NMR paper NMR and ICP spectroscopic analysis of the DNA-binding domain of the Drosophila GCM pr

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[NMR paper] NMR and ICP spectroscopic analysis of the DNA-binding domain of the Drosophila GCM pr

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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, 09:01 PM

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NMR and ICP spectroscopic analysis of the DNA-binding domain of the Drosophila GCM pr

NMR and ICP spectroscopic analysis of the DNA-binding domain of the Drosophila GCM protein reveals a novel Zn2+ -binding motif.

Related Articles NMR and ICP spectroscopic analysis of the DNA-binding domain of the Drosophila GCM protein reveals a novel Zn2+ -binding motif.

Protein Eng. 2003 Apr;16(4):247-54

Authors: Shimizu M, Hiroaki H, Kohda D, Hosoya T, Akiyama-Oda Y, Hotta Y, Morita EH, Morikawa K

Drosophila GCM (glial cell missing) is a novel DNA-binding protein that determines the fate of glial precursors from the neural default to glia. The GCM protein contains the functional domain that is essential for recognition of the upstream sequence of the repo gene. In the DNA-binding region of this GCM protein, there is a cysteine-rich region with which divalent metal ions such as Zn(2+) must bind and other proteins belonging to the GCM family have a corresponding region. To obtain a more detailed insight into the structural and functional features of this DNA-binding region, we have determined the minimal DNA-binding domain and obtained inductively coupled plasma atomic emission spectra and (1)H-(15)N, (1)H-(15)N-(13)C and (113)Cd(2+) NMR spectra, with or without its specific DNA molecule. Considering the results, it was concluded that the minimal DNA-binding domain includes two Zn(2+)-binding sites, one of which is adjacent to the interface for DNA binding. Systematic mutational analyses of the conserved cysteine residues in the minimal DNA-binding domain revealed that one Zn(2+)-binding site is indispensable for stabilization of the higher order structure of this DNA-binding domain, but that the other is not.

PMID: 12736367 [PubMed - indexed for MEDLINE]

Source: PubMed

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