Additional file 3.

Figure S1 Western blot showing expression of IRF5 in WIL2 NS cells. Figure S2 Relationship of the r2 values between rs729302 and the other single-nucleotide polymorphisms included in our study obtained in our samples and in phase 1 of the 1000 Genomes projec. Figure S3 Functional analysis of the positive control: the CGGGG indel. Figure S4 Lack of difference between the two alleles of rs4728142 in electrophoretic mobility shift assay.

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Alonso-Perez et al. Arthritis Research & Therapy 2013 15:R82   doi:10.1186/ar4262