text: Yo, listen up, I got a story to tell
  'Bout the EUG1 gene, yeah, it rings a bell
  Saccharomyces cerevisiae, that's the strain
  A protein in the ER, soluble, no pain
  
  It's got homology to the mammalian PDI
  And the yeast PDI1 gene, oh my oh my
  Deletion or overexpression, it's all cool
  No growth defects, don't be no fool
  
  When proteins accumulate, native or not
  EUG1 mRNA and protein hit the spot
  Levels shoot up, response is real strong
  In the ER, they're where they belong
  
  Overexpression of EUG1, it's the key
  Yeast cells grow, don't need PDI1, you see
  But when PDI1's depleted, trouble brews
  Glycoprotein in ER, it accrues
  
  EUG1 can't fully bring relief
  Though it tries hard to provide some belief
  PDI1 and EUG1, they go hand in hand
  Nascent polypeptides, they understand
  
  In the yeast's ER, they're the ones
  Functionally related, like daughters and sons
  Interacting with proteins, that's their role
  PDI1 and EUG1, in the ER, they control