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.
Mitochondrial DNA (mtDNA) has two major parts, the control region and the coding region. The control region is often called the hypervariable region (HVR). Hypervariable means fast changing.In mitochondrial DNA, the control region is the fast changing part. The control region may be further divided into two hypervariable regions, HVR1 and HVR2. 1  HVR1 runs from nucleotide 16001 to nucleotide 16569. 2  HVR2 runs from nucleotide 00001 to nucleotide 00574.ypervariable means fast changing. In mitochondrial DNA, the control region is the fast changing part. The control region may be further divided into two hypervariable regions, HVR1 and HVR2.