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Solution NMR structure of the KCNQ1 voltage-sensing domain
Authors
Taylor, K.C., Kuenze, G., Smith, J.A., Meiler, J., McFeeters, R.L., Sanders, C.R.
Assembly
Potassium voltage-gated channel subfamily KQT member 1
Entity
1. Potassium voltage-gated channel subfamily KQT member 1 (polymer), 159 monomers, 18158.40 Da Detail

MGHHHHHHGV LARTHVQGRV YNFLERPTGW KCFVYHFAVF LIVLVCLIFS VLSTIEQYAA LATGTLFWME IVLVVFFGTE YVVRLWSAGC RSKYVGLWGR LRFARKPISI IDLIVVVASM VVLCVGSKGQ VFATSAIRGI RFLQILRMLH VDRQGGTWR


Formula weight
18158.4 Da
Source organism
Homo sapiens
Exptl. method
solution NMR
Refine. method
molecular dynamics
Data set
assigned_chemical_shifts
Chem. Shift Complete
Sequence coverage: 93.1 %, Completeness: 73.5 %, Completeness (bb): 86.1 % Detail

Polymer type: polypeptide(L)

Total1H13C15N
All73.5 % (1413 of 1922)75.5 % (738 of 978)67.9 % (527 of 776)88.1 % (148 of 168)
Backbone86.1 % (818 of 950)88.2 % (291 of 330)83.2 % (385 of 463)90.4 % (142 of 157)
Sidechain63.6 % (710 of 1117)68.7 % (445 of 648)56.6 % (259 of 458)54.5 % (6 of 11)
Aromatic23.2 % (57 of 246)37.4 % (46 of 123) 5.1 % (6 of 118)100.0 % (5 of 5)
Methyl87.3 % (206 of 236)89.8 % (106 of 118)84.7 % (100 of 118)

1. entity 1

MGHHHHHHGV LARTHVQGRV YNFLERPTGW KCFVYHFAVF LIVLVCLIFS VLSTIEQYAA LATGTLFWME IVLVVFFGTE YVVRLWSAGC RSKYVGLWGR LRFARKPISI IDLIVVVASM VVLCVGSKGQ VFATSAIRGI RFLQILRMLH VDRQGGTWR

Sample #1

Solvent system 95% H2O/5% D2O, Pressure 1 atm, Temperature 323 K, pH 5.5, Details 0.4 mM [U-100% 13C; U-100% 15N; U-80% 2H] KCNQ1-VSD, 50 mM MES, 0.5 mM EDTA, 2 mM TCEP, 4 % w/v LMPG, 95% H2O/5% D2O


#NameIsotope labelingTypeConcentration
1KCNQ1-VSD[U-100% 13C; U-100% 15N; U-80% 2H]0.4 mM
2MESnatural abundance50 mM
3EDTAnatural abundance0.5 mM
4TCEPnatural abundance2 mM
5LMPGnatural abundance4 % w/v
Sample #2

Solvent system 95% H2O/5% D2O, Pressure 1 atm, Temperature 323 K, pH 5.5, Details 0.4 mM [U-100% 13C; U-100% 15N] KCNQ1-VSD, 50 mM MES, 0.5 mM EDTA, 2 mM TCEP, 4 % w/v LMPG, 95% H2O/5% D2O


#NameIsotope labelingTypeConcentration
6KCNQ1-VSD[U-100% 13C; U-100% 15N]0.4 mM
7MESnatural abundance50 mM
8EDTAnatural abundance0.5 mM
9TCEPnatural abundance2 mM
10LMPGnatural abundance4 % w/v
Sample #3

Solvent system 100% D2O, Pressure 1 atm, Temperature 323 K, pH 5.5, Details 0.4 mM [U-100% 13C; U-100% 15N] KCNQ1-VSD, 50 mM MES, 0.5 mM EDTA, 2 mM TCEP, 4 % w/v Deuterated LMPG, 100% D2O


#NameIsotope labelingTypeConcentration
11KCNQ1-VSD[U-100% 13C; U-100% 15N]0.4 mM
12MESnatural abundance50 mM
13EDTAnatural abundance0.5 mM
14TCEPnatural abundance2 mM
15Deuterated LMPGnatural abundance4 % w/v
Sample #4

Solvent system 95% H2O/5% D2O, Pressure 1 atm, Temperature 323 K, pH 5.5, Details 0.4 mM [U-100% 15N] KCNQ1-VSD, 50 mM MES, 0.5 mM EDTA, 2 mM TCEP, 4 % w/v LMPG, 95% H2O/5% D2O


#NameIsotope labelingTypeConcentration
16KCNQ1-VSD[U-100% 15N]0.4 mM
17MESnatural abundance50 mM
18EDTAnatural abundance0.5 mM
19TCEPnatural abundance2 mM
20LMPGnatural abundance4 % w/v
Sample #5

Solvent system 95% H2O/5% D2O, Pressure 1 atm, Temperature 323 K, pH 5.5, Details 0.2 mM [U-100% 15N] KCNQ1-VSD, 50 mM MES, 0.5 mM EDTA, 2 mM TCEP, 4 mM LMPG, 95% H2O/5% D2O


#NameIsotope labelingTypeConcentration
21KCNQ1-VSD[U-100% 15N]0.2 mM
22MESnatural abundance50 mM
23EDTAnatural abundance0.5 mM
24TCEPnatural abundance2 mM
25LMPGnatural abundance4 mM
Sample #6

Solvent system 95% H2O/5% D2O, Pressure 1 atm, Temperature 323 K, pH 5.5, Details 0.2 mM [U-100% 15N] KCNQ1-VSD, 50 mM MES, 0.5 mM EDTA, 2 mM TCEP, 4 mM LMPG, 95% H2O/5% D2O


