Representative screenings on NAPPA array GST#1 of one AS patient plasma sample (AS4) (A and B) compared with one healthy control plasma sample (HC8) (C and D).
A, screening of one AS plasma sample with seven autoantigens (ringed spots) annotated. MAPK13, mitogen-activated protein kinase 13; APLP2, amyloid β precursor-like protein 2; DSCR2, proteasome assembly chaperone 1; TRIM27, tripartite motif-containing 27; FCGRT, Fc fragment of IgG receptor transporter; HSPA2, heat shock 70-kDa protein 2; SULT2A1, alcohol sulfotransferase. B, magnified section of A boxed in red. C, screening of one HC plasma sample with no autoantigens detected. The ringed spots are for comparative purposes only. D, magnified section of B boxed in green. The color code for array intensity ranges from least intense to most intense is: blue < green < yellow < orange < red. CTRL, control.