aNeutral green chromophore. bAnionic green chromophore. cQuantum yields for all proteins were measured at pH 7.5. mPlum exhibits measureable green-yellow fluorescence emission at pH >7.5, but at pH 7.
aNeutral green chromophore.bAnionic green chromophore.cQuantum yields for all proteins were measured at pH 7.5. mPlum exhibits measureable green-yellow fluorescence emission at pH >7.5, but at pH 7.5,
