α-latrotoxin   Click here for help

GtoPdb Ligand ID: 5897

Abbreviated name: alpha-LTX
Synonyms: alpha-latrotoxin | alpha-latrotoxin-Lt1a | alpha-LTX-Lt1a
Comment: From the venom gland of the black widow spider (Latrodectus mactans tredecimguttatus). α-latrotoxin has been reported to bind to several human proteins that are likely to contribute to its toxicity [1-4]. It induces massive release of neurotransmitters from vertebrate nerve terminals and endocrine cells.
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Selectivity at GPCRs
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Target Sp. Type Action Value Parameter Concentration range (M) Reference
ADGRL1 Rn Agonist Full agonist 9.6 – 9.8 pKd - 2,4
pKd 9.6 – 9.8 (Kd 2.6x10-10 – 1.6x10-10 M) [2,4]
ADGRL2 Rn Agonist Full agonist 8.9 pKd - 1
pKd 8.9 (Kd 1.4x10-9 M) [1]