text: Yo, listen up, I got a story to tell,
  'Bout lithium ion toxicity, it ain't going well.
  Escherichia coli cells, they feel the pain,
  When Li+ concentration's high, it's a toxic chain.
  
  See, Li+ gets kicked out by a Na+(Li+)/H+ antiporter,
  Detoxification game, they're the supporter.
  Two antiporters in E.coli, let me break it down,
  NhaA system and NhaB system, hold the crown.
  
  We studied their properties, had to find the facts,
  How these systems fight against Li+'s attacks.
  Both systems had similar Li+ affinity,
  But NhaA's Vmax value showed some disparity.
  
  NhaA system's got the power, it's 12 times stronger,
  Transporting Li+ faster, can't wait no longer.
  Wild type cells couldn't handle 0.7 M LiCl,
  But a mutant without NhaB, it could still chill.
  
  In the presence of 0.6 M LiCl, they survived,
  Wild type and NhaB mutant, they both thrived.
  But the NhaA mutant, it couldn't keep the pace,
  Couldn't grow, couldn't survive in that toxic space.
  
  The second mutant found its sweet spot,
  Grew fine with 0.1 to 0.2 M LiCl, hit the jackpot.
  But when both NhaA and NhaB were gone,
  No chance to grow, couldn't survive for long.
  
  So that's the story of E.coli and Li+,
  Toxicity and detoxification, oh my, oh my.
  These antiporters play a crucial role,
  In the battle against Li+, they take control.