BMRB Entry 6037
Chem Shift validation: AVS_full
BMRB Entry DOI: doi:10.13018/BMR6037
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Title: Solution Structure of BmKX, a novel potassium channel blocker from the Chinese Scorpion Buthus martensi Karsch PubMed: 15683869
Deposition date: 2003-12-19 Original release date: 2005-02-21
Authors: Cai, Z.; Wu, J.; Xu, Y.; Wang, C.; Chi, C.-W.; Shi, Y.
Citation: Wang, C.; Cai, Z.; Lu, W.; Wu, J.; Xu, Y.; Shi, Y.; Chi, C.-W.. "A novel short-chain peptide BmKX from the chinese scorpion Buthus martensi karsch, sequencing, gene cloning and structure determination" Toxicon 45, 309-319 (2005).
Assembly members:
BmKX, polymer, 31 residues, Formula weight is not available
Natural source: Common Name: Chinese scorpion Taxonomy ID: 34649 Superkingdom: Eukaryota Kingdom: Metazoa Genus/species: Mesobuthus martensii
Experimental source: Production method: chemical synthesis
Entity Sequences (FASTA):
BmKX: TPYPVNCKTDRDCVMCGLGI
SCKNGYCQGCT
- assigned_chemical_shifts
| Data type | Count |
| 1H chemical shifts | 183 |
Additional metadata:
Assembly:
| Entity Assembly ID | Entity Name | Entity ID |
|---|---|---|
| 1 | potassium channel toxin KX | 1 |
Entities:
Entity 1, potassium channel toxin KX 31 residues - Formula weight is not available
| 1 | THR | PRO | TYR | PRO | VAL | ASN | CYS | LYS | THR | ASP | ||||
| 2 | ARG | ASP | CYS | VAL | MET | CYS | GLY | LEU | GLY | ILE | ||||
| 3 | SER | CYS | LYS | ASN | GLY | TYR | CYS | GLN | GLY | CYS | ||||
| 4 | THR |
Samples:
sample_1: BmKX 3 mM; Phosphate buffer 50 mM; H2O 90%; D2O 10%
sample_2: BmKX 3 mM; Phosphate buffer 50 mM; D2O 99.96%
sample_cond_1: ionic strength: 50 mM; pH: 5.0; pressure: 1 atm; temperature: 300 K
Experiments:
| Name | Sample | Sample state | Sample conditions |
|---|---|---|---|
| DQF-COSY | not available | not available | not available |
| 2D TOCSY | not available | not available | not available |
| 2D NOESY | not available | not available | not available |
| E-COSY | not available | not available | not available |
Software:
XEasy v3.2 - data analysis
DIANA v2.8 - data analysis
CNS v1.0 - structure solution, refinement
NMR spectrometers:
- Bruker DMX 500 MHz