standard 4 bet AI with AK here?

[xGREGORx]

Neither I nor villian have been caught out of line. ~450 left and 270 make the money. Standard shove with these stacks?

PokerStars No-Limit Hold'em Tourney, Big Blind is t400 (9 handed) Poker Stars Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

SB (t6930)
BB (t17839)
UTG (t6325)
UTG+1 (t4925)
MP1 (t23470)
MP2 (t8355)
MP3 (t2580)
Hero (t15015)
Button (t19938)

Preflop: Hero is CO with A[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/heart.gif[/img].
<font color="#666666">5 folds</font>, <font color="#CC3333">Hero raises to t1200</font>, <font color="#666666">2 folds</font>, <font color="#CC3333">BB raises to t4000</font>, <font color="#CC3333">Hero raises to t14990, ...</font>