from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. That is able to be activated by light
Sorry, no etymologies found.
Dr. Verkhusha's laboratory has also developed new red fluorescent proteins that are photoactivatable, meaning that they can be turned on from the dark to the fluorescent state using a short pulse of light.
As an example, a single point mutation to the native jellyfish peptide creates a photoactivatable version of green fluorescent protein (known as PA-GFP) that enables photoconversion of the excitation peak from ultraviolet to blue by illumination with light in the 400-nanometer range.
Recently, one of Dr. Verkhusha's photoactivatable probes allowed Einstein scientists to view individual breast cancer cells for several days at a time to obtain new insights into metastasis, the process by which tumor cells spread to other parts of the body.
They are photoactivatable fluorescent proteins (PAFPs) and other fluorescent proteins
Here we have developed a new approach to produce genetically encoded photoactivatable derivatives of Rac1, a key GTPase regulating actin cytoskeletal dynamics in metazoan cells.