The bass starts at the 1:00 mark.

The bass line begins as James Murphy finishes singing a verse, and finishes just as he 
the next verse.

G|---------------------------------|
D|------7---7---7---7---7---7---7--|
A|---5---55--55--55--55--55--55----|
E|---------------------------------|

This one line is repeated throughout the whole song.

I've listened to this over and over and the vocal queues are all I can come up with as 
when the bass begins and ends.