Figure 1From: Severe anaemia is not associated with HIV-1 env gene characteristics in Malawian children PCR Primers used to amplify V1-V2-V3 fragment. A display of the primer sequences used to amplify the V1-V3 fragment located on the viral genome of the HIV-1 env protein. External PCR: primers indicated with a blue *. Internal PCR primers are indicated with a red * for the V regions and with a green * for the C regions.Back to article page