Immunoglobulin Heavy Chain Variable Domain

**Semantic type:** Amino Acid, Peptide, or Protein

**Definition:** The portion of an antibody molecule that contains the three hypervariable regions in the heavy chains. It is comprised of at most a third of the heavy chains from the amino termini.

**Synonyms:** - IgH Variable Domain - IgH Variable Region - IgHV - Immunoglobulin Heavy Chain Variable Region