AKs too weak?

[J-Lo]

PokerStars No-Limit Hold'em Tourney, Big Blind is t200 (5 handed) converter

BB (t1090)
Hero (t4730)
MP (t1725)
Button (t4465)
SB (t1490)

Preflop: Hero is UTG with A[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/diamond.gif[/img].
<font color="#CC3333">Hero raises to t625</font>, <font color="#666666">1 fold</font>, <font color="#CC3333">Button raises to t1625</font>, <font color="#666666">2 folds</font>, Hero folds.

Final Pot: t2325

I had been pretty aggressive thus far.... no read on oponent.. do i call and hope for a good flop? This is in a $25+2...

results below

<font color="white">Of course he turned over AQ, but that didn't matter, i went on to win the tourney </font>