Opto-Nanobodies: Using Light to Manipulate Cell Signaling and Protein Purification
Type
Blog Post
...favorite protein (YFP). You have two options:
Option #1: Affinity tag purification
You tag YFP and use an affinity...binding YFP to the column, you wash several times to remove non-specific proteins, and then elute YFP.
Option...Opto-Nanobodies (OptoNBs) purification
You skip adding a tag to YFP and instead use OptoNBs. You fill a column with...the lights, OptoNBs bind YFP and non-specific proteins flow through. To elute YFP, you turn on the blue ...protein. OptoNBs were also tagged with an infrared fluorescent protein tag which let the team detect its... be tagged, which limits these approaches to use with recombinant proteins. Purifying an untagged protein...used nickel-coated agarose beads coated with his-tagged OptoNBs. OptoNB coated beads were then imaged while...