NMR paper A two-dimensional 1H-NMR study on Megasphaera elsdenii flavodoxin in the oxidized sta

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[NMR paper] A two-dimensional 1H-NMR study on Megasphaera elsdenii flavodoxin in the oxidized sta

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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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08-21-2010, 11:04 PM

nmrlearner

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A two-dimensional 1H-NMR study on Megasphaera elsdenii flavodoxin in the oxidized sta

A two-dimensional 1H-NMR study on Megasphaera elsdenii flavodoxin in the oxidized state and some comparisons with the two-electron-reduced state.

Related Articles A two-dimensional 1H-NMR study on Megasphaera elsdenii flavodoxin in the oxidized state and some comparisons with the two-electron-reduced state.

Eur J Biochem. 1990 Nov 26;194(1):199-216

Authors: van Mierlo CP, van der Sanden BP, van Woensel P, Müller F, Vervoort J

Assignments for the 137 amino acid residues of oxidized Megasphaera elsdenii flavodoxin have been made using the sequential resonance assignment procedure. Great benefit was experienced from assignments of the fully reduced protein. The secondary and tertiary structures of the typical alpha/beta protein remain virtually identical on going from the oxidized to the two-electron-reduced state as judged from two-dimensional NOE spectroscopy. However, functionally important conformation changes in the flavin-binding region do occur on reduction. Considerable reduction-state-dependent chemical shift variations of protons in the immediate vicinity of the isoalloxazine moiety take place. From analysis of these shifts, it can be concluded that ring current effects of the pyrazine part of the flavin diminish on two-electron reduction.

PMID: 2253616 [PubMed - indexed for MEDLINE]

Source: PubMed

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