Calvin Harris Bassline

I have never been able to figure out the basslines that these top electro/ progressive house producers are using. For example, the drop at 1:04 in Calvin Harris’s song We’ll Be Coming Back, how can I synthesize such a bassline? Thanks!br
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http://www.youtube.com/watch?v=SHO3dE-IDWk

sounds like sidechained synth. How to Set Up EDM-style Sidechain Compression in a Mix - YouTube