GRIN2A comparison of the closest residues as determined by sequence (1D) or inter-residue distances (3D). (A) Residue distances from Pro686. (A₁) A linear heatmap raster plot and heatmap showing the distance of all residues in the GRIN2A subunit to residue Pro686. (A₂) A closer view of the ABD in A₁. (B) Closest 31 residues (1D) to Pro686. (B₁) A linear raster plot and structural view of the 31 sequentially closest (1D) residues (blue) to Pro686 (red), with the side chains depicted by sticks. (B₂) A closer view of the ABD in B₁. (C) Closest 31 residues (3D) to Pro686. (C₁) A linear raster plot and structural view of the 31 closest (3D) residues (blue) to Pro686 (red), side chains depicted by sticks. (C₂) A closer view of the ABD in C₁.