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. 2016 Jul 17;197(16):2642–2652. doi: 10.1128/JB.00279-15

FIG 1.

FIG 1

Three types of chaperonin and their distribution in prokaryotes. (A) Alignment of the C-terminal regions (last 20 amino acids) of chaperonins from Pyrococcus, Thermococcus, Methanococcus, Sulfolobus, Thermus, and E. coli. Chaperonins whose C-terminal regions do not belong to the CpkA or CpkB type are labeled “C type.” (B) Distribution of chaperonins according to growth temperature. Prokaryotes examined included Aeropyrum pernix (37), Archaeoglobus fulgidus (38), Chloroflexus aurantiacus (39), Escherichia coli (40), Methanosarcina acetivorans (41), Methanococcoides burtonii (38), Methanocaldococcus jannaschii (38), Methanopyrus kandleri (38), Methanococcus mazei (42), Methanothermobacter thermautotrophicus (43), Methanothermobacter thermolithotrophicus (44), Picrophilus torridus (45), Psychromonas ingrahamii (46), Pyrobaculum aerophilum (38), Pyrococcus abyssi (38), Psychrobacter cryohalolentis (47), Pyrococcus furiosus (48), Pyrococcus horikoshii (38), Sulfolobus solfataricus (38), Sulfolobus tokodaii (49), Thermus aquaticus (50), Thermococcus kodakarensis (51), Thermoplasma acidophilum (38), and Thermoplasma volcanium (38). The numbers in the middle column represent the numbers of CpkA-type, CpkB-type, and C-type genes. The circled numbers indicate the lowest growth temperatures, and the arrows indicate the growth temperature ranges.