1. Minor histocompatibility antigens in human stem cell transplantation
J.H.Frederik Falkenburg, Lisette van de Corput, Erik W.A Marijt, Roel Willemze 
Experimental Hematology 
Volume 31, Issue 9, Pages (September 2003)
DOI: /S X(03)

2. Figure 1
Proteins expressed in the cytosol or nucleus are degraded by the proteasome into smaller peptide fragments. These peptides can be N-terminally trimmed by aminopeptidases and subsequently translocated by the peptide pump “transporter in antigen processing” (TAP) over the membrane of the endoplasmic reticulum (ER). HLA class I molecules are synthesized and retained in the ER lumen until successful peptide binding occurs. These peptide/HLA complexes are subsequently transported to the plasma membrane.
Experimental Hematology  , DOI: ( /S X(03) )