Green Fluorescent Proteins nonhuman 44 article 42 priority journal 40 Animals 38 green fluorescent protein 36 controlled study 34 Mice 22 metabolism 22 mouse 22 Humans 20 animal cell 20 protein expression 20 Microscopy, Confocal 16 animal 14 enhanced green fluorescent protein 14 genetics 14 human 14 unclassified drug 14 Neurons 12 animal tissue 12 chemistry 12 protein localization 12 Article 10 Genes, Reporter 10 Mice, Inbred C57BL 10 Mice, Transgenic 10 Molecular Sequence Data 10 animal experiment 10 cell nucleus 10