The Evolutionary Relationship between Microbial Rhodopsins and Metazoan Rhodopsins

Table 1

PDB accession numbers for two metazoan rhodopsins and five microbial rhodopsins.

PDB number	Protein name	Species	Classification
1U19	Rhodopsin	Bos taurus (bovine)	Eukaryota; (Animalia)
2Z73	Rhodopsin	Todarodes pacificus (Japanese flying squid)	Eukaryota; (Animalia)
1GU8	Sensory rhodopsin II	Natronobacterium pharaonis	Archaea; (Halobacteria)
1JV6	Bacteriorhodopsin	Halobacterium salinarum	Archaea; (Halobacteria)
1XIO	Anabaena sensory rhodopsin	Nostoc sp. pcc 7120	Bacteria; (Cyanobacteria)
3A7K	Halorhodopsin	Natronomonas pharaonis dsm 2160	Archaea; (Halobacteria)
3DDL	Xanthorhodopsin	Salinibacter ruber	Bacteria; (Sphingobacteria)