Nucleic acid compositions encoding rapidly maturing fluorescent proteins, as well as non-aggregating versions thereof (and mutants thereof) as well as the proteins encoding the same, are provided. The proteins of interest are proteins that are fluorescent, where this feature arises from the interaction...http://www.google.de/patents/US20050149994?utm_source=gb-gplus-sharePatent US20050149994 - Rapidly maturing fluorescent proteins and methods for using the same