NL 50 AK villian shoves turn

[xeanatic]

No reads on villian just sat down at the table.
I am almost sure I am beat here, how can I play this any different and do I have to call a push here because of the odds?

Poker Stars - No Limit Hold'em Cash Game - $0.25/$0.50 Blinds - 6 Players - (LegoPoker Hand History Converter)

SB: $26.60
Hero (BB): $50.00
UTG: $66.35
MP: $29.00
CO: $49.65
BTN: $26.20

Preflop: Hero is dealt A[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/diamond.gif[/img] (6 Players)
2 folds, <font color="red">CO raises to $1.50</font>, 2 folds, <font color="red">Hero raises to $4.50</font>, CO calls $3.00

Flop: ($9.25) 3[img]/images/graemlins/heart.gif[/img] T[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">Hero bets $7.00</font>, CO calls $7.00

Turn: ($23.25) J[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">Hero bets $18.00</font>, <font color="red">CO raises all-in to $38.15</font> Hero ?

Pot Size: $79.40