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NMR structure of the cNTnC-cTnI chimera bound to W6
Authors
Cai, F., Kampourakis, T., Cockburn, K.T., Sykes, B.D.
Assembly
Troponin C, slow skeletal and cardiac muscles,Troponin I, cardiac muscle
Entity
1. Troponin C, slow skeletal and cardiac muscles,Troponin I, cardiac muscle, entity 1 (polymer, Thiol state: not present), 125 monomers, 14162.94 Da Detail

MDDIYKAAVE QLTEEQKNEF KAAFDIFVLG AEDGSISTKE LGKVMRMLGQ NPTPEELQEM IDEVDEDGSG TVDFDEFLVM MVRSMKDDSK GKFKRPTLRR VRISADAMMQ ALLGARAKGH HHHHH


2. Troponin C, slow skeletal and cardiac muscles,Troponin I, cardiac muscle, entity CA (non-polymer), 40.078 Da
3. Troponin C, slow skeletal and cardiac muscles,Troponin I, cardiac muscle, entity WW6 (non-polymer), 326.842 Da
Total weight
14529.86 Da
Max. entity weight
14162.94 Da
Source organism
Homo sapiens
Exptl. method
solution NMR
Data set
assigned_chemical_shifts
Chem. Shift Complete
Sequence coverage: 96.0 %, Completeness: 76.5 %, Completeness (bb): 75.8 % Detail

Polymer type: polypeptide(L)

Total1H13C15N
All76.5 % (1111 of 1452)80.0 % (605 of 756)70.2 % (393 of 560)83.1 % (113 of 136)
Backbone75.8 % (564 of 744)84.4 % (216 of 256)64.2 % (235 of 366)92.6 % (113 of 122)
Sidechain79.0 % (651 of 824)77.2 % (386 of 500)85.5 % (265 of 310) 0.0 % (0 of 14)
Aromatic33.7 % (31 of 92)30.4 % (14 of 46)37.0 % (17 of 46)
Methyl92.4 % (109 of 118)89.8 % (53 of 59)94.9 % (56 of 59)

1. entity 1

MDDIYKAAVE QLTEEQKNEF KAAFDIFVLG AEDGSISTKE LGKVMRMLGQ NPTPEELQEM IDEVDEDGSG TVDFDEFLVM MVRSMKDDSK GKFKRPTLRR VRISADAMMQ ALLGARAKGH HHHHH

Sample

Solvent system 100% D2O, Pressure 1 atm, Temperature 303 K, pH 6.7 (±0.1), Details 0.4 mM [U-100% 13C; U-100% 15N] cChimera_protein, 100 mM potassium chloride, 10 mM imidazole, 10 mM calcium chloride, 0.25 mM [U-99% 2H] DSS, 2.5 mM W6, 5 % [U-99% 2H] DMSO, 100% D2O


#NameIsotope labelingTypeConcentration
1cChimera_protein[U-100% 13C; U-100% 15N]0.4 mM
2potassium chloridenatural abundance100 mM
3imidazolenatural abundance10 mM
4calcium chloridenatural abundance10 mM
5DSS[U-99% 2H]0.25 mM
6W6natural abundance2.5 mM
7DMSO[U-99% 2H]5 %

Release date
2022-04-14
Citation
Drugging the Sarcomere, a Delicate Balance: Position of N-Terminal Charge of the Inhibitor W7
Cai, F., Kampourakis, T., Cockburn, K.T., Sykes, B.D.
ACS Chem. Biol. (2022), 17, 1495-1504, PubMed 35649123 , DOI 10.1021/acschembio.2c00126 ,
Entries sharing articles BMRB: 1 entries Detail
  BMRB: 31005 released on 2022-04-14
    Title NMR structure of the cNTnC-cTnI chimera bound to W8
Related entities 1. Troponin C, slow skeletal and cardiac muscles,Troponin I, cardiac muscle, entity 1, : 1 : 4 : 4 : 38 entities Detail
Experiments performed 3 experiments Detail
nullKeywords EF hand, METAL BINDING PROTEIN, calcium binding protein, calcium modulator, cardiac troponin