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|State||Ex λ||Em λ||EC (M-1 cm-1)||QY||Brightness||pKa||Maturation (min)||Lifetime (ns)|
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Dendra was derived from dendFP with the following mutations: L40A/L61V/Y95F/N121K/M123T/Y188A/S199G/G213A
To make dendGFP suitable for protein labeling we generated a monomeric variant, named Dendra (from Dendronephthya sp., red activatable), using mutagenesis strategy suggested for monomerization of green fluorescent protein Azami-Green. In contrast to a recently developed monomeric version of EosFP, called mEosFP, Dendra completely matures at 37 °C in both bacterial and mammalian cells. Bacterial colonies expressing Dendra can be irreversibly converted from green to red fluorescent states by irradiation with a 405-nm light using a fluorescent stereomicroscope. For purified Dendra, we achieved a 350-fold increase of red fluorescence and a fivefold decrease of green fluorescence resulting in a 1,400-fold contrast between the ground and activated states.