Fig. 1.

Schematic representation of the GRIN2B gene structure. Black boxes indicate coding exons, open boxes indicate first untranslated exons and the 3′ untranslated region. Haplotype blocks, linkage disequilibrium structure and genotyped single nucleotide polymorphisms (SNPs) in the 3′ region of GRIN2B derived by Haploview software. Alternate names for SNPs previously used in the literature are in parentheses. Linkage disequilibrium values are shown inside the squares if they are less than 1. The r² linkage disequilibrium colour scheme is as follows: r² = 0: white; 0 < r² < 1: shades of grey; r² = 1: black.