TCDB is operated by the Saier Lab Bioinformatics Group
TCIDNameDomainKingdom/PhylumProtein(s)
8.B.4.1.1









Conotoxin, 33 aas
Eukaryota
Metazoa, Mollusca
Conotoxin of Conus ventricosus (cone snail) (P83301)
8.B.4.1.2









Conotoxin scaffold VI/VII precursor (CSP), 79 aas
Eukaryota
Metazoa, Mollusca
CSP of Conus pennaceus (AAG60403)
8.B.4.1.3









Conopeptide precursor of 82 aas and 1 TMS.

Eukaryota
Metazoa, Mollusca
Conopeptide precursor of Conus marmoreus (marble cone)
8.B.4.1.4









O-superfamily conotoxin of 73 aas

Eukaryota
Metazoa, Mollusca
Conus toxin of Conus ebraeus
8.B.4.1.5









Huwentoxin-X or Ω-theraphotoxin-Hh1a of 68 aas.  Voltage-gated Ca2+ channel blocker.  The 3-d solution structure is known (Liu et al. 2006).

Eukaryota
Metazoa, Arthropoda
Hwentoxin-X of Haplopelma schmidti (Selenocosmia huwena)
8.B.4.1.6









U4-therophotoxin-Cj1a of 74 aas

Eukaryota
Metazoa, Arthropoda
Therophotoxin of Chilobrachys guangxiensis (Chinese earth tiger tarantula) (Chilobrachys jingzhao)
8.B.4.1.7









δ-conotoxin, TxVIA of 78 aas and 1 TMS.  Binds to the extracellular sides of voltage-gated sodium channels (Nav) and inhibits the inactivation process. Binding of this toxin is calcium-dependent but not voltage-dependent.  It is important in mollusks for the paralysis of prey.  The 3-d solution structure is known (Kohno et al. 2002).

Eukaryota
Metazoa, Mollusca
Conotoxin of Conus textile (Cloth-of-gold cone)
8.B.4.1.8









Epsilon-conotoxin, TxVA, of 67 aas.  ε-Conotoxins act at presynaptic membranes, blocking calcium channels or G protein-coupled receptors. They causes hyperactivity upon intracranial injection into mice and dorsal fins drooping in fish.

Eukaryota
Metazoa, Mollusca
ε-Conotoxin of Conus textile (Cloth-of-gold cone)
8.B.4.1.9









Mu (μ)-conotoxin GVIIJ of 82 aas and 1 TMS.  Mu-conotoxins block voltage-gated sodium channels (Nav). This toxin (GVIIJ (SSG)) blocks Nav1.1/SCN1A (Kd=11 nM), Nav1.2/SCN2A (Kd=11 nM), Nav1.3/SCN3A (Kd=15 nM), Nav1.4/SCN4A (Kd=4.7 nM), Nav1.6/SCN8A (Kd=360 nM) and Nav1.7/SCN9A (Kd=41 nM) (Gajewiak et al. 2014; Zhang et al. 2015). Coexpression of subunits beta-2 or beta-4 (but not beta-1 or beta-3) protects rNav1.1-1.7 against block by the toxin (Wilson et al. 2015).

Eukaryota
Metazoa, Mollusca
Mu-conotoxin GVIIJ of Conus geographus (Geography cone) (Nubecula geographus)
8.B.4.1.10









Conotoxin of 80 aas and 1 TMS.

Eukaryota
Metazoa, Mollusca
Cx of Conus praecellens
8.B.4.1.11









Omega-conotoxin Bu8 of 50 aas and 0 TMSs. Knottin; Neurotoxin; Secreted; Voltage-gated calcium channel impairing toxin.

Eukaryota
Metazoa, Mollusca
BuB toxin of Conus bullatus
8.B.4.1.12









Delta conotoxin AtVIA, partial, of 30 aas and one TMS.

Eukaryota
Metazoa, Mollusca
δ-conotoxin, AtVIA of Conus ateralbus
8.B.4.1.13









Conotoxin Superfamily T of 60 aas and 1 TMS

 

Eukaryota
Metazoa, Mollusca
Conotoxin of Conus episcopatus
8.B.4.1.14









T-2 (chi -or lambda-)conotoxin MrIA precursor (61aas) (inhibitor of the human norepinephrine transporter) (Lovelace et al., 2006). These toxins have a unique disulfide arrangement and folding pattern, and they contain 4-trans hydroxyproline (Balaji et al. 2000).

Eukaryota
Metazoa, Mollusca
Conotoxin MrIA of Conus marmoreus (P58808)
8.B.4.1.15









kappa-conotoxin PVIIA (Fin-popping peptide) of 72 aas. The three-dimensional structure has been solved. It is a  potassium channel-blocking toxin from cone snails (Savarin et al. 1998). It blocks the activities of shaker K+ channels (Shon et al. 1998).

Eukaryota
Metazoa, Mollusca
kappa-conotoxin PVIIA of Conus purpurascens
8.B.4.3.1









Conotoxin Ca5.1 precursor (71 aas and 2 TMSs) (Peng et al., 2007)

Eukaryota
Metazoa, Mollusca
Conotoxin Ca5.1 precursor of Conus caracteristicus (P0C666)
8.B.4.3.2









Conotoxin of 60 aas and 1 TMS.

Eukaryota
Metazoa, Mollusca
Conotoxin of Conus andremenezi
8.B.4.3.3









Conotoxin VnMLCL-03 of 65 aas and 2 TMSs.

Eukaryota
Metazoa, Mollusca
Conotoxin of Conus ventricosu
8.B.4.3.4









Conotoxin T M1.17 of 71 aas and 1 TM

Eukaryota
Metazoa, Mollusca
Conotoxin of Conus magus