General Information of This Peptide
Peptide ID
BTDP008471
Peptide Name
Potassium channel toxin alpha-KTx 18.1
Symonym
Toxin Tc32; Toxin To32
Species
Tityus obscurus (Amazonian scorpion) (Tityus cambridgei)
Uniprot Name
KA181_TITOB
Alphafold ID
P60211
3D Structure
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2D Sequence
3D Structure
Source
RSCB PDB: 2JP6
Sequence
MRFTGIILILISMTLIDSFFEMKVEATGPQTTCQAAMCEAGCKGLGKSMESCQGDTCKCK
A
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Sequence Length
61
Mass (Da)
6530
Signal Sequence
MRFTGIILILISMTLIDSFFEMKVEA
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Sequence Removed Signal Peptide
TGPQTTCQAAMCEAGCKGLGKSMESCQGDTCKCKA
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Disulfide Bond
33-52;38-57;42-59
PDB ID
2JP6
        Click to Show/Hide the Complete Species Lineage
Kingdom: Metazoa
Phylum: Arthropoda
Class: Arachnida
Order: Scorpiones
Family: Buthidae
Genus: Tityus
Species: Tityus obscurus
Full List of Activity Data of This Peptide Toxin
                        Target Name Activity Data Type Activity Data Concentration Note Reference
 Target Info    Kv1.3 Dissociation constant
10 nM
.
Blocker
[2]
 Target Info    Shaker Dissociation constant
4.7 μM
.
Blocker
[2]
References
Ref 1 Proteomic endorsed transcriptomic profiles of venom glands from Tityus obscurus and T. serrulatus scorpions. PLoS One. 2018 Mar 21;13(3):e0193739. doi: 10.1371/journal.pone.0193739. eCollection 2018.
Ref 2 Two novel toxins from the Amazonian scorpion Tityus cambridgei that block Kv1.3 and Shaker B K(+)-channels with distinctly different affinities. Biochim Biophys Acta. 2002 Dec 16;1601(2):123-31. doi: 10.1016/s1570-9639(02)00458-2.
Ref 3 Proteomics of the venom from the Amazonian scorpion Tityus cambridgei and the role of prolines on mass spectrometry analysis of toxins. J Chromatogr B Analyt Technol Biomed Life Sci. 2004 Apr 15;803(1):55-66. doi: 10.1016/j.jchromb.2003.09.002.
Ref 4 Looking over toxin-K(+) channel interactions. Clues from the structural and functional characterization of -KTx toxin Tc32, a Kv1.3 channel blocker. Biochemistry. 2012 Mar 6;51(9):1885-94. doi: 10.1021/bi201713z. Epub 2012 Feb 27.
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