As shown in Figure 2A, testing of this Ruc-Ro60-Δ2 fusion by QLIPS revealed that the GMT of the anti-Ro60 antibody in the 57 SjS samples was 18,967 LU (95% CI, 12,659-27,613), which was over 4-fold higher than the GMT of 3,917 LU (95% CI, 3,574-4293) of the controls (Mann Whitney U test, P < 0.0005). Here, RO60 is linked to Schwartz-Jampel syndrome.