#NameIsotope labelingTypeConcentration
26KCNQ1-VSD[U-100% 15N]0.2 mM
27MESnatural abundance50 mM
28EDTAnatural abundance0.5 mM
29TCEPnatural abundance2 mM
30LMPGnatural abundance4 mM
Sample #7

Solvent system 95% H2O/5% D2O, Pressure 1 atm, Temperature 323 K, pH 5.5, Details 0.2 mM [U-100% 15N] KCNQ1-VSD, 50 mM MES, 0.5 mM EDTA, 2 mM TCEP, 4 % w/v LMPG, 95% H2O/5% D2O


#NameIsotope labelingTypeConcentration
31KCNQ1-VSD[U-100% 15N]0.2 mM
32MESnatural abundance50 mM
33EDTAnatural abundance0.5 mM
34TCEPnatural abundance2 mM
35LMPGnatural abundance4 % w/v
Sample #8

Solvent system 95% H2O/5% D2O, Pressure 1 atm, Temperature 323 K, pH 5.5, Details 0.2 mM [U-100% 15N] KCNQ1-VSD, 50 mM MES, 0.5 mM EDTA, 2 mM TCEP, 4 % w/v LMPG, 95% H2O/5% D2O


#NameIsotope labelingTypeConcentration
36KCNQ1-VSD[U-100% 15N]0.2 mM
37MESnatural abundance50 mM
38EDTAnatural abundance0.5 mM
39TCEPnatural abundance2 mM
40LMPGnatural abundance4 % w/v
Sample #9

Solvent system 95% H2O/5% D2O, Pressure 1 atm, Temperature 323 K, pH 5.5, Details 0.2 mM [U-100% 15N] KCNQ1-VSD, 50 mM MES, 0.5 mM EDTA, 2 mM TCEP, 4 % w/v LMPG, 95% H2O/5% D2O


#NameIsotope labelingTypeConcentration
41KCNQ1-VSD[U-100% 15N]0.2 mM
42MESnatural abundance50 mM
43EDTAnatural abundance0.5 mM
44TCEPnatural abundance2 mM
45LMPGnatural abundance4 % w/v
Sample #10

Solvent system 95% H2O/5% D2O, Pressure 1 atm, Temperature 323 K, pH 5.5, Details 0.2 mM [U-100% 15N] KCNQ1-VSD, 50 mM MES, 0.5 mM EDTA, 2 mM TCEP, 4 % w/v LMPG, 95% H2O/5% D2O


#NameIsotope labelingTypeConcentration
46KCNQ1-VSD[U-100% 15N]0.2 mM
47MESnatural abundance50 mM
48EDTAnatural abundance0.5 mM
49TCEPnatural abundance2 mM
50LMPGnatural abundance4 % w/v
Sample #11

Solvent system 95% H2O/5% D2O, Pressure 1 atm, Temperature 323 K, pH 5.5, Details 0.2 mM [U-100% 15N] KCNQ1-VSD, 50 mM MES, 0.5 mM EDTA, 2 mM TCEP, 4 % w/v LMPG, 95% H2O/5% D2O


#NameIsotope labelingTypeConcentration
51KCNQ1-VSD[U-100% 15N]0.2 mM
52MESnatural abundance50 mM
53EDTAnatural abundance0.5 mM
54TCEPnatural abundance2 mM
55LMPGnatural abundance4 % w/v
Sample #12

Solvent system 95% H2O/5% D2O, Pressure 1 atm, Temperature 323 K, pH 5.5, Details 0.2 mM [U-100% 15N] KCNQ1-VSD, 50 mM MES, 0.5 mM EDTA, 2 mM TCEP, 4 % w/v LMPG, 95% H2O/5% D2O


#NameIsotope labelingTypeConcentration
56KCNQ1-VSD[U-100% 15N]0.2 mM
57MESnatural abundance50 mM
58EDTAnatural abundance0.5 mM
59TCEPnatural abundance2 mM
60LMPGnatural abundance4 % w/v
Sample #13

Solvent system 95% H2O/5% D2O, Pressure 1 atm, Temperature 323 K, pH 5.5, Details 0.2 mM [U-100% 15N] KCNQ1-VSD, 50 mM MES, 0.5 mM EDTA, 2 mM TCEP, 4 % w/v LMPG, 95% H2O/5% D2O


#NameIsotope labelingTypeConcentration
61KCNQ1-VSD[U-100% 15N]0.2 mM
62MESnatural abundance50 mM
63EDTAnatural abundance0.5 mM
64TCEPnatural abundance2 mM
65LMPGnatural abundance4 % w/v

Protein Blocks Logo
Calculated from 10 models in PDB: 6MIE, Strand ID: A Detail


Release date
2018-10-02
Citation
Structure and physiological function of the human KCNQ1 channel voltage sensor intermediate state
Taylor, K.C., Kang, P.W., Hou, P., Kuenze, G., Yang, N., Smith, J.A., Shi, J., Huang, H., White, K.M., Peng, D., George, A.L., Meiler, J., McFeeters, R.L., Cui, J., Sanders, C.R.
Elife (2020), 9, e53901-e53901, PubMed 32096762 , DOI 10.7554/eLife.53901 ,
Related entities 1. Potassium voltage-gated channel subfamily KQT member 1, : 1 : 5 : 100 entities Detail
Interaction partners 1. Potassium voltage-gated channel subfamily KQT member 1, : 2 interactors Detail
Experiments performed 24 experiments Detail
Chemical shift validation 3 contents Detail
Keywords KCNQ1, Kv7.1, MEMBRANE PROTEIN, ion channel, potassium channel, voltage sensor