HIV Envelope Protein gp41 [Chemical/Ingredient] HIV Envelope Protein gp41 Transmembrane envelope protein of the HUMAN IMMUNODEFICIENCY VIRUS which is encoded by the HIV env gene. It has a molecular weight of 41,000 and is glycosylated. The N-terminal part of gp41 is thought to be involved in CELL FUSION with the CD4 ANTIGENS of T4 LYMPHOCYTES, leading to syncytial formation. Gp41 is one of the most common HIV antigens detected by IMMUNOBLOTTING. N0000011448 Envelope Protein gp41, HIV HIV Envelope Protein gp41 C291805 M0024085 gp41(HIV) gp41 Envelope Protein, HIV env Protein gp41, HIV C0019692 HTLV-III gp41 5370 HIV Transmembrane Protein gp41 D015700 HIV Antigens [Chemical/Ingredient] Viral Fusion Proteins [Chemical/Ingredient] env Gene Products, Human Immunodeficiency Virus [Chemical/Ingredient]