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NMR structure of the dilated cardiomyopathy mutation G159D in troponin C bound to the anchoring region of troponin I
Authors
Baryshnikova, O.K., Robertson, I.M., Mercier, P., Sykes, B.D.
Assembly
mutation G159D in troponin C bound to the anchoring region of troponin I
Entity
1. cCTnC (polymer, Thiol state: not present), 72 monomers, 8419.171 Da Detail

MGKSEEELSD LFRMFDKNAD GYIDLDELKI MLQATGETIT EDDIEELMKD GDKNNDGRID YDEFLEFMKD VE


2. CALCIUM ION (non-polymer), 40.078 × 2 Da
Total weight
8499.327 Da
Max. entity weight
8419.171 Da
Source organism
Homo sapiens
Exptl. method
solution NMR
Refine. method
simulated annealing
Data set
assigned_chemical_shifts
Chem. Shift Complete
Sequence coverage: 100.0 %, Completeness: 80.2 %, Completeness (bb): 83.1 % Detail

Polymer type: polypeptide(L)

Total1H13C15N
All80.2 % (673 of 839)84.1 % (369 of 439)70.7 % (229 of 324)98.7 % (75 of 76)
Backbone83.1 % (359 of 432)96.0 % (143 of 149)68.7 % (145 of 211)98.6 % (71 of 72)
Sidechain80.4 % (381 of 474)77.9 % (226 of 290)83.9 % (151 of 180)100.0 % (4 of 4)
Aromatic33.9 % (19 of 56)57.1 % (16 of 28)10.7 % (3 of 28)
Methyl96.8 % (60 of 62)96.8 % (30 of 31)96.8 % (30 of 31)

1. cCTnC

MGKSEEELSD LFRMFDKNAD GYIDLDELKI MLQATGETIT EDDIEELMKD GDKNNDGRID YDEFLEFMKD VE

Sample #1

Solvent system 90% H2O/10% D2O, Pressure 1 atm, Temperature 273 K, pH 6.7


#NameIsotope labelingTypeConcentration
1cCTnC[U-95% 13C; U-95% 15N]0.5 mM
2Calciumnatural abundance2 mM
3DSSnatural abundance0.2 mM
4potassium chloridenatural abundance100 mM
5sodium azidenatural abundance5 mM
6imidazolenatural abundance10 mM
7troponin I(34-71)natural abundance1.2 mM
8H2Onatural abundance90 %
9D2Onatural abundance10 %
Sample #2

Solvent system 100% D2O, Pressure 1 atm, Temperature 273 K, pH 6.7


#NameIsotope labelingTypeConcentration
10cCTnC[U-95% 13C; U-95% 15N]0.5 mM
11Calciumnatural abundance2 mM
12DSSnatural abundance0.2 mM
13potassium chloridenatural abundance100 mM
14sodium azidenatural abundance5 mM
15imidazolenatural abundance0.5 mM
16troponin I(34-71)natural abundance1.2 mM
17imidazole[U-2H]9.5 mM
18D2Onatural abundance100 %

LACS Plot; CA
Referencing offset: -0.06 ppm, Outliers: 1 Detail
LACS Plot; CB
Referencing offset: -0.06 ppm, Outliers: 1 Detail
LACS Plot; HA
Referencing offset: 0.03 ppm, Outliers: 4 Detail
Protein Blocks Logo
Calculated from 20 models in PDB: 2MLF, Strand ID: C Detail


Release date
2014-03-09
Citation
The dilated cardiomyopathy G159D mutation in cardiac troponin C weakens the anchoring interaction with troponin I
Baryshnikova, O.K., Robertson, I.M., Mercier, P., Sykes, B.D.
Biochemistry (2008), 47, 10950-10960, PubMed 18803402 , DOI 10.1021/bi801165c ,
Entries sharing articles BMRB: 1 entries Detail
  BMRB: 19816 released on 2014-03-09
    Title NMR structure of the C-domain of troponin C bound to the anchoring region of troponin I
Related entities 1. cCTnC, : 1 : 16 : 488 entities Detail
Interaction partners 1. cCTnC, : 8 interactors Detail
Experiments performed 16 experiments Detail
NMR combined restraints 4 contents Detail
Keywords troponin C, metal binding protein, dilated cardiomyopathy, G159D, EF-hand