NMR paper NMR solution structure determination of membrane proteins reconstituted in detergent

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[NMR paper] NMR solution structure determination of membrane proteins reconstituted in detergent

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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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11-24-2010, 09:16 PM

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NMR solution structure determination of membrane proteins reconstituted in detergent

NMR solution structure determination of membrane proteins reconstituted in detergent micelles.

Related Articles NMR solution structure determination of membrane proteins reconstituted in detergent micelles.

FEBS Lett. 2003 Nov 27;555(1):144-50

Authors: Fernández C, Wüthrich K

As an alternative to X-ray crystallography, nuclear magnetic resonance (NMR) spectroscopy in solution can be used for three-dimensional structure determination of small membrane proteins, preferably proteins with beta-barrel fold. This paper reviews recent achievements as well as limiting factors encountered in solution NMR studies of membrane proteins. Our particular interest has been focused on supplementing structure determination with data on the solvation of the proteins in the mixed micelles with detergents that are used to reconstitute membrane proteins for the NMR experiments. For the Escherichia coli outer membrane protein X (OmpX) in dihexanoylphosphatidylcholine (DHPC) micelles, such studies showed that the central part of the protein is covered with a fluid monolayer of lipid molecules, which seems to mimic quite faithfully the embedding of the protein in the lipid phase of the biological membrane. The implication is that the micellar systems used in this instance for the NMR studies of the membrane protein should also be suitable for further investigations of functional interactions with other proteins or low-molecular weight ligands.

PMID: 14630335 [PubMed - indexed for MEDLINE]

Source: PubMed

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