MHC protein complex
MHC class I protein complex
GO:0042612
cellular_component
See also the cellular component term 'MHC class I peptide loading complex ; GO:0042824'.
A transmembrane protein complex composed of a MHC class I alpha chain and an invariant beta2-microglobin chain, and with or without a bound peptide antigen. Class I here refers to classical class I molecules.