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Solution structure Analysis of the ImKTx104
Authors
Zeng, D.Y., Jiang, L.
Assembly
Acidic Scorpion Potassium Channel Toxins
Entity
1. Acidic Scorpion Potassium Channel Toxins (polymer, Thiol state: all disulfide bound), 27 monomers, 2926.431 Da Detail

ACVTHEDCTL LCYDTIGTCV DGKCKCM


Formula weight
2926.431 Da
Entity Connection
disulfide 3 Detail

IDTypeValue orderAtom ID 1Atom ID 2
1disulfidesing1:CYS2:SG1:CYS19:SG
2disulfidesing1:CYS8:SG1:CYS24:SG
3disulfidesing1:CYS12:SG1:CYS26:SG

Source organism
Lychas mucronatus
Exptl. method
solution NMR
Refine. method
simulated annealing, energy minimization
Data set
assigned_chemical_shifts
Chem. Shift Complete
Sequence coverage: 96.3 %, Completeness: 94.2 %, Completeness (bb): 94.6 % Detail

Polymer type: polypeptide(L)

Total1H
All94.2 % (131 of 139)94.2 % (131 of 139)
Backbone94.6 % (53 of 56)94.6 % (53 of 56)
Sidechain94.0 % (78 of 83)94.0 % (78 of 83)
Aromatic33.3 % (2 of 6)33.3 % (2 of 6)
Methyl100.0 % (15 of 15)100.0 % (15 of 15)

1. entity 1

ACVTHEDCTL LCYDTIGTCV DGKCKCM

Sample

Solvent system 90% H2O, 10% D2O, Temperature 300 K, pH 5, Details 20mM phosphate buffer (pH 5); 90% H2O, 10% D2O


#NameIsotope labelingTypeConcentration
1entity_1[U-15N]2 mM
2sodium phosphatenatural abundance20 mM
3H2Onatural abundance90 % v/v
4D2O[U-99% 2H]10 % v/v

Protein Blocks Logo
Calculated from 20 models in PDB: 2LIX, Strand ID: A Detail


Release date
2012-07-22
Citation
Structural and functional diversity of acidic scorpion potassium channel toxins
Chen, Z.Y., Zeng, D.Y., Hu, Y.T., He, Y., Pan, N., Ding, J.W., Cao, Z.P., Liu, M.J., Li, W.L., Yi, H.X., Jiang, L., Wu, Y.L.
PLoS One (2012), 7, e35154-e35154, PubMed 22511981 , DOI 10.1371/journal.pone.0035154 ,
Related entities 1. Acidic Scorpion Potassium Channel Toxins, : 1 : 1 : 3 entities Detail
Experiments performed 4 experiments Detail
NMR combined restraints 4 contents Detail
Keywords disulfide bond stabilized structure