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Structure of actin-interacting domain of troponin
Authors
Murakami, K., Yumoto, F., Ohki, S., Yasunaga, T., Tanokura, M., Wakabayashi, T.
Assembly
troponin complex
Entity
1. TnI (polymer, Thiol state: not present), 52 monomers, 6125.877 Da Detail

KVNMDLRANL KQVKKEDTEK EKDLRDVGDW RKNIEEKSGM EGRKKMFEAG ES


2. CA (non-polymer), na Da
Formula weight
6125.877 Da
Source organism
Gallus gallus
Exptl. method
solution NMR
Data set
assigned_chemical_shifts
Chem. Shift Complete
Sequence coverage: 94.2 %, Completeness: 30.8 %, Completeness (bb): 61.5 % Detail

Polymer type: polypeptide(L)

Total1H13C15N
All30.8 % (195 of 634)14.6 % (50 of 343)41.5 % (97 of 234)84.2 % (48 of 57)
Backbone61.5 % (192 of 312)46.3 % (50 of 108)61.8 % (94 of 152)92.3 % (48 of 52)
Sidechain12.7 % (47 of 370) 0.0 % (0 of 235)36.2 % (47 of 130) 0.0 % (0 of 5)
Aromatic 0.0 % (0 of 22) 0.0 % (0 of 11) 0.0 % (0 of 10) 0.0 % (0 of 1)
Methyl 5.9 % (2 of 34) 0.0 % (0 of 17)11.8 % (2 of 17)

1. TnI

KVNMDLRANL KQVKKEDTEK EKDLRDVGDW RKNIEEKSGM EGRKKMFEAG ES

Sample #1

Solvent system 90% H2O/10% D2O, Temperature 298 K, pH 7, Details The troponin ternary complex high Ca2+


#NameIsotope labelingTypeConcentration
1Troponin I[U-13C; U-15N]0.8 ~ 1.2 mM
2Troponin Cnatural abundance0.8 ~ 1.2 mM
3Troponin T2natural abundance0.8 ~ 1.2 mM
4KCl240 mM
5NaHCO30.3 mM
6MgCl23 mM
7CaCl20.1 mM
8H2O90 %
9D2O10 %
Sample #2

Solvent system 100% D2O, Temperature 298 K, pH 7, Details The troponin ternary complex high Ca2+


#NameIsotope labelingTypeConcentration
10Troponin I[U-13C; U-15N]0.8 ~ 1.2 mM
11Troponin Cnatural abundance0.8 ~ 1.2 mM
12Troponin T2natural abundance0.8 ~ 1.2 mM
13KCl240 mM
14NaHCO30.3 mM
15MgCl23 mM
16CaCl20.1 mM
17D2O100 %

LACS Plot; CA
Referencing offset: -0.24 ppm, Outliers: 1 Detail
LACS Plot; CB
Referencing offset: -0.24 ppm, Outliers: 1 Detail
Protein Blocks Logo
Calculated from 20 models in PDB: 1VDJ, Strand ID: A Detail


Release date
2009-05-20
Citation
Structural basis for Ca2+-regulated muscle relaxation at interaction sites of troponin with actin and tropomyosin
Murakami, K., Yumoto, F., Ohki, S., Yasunaga, T., Tanokura, M., Wakabayashi, T.
J. Mol. Biol. (2005), 352, 178-201, PubMed 16061251 , DOI 10.1016/j.jmb.2005.06.067 ,
Related entities 1. TnI, : 1 : 3 : 42 entities Detail
Interaction partners 1. TnI, : 2 interactors Detail
Experiments performed 12 experiments Detail
nullKeywords actin, tropomyosin, troponin