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- PDB-1wqc: An unusual fold for potassium channel blockers : NMR structure of... -

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Basic information

Entry
Database: PDB / ID: 1wqc
TitleAn unusual fold for potassium channel blockers : NMR structure of three toxins from the scorpion Opisthacanthus madagascariensis
ComponentsOmTx1
KeywordsTOXIN
Function / homologypotassium channel regulator activity / toxin activity / extracellular region / Potassium channel toxin kappa-KTx 2.2
Function and homology information
Biological speciesOpisthacanthus madagascariensis (scorpion)
MethodSOLUTION NMR
AuthorsChagot, B. / Pimentel, C. / Dai, L. / Pil, J. / Tytgat, J. / Nakajima, T. / Corzo, G. / Darbon, H. / Ferrat, G.
CitationJournal: Biochem.J. / Year: 2005
Title: An unusual fold for potassium channel blockers: NMR structure of three toxins from the scorpion Opisthacanthus madagascariensis
Authors: Chagot, B. / Pimentel, C. / Dai, L. / Pil, J. / Tytgat, J. / Nakajima, T. / Corzo, G. / Darbon, H. / Ferrat, G.
History
DepositionSep 27, 2004Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jan 18, 2005Provider: repository / Type: Initial release
Revision 1.1Apr 30, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Mar 2, 2022Group: Data collection / Database references / Derived calculations
Category: database_2 / pdbx_nmr_software ...database_2 / pdbx_nmr_software / pdbx_struct_assembly / pdbx_struct_oper_list
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_nmr_software.name

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: OmTx1


Theoretical massNumber of molelcules
Total (without water)2,9921
Polymers2,9921
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
NMR ensembles
DataCriteria
Number of conformers (submitted / calculated)30 / -
Representative

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Components

#1: Protein/peptide OmTx1


Mass: 2992.340 Da / Num. of mol.: 1 / Source method: isolated from a natural source
Source: (natural) Opisthacanthus madagascariensis (scorpion)
References: UniProt: P0C1Z3*PLUS

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Experimental details

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Experiment

ExperimentMethod: SOLUTION NMR
NMR experiment
Conditions-IDExperiment-IDSolution-IDType
111DQF-COSY
1212D TOCSY
1312D NOESY

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Sample preparation

Sample conditionspH: 3 / Temperature: 283 K

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NMR measurement

RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M
Radiation wavelengthRelative weight: 1
NMR spectrometerType: Bruker DMX / Manufacturer: Bruker / Model: DMX / Field strength: 500 MHz

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Processing

NMR software
NameVersionClassification
XwinNMR2.1collection
XEASY1.3.13data analysis
DIANA2.8structure solution
CNS1.1refinement
NMR ensembleConformers submitted total number: 30

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