Can anyone offer any guidance/experience with tandem-affinity purification tags for purification of endogenous low-abundance proteins and complexes from C. elegans?
I am aware of:
- original TAP-tag (protein A - TEV - Calmodulin binding peptide) - used in C. elegans by e.g. Gottschalk et al 2005
- LAP tag (GFP - TEV - protein S) - used in C. elegans by e.g. Cheeseman et al 2004
- GS-tag (protein G x2 - TEV strepatavidin binding peptide) - reported to be an improvement on the original TAP tag in mammalian/Drosophila cells
- SF-tag (FLAG - strep tag x 2) - shorter
I would be interested to hear experiences about background, yield, ease of recovery from beads/columns etc.
Thanks,
Freddie