Comparison List


mKate is a basic (constitutively fluorescent) red fluorescent protein published in 2007, derived from Entacmaea quadricolor. It has high acid sensitivity.
Aggregation Organism Molecular Weight Cofactor
Monomer Entacmaea quadricolor 26.0 kDa -


Ex λ Em λ EC (M-1 cm-1) QY Brightness pKa Maturation (min) Lifetime (ns)
588 635 45,000 0.33 14.85 6.2    

OSER Measurements

% Normal Cells OSER/NE ratio Cell Type Reference
54.5 ± 4.8 (10000 cells) - HeLa Cranfill et al. (2016)


no photostability measurements available ... add one!

mKate Sequence

mKate was derived from TagRFP with the following mutations: R67K/N143S/F174L/H197R



Deposited: ,
Chromophore (MYG):


No excerpts have been added for mKate
Excerpts are snippets from publications that capture key information about this protein that does not easily fit into one of the existing fields (such as a summary, motivation, or observation).

Primary Reference

Additional References

  1. Two-photon absorption properties of fluorescent proteins

    Drobizhev M, Makarov Ns, Tillo Se, Hughes Te, Rebane A

    (2011). Nature Methods, 8(5) , 393-399. doi: 10.1038/nmeth.1596. Article   Pubmed

External Resources

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