text: Yo, check it, let me break it down for you real quick,
  Talkin' 'bout Helodermin, a peptide, you gotta be slick.
  It's part of the VIP fam, amino acid-residue, you see,
  Pulled straight from Heloderma suspectum's venom, believe me.
  
  In the lab, we did a study, rat pancreatic acini in sight,
  Examined helodermin's binding, amylase secretion's might.
  This peptide, it got the power to make cAMP go wild,
  Dose-dependent, just like VIP, it's got that style.
  
  Helodermin, it boosts amylase secretion, that's for sure,
  Similar efficacy to VIP, but potency a little more pure.
  Now, add 0.5 mM 3-isobutyl-1-methylxanthine to the mix,
  Increases helodermin's action, but efficacy stays fixed.
  
  When it comes to binding, VIP and helodermin, they be tight,
  Secretin ain't too far, but it's not in the same light.
  VIP-receptors, they show love to VIP and helodermin too,
  But secretin-receptors prefer secretin, that's the clue.
  
  So, helodermin, it stimulates amylase, that's the deal,
  Through VIP-preferring receptors, it's got that appeal.
  Intracellular cAMP production, it's all part of the plan,
  But the postreceptor mechanism, ain't the same as VIP, understand?