Plant epitopes for protein tagging!

Plant epitopes for protein tagging!

The study published in Nature Methods scientists use two plant protein epitopes, named inntags, as the most innocuous and stable tagging tools in the study of physical and functional interactions of proteins.

Inntags maintain their integrity, stability, solubility in cell extracts, diffusional mobility and do not cause important functional perturbations that commonly used tags -such as MYC, FLAG or HA- do cause.

Moreover, the tests have shown the applicability of Allergen Phl p2 and Heiven Isoform 2 in immunofluorescence and immunoprecipitation analysis of a series of proteins in mouse fibroblasts and hippocampal neurons.

As they are clearly more innocuous compared to commonly used tags, inntags may be the tools of choice to perform proteome-wide interactome studies, in situ analysis of proteins at the single-molecule level or when the target protein does not offer an obvious functional assay.