Could someone plese help me?! My boss wants to run collagen extracted from the tissue (heart) on SDS gel. I have no idea where to start. How do I extract collagen? What standard do I run?
Thanks,

Maria

I have extracted collagen form calf tendon (collagen rich) previously which involved dissolving the collagen in acetic acid (0.2 M) for approx 2 days at 4 degrees with stirring, you then precipitate the collagen by neutralising with NaOH

not too sure how you would get it purified from the homogenate of heart


a standard 5% separarting gel should be fine with some high range molecular weight markers

intact collagen should run as 3 distinct bands.

you could run some from sigma alongside though the stuff i have bought from them in the past has only been good for throwing in the bin !!

hope this helps