[teddyFBI]

Your line looks fine to me -- except bet the river next time.

AK whiffing on the flop is not an auto-bet as many people here wold have you believe. When might you think about check/calling flop? With a multi-way pot, with many conceivable draws, and an aggressive player to act behind you -- like in this case. See the turn cheaply.
People wonder why they get stuck at 1BB/100 -- want to know where your other BB/100s are? Buried in hands like this.
Fold turn UI if you face a bet.