Scientific Contribution
αLTX has helped confirm the vesicular transport hypothesis of transmitter release, establish the requirement of Ca2+ for vesicular exocitosis, and characterize individual transmitter release sites in the central nervous system. It helped identify two families of important neuronal cell-surface receptors.
The mutant form of αLTX, which is called αLTXN4C and does not form pores, has contributed to research. It helped the approach to deciphering the intracellular signaling transduction mechanism stimulated by αLTX. The mutant toxin can also be used to study the nature and properties of intracellular Ca2+ stores implicated in the toxin receptor transduction pathway and their effect on evoked postsynaptic potentials. The mutant toxin can also be an instrument to elucidate the endogenous functions of αLTX.
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