2DUH:
reference: Ultrafast excited-state dynamics in the green fluorescent protein variant S65T/H148D. 1. Mutagenesis and structural studies., Shu X, Kallio K, Shi X, Abbyad P, Kanchanawong P, Childs W, Boxer SG, Remington SJ, Biochemistry. 2007 Oct 30;46(43):12005-13. Epub 2007 Oct 6. PMID: 17918959

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