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.

Descriptor ID	D016355
MeSH Number(s)	G05.360.340.024.340.425.416 G05.360.340.024.340.490.735 G05.360.340.400.500.735
Concept/Terms	Genes, pX Genes, pX pX Genes Gene, pX pX Gene Genes, lor Gene, lor lor Gene lor Genes HTLV-II rex Genes HTLV-II rex Genes Gene, HTLV-II rex Genes, HTLV-II rex HTLV II rex Genes HTLV-II rex Gene rex Gene, HTLV-II rex Genes, HTLV-II HTLV-II tax Genes HTLV-II tax Genes Gene, HTLV-II tax Genes, HTLV-II tax HTLV II tax Genes HTLV-II tax Gene tax Gene, HTLV-II tax Genes, HTLV-II tax Genes tax Genes Genes, tax Gene, tax tax Gene HTLV-I rex Genes HTLV-I rex Genes Gene, HTLV-I rex Genes, HTLV-I rex HTLV I rex Genes HTLV-I rex Gene rex Gene, HTLV-I rex Genes, HTLV-I rex Genes rex Genes Genes, rex Gene, rex rex Gene HTLV-I tax Genes HTLV-I tax Genes Gene, HTLV-I tax Genes, HTLV-I tax HTLV I tax Genes HTLV-I tax Gene tax Gene, HTLV-I tax Genes, HTLV-I

Below are MeSH descriptors whose meaning is more general than "Genes, pX".

Below are MeSH descriptors whose meaning is related to "Genes, pX".

Below are MeSH descriptors whose meaning is more specific than "Genes, pX".