SULT1A1 and HIV-1 infection: It will be important for future studies to determine which sulfotranserase(s) regulate HIV-1 infection and reactivation from latency in CD4+ T cells, as SULT1A1 does not appear to be expressed at the protein level in these cells and control has been demonstrated at level of transcription, not reverse transcription, upon treatment with chlorate and guaiacol.