Objective:To investigate E5 gene of human papilloma virus(HPV)16in clinical cervicitis,CIN I,CIN II,CIN III and cervical cancer patients;to determine whether HPV16E5 can be used as early diagnosis target for clinical cervical cancer;to further study the mechanism of carcinogenesis of HPV16.Methods:Sixty-one cases were selected from HPV16 positive specimens which were divided into 5groups according to the pathological diagnosis(cervicitis group,CIN I,CIN II,CIN III and cervical cancer group).HPV16E5 DNA was ...