sentences:  Locus of enterocyte effacement
  
  The locus of enterocyte effacement (LEE) is a moderately conserved pathogenicity island consisting of 35,000 base pairs in the bacteria "Escherichia coli" genome.The LEE encodes the Type III secretion system and associated chaperones and effector proteins responsible for attaching and effacing (AE) lesions in the large intestine.