TurboFP650 (scientific name eqFP650) is a red-shifted variant of TurboFP635 (Katushka) [Shcherbo et al., 2010]. TurboFP650 is characterized by a strong bathochromic shift, with excitation and emission peaks at 592 nm and 650 nm, respectively.

TurboFP650 demonstrates fast maturation at 37°C and a high pH-stability and photostability. The protein does not show residual short wavelength fluorescence of intermediate or alternative chromophore forms, in contrast to E2-Crimson [Strack et al., 2009], which exhibits a second bright blue emission peak, and mNeptune [Lin et al., 2009], which has a pronounced green peak.

TurboFP650 is specially recommended for whole body imaging and multicolor applications.