Katushka2S
Katushka2S (Ex-Max 588 nm/Em-Max 633 nm)
Katushka2S is a dimeric fluorescent protein derived from the sea anemones, Entacmaea quadricolor. It has an excitation peak at 588 nm and an emission 633 nm.
Excitation & emission spectra
Key facts
- Excitation maximum
- 588 nm
- Emission maximum
- 633 nm
- Optimal laser line
- 594
- Optimal filter
- 630/69
- Extinction coefficient
- 67000
- Quantum yield
- 0.44
- Molecular weight
- 26400
Katushka2S has an excitation maximum at 588 nm and an emission maximum at 633 nm, a Stokes shift of 45 nm. Its extinction coefficient is 67000 M⁻¹cm⁻¹. It is optimally excited by the 594 laser line.
Frequently asked questions
- What is Katushka2S?
- Katushka2S is a dimeric fluorescent protein derived from the sea anemones, Entacmaea quadricolor. It has an excitation peak at 588 nm and an emission 633 nm.
- What laser excites Katushka2S?
- Katushka2S is optimally excited by the 594 laser line. Its excitation maximum is 588 nm.
- What filter should I use to detect Katushka2S?
- A 630/69 filter captures the peak of the Katushka2S emission near 633 nm with minimal spillover.