See Also: biological half-life(medicine)
biological products(medicine)
gene products, tat(medicine)
gene products, gag(medicine)
gene products, nef(medicine)
gene products, pol(medicine)
gene products, rex(medicine)
gene products, tax(medicine)
gene products, vif(medicine)
gene products, vpr(medicine)

gene products, tat (medicine) and biological half-life (medicine)


gene products, tat (medicine)


gene products, tat


Trans-acting transcription factors. Nuclear proteins whose expression is required for HIV viral replication. The tat protein stimulates HIV-ltr-driven RNA synthesis for both viral regulatory and viral structural proteins. Tat stands for trans-activation of transcription.


biological half-life (medicine)


biological half-life
<biochemistry, biology> This is the time required for one-half of the total amount of a particular substance in a biological system to be consumed or broken down by biological processes when the rate of removal is approximately exponential.

Toxic chemicals with a long biological half-life (such as some pesticides) will tend to accumulate in the body and are, therefore, more likely to be harmful. A substance with a short biological half-life may still accumulate if a portion of it it becomes tightly bound to bone or Other tissues, even if most of it is quickly cleared from the body.