Ponceau staining - what, why, & how with some practical tips

A Ponceau stain is a quick, easy, and reversible way to check your membrane after protein transfer in a western blot to get a sense of how things went. It helps you see if there are bubbles, whether you loaded even amounts, whether the lanes rain evenly, etc. It’s a total protein stain so it will show you all that’s there. It isn’t very sensitive but it does the trick!

blog: https://bit.ly/ponceau_practical

basic protocol:
run SDS-PAGE
blot (transfer to membrane)
rinse off in ddH2O (that really pure water) → shake ~1 min
pour on enough Ponceau solution to coat the membrane → shake a couple min
pour off Ponceau (can reuse lots of times)
rinse background off with ddH2O
take a picture
wash all the way out with TBST
block
do your antibody probing stuff

more on western blotting: http://bit.ly/westernblotworkflow ; YouTube:    • Western blots: the what's, why's, and whic...   & more practical lab tips and tricks here: https://bit.ly/lab_tricks_page   
            
more about all sorts of things: #365DaysOfScience All (with topics listed) 👉 http://bit.ly/2OllAB0 or search blog: http://thebumblingbiochemist.com