Photoisomerization between A(neutral) and B(anionic) forms of wild-type GFP elucidated.

Resource:

K Brejc, TK Sixma, PA Kitts, SR Kain, RY Tsien, M Ormo, SJ Remington: Structural basis for dual excitation and photoisomerization of the Aequorea victoria green fluorescent protein. Proceedings of the National Academy of Sciences of the United States of America 94 (1997) 2306-11.