The transporter associated with antigen processing(TAP) plays a pivotal role in the presentation of intracellular antigen by translocating intracellular antigenic peptides from the cytosol into the lumen of endoplasmic reticulum(ER).

• 抗原处理相关转运体蛋白(transporter associated with antigen processing,TAP)在内源性抗原提呈过程中有重要作用,负责内源性抗原从胞浆到内质网(ER)腔的转运。