peptide-binding groove

https://doi.org/10.1351/goldbook.13548
Structural feature found in major histocompatibility complex (MHC) class I and class II heterodimeric proteins that can bind endogenous peptides.
Source:
PAC, 2012, 84, 1113. (IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)) on page 1226 [Terms] [Paper]