passages.id: split_8_test_746_passage
passages.type: progene_text
passages.text: Compared with full - length , Skn-1a lacking the N - terminal region demonstrated either increased transactivation ( bovine cytokeratin 6 promoter ) , comparable transactivation ( human papillomavirus type 1a long control region ) , or loss of transactivation ( human papillomavirus type 18 long control region ) .