Fanconi anemia, complementation group oOMIM Phenotype
Preferred Label : Fanconi anemia, complementation group o;
Symbol : FANCO;
CISMeF acronym : FANCO;
Type : Phenotype, molecular basis known;
Description : Fanconi anemia (FA) is a clinically and genetically heterogeneous disorder that causes
genomic instability. Characteristic clinical features include developmental abnormalities
in major organ systems, early-onset bone marrow failure, and a high predisposition
to cancer. The cellular hallmark of FA is hypersensitivity to DNA crosslinking agents
and high frequency of chromosomal aberrations pointing to a defect in DNA repair (summary
by Deakyne and Mazin, 2011). For additional general information and a discussion of
genetic heterogeneity of Fanconi anemia, see 227650.;
Inheritance : Autosomal recessive;
Molecular basis : Caused by mutation in the C homolog of the S. cerevisiae RAD51 gene (RAD51C, 602774.0001);
Laboratory abnormalities : Increased chromosomal breaks in response to cross-linking agents and ionizing radiation; Defect in DNA repair; Cellular arrest at G2 of the cell cycle;