Insights into MHC class I peptide loading from the structure of the tapasin-ERp57 thiol oxidoreductase heterodimer.
Dong, G., Wearsch, P.A., Peaper, D.R., Cresswell, P., Reinisch, K.M.(2009) Immunity 30: 21-32
- PubMed: 19119025 
- DOI: 10.1016/j.immuni.2008.10.018
- Primary Citation of Related Structures:  
3F8U - PubMed Abstract: 
Tapasin is a glycoprotein critical for loading major histocompatibility complex (MHC) class I molecules with high-affinity peptides. It functions within the multimeric peptide-loading complex (PLC) as a disulfide-linked, stable heterodimer with the thiol oxidoreductase ERp57, and this covalent interaction is required to support optimal PLC activity ...