There's no vaccine to prevent HIV infection and no cure for AIDS. But it's possible to protect yourself and others from infection. That means educating yourself about HIV and avoiding any behavior that allows HIV-infected fluids â blood, semen, vaginal secretions and breast milk â into your body.hen used to help prevent HIV infection, Truvada is only appropriate if your doctor is certain you don't already have an HIV infection. Your doctor should also test for hepatitis B infection. If you have hepatitis B, your doctor should test your kidney function before prescribing Truvada.
Contact Us. A promoter is a regulatory region of DNA located upstream (towards the 5' region) of of a gene, providing a control point for regulated gene transcription.
Promoters are found adjacent to the genes they control. As you may know, transcription occurs in a 5â â>3â direction, so it stands to reason that the promoter region would be located in the 5â region of the DNA molecule, and upstream from the transcription start site.