three independent experimental approaches support the hypothesis that rifampin competes for receptors on polymorphonuclear leukocytes ( pmls ) with small peptide chemoattractants , e.g. , n-formylmethionylleucylphenylalanine ( fmlp ) , but not with serum-derived chemoattractants ( c5a ) .
C0027229
formylmethionylleucylphenylalanine
C0008013
chemoattractants