Fanconi anaemia protein family and associated proteins
Approved gene nomenclature | Alias | Area of pathway | Role in ICL |
---|---|---|---|
FANCA | FA core complex | Functions in the AG20 subcomplex with FANCG to promote FA core complex localisation and translocation | |
FANCB | FA core complex | Functions in the BL100 subcomplex with FANCL to improve efficiency of FANCD2/I ubiquitylation and provide structural scaffold | |
FANCC | FA core complex | Component of the CEF subcomplex with FANCE, FANCF to stabilize interactions between FANCD2/I complex and FA core complex and improve ubiquitylation efficiency | |
FANCE | FA core complex | Component of the CEF subcomplex with FANCC, FANCF to stabilize interactions between FANCD2/I complex and FA core complex and improve ubiquitylation efficiency | |
FANCF | FA core complex | Component of the CEF subcomplex with FANCC, FANCE to stabilize interactions between FANCD2/I complex and FA core complex and improve ubiquitylation efficiency | |
FANCG | XRCC9 | FA core complex | Functions in the AG20 subcomplex with FANCA to promote FA core complex localisation and translocation |
FANCL | FA core complex | Component of the BL100 subcomplex and E3 ubiquitin ligase controlling monoubiquitylation of FANCD2/I | |
FANCM | FA core complex | Binds FA core complex to chromatin at ICL sites | |
FANCT | UBE2T | FA core complex | E2 ubiquitin ligase controlling monoubiquitylation of FANCD2/I |
FANCD2 | FANCD2/I complex | Initiates unhooking by nucleases | |
FANCI | FANCD2/I complex | Initiates unhooking by nucleases | |
SLX4 | FANCP | Unhooking | Recruits and regulates nuclease activity during unhooking |
ERCC4 | FANCQ, XPF | Unhooking | Key endonuclease mediating incision of crosslink during unhooking |
MAD2L2 | FANCV, REV7 | TLS | Subunit of the TLS extension polymerase POLζ |
BRIP1 | FANCJ, BACH1 | TLS/HR | Regulates pathway choice between TLS and HR repair |
BRCA2 | FANCD1 | HR | Recruitment of RAD51 to ssDNA |
PALB2 | FANCN | HR | Mediates loading of BRCA1/2 complex on to single stranded DNA |
RAD51C | FANCO | HR | RAD51 nucleoprotein filament assembly |
RAD51 | FANCR | HR | Forms nucleoprotein filaments which mediate template homology search and strand exchange |
BRCA1 | FANCS | HR | CMG helicase eviction, HR pathway promotion and TLS inhibition in complex with FANCJ, complex formation with BRCA2 during HR |
XRCC2 | FANCU | HR | RAD51 nucleoprotein filament assembly |
RFWD3 | FANCW | HR | Mediates RPA dynamics to promote HR |
FAAP10 | MHF2, CENPX, STRA13 | FA core complex | Localization of FANCM to chromatin |
FAAP16 | MHF1, CENPS, APITD1 | FA core complex | Localization of FANCM to chromatin |
FAAP20 | FA core complex | Promotes stability of the AG20 subcomplex | |
FAAP24 | FA core complex | Associates with FANCM to mediate DNA binding of the FA core complex | |
FAAP100 | FA core complex | Functions within the BL100 subcomplex to provide structural scaffold |
Genes are not true FA family members as mutations have not been documented in FA patients, but are members of the family of FA Associated Proteins, and are required for the successful function of the FA pathway. FAAP: Fanconi anaemia associated protein
SJT prepared the majority of the first draft while MJA and SPL contributed further sections. All authors contributed to manuscript revision, read and approved the submitted version.
The authors declare that they have no conflicts of interest.
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SJT, MJA and SPL gratefully acknowledges support from the Melville Trust for the Care and Cure of Cancer.
© The Author(s) 2020.