Phenotypic frequencies (%) of SNP alleles in Russian MS patients and healthy individuals. The numbers of typed individuals are given in Table 1. A: TNF and LT gene polymorphic regions; B: TGF β1, CCR5 and CTLA4 gene polymorphic regions. For each SNP, phenotypic frequencies of both alleles are shown on the same axis of a radar chart; thick lines join all common and all rare alleles of SNPs presented, and SNP allele names are indicated on the vertices. The same data are presented in Additional Table 1 [see Additional File 4].