RPGR and retinitis pigmentosa: It was also published as a candidate for the retinitis pigmentosa RP3 locus (Roux et al., 1994), although this link was later disproven (Meindl et al., 1996) when RPGR (retinitis pigmentosa GTPase regulator) was identified as the causative gene for this phenotype (Ferrari et al., 2011).