Surprisingly, in 2013, inactivating mutations in ERCC4/XP-F, whoseloss of function was previously associated with the skin cancer predispositionsyndrome Xeroderma pigmentosum complementation group F, were also identified to beassociated with an FA-like phenotype by whole-exome and Sanger sequencing of the DNAof unclassified FA individuals (Bogliolo etal., 2013). Here, ERCC4 is linked to xeroderma pigmentosum.