Hinge Exons

**Definition:** Immunoglobulin heavy chain gene exons coding for the hinge region of the heavy chains between the first constant region (on the FAB FRAGMENTS) and the second constant region (on the FC FRAGMENTS).

**Tree numbers:** - G05.360.340.024.340.137.232.459 - G05.360.340.024.340.335.300.249

**Synonyms:** - Hinge Exon