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Solution structure of K2 lobe of double-knot toxin
Authors
Bae, C., Anselmi, C., Kalia, J., Jara-Oseguera, A., Schwieters, C.D., Krepkiy, D., Lee, C., Kim, E., Kim, J., Faraldo-Gomez, J.D., Swartz, K.J.
Assembly
K2 lobe of double-knot toxin
Entity
1. K2 lobe of double-knot toxin (polymer, Thiol state: all disulfide bound), 33 monomers, 3681.247 Da Detail

NCAKEGEVCG WGSKCCHGLD CPLAFIPYCE KYR


Formula weight
3681.247 Da
Entity Connection
disulfide 3 Detail

IDTypeValue orderAtom ID 1Atom ID 2
1disulfidesing1:CYS2:SG1:CYS16:SG
2disulfidesing1:CYS9:SG1:CYS21:SG
3disulfidesing1:CYS15:SG1:CYS29:SG

Source organism
Haplopelma schmidti
Exptl. method
solution NMR
Refine. method
simulated annealing
Data set
assigned_chemical_shifts
Chem. Shift Complete
Sequence coverage: 100.0 %, Completeness: 92.8 %, Completeness (bb): 98.5 % Detail

Polymer type: polypeptide(L)

Total1H
All92.8 % (180 of 194)92.8 % (180 of 194)
Backbone98.5 % (67 of 68)98.5 % (67 of 68)
Sidechain89.7 % (113 of 126)89.7 % (113 of 126)
Aromatic95.2 % (20 of 21)95.2 % (20 of 21)
Methyl100.0 % (10 of 10)100.0 % (10 of 10)

1. K2

NCAKEGEVCG WGSKCCHGLD CPLAFIPYCE KYR

Sample

Solvent system 90% H2O/10% D2O, Pressure 1 atm, Temperature 298 K, pH 4.0


#NameIsotope labelingTypeConcentration
1K2natural abundance1 mM
2H2Onatural abundance90 %
3D2Onatural abundance10 %

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


Release date
2016-02-28
Citation
Structural insights into the mechanism of activation of the TRPV1 channel by a membrane-bound tarantula toxin
Bae, C., Anselmi, C., Kalia, J., Jara-Oseguera, A., Schwieters, C.D., Krepkiy, D., Lee, C., Kim, E., Kim, J., Faraldo-Gomez, J.D., Swartz, K.J.
Elife (2016), 5, e11273-e11273, PubMed 26880553 , DOI 10.7554/eLife.11273 ,
Related entities 1. K2 lobe of double-knot toxin, : 1 : 2 : 2 entities Detail
Interaction partners 1. K2 lobe of double-knot toxin, : 1 interactors Detail
Experiments performed 3 experiments Detail
NMR combined restraints 4 contents Detail
Keywords DkTx, ICK, K2, double-knot toxin, spider, tarantula, toxins, trpv1