3SVO:
reference: Molecular Mechanism of a Green-Shifted, pH-Dependent Red Fluorescent Protein mKate Variant., Wang Q, Byrnes LJ, Shui B, Rohrig UF, Singh A, Chudakov DM, Lukyanov S, Zipfel WR, Kotlikoff MI, Sondermann H, PLoS One. 2011;6(8):e23513. Epub 2011 Aug 22. PMID: 21887263

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