OOP with AK facing a 3bet god I hate this spot!!

[Worm75]

Button is running 17/14/6 over 90 hands haven't really had any mix-ups until this hand. Original raiser is the reason we are at this table running 77/13/1.3.

OOP here do we put in the third raise, or play it like the bitch that I am and smooth call. Looking over the HH last night I got the feeling that this may have just been an isolation play, but not sure how to play AK OOP here. Comments on all streets appreciated.
Full Tilt Poker
No Limit Holdem Ring game
Blinds: $0.05/$0.10
6 players
Converter

Stack sizes:
UTG: $4.50
UTG+1: $10
CO: $9.70
Button: $18.35
hero: $10.25
BB: $19.20

Pre-flop: (6 players) hero is SB with A[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/spade.gif[/img]
UTG calls, <font color="#cc0000">UTG+1 raises to $0.35</font>, CO calls, <font color="#cc0000">Button raises to $1.65</font>, hero calls, 4 folds.

Flop: T[img]/images/graemlins/diamond.gif[/img] 4[img]/images/graemlins/diamond.gif[/img] 7[img]/images/graemlins/spade.gif[/img] ($4.2, 2 players)
hero checks, <font color="#cc0000">Button bets $3</font>, hero folds.
Uncalled bets: $3 returned to Button.

Results:
Final pot: $4.2