDP-43 as decoded by NMR.

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[NMR paper] Inter-domain interactions of TDP-43 as decoded by NMR.

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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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08-31-2016, 02:34 PM

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Inter-domain interactions of TDP-43 as decoded by NMR.

Related Articles Inter-domain interactions of TDP-43 as decoded by NMR.

Biochem Biophys Res Commun. 2016 Apr 29;473(2):614-9

Authors: Wei Y, Lim L, Wang L, Song J

Abstract
TDP-43 inclusions have been found in ~97% ALS as well as an increasing spectrum of other neurodegenerative diseases including Alzheimer's. TDP-43 contains an ubiquitin-like fold, two RRMs and a prion-like domain, but whether they interact with each other remains unknown due to being intrinsically aggregation-prone. Nevertheless, this knowledge is pivotal to understanding physiological functions and pathological roles of TDP-43. Here as facilitated by our previous discovery which allowed NMR characterization of TDP-43 and its five dissected fragments, we successfully decoded that TDP-43 does have dynamic inter-domain interactions, which are coordinated by the intrinsically-disordered prion-like domain. Thus, TDP-43 appears to undergo conformational exchanges between "closed" and "open" states which are needed for its functions. Our study thus offers a mechanism by which cellular processes might control TDP-43 physiology and proteinopathy by mediating its inter-domain interactions.

PMID: 27040765 [PubMed - indexed for MEDLINE]

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