Table 1.
Selected ω-conotoxins targeting different CaV channel subtypes.
Peptide | Conus Specie | Sequence a | Subtype Targeted | Reference |
---|---|---|---|---|
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ω-GVIA | C. geographus | CKSOGSSCSOTSYNCCR-SCNOYTKRCY* (4) | N-type | [16] |
ω-MVIIA | C. magus | CKGKGAKCSRLMYDCCTGSC--RSGKC* (5) | N-type | [17] |
ω-MVIIC | C. magus | CKGKGAPCRKTMYDCCSGSCGRR-GKC* (6) | P/Q/N-type | [18] |
ω-CVIA | C. catus | CKSTGASCRRTSYDCCTGSC--RSGRC* (4) | N-type | [19] |
ω-CVIB | C. catus | CKGKGASCRKTMYDCCRGSC--RSGRC* (6) | N/P/Q-type | [19] |
ω-CVIC | C. catus | CKGKGQSCSKLMYDCCTGSCSRR-GKC* (5) | N/P/Q-type | [19] |
ω-CVID | C. catus | CKSKGAKCSKLMYDCCSGSCSGTVGRC* (4) | N-type | [19] |
ω-TVIA | C. tulipa | CLSOGSSCSOTSYNCCR-SCNOYSRKCR* (4) | N-type | [20] |
ω-TxVII | C. textile | CKQADEPCDVFSLDCCTGIC---LGVCMW* (−3) | L-type | [21,22] |
ω-SVIA | C. striatus | CRSSGSPCGVTS-ICC-GRC--YRGKCT* (4) | poor activity | [8] |
ω-SVIB | C. striatus | CKLKGQSCRKTSYDCCSGSCG-RSGKC* (5) | P/Q-type | [8] |
SO-3 | C. striatus | CKAAGKPCSRIAYNCCTGSC--RSGKC* (5) | N-type | [12] |
Almost all ω-conotoxins are C-terminally amidated (*), each net positive/negative charge is indicated in the braces after the sequence of the corresponding ω-conotoxin. The disulfide bridges motif of ω-conotoxins and its 4 loops (Δ) are also displayed above the sequences. Hydroxyproline residues are denoted by the letter O.