Table 2. The properties of fluorescent proteins structurally similar to mAG.

Protein	Sequence identity to mAG (%)	Chromophore	Fluorescent property	PDB code	R.m.s.d. ()
Dendra2	76	HYG	Green to red (irreversible)	2vzx	0.5
Dronpa	74	CYG	Green (reversibly switchable)	2iov (on-state)	0.4
				2pox (off-state)	0.4
KikG	74	DYG	Green	1xss	0.6
KikGR†	74	HYG	Green to red (irreversible)
Kaede	69	HYG	Green to red (irreversible)	2gw3 (green state)	0.5
				2gw4 (red state)	0.5
avGFP	27	GYG	Green	1ema	1.8

^†KikGR is a variant of KikG with eight point mutations, including D62H, that confer irreversible green-to-red photoconvertibility (Tsutsui et al., 2005 ▶).