NMR paper NMR analysis reveals a positively charged hydrophobic domain as a common motif to bou

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[NMR paper] NMR analysis reveals a positively charged hydrophobic domain as a common motif to bou

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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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08-22-2010, 03:33 AM

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NMR analysis reveals a positively charged hydrophobic domain as a common motif to bou

NMR analysis reveals a positively charged hydrophobic domain as a common motif to bound acetylcholine and d-tubocurarine.

Related Articles NMR analysis reveals a positively charged hydrophobic domain as a common motif to bound acetylcholine and d-tubocurarine.

Biochemistry. 1994 Jan 25;33(3):644-50

Authors: Fraenkel Y, Gershoni JM, Navon G

A complete 1H assignment of d-tubocurarine was carried out using 1D and 2D NMR techniques. Geometries of free acetylcholine (ACh) and d-tubocurarine were compared with those of the ligands bound to a recombinant cholinergic binding site (T alpha 184-200 expressed as a fusion protein in Escherichia coli). The conformations of the free ligands were determined by NOESY experiments while those of the bound molecules were obtained by transferred NOESY. The complete relaxation matrix was solved yielding distance constraints which were further refined by a sigma back-calculation. ACh bound to recombinant T alpha 184-200 closely resembled the conformation previously reported for ACh bound to the intact receptor. d-Tubocurarine in the bound state undergoes extensive induced conformational rearrangements generating a "cup"-shaped structure. A unique positively charged hydrophobic domain is identified as characteristic of both bound cholinergic ligands.

PMID: 8292592 [PubMed - indexed for MEDLINE]

Source: PubMed

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