Fig. 2 Molecular complex between the SARS-CoV-2 spike protein trimer and ATM. (a) Detailed view of ATM bound to the NTD tip of SARS-CoV-2 spike protein chain A, shown at two distinct magnifications and orientations (left and right panels). Note that the NTD tip displays a complementary landing surface for ATM (highlighted in red). The protein stretch 134-138, which contains the QFN triad, is highlighted in green. (b) The trimeric structure of the SARS-CoV-2 spike is represented in surface rendition with subunit (protein chain A, B and C) in cyan, yellow and purple, respectively. AMT (in red) is bound to the tip of the NTD domain of the A subunit (left panel). The ribbon structure of the cyan (chain A) subunit is shown in the right panel. (c) Above views of the spike-ATM complex. Note that the B and C subunits also display a fully accessible ATM binding site (red asterisk).