Table 2.

Chirality errors and cis peptides identified in atomic models obtained by various flexible fitting methods, deposited as part of the Cryo-EM Modeling Challenge 2010. The number of chirality errors is given first, followed by the number of cis peptide bonds. For rotavirus and ribosome, 3 and 6 cis peptides, respectively, involving Pro present in the original structures were not considered. Mm-cpn models obtained by Gorgon contain only a single unit, so the total number stereochemical errors can be obtained by multiplying the given values by 16. Cases for which a model was not deposited are identified with n/a.

System	Resolution	MDFF	DireX	Rosetta	Gorgon	Froda
Aquaporin	3 Å	0, 0	0, 0	0, 0	n/a	n/a
GroEL	4 Å	0, 0	0, 4	0, 0	n/a	n/a
GroEL-GroES	7.7 Å	0, 0	194, 60	0, 0	n/a	14, 11
Rotavirus	3.8 Å	0, 0	0, 1	n/a	n/a	n/a
Mm-cpn closed state	4.3 Å	0, 0	0, 0	0, 0	244, 202	n/a
Mm-cpn open state	8 Å	0, 0	n/a	0, 0	267, 257	694, 115
Ribosome	6.4 Å	0, 0	n/a	n/a	n/a	n/a