Transcription factor. Plays a crucial role in cell survival and RAD51 foci formation in response to methylating DNA damage. Involved in regulating the activity of ATM in the absence of DNA damage. May play a role in stabilizing ATM (By similarity). Binds to the DYNLL1 promoter and activates its transcription. Interacts via its C-terminus with ATM. Interacts with DYNLL; this interaction inhibits ATMIN transcriptional activity and hence may play a role in a feedback loop whereby DYNLL1 inhibits transactivation of its own promoter by ATMIN. ATMIN. Nuclear, in discrete foci during G1 phase. Contaminating sequence. Potential poly-A sequence. Truncated N-terminus.