NMR paper Conformation and backbone dynamics of bacteriorhodopsin revealed by (13)C-NMR.

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[NMR paper] Conformation and backbone dynamics of bacteriorhodopsin revealed by (13)C-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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11-19-2010, 08:29 PM

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Conformation and backbone dynamics of bacteriorhodopsin revealed by (13)C-NMR.

Conformation and backbone dynamics of bacteriorhodopsin revealed by (13)C-NMR.

Related Articles Conformation and backbone dynamics of bacteriorhodopsin revealed by (13)C-NMR.

Biochim Biophys Acta. 2000 Aug 30;1460(1):39-48

Authors: Saitô H, Tuzi S, Yamaguchi S, Tanio M, Naito A

It is demonstrated here how the secondary structure and dynamics of transmembrane helices, as well as surface residues, such as interhelical loops and N- or C-terminus of bacteriorhodopsin (bR) in purple membrane, can be determined at ambient temperature based on very simple (13)C-NMR measurements, together with a brief experimental background. In contrast to the static picture of bR, currently available from X-ray diffraction or cryo-electron microscopy, the structure consists of dynamically heterogeneous domains which undergo various types of local fluctuations with a frequency range of 10(2)--10 (8) Hz. The significance of this picture is discussed in relation to the biological function of this protein.

PMID: 10984589 [PubMed - indexed for MEDLINE]

Source: PubMed

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