Search

Analysis of the structural and molecular basis of voltage-sensitive sodium channel inhibition by the spider toxin, Huwentoxin-IV ( -TRTX-Hh2a).
Authors
Gibbs, A.
Assembly
Huwentoxin-IV
Entity
1. Huwentoxin-IV (polymer), 35 monomers, 3998.674 Da Detail

ECLEIFKACN PSNDQCCKSS KLVCSRKTRA CKYQI


Formula weight
3998.674 Da
Exptl. method
solution NMR
Refine. method
simulated annealing
Data set
assigned_chemical_shifts
Chem. Shift Complete
Sequence coverage: 97.1 %, Completeness: 76.3 %, Completeness (bb): 97.1 % Detail

Polymer type: polypeptide(L)

Total1H
All76.3 % (167 of 219)76.3 % (167 of 219)
Backbone97.1 % (67 of 69)97.1 % (67 of 69)
Sidechain66.7 % (100 of 150)66.7 % (100 of 150)
Aromatic22.2 % (2 of 9)22.2 % (2 of 9)
Methyl92.3 % (12 of 13)92.3 % (12 of 13)

1. Huwentoxin-IV

ECLEIFKACN PSNDQCCKSS KLVCSRKTRA CKYQI

Sample

Solvent system 90% H2O/10% D2O, Pressure 1 atm, Temperature 298 K, pH 6.7


#NameIsotope labelingTypeConcentration
1Huwentoxin-IVnatural abundance2 mM
2sodium phosphatenatural abundance20 mM
3sodium azidenatural abundance150 uM
4EDTA[U-2H]100 uM
5H2Onatural abundance90 %
6D2Onatural abundance10 %

Protein Blocks Logo
Calculated from 20 models in PDB: 2M4Z, Strand ID: A Detail


Release date
2013-06-16
Citation
Analysis of the structural and molecular basis of voltage-sensitive sodium channel inhibition by the spider toxin huwentoxin-IV (μ-TRTX-Hh2a)
Minassian, N.A., Gibbs, A., Shih, A.Y., Liu, Y., Neff, R.A., Sutton, S.W., Mirzadegan, T., Connor, J., Fellows, R., Husovsky, M., Nelson, S., Hunter, M.J., Flinspach, M., Wickenden, A.D.
J. Biol. Chem. (2013), 288, 22707-22720, PubMed 23760503 , DOI 10.1074/jbc.M113.461392 ,
Related entities 1. Huwentoxin-IV, : 1 : 5 : 106 entities Detail
Experiments performed 4 experiments Detail
NMR combined restraints 6 contents Detail
Keywords venom toxin