Fig. 2From: Targeted Synovial Fluid Proteomics for Biomarker Discovery in Rheumatoid ArthritisFraction containing candidate autoantigen detected on second-dimension RP-HPLC. Fractions from the SF separation were spotted in a protein array, which was used to determine which fractions contained an autoantigen. Arrow points patient synovial fluid fraction that reacted with RA patient serumBack to article page