Biological process

antigen presentation, exogenous antigen via MHC class I, antigen presentation, exogenous antigen via major histocompatibility complex class I, exogenous peptide antigen processing and presentation via MHC class I

The process in which an antigen-presenting cell expresses a peptide antigen of exogenous origin on its cell surface in association with an MHC class I protein complex. The peptide antigen is typically, but not always, processed from a whole protein. Class I here refers to classical class I molecules.