DNAJC7 and Autoimmunity: In addition, TPR3, the closest homolog of TPR2, has some functional redundancy with TPR2 in repressing autoimmunity in srfr1-4 in that the srfr1-4 tpr2-2 tpr3-1 triple mutant is significantly more stunted than srfr1-4 tpr2-2 and shows increased PR2 levels relative to srfr1-4 tpr2-2 and srfr1-4.