we now show that the chemoattractants n-formyl-methionyl-leucyl-phenylalanine and a split fragment of the fifth component of complement ( c5a ) stimulate an nadph oxidase activity , measured in the 50,000-g particulate fraction from human polymorphonuclear leukocytes ( pmn ) .
C0008013
chemoattractants
C0027229
formyl-methionyl-leucyl-phenylalanine