NMR paper NMR structure of the principal neutralizing determinant of HIV-1 displayed in filamen

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[NMR paper] NMR structure of the principal neutralizing determinant of HIV-1 displayed in filamen

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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, 03:03 PM

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NMR structure of the principal neutralizing determinant of HIV-1 displayed in filamen

NMR structure of the principal neutralizing determinant of HIV-1 displayed in filamentous bacteriophage coat protein.

Related Articles NMR structure of the principal neutralizing determinant of HIV-1 displayed in filamentous bacteriophage coat protein.

J Mol Biol. 1997 Mar 7;266(4):649-55

Authors: Jelinek R, Terry TD, Gesell JJ, Malik P, Perham RN, Opella SJ

An NMR approach for structure determination of short peptides displayed on the surface of filamentous bacteriophage virions is demonstrated using the hexapeptide GPGRAF that constitutes the principal neutralizing determinant of HIV-1. This peptide was inserted near the N terminus of the major coat protein of bacteriophage fd. NMR studies of the recombinant protein solubilized in detergent micelles showed that the inserted peptide adopts a double bend S-shaped conformation that is similar to the antibody-bound structure determined by X-ray crystallography. This indicates that a peptide displayed on the bacteriophage coat protein has an enhanced propensity to adopt a conformation similar to that found in the native protein from which it is derived. This approach may be generally applicable to the structure determination of peptide epitopes and other small peptides.

PMID: 9102458 [PubMed - indexed for MEDLINE]

Source: PubMed

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