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Analysis of the structural and molecular basis of voltage-sensitive sodium channel inhibition by the spider toxin, Huwentoxin-IV ( -TRTX-Hh2a).
Authors
Gibbs, A., Flinspach, M.
Assembly
HWTX-IV
Entity
1. HWTX-IV (polymer), 35 monomers, 4113.806 Da Detail

ECLEIFKACN PSNDQCCKSS KLVCSRKTRW CKYQI


Formula weight
4113.806 Da
Source organism
Haplopelma schmidti
Exptl. method
solution NMR
Refine. method
simulated annealing
Data set
assigned_chemical_shifts
Chem. Shift Complete
Sequence coverage: 94.3 %, Completeness: 77.9 %, Completeness (bb): 91.3 % Detail

Polymer type: polypeptide(L)

Total1H
All77.9 % (176 of 226)77.9 % (176 of 226)
Backbone91.3 % (63 of 69)91.3 % (63 of 69)
Sidechain72.0 % (113 of 157)72.0 % (113 of 157)
Aromatic66.7 % (10 of 15)66.7 % (10 of 15)
Methyl75.0 % (9 of 12)75.0 % (9 of 12)

1. HWTX-IV

ECLEIFKACN PSNDQCCKSS KLVCSRKTRW CKYQI

Sample

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


#NameIsotope labelingTypeConcentration
1HWTX-IVnatural abundance2 mM
2sodium phosphatenatural abundance20 mM
3sodium azidenatural abundance150 uM
4EDTAnatural abundance100 uM
5H2Onatural abundance90 %
6D2Onatural abundance10 %

Protein Blocks Logo
Calculated from 20 models in PDB: 2M4X, 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 ,
Entries sharing articles BMRB: 2 entries Detail
  BMRB: 19030 released on 2013-06-16
    Title Analysis of the structural and molecular basis of voltage-sensitive sodium channel inhibition by the spider toxin, Huwentoxin-IV ( -TRTX-Hh2a).
  BMRB: 19032 released on 2013-06-16
    Title Analysis of the structural and molecular basis of voltage-sensitive sodium channel inhibition by the spider toxin, Huwentoxin-IV ( -TRTX-Hh2a).
Related entities 1. HWTX-IV, : 1 : 3 : 2 : 66 entities Detail
Experiments performed 4 experiments Detail
NMR combined restraints 7 contents Detail
Keywords venom, toxin