Autophosphorylation of DNA-PKcs (PRKDC) is required for NHEJ in vivo, especially for endonucleolytic processing of DNA double strand break ends, which makes them suitable for ligation (Chan et al, 2002; Ding et al, 2003). In vivo, PRKDC autophosphorylates at threonine residues T2609, T2638 and T2647, and serine residue S2612 (Douglas et al. 2002).
Douglas, P, Meek, K, Alessi, DR, Goodarzi, AA, Morrice, N, Yu, Y, Lees-Miller, SP, Merkle, D, Sapkota, GP
Story, MD, Chen, BP, Kurimasa, A, Prithivirajsingh, S, Chan, DW, Chen, DJ, Qin, J
Ding, Q, Douglas, P, Meek, K, Ramsden, DA, Woods, T, Lees-Miller, SP, Reddy, YV, Wang, W
protein serine/threonine kinase activity of PRKDC:XRCC5:XRCC6:DNA DSB ends [nucleoplasm]
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