Target Information

General Information of This Target
Target ID
BTDT10299
Target Name
Voltage-dependent T-type calcium channel subunit alpha-1G
Target Bioclass
Transporter and channel
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N.A.
Toxin Information Related to This Target
                           Toxin Name Activity Data Type Activity Data Reference
 Toxin Info    Toxin GTx1-15 Inhibition rate
30 %
 [1], [2]
 Toxin Info    Toxin GTx1-15 Inhibition rate
30 %
 [3], [4]
 Toxin Info    Beta/omega-theraphotoxin-Bp1a IC50
53 nM
 [5]
 Toxin Info    Beta/omega-theraphotoxin-Tp1a IC50
53 nM
 [2- 12]
 Toxin Info    Mu/omega-theraphotoxin-Tap1a IC50
81 - 301 nM
 [13]
 Toxin Info    Mu/omega-theraphotoxin-Tap2a IC50
169 - 621 nM
 [13]
 Toxin Info    Beta-theraphotoxin-Cd1a IC50
>30 μM
 [14]
References
Ref 1 Characterization of voltage-dependent calcium channel blocking peptides from the venom of the tarantula Grammostola rosea. Toxicon. 2011 Sep 1;58(3):265-76. doi: 10.1016/j.toxicon.2011.06.006. Epub 2011 Jun 28.
Ref 2 Gating modifier toxins isolated from spider venom: Modulation of voltage-gated sodium channels and the role of lipid membranes. J Biol Chem. 2018 Jun 8;293(23):9041-9052. doi: 10.1074/jbc.RA118.002553. Epub 2018 Apr 27.
Ref 3 Engineering potent and selective analogues of GpTx-1, a tarantula venom peptide antagonist of the Na(V)1.7 sodium channel. J Med Chem. 2015 Mar 12;58(5):2299-314. doi: 10.1021/jm501765v. Epub 2015 Feb 19.
Ref 4 Analgesic Effects of GpTx-1, PF-04856264 and CNV1014802 in a Mouse Model of NaV1.7-Mediated Pain. Toxins (Basel). 2016 Mar 17;8(3):78. doi: 10.3390/toxins8030078.
Ref 5 Mutational analysis of ProTx-I and the novel venom peptide Pe1b provide insight into residues responsible for selective inhibition of the analgesic drug target Na(V)1.7. Biochem Pharmacol. 2020 Nov;181:114080. doi: 10.1016/j.bcp.2020.114080. Epub 2020 Jun 6.
Ref 6 Two tarantula peptides inhibit activation of multiple sodium channels. Biochemistry. 2002 Dec 17;41(50):14734-47. doi: 10.1021/bi026546a.
Ref 7 ProTx-I and ProTx-II: gating modifiers of voltage-gated sodium channels. Toxicon. 2007 Feb;49(2):194-201. doi: 10.1016/j.toxicon.2006.09.014. Epub 2006 Sep 27.
Ref 8 Tarantula toxin ProTx-I differentiates between human T-type voltage-gated Ca2+ Channels Cav3.1 and Cav3.2. J Pharmacol Sci. 2010;112(4):452-8. doi: 10.1254/jphs.09356fp. Epub 2010 Mar 30.
Ref 9 Block of T-type calcium channels by protoxins I and II. Mol Brain. 2014 May 9;7:36. doi: 10.1186/1756-6606-7-36.
Ref 10 High Proteolytic Resistance of Spider-Derived Inhibitor Cystine Knots. Int J Pept. 2015;2015:537508. doi: 10.1155/2015/537508. Epub 2015 Dec 30.
Ref 11 Chemical Synthesis, Proper Folding, Na(v) Channel Selectivity Profile and Analgesic Properties of the Spider Peptide Phlotoxin 1. Toxins (Basel). 2019 Jun 21;11(6):367. doi: 10.3390/toxins11060367.
Ref 12 A tarantula-venom peptide antagonizes the TRPA1 nociceptor ion channel by binding to the S1-S4 gating domain. Curr Biol. 2014 Mar 3;24(5):473-83. doi: 10.1016/j.cub.2014.01.013. Epub 2014 Feb 13.
Ref 13 A spider-venom peptide with multitarget activity on sodium and calcium channels alleviates chronic visceral pain in a model of irritable bowel syndrome. Pain. 2021 Feb 1;162(2):569-581. doi: 10.1097/j.pain.0000000000002041.
Ref 14 Discovery and mode of action of a novel analgesic -toxin from the African spider Ceratogyrus darlingi. PLoS One. 2017 Sep 7;12(9):e0182848. doi: 10.1371/journal.pone.0182848. eCollection 2017.
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