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NMR processing:
MDD
NMR assignment:
Backbone:
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MARS
UNIO Match
PINE
Side-chains:
UNIO ATNOS-Ascan
NOEs:
UNIO ATNOS-Candid
UNIO Candid
ASDP
Structure from NMR restraints:
Ab initio:
GeNMR
Cyana
XPLOR-NIH
ASDP
UNIO ATNOS-Candid
UNIO Candid
Fragment-based:
BMRB CS-Rosetta
Rosetta-NMR (Robetta)
Template-based:
GeNMR
I-TASSER
Refinement:
Amber
Structure from chemical shifts:
Fragment-based:
WeNMR CS-Rosetta
BMRB CS-Rosetta
Homology-based:
CS23D
Simshift
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:
Shiftcor
UNIO Shiftinspector
LACS
CheckShift
RefDB
NMR model quality:
NOEs, other restraints:
PROSESS
PSVS
RPF scores
iCing
Chemical shifts:
PROSESS
CheShift2
Vasco
iCing
RDCs:
DC
Anisofit
Pseudocontact shifts:
Anisofit
Protein geomtery:
Resolution-by-Proxy
PROSESS
What-If
iCing
PSVS
MolProbity
SAVES2 or SAVES4
Vadar
Prosa
ProQ
MetaMQAPII
PSQS
Eval123D
STAN
Ramachandran Plot
Rampage
ERRAT
Verify_3D
Harmony
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:
camLILA
ccSOL
Camfold
camGroEL
Zyggregator
Isotope labeling:
UPLABEL
Solid-state NMR:
sedNMR


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Default 1H NMR resonance assignments, secondary structure, and global fold of Apo bovine calb

1H NMR resonance assignments, secondary structure, and global fold of Apo bovine calbindin D9k.

Related Articles 1H NMR resonance assignments, secondary structure, and global fold of Apo bovine calbindin D9k.

Biochemistry. 1990 Jun 19;29(24):5752-61

Authors: Skelton NJ, Forsén S, Chazin WJ

The solution structure and dynamics of apo bovine calbindin D9k have been studied by a wide range of two-dimensional 1H nuclear magnetic resonance experiments. Due to the presence of conformational heterogeneity in the wild-type protein, the sequential resonance assignment was carried out on a Pro43----Gly mutant. By use of a combination of scalar correlation experiments acquired from H2O solution, 61 of the 76 1H spin systems could be assigned to particular amino acid types. The remaining resonances were assigned by a parallel series of experiments acquired from 2H2O solution. These spin system assignments provided a basis for complete sequential resonance assignments from interresidue backbone nuclear Overhauser effects (NOEs). Elements of secondary structure were identified from sequential and medium-range NOEs, backbone spin-spin coupling constants, and slowly exchanging amide protons. Four sections of helix are delineated, together with a short antiparallel beta-sheet interaction between the peptide loops involved in Ca2+ binding. The global fold is provided by combining these elements of secondary structure with a subset of the long-range, interhelix NOEs. Comparison with similar studies on the Ca2(+)-saturated protein indicates that at this crude level the structures are very similar. However, removal of the Ca2+ does dramatically affect the dynamics of the protein, as judged by amide proton exchange rates and aromatic ring rotation. This is particularly evident in the increased flexibility of the residues in the hydrophobic core.

PMID: 2200514 [PubMed - indexed for MEDLINE]



Source: PubMed
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