This communication reviews most of the important findings related to venom components
isolated from scorpions and spiders, mainly by means of gene cloning and expression.
Rather than revising results obtained by classical biochemical studies that report structure
and function of venom components, here the emphasis is placed on cloning and
identification of genes present in the venomous glands of these arachnids. Aspects related
to cDNA library construction, specific or random ESTs cloning, transcriptome analysis, high …