NMR paper NMR chemical shift perturbation mapping of DNA binding by a zinc-finger domain from t

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[NMR paper] NMR chemical shift perturbation mapping of DNA binding by a zinc-finger domain from t

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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, 05:08 PM

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NMR chemical shift perturbation mapping of DNA binding by a zinc-finger domain from t

NMR chemical shift perturbation mapping of DNA binding by a zinc-finger domain from the yeast transcription factor ADR1.

Related Articles NMR chemical shift perturbation mapping of DNA binding by a zinc-finger domain from the yeast transcription factor ADR1.

Protein Sci. 1997 Sep;6(9):1835-48

Authors: Schmiedeskamp M, Rajagopal P, Klevit RE

Mutagenesis studies have revealed that the minimal DNA-binding domain of the yeast transcription factor ADR1 consists of two Cys2-His2 zinc fingers plus an additional 20 residues proximal and N-terminal to the fingers. We have assigned NMR 1H, 15N, and 13C chemical shifts for the entire minimal DNA-binding domain of ADR1 both free and bound to specific DNA. 1H chemical shift values suggest little structural difference between the zinc fingers in this construct and in single-finger constructs, and 13C alpha chemical shift index analysis indicates little change in finger structure upon DNA binding. 1H chemical shift perturbations upon DNA binding are observed, however, and these are mapped to define the protein-DNA interface. The two zinc fingers appear to bind DNA with different orientations, as the entire helix of finger 1 is perturbed, while only the extreme N-terminus of the finger 2 helix is affected. Furthermore, residues N-terminal to the first finger undergo large chemical shift changes upon DNA binding suggesting a role at the protein-DNA interface. A striking correspondence is observed between the protein-DNA interface mapped by chemical shift changes and that previously mapped by mutagenesis.

PMID: 9300483 [PubMed - indexed for MEDLINE]

Source: PubMed

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