title: [Association between human papillomavirus (HPV) type 16 infection and E6/E7 gene variant and the cervical lesions in Beijing].
abstract: OBJECTIVE
  To investigate the association between HPV16 infection, E6/E7 variations and the cervical lesions.
  
  
  METHODS
  HPV subtypes were detected by using flow-through hybridization technique, E6/E7 gene was extracted from cervical lesions in 80 patients with HPV16 infection, PCR amplified, cloned into plasmid pMD18-T and sequenced.
  
  
  RESULTS
  HPV 16 was the most common type which accounted for 33.3% (154/463), the HPV16 infection rates increased with the severity of cervical lesions (P < 0.05). Totally in 72 cases the complete E6 and E7 regions were successfully sequenced, the DNA mutation rate of E6/E7 was 88.9% (64/72). A mutation, E6-D32E (T96G) coincided with a specific type of E7 mutation, N29S (A86G). D32E/N29S mutation rate was 38.9% (28/72), the detection rate increased with the severity of cervical lesions (P < 0.05).
  
  
  CONCLUSIONS
  HPV 16 was the most common type in women with cervical lesions in Beijing, D32E/N29S variant associated with the cervical lesions.
authors: Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China.
authors: Ying-jie
authors: YJ
authors: Yang
authors: Jian
authors: J
authors: Zhao
authors: Qin-ping
authors: QP
authors: Liao
mesh_terms: D000328:Adult; D000368:Aged; D002681:China / Q000453:epidemiology; D005260:Female; D005787:Gene Frequency; D005838:Genotype; D054884:Host-Pathogen Interactions; D052162:Human papillomavirus 16 / Q000235:genetics / Q000502:physiology*; D006801:Humans; D008875:Middle Aged; D009154:Mutation; D009856:Oncogene Proteins, Viral / Q000235:genetics; D050725:Papillomavirus E7 Proteins; D030361:Papillomavirus Infections / Q000453:epidemiology / Q000473:pathology / Q000821:virology*; D012097:Repressor Proteins / Q000235:genetics; D012720:Severity of Illness Index; D002577:Uterine Cervical Diseases / Q000453:epidemiology / Q000473:pathology / Q000821:virology*; D002583:Uterine Cervical Neoplasms / Q000453:epidemiology / Q000473:pathology / Q000821:virology*; D055815:Young Adult
chemical_list: C068651:E6 protein, Human papillomavirus type 16; D009856:Oncogene Proteins, Viral; D050725:Papillomavirus E7 Proteins; D012097:Repressor Proteins; C059731:oncogene protein E7, Human papillomavirus type 16