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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:
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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 Assignments, secondary structure, global fold, and dynamics of chemotaxis Y protein u

Assignments, secondary structure, global fold, and dynamics of chemotaxis Y protein using three- and four-dimensional heteronuclear (13C,15N) NMR spectroscopy.

Related Articles Assignments, secondary structure, global fold, and dynamics of chemotaxis Y protein using three- and four-dimensional heteronuclear (13C,15N) NMR spectroscopy.

Biochemistry. 1994 Sep 6;33(35):10731-42

Authors: Moy FJ, Lowry DF, Matsumura P, Dahlquist FW, Krywko JE, Domaille PJ

NMR spectroscopy has been used to study recombinant Escherichia coli CheY, a 128-residue protein involved in regulating bacterial chemotaxis. Heteronuclear three- and four-dimensional (3D and 4D) experiments have provided sequence-specific resonance assignments and quantitation of short-, medium-, and long-range distance restraints from nuclear Overhauser enhancement (NOE) intensities. These distance restraints were further supplemented with measurements of three-bond scalar coupling constants to define the local dihedral angles, and with the identification of amide protons undergoing slow solvent exchange from which hydrogen-bonding patterns were identified. The current model structure shows the same global fold of CheY as existing X-ray structures (Volz & Matsumura, 1991; Stock et al. 1993) with a (beta/alpha)5 motif of five parallel beta-strands at the central core surrounded by three alpha-helices on one face and with two on the opposite side. Heteronuclear 15N-1H relaxation experiments are interpreted to show portions of the protein structure in the Mg2+ binding loop are ill-defined because of slow motion (chemical exchange) on the NMR time scale. Moreover, the presence of Mg2+ disrupts the salt bridge between the highly conserved Lys-109 and Asp-57, the site of phosphorylation.

PMID: 8075074 [PubMed - indexed for MEDLINE]



Source: PubMed
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