Human immunodeficiency virus type 1 Gag, Pol, and Nef polyproteins (HIV-1 Gag, HIV-1 Pol, HIV-1 Nef)

**HIV-1 Gag, Pol, and Nef are three essential gene products of the Human immunodeficiency virus type 1 (HIV-1), each contributing distinct but overlapping functions in the viral life cycle.** - **Gag (group-specific antigen)** is a polyprotein that is cleaved to form the matrix, capsid, nucleocapsid, and p6 structural proteins; it drives viral assembly, budding, and core formation[2][1]. - **Pol (polymerase)** is translated as a Gag-Pol fusion polyprotein, then cleaved to produce the reverse transcriptase, integrase, and protease enzymes required for viral genome replication and maturation[7][2]. - **Nef (negative regulatory factor)** is a small, myristoylated accessory protein that enhances viral replication, modulates immune evasion (e.g., downregulates CD4 and MHC I on host cells), and increases viral infectivity via complex effects on host vesicular trafficking, cell signaling, and actin dynamics[4][5][6][1]. These proteins are required for productive infection, immune escape, and pathogenesis of AIDS. **Is_incorrect explanation:** Grouping Gag, Pol, and Nef together as a single "target" is atypical, as each is a functionally distinct polyprotein with different molecular classifications (structural, enzymatic, accessory)[2][4][7][1][5]. Drug development and research typically target each gene or its product separately (e.g., only Pol for reverse transcriptase, Gag for viral assembly, or Nef for accessory functions). Therefore, this entry contains too much/too unspecific information to be considered a canonical single target. For most structured databases, each of *Gag*, *Pol*, and *Nef* should be considered its own target molecule, with its own canonical name, abbreviation, and functional classification.

Other names

Gag polyproteinPol polyproteinNef proteinHIV-1 structural polyproteinHIV-1 group-specific antigen (Gag)HIV-1 polymerase (Pol)HIV-1 negative regulatory factor (Nef)

Inhibition of reverse transcriptase (halts viral RNA to DNA conversion) - Inhibition of integrase (blocks integration of viral DNA into host genome) - Inhibition of protease (prevents maturation of viral particles) - Research targets of Nef inhibitors (not approved therapeutics as of this writing)