atm vsProtected against: 1 ATM: Can withstand depths of up to 10m (33ft) Wet weather conditions and splashes: 3 ATM: Can withstand depths of up to 30m (98ft)Although the initial activation of protein kinase cascade is not fully understood, human protein kinases ATM (ataxia-telangiectasia, mutated) and ATR (ATM and Rad3