400NL pf AK vs a nit

[GutPunch]

I would probably not hesitate to 4 bet this vs just about anyone... but villain seems so nitty... his stats after ~100 hands are 15/10/1 and this is the first time he has 3 bet

$2/$4 NL Hold'em Cash Game, 6 Players
LegoPoker Hand History Converter

MP: $232.40
CO: $276.30
BTN: $396
SB: $429.10
BB: $473
Hero (UTG): $531

Pre-Flop: A[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/spade.gif[/img] dealt to Hero (UTG)
<font color="red">Hero raises to $14</font>, 4 folds, <font color="red">BB raises to $44</font>, Hero??