Scaling up to real data. Reads from the venom gland of Bitis arietans were assembled using VTBuilder and annotated using BLAST2GO . (A) Box and whisker plot depicting the length distribution of the constructed transcripts (see Figure 3 for details of whiskers). (B) Transcripts were categorized into four groups; (i) Toxins, (ii) Non-Toxins, (iii) No significant match, and (iv) Bacterial or Viral DNA. (C) The Toxin group in (A) was split into sub categories representing the different protein families present.