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Solution structure of a Novel Alpha-Conotoxin TxIB
Authors
Luo, S., Zhangsun, D., Wu, Y., Zhu, X., Hu, Y., McIntyre, M., Christensen, S., Akcan, M., Craik, D., McIntosh, J.
Assembly
Conotoxin TxIB
Entity
1. Conotoxin TxIB (polymer), 17 monomers, 1743.000 Da Detail

GCCSDPPCRN KHPDLCX


Formula weight
1743.0 Da
Source organism
Conus textile
Exptl. method
solution NMR
Refine. method
simulated annealing
Data set
assigned_chemical_shifts
Chem. Shift Complete
Sequence coverage: 94.1 %, Completeness: 94.4 %, Completeness (bb): 96.7 % Detail

Polymer type: polypeptide(L)

Total1H
All94.4 % (85 of 90)94.4 % (85 of 90)
Backbone96.7 % (29 of 30)96.7 % (29 of 30)
Sidechain93.3 % (56 of 60)93.3 % (56 of 60)
Aromatic100.0 % (2 of 2)100.0 % (2 of 2)
Methyl100.0 % (2 of 2)100.0 % (2 of 2)

1. Conotoxin TxIB

GCCSDPPCRN KHPDLCX

Sample

Solvent system 90% H2O/10% D2O, Pressure 1 atm, Temperature 280 K, pH 3.5


#NameIsotope labelingTypeConcentration
1Conotoxin_TxIBnatural abundance3 mg
2H2Onatural abundance90 %
3D2Onatural abundance10 %

Protein Blocks Logo
Calculated from 20 models in PDB: 2LZ5, Strand ID: A Detail


Release date
2012-12-03
Citation
Characterization of a novel α-conotoxin from conus textile that selectively targets α6/α3β2β3 nicotinic acetylcholine receptors
Luo, S., Zhangsun, D., Wu, Y., Zhu, X., Hu, Y., McIntyre, M., Christensen, S., Akcan, M., Craik, D.J., McIntosh, J.
J. Biol. Chem. (2013), 288, 894-902, PubMed 23184959 , DOI 10.1074/jbc.M112.427898 ,
Related entities 1. Conotoxin TxIB, : 1 : 1 : 58 entities Detail
Experiments performed 3 experiments Detail
NMR combined restraints 4 contents Detail
Keywords ALPHA-CONOTOXIN, ALPHA-HELIX, AMIDATED C-TERMINUS, DISULFIDE BONDS