2656220 ExpG experimental group 5 2656222 ExpG experimental glaucoma 2 2656225 ExpG experimental glaucoma model 1 2656221 ExpG expG-expC operon, encoding both a transcriptional regulator 1 2656223 ExpG ExpR was shown to be dependent on WggR 1 2656224 ExpG extra copies of the transcriptional regulator WggR 1