Figure 3From: Citrullination, a possible functional link between susceptibility genes and rheumatoid arthritisCorrelation between the PADI4 haplotype and autoantibodies to citrullinated proteins (anti-filaggrin antibodies [AFA]). Homozygous susceptible (homo suscept.) rheumatoid arthritis (RA) patients (n = 30) are significantly more often AFA-positive than homozygous nonsusceptible (homo non-suscept.) RA patients (n = 33) or heterozygous (hetero) RA patients (n = 66) [7].Back to article page