TAP1-I- and C57BL/6 macrophages may process Crl-OVA and full-length OVA in different cellular compartments and that the protein context of the OVA Peptide(257-264) epitope influences the extent of TAP-independent processing for MHC class I presentation. OVA Peptide(257-264) epitope is presented with a differential dependence on the TAP transporter depending on the protein context of the OVA epitope: OVA Peptide(257-264) contained within the MBPCrl-OVA or Crl-OVA bacterial fusion proteins is presented with little dependence on the TAP transporter, while OVA Peptide(257-264) contained within full-length ovalbumin is largely dependent on the TAP transporter, regardless of whether recombinant OVA is expressed in bacteria or the native protein is coupled to polystyrene beads.
多肽
OVA 多肽(257-264) TFA(卵清蛋白八聚体肽)是由8个氨基酸组成的多肽,是?OVA 的 I 类 (Kb)-限制性表位肽,而OVA 是由 I 类 MHC 分子 H-2Kb 呈递的来自卵清蛋白的八聚体肽。