T-cell receptors: feeling out the complex.
Recent crystallographic studies show that the T-cell receptor has a largely immunoglobulin-like structure and binds to MHC-peptide complexes through loops from paired Valpha and Vbeta domains that focus on the central amino acids of the MHC-bound peptide, and to bacterial superantigens via peripheral aspects of the Vbeta domain.
Humans↗