Turtle IgD2 preserves an ancestral IgXA-derived XA3-XA4 module in a duplicated and locally remodeled IgD2-IgY constant-region2 array
The paper analyzes turtle IgD2 and IgY constant-region structures to show they preserve an ancestral IgXA-derived XA3-XA4 module in a duplicated and remodeled array.
bioRxiv · Jul 22, 2026 · PreprintImmunology