NMR paper NMR characterization and solution structure determination of the oxidized cytochrome

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[NMR paper] NMR characterization and solution structure determination of the oxidized cytochrome

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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, 02:20 PM

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NMR characterization and solution structure determination of the oxidized cytochrome

NMR characterization and solution structure determination of the oxidized cytochrome c7 from Desulfuromonas acetoxidans.

Related Articles NMR characterization and solution structure determination of the oxidized cytochrome c7 from Desulfuromonas acetoxidans.

Proc Natl Acad Sci U S A. 1996 Dec 10;93(25):14396-400

Authors: Banci L, Bertini I, Bruschi M, Sompornpisut P, Turano P

The solution structure of the three-heme electron transfer protein cytochrome c7 from Desulfuromonas acetoxidans is reported. The determination of the structure is obtained through NMR spectroscopy on the fully oxidized, paramagnetic form. The richness of structural motifs and the presence of three prosthetic groups in a protein of 68 residues is discussed in comparison with the four-heme cytochromes c3 already characterized through x-ray crystallography. In particular, the orientation of the three hemes present in cytochrome c7 is similar to that of three out of four hemes of cytochromes c3. The reduction potentials of the individual hemes, which have been obtained through the sequence-specific assignment of the heme resonances, are discussed with respect to the properties of the protein matrix. This information is relevant for any attempt to understand the electron transfer pathway.

PMID: 8962062 [PubMed - indexed for MEDLINE]

Source: PubMed

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