Distinct CDR3 conformations in TCRs determine the level of cross-reactivity for diverse antigens, but not the docking orientation.
Jones LL, Colf LA, Stone JD, Garcia KC, Kranz DM, J Immunol, 2008 Nov 1 - link

Solution mapping of T cell receptor docking footprints on peptide-MHC.
Varani L, Bankovich AJ, Liu CW, Colf LA, Jones LL, Kranz DM, Puglisi JD, Garcia KC, Proc Natl Acad Sci U S A, 2007 Aug 7 - link