Comparison List

Superfolder YFP

a.k.a. sfYFP

Superfolder YFP is a basic (constitutively fluorescent) green/yellow fluorescent protein published in 2005, derived from Aequorea victoria.

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Oligomerization Organism Molecular Weight Cofactor
Weak dimer Aequorea victoria 26.8 kDa -



Ex λ Em λ EC (M-1 cm-1) QY Brightness pKa Maturation (min) Lifetime (ns)
513 527          


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Superfolder YFP Sequence

Superfolder YFP was derived from Superfolder GFP with the following mutations: T203Y



We tested whether the superfolder mutations would improve the folding of color variants of folding reporter GFP. Blue, cyan and yellow fluorescent proteins (BFP, CFP, YFP) were produced from folding reporter GFP and superfolder GFP by incorporating the additional mutations Y66H (BFP), Y66W (CFP) and T203Y (YFP), respectively. E. coli colonies expressing the color variants of superfolder GFP as C-terminal fusions with poorly folded ferritin were brightly fluorescent…

Pédelacq et al. (2005)

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