General Information of This Target
Target ID
BTDT10297
Target Name
Voltage-dependent P/Q-type calcium channel subunit alpha-1A
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    Omega-theraphotoxin-Pm1a Inhibition rate . [1], [2]
 Toxin Info    Omega toxin Ap5 Inhibition rate
22.08 %
[3]
 Toxin Info    Omega-conotoxin Bu8 Inhibition rate
27.36 %
[4], [5]
 Toxin Info    Omega toxin Ap5 Inhibition rate
28.06 %
[3]
 Toxin Info    MVIIC IC50
0.6 nM
[6- 12]
 Toxin Info    Omega-filistatoxin-Kh1a IC50
4.3 nM
[13]
 Toxin Info    Omega-conotoxin CVIB IC50
11 nM
[8- 14]
 Toxin Info    Omega-conotoxin GVIA IC50
1.05 μM
[8- 28]
References
Ref 1 Venom components from Citharischius crawshayi spider (Family Theraphosidae): exploring transcriptome, venomics, and function. Cell Mol Life Sci. 2010 Aug;67(16):2799-813. doi: 10.1007/s00018-010-0359-x. Epub 2010 Apr 6.
Ref 2 Isolation, synthesis and characterization of -TRTX-Cc1a, a novel tarantula venom peptide that selectively targets L-type Cav channels. Biochem Pharmacol. 2014 May 15;89(2):276-86. doi: 10.1016/j.bcp.2014.02.008. Epub 2014 Feb 19.
Ref 3 Purification and characterization of peptides Ap2, Ap3 and Ap5 (-toxins) from the venom of the Brazilian tarantula Acanthoscurria paulensis. Peptides. 2021 Nov;145:170622. doi: 10.1016/j.peptides.2021.170622. Epub 2021 Aug 5.
Ref 4 Characterization of the Conus bullatus genome and its venom-duct transcriptome. BMC Genomics. 2011 Jan 25;12:60. doi: 10.1186/1471-2164-12-60.
Ref 5 A novel -conotoxin Bu8 inhibiting N-type voltage-gated calcium channels displays potent analgesic activity. Acta Pharm Sin B. 2021 Sep;11(9):2685-2693. doi: 10.1016/j.apsb.2021.03.001. Epub 2021 Mar 18.
Ref 6 A new Conus peptide ligand for mammalian presynaptic Ca2+ channels. Neuron. 1992 Jul;9(1):69-77. doi: 10.1016/0896-6273(92)90221-x.
Ref 7 Tyr13 is essential for the binding of omega-conotoxin MVIIC to the P/Q-type calcium channel. Biochem Biophys Res Commun. 1995 Sep 14;214(2):305-9. doi: 10.1006/bbrc.1995.2288.
Ref 8 Novel omega-conotoxins from Conus catus discriminate among neuronal calcium channel subtypes. J Biol Chem. 2000 Nov 10;275(45):35335-44. doi: 10.1074/jbc.M002252200.
Ref 9 Role of hydroxyprolines in the in vitro oxidative folding and biological activity of conotoxins. Biochemistry. 2008 Feb 12;47(6):1741-51. doi: 10.1021/bi701934m. Epub 2008 Jan 12.
Ref 10 An improved diagnostic assay for Lambert-Eaton myasthenic syndrome. J Neurol Neurosurg Psychiatry. 1995 Jan;58(1):85-7. doi: 10.1136/jnnp.58.1.85.
Ref 11 Solution structure of omega-conotoxin MVIIC, a high affinity ligand of P-type calcium channels, using 1H NMR spectroscopy and complete relaxation matrix analysis. J Mol Biol. 1995 Apr 21;248(1):106-24. doi: 10.1006/jmbi.1995.0205.
Ref 12 Structure-activity relationships of omega-conotoxins MVIIA, MVIIC and 14 loop splice hybrids at N and P/Q-type calcium channels. J Mol Biol. 1999 Jun 25;289(5):1405-21. doi: 10.1006/jmbi.1999.2817.
Ref 13 Inhibition of neuronal calcium channels by a novel peptide spider toxin, DW13.3. Mol Pharmacol. 1998 Aug;54(2):407-18. doi: 10.1124/mol.54.2.407.
Ref 14 Analgesic (omega)-conotoxins CVIE and CVIF selectively and voltage-dependently block recombinant and native N-type calcium channels. Mol Pharmacol. 2010 Feb;77(2):139-48. doi: 10.1124/mol.109.058834. Epub 2009 Nov 5.
Ref 15 Precursor structure of omega-conotoxin GVIA determined from a cDNA clone. Toxicon. 1992 Sep;30(9):1111-6. doi: 10.1016/0041-0101(92)90056-b.
Ref 16 Purification and sequence of a presynaptic peptide toxin from Conus geographus venom. Biochemistry. 1984 Oct 23;23(22):5087-90. doi: 10.1021/bi00317a001.
Ref 17 Peptide neurotoxins from fish-hunting cone snails. Science. 1985 Dec 20;230(4732):1338-43. doi: 10.1126/science.4071055.
Ref 18 Synthesis and secondary-structure determination of omega-conotoxin GVIA: a 27-peptide with three intramolecular disulfide bonds. Biopolymers. 1986;25 Suppl:S61-8.
Ref 19 Role of basic residues for the binding of omega-conotoxin GVIA to N-type calcium channels. Biochem Biophys Res Commun. 1993 Aug 16;194(3):1292-6. doi: 10.1006/bbrc.1993.1964.
Ref 20 Hydroxyl group of Tyr13 is essential for the activity of omega-conotoxin GVIA, a peptide toxin for N-type calcium channel. J Biol Chem. 1994 Sep 30;269(39):23876-8.
Ref 21 Structure-function relationships of omega-conotoxin GVIA. Synthesis, structure, calcium channel binding, and functional assay of alanine-substituted analogues. J Biol Chem. 1997 May 2;272(18):12014-23. doi: 10.1074/jbc.272.18.12014.
Ref 22 A new omega-conotoxin that targets N-type voltage-sensitive calcium channels with unusual specificity. Biochemistry. 2001 Dec 4;40(48):14567-75. doi: 10.1021/bi002871r.
Ref 23 Three-dimensional structure of omega-conotoxin GVIA determined by 1H NMR. Biochem Biophys Res Commun. 1993 May 14;192(3):1238-44. doi: 10.1006/bbrc.1993.1549.
Ref 24 Solution structure of omega-conotoxin GVIA using 2-D NMR spectroscopy and relaxation matrix analysis. Biochemistry. 1993 Jul 27;32(29):7396-405. doi: 10.1021/bi00080a009.
Ref 25 Three-dimensional structure in solution of the calcium channel blocker omega-conotoxin. J Mol Biol. 1993 Nov 20;234(2):405-20. doi: 10.1006/jmbi.1993.1595.
Ref 26 Solution structure of the calcium channel antagonist omega-conotoxin GVIA. Protein Sci. 1993 Oct;2(10):1591-603. doi: 10.1002/pro.5560021005.
Ref 27 Refined solution structure of omega-conotoxin GVIA: implications for calcium channel binding. J Pept Res. 1999 Mar;53(3):343-51. doi: 10.1034/j.1399-3011.1999.00040.x.
Ref 28 Structure-activity relationships of omega-conotoxins at N-type voltage-sensitive calcium channels. J Mol Recognit. 2000 Mar-Apr;13(2):55-70. doi: 10.1002/(SICI)1099-1352(200003/04)13:2<55::AID-JMR488>3.0.CO;2-O.
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