passages.id: split_4_test_983_passage
passages.type: progene_text
passages.text: The structure of the non - bay region ( 8S,9R,10S,11R)-N(6)-[11-(8,9,10 , 11-tetrahydro-8,9,10-trihydroxybenz[a]anthracenyl)]-2'-de oxyadenosyl adduct at X(6) of 5'-d(CGGACXAGAAG)-3'.5'-d(CTTCTTGTCCG)-3' , incorporating codons 60 , 61 ( underlined ) , and 62 of the human N-ras protooncogene , was determined .