Table II.

Differences between the native and T2M-modified peptide/MHC structures are smaller than the differences between the two molecules in the asymmetric units^a

	Comparison of the Two Molecules in the Asymmetric Units		Comparison of Native and T2M- Modified Structures
Region Compared	Native A onto native B	T2M-modified A onto T2M-modified B	Native A onto T2M-modified A	Native B onto T2M-modified B
Whole complex
All common atoms	0.76	0.76	0.66	0.66
Backbone	0.35	0.29	0.15	0.30
Peptide binding domain
All atoms	0.80	0.78	0.67	0.65
Backbone	0.46	0.33	0.18	0.41
Peptide
All common atoms	1.10	1.05	0.20	0.21
Backbone	0.10	0.08	0.09	0.08

^aRMSD in angstroms.