DsRed, a recently cloned red fluorescent protein, has attracted great interest as an expression tracer and fusion partner for multicolor imaging. We report that three-photon excitation (λ <760 nm ...

“There are seven fluorescent proteins, two of them monomers—the monomeric DsRed and AcGFP—and the others are tetrameric or dimeric,” says Michael Haugwitz, associate director of cell ...