2.3.1.53 487217 Enzymic synthesis of N-acetyl-L-phenylalanine in Escherichia coli K12 Biochem. J. 124 905-913 1971 Escherichia coli http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?uid=4943352&form=6&db=m