10 NL: AK OOP vs likely 2p2 TAG

[Vyse]

I'v been at this table for 90-120 minutes, and my image was a bit more aggressive than your standard TAG. Over 283 hands, villain was 16/10, and I am pretty sure he's a 2p2er. To be honest, thinking back, I am not sure why I went all in. What's the standard line here, keeping in mind villain almost certainly has a pretty good hand?

Full Tilt Poker
No Limit Holdem Ring game
Blinds: $0.05/$0.10
5 players
Converter

Stack sizes:
UTG: $10.30
Hero: $22.65
Button: $11
SB: $10.10
BB: $19.65

Pre-flop: (5 players) Hero is CO with K[img]/images/graemlins/diamond.gif[/img] A[img]/images/graemlins/spade.gif[/img]
UTG folds, <font color="#cc0000">Hero raises to $0.4</font>, <font color="#cc0000">Button raises to $1.35</font>, 2 folds, Hero calls.

Flop: 2[img]/images/graemlins/diamond.gif[/img] A[img]/images/graemlins/club.gif[/img] 4[img]/images/graemlins/diamond.gif[/img] ($2.85, 2 players)
Hero checks, <font color="#cc0000">Button bets $1.7</font>, <font color="#cc0000">Hero raises all-in $21.3</font>, Button ???