passages.id: split_4_test_1210_passage
passages.type: progene_text
passages.text: Recently , we used an antisense strategy to reduce arrestin levels in HEK293 cells and characterize the role of arrestins on endogenous G(s)-coupled receptors ( Mundell , S. J. , Loudon , R. B. , and Benovic , J. L. ( 1999 ) Biochemistry 38 , 8723 - 8732 ) .