Title: "Fluorescent timer": protein that changes color with time.
Authors: Terskikh A, Fradkov A, Ermakova G, Zaraisky A, Kajava AV, Zhao X, Lukyanov S, Matz M, Weissman I, Siebert P, Kim SK, Tan PBO
Journal: Science
Published: 2000-11-24
Volume: 290
Pages: 1585-8