... Cross-linking studies with radio-labelled model peptides identified a homologous,hydrophobic binding site on the b¢ domain of humanPDI [13].Sequence identity between human and yeast PDI forthe ... non-classical SXXC motif thatengages in disul de- dependent interactions in the endo-plasmic reticulum. J Biol Chem 280 , 1376–1383.22 Wang L, Wang L, Vavassori S, Li S, Ke H, Anelli T,Degano ... 281–294.34 Peng JW & Wagner G (1994) Investigation of proteinmotions via relaxation measurements. Meth Enzymol239, 563–596.35 Ottiger M, Delaglio F & Bax A (1998) Measurement ofJ and dipolar...