Phosphorylation of SAMHD1 Thr592 increases C-terminal domain dynamics, tetramer dissociation, and ssDNA binding kinetics
B. Orris, K. W. Huynh, M. Ammirati, S. Han, B. Bolanos, J. Carmody, M. D. Petroski, B. Bosbach, D. J. Shields, J. T. Stivers
This study shows that phosphorylation of SAMHD1 at Thr592 increases tetramer dynamics and ssDNA binding, leading to rapid inactivation of dNTPase activity at stalled replication forks.
bioRxiv · Apr 5, 2022Biochemistry