antisera against several enkephalin peptides were used : leucine-enkephalin ( lenk ) , methionine-enkephalin ( menk ) , methionine-enkephalin-arg6-phe7 ( merf ) , methionine-enkephalin-arg6-gly7-leu8 ( mergl ) , peptide e ( pepe ) , and bam22p .
C0014298
enkephalin
C0014294
leucine-enkephalin