title: [A novel LMNA gene mutation E82K associated with familial dilated cardiomyopathy].
abstract: OBJECTIVE
  To examine the function of the novel mutation E82K in LMNA gene identified in a Chinese family infected by dilated cardiomyopathy.
  
  
  METHODS
  (1) One Chinese family infected by dilated cardiomyopathy was chosen for the study. Exons 1-12 of the LMNA gene were screened with both PCR method and the cycle sequencing of the PCR products. (2) cDNA of the E82K mutation or wild type of LMNA gene was transfected into HEK293 cells and the apoptosis of the cells was detected after treatment with 0.8 mmol/L H2O2.
  
  
  RESULTS
  (1) A new mutation E82K in LMNA gene was identified in this dilated cardiomyopathy family. (2) Apoptosis was more in the HEK293 cells transfected with E82K mutation than those with empty vector or wild type LMNA gene.
  
  
  CONCLUSIONS
  The missense mutation E82K in LMNA gene changed the polar of the amino acid. It showed a malignant phenotype of severe clinical symptoms, early onset, poor survival prognosis and might be associated with atrioventricular conduction block (II degrees-III degrees), suggesting that the E82K mutation in LMNA gene may be a candidate for nosogenesis of dilated cardiomyopathy.
authors.affiliation: Sino-German Laboratory for Molecular Medicine, Cardiovascular Institute and Fu Wai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China.
authors.forename: Hu
authors.initials: H
authors.lastname: Wang
authors.forename: Wei-yue
authors.initials: WY
authors.lastname: Zheng
authors.forename: Ji-zheng
authors.initials: JZ
authors.lastname: Wang
authors.forename: Xiao-jian
authors.initials: XJ
authors.lastname: Wang
authors.forename: Yi-song
authors.initials: YS
authors.lastname: Zhen
authors.forename: Lei
authors.initials: L
authors.lastname: Song
authors.forename: Yu-bao
authors.initials: YB
authors.lastname: Zou
authors.forename: Ru-tai
authors.initials: RT
authors.lastname: Hui
mesh_terms: D000595:Amino Acid Sequence; D002311:Cardiomyopathy, Dilated / Q000235:genetics*; D002460:Cell Line; D005091:Exons; D006801:Humans; D034904:Lamin Type A / Q000235:genetics*; D008969:Molecular Sequence Data; D020125:Mutation, Missense; D010375:Pedigree
chemical_list: C494847:LMNA protein, human; D034904:Lamin Type A