$1 AKo from BB, call or push?

[She]

5 Handed. Blinds 50/100.

She is BB with 1440.
UTG with 1640.
CO with 5155.
BTN with 2050.
SB with 4715.

She: A[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/club.gif[/img]

Pre-flop:
2 folds. BTN raises to 300. 1 folds. She goes all-in for 1440.

Just wondering if anyone would have called here... Also about where would my chipstack have to be to make this a toss-up between calling and pushing? (obv. if calling would leave me w/ <10bb, anything else?)

Also, would you play this any different if it were suited?

[bluefeet]

nh