TagFP Selector

TagFP Selector is based on a high-affinity single-domain antibody (sdAb) that is covalently immobilized on 4% cross-linked agarose beads.

The oriented and selective attachment via a flexible linker guarantees high accessibility of the sdAbs and largely eliminates batch-to-batch variations.

Due to the single-chain nature of sdAbs and their covalent attachment, no “leakage” of light and heavy chains from IgGs is observed during elution with SDS sample buffer. TagFP Selector thus features high affinity and superior capacity for TagFP fusion proteins while showing negligible non-specific background.

TagFP Selector captures a wide range of “Tag” fluorescent derivatives, including TagRFP, TagRFP657, TagBFP, mTagBFP2, mKate and mKate2. For detailed information, please refer to our FP Specificity Chart.

TagFP Selector is compatible with conventional physiological buffers and with more stringent compositions. As guidance, please look at some suggestions present in our IP protocol. TagFP Selector thus provides great freedom to adjust the binding and washing conditions to the experimental needs.