Pyrococcus furiosus	-	722519, 722535, 723210	
Thermococcus kodakarensis	-	727447	
Thermococcus litoralis	B2BSJ7: alpha subunit, B2BSJ6: beta subunit, B2BSJ5: gamma subunit, B2BSK0: delta subunit	727547	
Thermococcus litoralis DSM 5473	B2BSJ7: alpha subunit, B2BSJ6: beta subunit, B2BSJ5: gamma subunit, B2BSK0: delta subunit	727547