The present invention provides nucleic acid compositions encoding a novel colorless GFP-like protein, acGFP, from Aequorea coerulscens and fluorescent and non-fluorescent mutants and derivatives thereof, as well as peptides and proteins encoded by these nucleic acid compositions. The subject protein...http://www.google.com.au/patents/US7897726?utm_source=gb-gplus-sharePatent US7897726 - Fluorescent proteins from Aequorea coerulscens and methods for using the same