decay-accelerating factor in a sentence

1. An array of regulatory proteins have been found , which inhibit the formation of central enzymes involved in early stages of the complement activation pathway . these include membrane cofactor protein ( mcp cd46 ) , decay - accelerating factor protein ( daf cd5 5 ) , complement receptor 1 ( cr1 , cd35 ) , as well as cd59 , which inhibits formation of the membrane attack complex during later stages . these regulatory factors are widely expressed and abundant on many cells , and in fluids of reproductive system
2. It's difficult to find decay-accelerating factor in a sentence.