Thus it is no surprise that the SLC genes included in our results of mRMR (4A8, 22A10, 22A15 - inorganic/organic ions transporters; 25A1 - mitochondrial carrier; 28A1 - nucleoside transporter; 45A2 - putative sugar transporter), which have similar functions to those in the literatures, may sustain similar functional roles and serve as good surrogates for prediction of HIV/AIDS outcomes. The gene discussed is CCL21; the disease is AIDS.