title: Mutation analysis of the breast cancer gene BRCA1 among breast cancer Jordanian females.
abstract: OBJECTIVE
  To screen mutations of the tumor suppressor breast cancer susceptibility gene 1 (BRCA1) within 3 exons among Jordanian breast cancer females.
  
  
  METHODS
  A total of 135 Jordanian breast cancer females were genetically analyzed by denaturing gradient electrophoresis (DGGE) for mutation detection in 3 BRCA1 exons (2, 11 and 20) between 2000-2002 in Al-Basheer Hospital, Amman, Jordan.
  
  
  RESULTS
  Of the studied patients 50 had a family history of breast cancer, 28 had a family history of cancer other than breast cancer, and 57 had no family history of any cancer. Five germline mutations were detected among breast cancer females with a family history of breast cancers (one in exon 2 and 4 mutations in exon 11). Another germline mutation (within exon 11) was detected among breast cancer females with family history of cancer other than breast cancer, and no mutation was detected among breast cancer females with no family history of any cancer or among normal control females.
  
  
  CONCLUSIONS
  Screening mutations within exon 2, exon 11 and exon 20 showed that most screened mutations were within BRCA1 exon 11 among breast cancer Jordanian families with a family history of breast cancer.
authors.affiliation: Medical Laboratory Department, Faculty of Allied Health Sciences, Hashemite University, Zarqa, Jordan. manar@hu.edu.jo
authors.forename: Manar F
authors.initials: MF
authors.lastname: Atoum
authors.forename: Sameer A
authors.initials: SA
authors.lastname: Al-Kayed
mesh_terms: D000328:Adult; D001483:Base Sequence; D001943:Breast Neoplasms / Q000453:epidemiology / Q000235:genetics*; D016022:Case-Control Studies; D004252:DNA Mutational Analysis; D005260:Female; D019398:Genes, BRCA1; D020022:Genetic Predisposition to Disease / Q000453:epidemiology*; D005820:Genetic Testing / Q000379:methods; D006579:Heterozygote; D006801:Humans; D015994:Incidence; D007597:Jordan / Q000453:epidemiology; D008875:Middle Aged; D008969:Molecular Sequence Data; D009154:Mutation; D010375:Pedigree; D016133:Polymerase Chain Reaction / Q000379:methods; D011336:Probability; D012016:Reference Values