FANCA (Fanconi anaemia group A protein): FANCA is a gene that encodes a protein essential for the Fanconi anaemia (FA) DNA repair pathway, which helps maintain genomic stability. FANCA is involved in activating the FA core complex to recognise and repair DNA interstrand crosslinks (ICLs), harmful lesions that can obstruct DNA replication and transcription. By coordinating the assembly and recruitment of the FA core complex to damaged DNA, FANCA supports proper DNA repair and prevents genome instability.