PALB2: a novel inactivating mutation in a Italian breast cancer family.
Rare germline monoallelic mutations in PALB2 confer a relative risk of breast cancer of 2 to 4-times. To better define the role of PALB2 in breast cancer susceptibility in Italian breast or breast-ovarian cancer families we screened 95 index cases negative for BRCA1/BRCA2 germline mutations. The mutational analysis of the PALB2 gene in a index case of an high risk breast cancer family, has identified a frameshift mutation (c.1517delG) in the exon 4 that leads to the formation of a stop codon, 12 residues downstream of the mutation (Leu451X). The mutation was identified in a woman 52 year old with an infiltrating ductal breast carcinoma and in two of the three sisters without breast cancer. Our results confirmed that PALB2 could be a susceptibility gene for familial breast cancer also in Italian population.
Balia
Cristina
C
Section of Genetic Oncology, Department of Laboratory Medicine, University of Pisa and Santa Chiara University Hospital, Pisa, Italy.
Sensi
Elisa
E
Lombardi
Grazia
G
Roncella
Manuela
M
Bevilacqua
Generoso
G
Caligo
Maria Adelaide
MA
D000328:Adult; D019313:BRCA1 Protein / Q000235:genetics; D024682:BRCA2 Protein / Q000235:genetics; D001943:Breast Neoplasms / Q000235:genetics* / Q000473:pathology; D004252:DNA Mutational Analysis; D004273:DNA, Neoplasm / Q000235:genetics; D000076164:Fanconi Anemia Complementation Group N Protein; D005260:Female; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006801:Humans; D007558:Italy; D019656:Loss of Heterozygosity; D008297:Male; D008875:Middle Aged; D009154:Mutation / Q000235:genetics*; D009687:Nuclear Proteins / Q000235:genetics*; D010051:Ovarian Neoplasms / Q000235:genetics* / Q000473:pathology; D010375:Pedigree; D016133:Polymerase Chain Reaction; D011379:Prognosis; D012333:RNA, Messenger / Q000235:genetics; D011960:Receptors, Estrogen / Q000378:metabolism; D011980:Receptors, Progesterone / Q000378:metabolism; D025521:Tumor Suppressor Proteins / Q000235:genetics*
D019313:BRCA1 Protein; D024682:BRCA2 Protein; D004273:DNA, Neoplasm; D000076164:Fanconi Anemia Complementation Group N Protein; D009687:Nuclear Proteins; C512790:PALB2 protein, human; D012333:RNA, Messenger; D011960:Receptors, Estrogen; D011980:Receptors, Progesterone; D025521:Tumor Suppressor Proteins