$11 PS, AK facing large reraise

[ChipLeader]

Big Blind is t30 (9 handed)

MP3 (t2070)
CO (t1700)
Button (t650)
SB (t1730)
<font color="Red">BB (t2190)</font>
UTG (t1820)
UTG+1 (t1490)
<font color="Red">Hero (t1550)</font>
MP2 (t300)

Preflop: Hero is MP1 with K[[img]/images/graemlins/spade.gif[/img]], A[[img]/images/graemlins/club.gif[/img]].
<font color="Grey">2 folds</font>, <font color="Red">Hero raises to t100</font>, <font color="Gray">4 folds</font>, SB calls t85, <font color="red">BB raises to t480</font>, Hero ???

Final Pot: t680


I felt like the raise was screaming AA/KK, with some but far less consideration to QQ/AKs, maaaaaybe JJ but doubtful. Only 15 hands into it though and so far villian has been involved with 2 pots, nothing out of the ordinary.

Am I a total nit giving $11 players too much credit on their range here or is this an easy fold?