General Information of This Peptide
Peptide ID
BTDP008595
Peptide Name
Potassium channel toxin alpha-KTx 32.1
Species
Centruroides margaritatus (Central American bark Scorpion)
Uniprot Name
KA321_CENMA
3D Structure
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2D Sequence
3D Structure
Source
Predict by Alphafold2
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Alphafold Parameters: msa_mode: mmseqs2_uniref_env model_type: auto num_recycles: auto
Sequence
KCRECGNTSPSCYFSGNCVNGKCVCPA
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Sequence Length
27
Mass (Da)
2828
Sequence Removed Signal Peptide
KCRECGNTSPSCYFSGNCVNGKCVCPA
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Disulfide Bond
5-18;12-25
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Kingdom: Metazoa
Phylum: Arthropoda
Class: Arachnida
Order: Scorpiones
Family: Buthidae
Genus: Centruroides
Species: Centruroides margaritatus
Full List of Activity Data of This Peptide Toxin
                        Target Name Activity Data Type Activity Data Concentration Note Reference
 Target Info    Kv1.2 Dissociation constant
0.96 nM
.
Blocker
[1]
 Target Info    Kv1.2 Dissociation constant
0.96 nM
.
Blocker
[1]
 Target Info    Kv1.3 Dissociation constant
1.3 nM
.
Blocker
[1]
 Target Info    Kv1.3 Dissociation constant
1.3 nM
.
Blocker
[1]
 Target Info    Kv1.1 Dissociation constant
400 nM
.
Blocker
[1]
 Target Info    KCa3.1 Inhibition rate .
150 nM
Blocker
[1]
 Target Info    Kv1.5 Inhibition rate .
150 nM
Blocker
[1]
 Target Info    KCa1.1 Inhibition rate .
150 nM
Blocker
[1]
 Target Info    Kv11 Inhibition rate .
150 nM
Blocker
[1]
References
Ref 1 Cm28, a scorpion toxin having a unique primary structure, inhibits KV1.2 and KV1.3 with high affinity. J Gen Physiol. 2022 Aug 1;154(8):e202213146. doi: 10.1085/jgp.202213146. Epub 2022 Jun 14.
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