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On-bead digestion protocol: From immunoprecipitation with nanobodies to MS analysis

Posted by Christoph Eckert on Sep 15, 2017 3:52:48 PM

What makes on-bead digestion favorable?

Just pull down your protein of interest with immobilized nanobodies, also termed VHHs or single domain antibodies. Then follow the on-bead digestion protocol (see below) and submit the digest to your core facility for effective mass spectrometer analysis of (co-) precipitated proteins.

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Topics: GFP Immunoprecipitation, GFP Nanobody, GFP VHH, GFP mass spec, on-bead digestion, GFP-Trap

The best anti-GFP antibody for immunoprecipitation: GFP-Trap

Posted by Christoph Eckert on Sep 7, 2017 1:05:34 PM

Life science laboratories apply green fluorescent proteins (GFP) to study protein localization, interaction and dynamics in fluorescence microscopy. Immunoprecipitation (IP), mass spectrometry (MS), co-immunoprecipitation (Co-IP) and/or affinity purification investigate more aspects including posttranslational modifications (PTMs), DNA binding, and protein-protein interaction. Here, we compare two different antibody systems for immunoprecipitation of GFP-fusion proteins: GFP-Trap and anti-GFP IgG antibody

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Topics: GFP, GFP Immunoprecipitation, GFP-Trap, Best GFP antibody for IP, GFP VHH, GFP Nanobody, Best antibody for immunoprecipitation

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