“…This module is reported to be required for incision/unhooking of the crosslink during ICL repair (Knipscheer et al 2009, Klein Douwel et al 2014, Duxin & Walter 2015, and thus functions in the conversion of an ICL to a DSB. The FA core complex includes FA proteins FANCA, B, C, E, F, G, J, L, M and FA-associated proteins, such as FAAP24, FAAP20 and FAAP100 , Bogliolo & Surrallés 2015, Ceccaldi et al 2016. In response to an ICL and/or a stalled replication fork, the FA core complex is somehow activated downstream of the checkpoint kinase ATR-ATRIP through multiple phosphorylation of FANCI (Ishiai et al 2008), FANCM (Singh et al 2013) or FANCA (Collins et al 2009) and monoubiquitinates FANCD2 at lysine 561, which is a critical activating event in the FA pathway (Garcia-Higuera et al 2001, Matsushita et al 2005.…”