NMR paper 15N NMR assignments and chemical shift analysis of uniformly labeled 15N calbindin D9

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[NMR paper] 15N NMR assignments and chemical shift analysis of uniformly labeled 15N calbindin D9

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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, 11:41 PM

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15N NMR assignments and chemical shift analysis of uniformly labeled 15N calbindin D9

15N NMR assignments and chemical shift analysis of uniformly labeled 15N calbindin D9k in the apo, (Cd2+)1 and (Ca2+)2 states.

Related Articles 15N NMR assignments and chemical shift analysis of uniformly labeled 15N calbindin D9k in the apo, (Cd2+)1 and (Ca2+)2 states.

FEBS Lett. 1992 Jun 1;303(2-3):136-40

Authors: Skelton NJ, Akke M, KÃ¶rdel J, Thulin E, ForsÃ©n S, Chazin WJ

15N has been uniformly incorporated into the EF-hand Ca(2+)-binding protein calbindin D9k so that heteronuclear experiments can be used to further characterize the structure and dynamics of the apo, (Cd2+)1 and (Ca2+)2 states of the protein. The 15N NMR resonances were assigned by 2D 15N-resolved 1H experiments, which also allowed the identification of a number of sequential and medium-range 1H-1H contacts that are obscured by chemical shift degeneracy in homonuclear experiments. The 15N chemical shifts are analyzed with respect to correlations with protein secondary structure. In addition, the changes in 15N chemical shift found for the apo----(Cd2+)1----(Ca2+)2 binding sequence confirm that the effects on the protein are mainly associated with chelation of the first ion.

PMID: 1607011 [PubMed - indexed for MEDLINE]

Source: PubMed

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