>4W7A_1|Chains A, B, C, D|fluorescent protein D21H/K26C|synthetic construct (32630) GMRKGEELFTGVVPILIELDGHVNGHCFFVRGEGEGDATIGKLSLKFIATTGKLPVPWPTLVTTLTYGVQCFSRYPDHMKRHDFFKSAMPEGYVQERTIYFKDDGTYKTRAEVKFEGDTLVNRIELKGIDFKEDGNILGHKLEYNFNSHKVYITADKQNNGIKANFTIRHNVEDGSVQLADHYQQNTPIGDGPVDLPDDHYLSTQTILSKDLNEKRDHMVLLEYVTAAGIT