the active site of lecithin : cholesterol acyltransferase was identified as serine on position 181 according to its homology with other serine-type esterases which have a common structure of glycine-variable amino acid-active serine-variable amino acid-glycine ( gly-x-ser-x-gly ) with the variable amino acids disrupting the homology .
C0017890
gly
C0002520
amino