Abstract
Affinity purification of a target protein followed by mass spectrometry of the purified peptides can be used to identify physical interactors of the protein of interest. Using this biochemical approach on proteins from whole organisms such as C. elegans can reveal novel in vivo protein interactions that cannot be identified using homology-based predictions or in vitro approaches. Here we describe affinity purification of a GFP-tagged target protein from whole worm lysates, digestion of the purified proteins into peptides, and preparation of the peptides for analysis by mass spectrometry. This protocol has been optimized for ChromoTek GFP-Trap® Magnetic Agarose beads, but it may be used with other tags and antibody-conjugated beads.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsReferences
Branon TC, Bosch JA, Sanchez AD et al (2018) Efficient proximity labeling in living cells and organisms with TurboID. Nat Biotech 36:880–887
Steen H, Mann M (2004) The abc’s (and xyz’s) of peptide sequencing. Nat Rev Mol Cell Biol 5:699–711
Hesketh GG, Youn JY, Samavarchi-Tehrani P et al (2017) Parallel exploration of interaction space by BioID and affinity purification coupled to mass spectrometry. In: Comai L, Katz J, Mallick P (eds) Proteomics. MIMB vol 1550. Humana Press, New York
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2020 Springer Science+Business Media, LLC, part of Springer Nature
About this protocol
Cite this protocol
Popiel, E., Derry, W.B. (2020). Affinity Purification and Preparation of Peptides for Mass Spectrometry from C. elegans. In: Trabalzini, L., Finetti, F., Retta, S. (eds) Cerebral Cavernous Malformations (CCM) . Methods in Molecular Biology, vol 2152. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-0640-7_36
Download citation
DOI: https://doi.org/10.1007/978-1-0716-0640-7_36
Published:
Publisher Name: Humana, New York, NY
Print ISBN: 978-1-0716-0639-1
Online ISBN: 978-1-0716-0640-7
eBook Packages: Springer Protocols