>|Synthetic FRET biosensor Twitch2B N532F(TW6) MVSKGEELFTGVVPILVELDGDVNGHKFSVSGEGEGDATYGKLTLKFICT TGKLPVPWPTLVTTLSWGVQCFARYPDHMKQHDFFKSAMPEGYVQERTIF FKDDGNYKTRAEVKFEGDTLVNRIELKGIDFKEDGNILGHKLEYNAIHGN VYITADKQKNGIKANFGLNCNIEDGSVQLADHYQQNTPIGDGPVLLPDNH YLSTQSKLSKDPNEKRDHMVLLEFVTAARMQVADASEEELSECFRIFDFD GNGFIDREEFGDIIRLTGEQLTDEDVDEIFGDSDTDKNGRIDFDEFLKMV ENVQPIYPELMGGVQLADHYQQNTPIGDGPVLLPDNHYLSYQSKLSKDPN EKRDHMVLLEFVTAAGITLGMDELYKGGTGGSMVSKGEELFTGVVPILVE LDGDVNGHKFSVRGEGEGDATNGKLTLKLICTTGKLPVPWPTLVTTLGYG LMCFARYPDHMKQHDFFKSAMPEGYVQERTIFFKDDGNYKTRAEVKFEGD TLVNRIELKGIDFKEDGNILGHKLEYNYNSHFVYITADKQKNGIKANFKI RHNIED