NMR paper The interactions of cyanobacterial cytochrome c6 and cytochrome f, characterized by N

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[NMR paper] The interactions of cyanobacterial cytochrome c6 and cytochrome f, characterized by N

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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, 08:58 PM

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The interactions of cyanobacterial cytochrome c6 and cytochrome f, characterized by N

The interactions of cyanobacterial cytochrome c6 and cytochrome f, characterized by NMR.

Related Articles The interactions of cyanobacterial cytochrome c6 and cytochrome f, characterized by NMR.

J Biol Chem. 2002 Dec 13;277(50):48685-9

Authors: Crowley PB, Díaz-Quintana A, Molina-Heredia FP, Nieto P, Sutter M, Haehnel W, De La Rosa MA, Ubbink M

During oxygenic photosynthesis, cytochrome c(6) shuttles electrons between the membrane-bound complexes cytochrome bf and photosystem I. Complex formation between Phormidium laminosum cytochrome f and cytochrome c(6) from both Anabaena sp. PCC 7119 and Synechococcus elongatus has been investigated by nuclear magnetic resonance spectroscopy. Chemical-shift perturbation analysis reveals a binding site on Anabaena cytochrome c(6), which consists of a predominantly hydrophobic patch surrounding the heme substituent, methyl 5. This region of the protein was implicated previously in the formation of the reactive complex with photosytem I. In contrast to the results obtained for Anabaena cytochrome c(6), there is no evidence for specific complex formation with the acidic cytochrome c(6) from Synechococcus. This remarkable variability between analogous cytochromes c(6) supports the idea that different organisms utilize distinct mechanisms of photosynthetic intermolecular electron transfer.

PMID: 12356767 [PubMed - indexed for MEDLINE]

Source: PubMed

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