PokerStars No-Limit Hold'em Tourney, Big Blind is t150 (7 handed) converter

UTG (t2525)
MP1 (t1445)
MP2 (t1505)
Hero (t2530)
Button (t2400)
SB (t1650)
BB (t1445)

Preflop: Hero is CO with A[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">MP1 raises to t1445</font>

Hero?