Canadian Medical Guide > Biological Sciences > Genetic Structures > Genes > Genes, Regulator > Genes, pX Terms and Definitions

Genes, pX

Medical 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.
Also Called:	HTLV-I rex Genes,rex Genes,tax Genes,HTLV-I tax Genes,HTLV-II rex Genes,HTLV-II tax Genes
Previously Indexed:	Genes, Regulator (1984-1990),Genes, Viral (1984-1990)

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