NMR paper Joint X-ray and NMR refinement of the yeast L30e-mRNA complex.

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[NMR paper] Joint X-ray and NMR refinement of the yeast L30e-mRNA complex.

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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, 09:51 PM

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Joint X-ray and NMR refinement of the yeast L30e-mRNA complex.

Joint X-ray and NMR refinement of the yeast L30e-mRNA complex.

Related Articles Joint X-ray and NMR refinement of the yeast L30e-mRNA complex.

Structure. 2004 Jul;12(7):1165-76

Authors: Chao JA, Williamson JR

L30e, a Saccharomyces cervisiae ribosomal protein, regulates its own expression by binding to a purine-rich asymmetric internal loop located in both its pre-mRNA and mature mRNA. A crystal structure of an MBP-L30e fusion protein in complex with an RNA containing the pre-mRNA regulatory site was solved at 3.24 A. Interestingly, the structure of the RNA differed from that observed in a previously determined NMR structure of the complex. Analysis of the NMR data led to the identification of a single imino proton resonance in the internal loop that had been incorrectly assigned and was principally responsible for the erroneous RNA structure. A structure refinement was performed using both the X-ray diffraction data and the NMR-derived distance and angle restraints. The joint NMR and X-ray refinement resulted in improved stereochemistry and lower crystallographic R factors. The RNA internal loop of the MBP-L30e-mRNA complex adopts the canonical K-turn fold.

PMID: 15242593 [PubMed - indexed for MEDLINE]

Source: PubMed

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