Genes, nef

**Definition:** DNA sequences that form the coding region for a protein that down-regulates the expression of human immunodeficiency virus (HIV). nef is short for negative factor.

**Tree numbers:** - G05.360.340.024.340.364.875.600 - G05.360.340.024.340.425.413 - G05.360.340.358.024.875.600 - G05.360.340.358.840.500.600

**Synonyms:** - HIV-3'-orf Genes - nef Genes