Fig. 2

Effect of genetic variation on neurological protein levels. a Box plot of MDGA1 levels as a function of genotype (rs6938061, effect allele: A, other allele: G, beta = 1.00, se = 0.05). b Box plot of Siglec-9 levels as a function of genotype (rs4857414, effect allele: T, other allele: C, beta = −0.58, se = 0.05). Centre line of boxplot: median, bounds of box: first and third quartiles and tips of whiskers: minimum and maximum