GsAF-1

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GsAF-1 blocks voltage-gated sodium channels

GsAF-1 (also termed β-theraphotoxin-Gr1b, GsAF-I) was originally isolated from the venom of Grammostola rosea spider. GsAF-I peptide toxin is reported to block the following voltage-gated sodium channel isoforms: Nav1.1, Nav1.2, Nav1.3, Nav1.4, Nav1.6 and Nav1.7 with respective IC50 values of  0.4, 0.6, 1.3, 0.3, 1.2 and 0.04 µM. In addition, the toxin blocks the hERG1 isoform with an IC50 value of 4.8 µM.

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Description

AA sequence: Tyr-Cys2-Gln-Lys-Trp-Leu-Trp-Thr-Cys9-Asp-Ser-Glu-Arg-Lys-Cys15-Cys16-Glu-Asp-Met-Val-Cys21-Arg-Leu-Trp-Cys25-Lys-Lys-Arg-Leu-NH2
Disulfide bonds: Cys2-Cys16, Cys9-Cys21, and Cys15-Cys25
Length (aa): 29
Formula: C160H245N47O41S7
Molecular Weight:  3707.48 Da
Appearance: White lyophilized solid
Solubility: aqueous buffer
CAS number: not available
Source: Synthetic
Purity rate: > 98%

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ProTx-IIProTx-II-Biotin
Huwentoxin-IHuwentoxin-IVHainantoxin-III
Hainantoxin-IVPhrixotoxin-3GsAF-2

 

Target Promiscuity and Heterogeneous Effects of Tarantula Venom Peptides Affecting Na+ and K+ Ion Channels

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    GsAF-1

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