Table 3. Comparative analysis of the trimertrimer interfaces of the M. jannaschii complexes in the present structure and the monoclinic form.

	Complex 1	Complex 2	Monoclinic form
Hydrogen bonds, ion pairs and hydrophobic contacts in C1C4-type interfaces
Hydrogen bonds	25	4	2
Salt bridges	0	0	0
% in networks	0	0	0
Hydrophobic	918	915	1214
No. of hydrophobic pairs	812	79	810
ASA† buried, total	1014	1073	1048
ASA† buried, charged	266	244	226
ASA† buried, apolar	480	457	555
Hydrogen bonds, ion pairs and hydrophobic contacts in C1C5-type interfaces
Hydrogen bonds	1‡	1‡	1‡
Salt bridges	12§	1§	1§
% in networks	100	100	100
Hydrophobic	822	1216	1012
No. of apolar pairs	36	34	2
ASA†, buried total	610	572	811
ASA†, buried charged	247	209	414

^†The ASA of the C1C4-type interfaces was computed as the sum of the ASAs of all the monomers in the C complex minus the sum of the ASAs of the three C1C4-type dimers divided by three. The same procedure was used for the C1C5-type interfaces except that the C1C5-type dimers were used in the calculation.

^‡Only in one interface.

^§In two of the interfaces.