Definition: DNA sequences that form the coding region for at least three proteins which regulate the expression of HUMAN T-LYMPHOTROPIC VIRUS 1 and HUMAN T-LYMPHOTROPIC VIRUS 2. The proteins are p21(x), p27(rex), and p40(tax). The tax (trans-activator x) and rex (regulator x) genes are part of pX but are in overlapping reading frames. X was the original designation for the sequences or region (at that time of unknown function) in the long open reading frame (lor) which is now called pX.
Other names tax Genes; rex Genes; pX Genes; HTLV-II tax Genes; HTLV-II rex Genes; HTLV-I tax Genes; HTLV-I rex Genes; Genes, tax; Genes, rex; tax Genes, HTLV-II; tax Genes, HTLV-I; tax Gene, HTLV-II; tax Gene, HTLV-I; tax Gene; rex Genes, HTLV-II; rex Genes, HTLV-I; rex Gene, HTLV-II; rex Gene, HTLV-I; rex Gene; pX Gene
