Skip to main content

Peptide Receptor Interface

Meaning

The Peptide Receptor Interface is the precise molecular and structural region where a signaling peptide, such as a growth factor or a hypothalamic releasing hormone, physically interacts with its cognate cell surface receptor. The integrity and conformational fit of this interface are paramount, determining the affinity, specificity, and efficacy of the hormonal signal transmission into the cell. Any structural degradation or conformational change at this site, often due to aging or disease, can compromise the signal, leading to reduced cellular response and systemic endocrine dysfunction. This interface is a critical checkpoint for all peptide-mediated hormonal communication.