Envelope surface glycoprotein gp120
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env
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HIV-1 gp120 downregulates the expression of HLA-DOB in human B cells |
PubMed
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env
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HIV envelope protein gp120 can specifically inhibit CD4-dependent class II MHC-restricted T cell response to Ag |
PubMed
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env
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Amino acid residues 42-49 in the V1 region of CD4 are involved in the interaction between HIV-1 gp120 and class II major histocompatibility complex molecules |
PubMed
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Envelope surface glycoprotein gp160, precursor
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env
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Processing of HIV-1 gp160 to gp120 and gp41 is necessary for the association of HIV-1 envelope glycoproteins with class II MHC |
PubMed
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Envelope transmembrane glycoprotein gp41
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env
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Soluble HIV-1 gp41 enhancement effects on MHC class I and II antigen expression can be inhibited by soluble gp41-binding proteins of 45, 49 and 62 kD from human B cells |
PubMed
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env
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Soluble HIV-1 gp41 can selectively enhance MHC class I and II expression on human B cells, but does not increase expression of other cell surface antigens such as CD21 and CD54 (ICAM-1) |
PubMed
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env
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A 43-amino-acid sequence between amino acids 708 and 750 in the HIV-1 gp41(TM) cytoplasmic tail is required for efficient incorporation of HLA class II proteins into virions |
PubMed
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Nef
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nef
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Expression of patient-derived HIV-1 nef alleles downregulates MHC-II cell surface expression in activated CD4+ T cells |
PubMed
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nef
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HIV-1 group N and group O Nef alleles only weakly downregulate CD4, CD28, and class I and II MHC molecules |
PubMed
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nef
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HIV-1 Nef expression inhibits MHC II presentation of viral antigens in infected antigen-presenting cells |
PubMed
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nef
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Nef-triggered MHCII endocytosis requires Rab5 activity and lyst function, whereas lysosomal trafficking of internalized MHCII molecules requires Rab7 activity |
PubMed
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Pr55(Gag)
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gag
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HIV-1 Gag virus-like particles efficiently activate human monocyte-derived dendritic cells (MDDC) and induce MDDC maturation with an associated increase in the surface expression of CD80, CD86 and MHC classes I and II |
PubMed
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gag
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Two peptides of the CA domain of HIV-1 Gag, VDRFYKTLRAEQASQ and DRFYKLTRAEQASQ, are presented on MHC II molecules of dendritic cells and have similar sensitivity for antigen-specific T cells |
PubMed
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gag
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HIV-1 Gag virus-like particle-induced monocyte activation is shown by upregulation of molecules involved in antigen presentation (MHC II, CD80, CD86) and cell adhesion (CD54) |
PubMed
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Tat
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tat
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HIV-1 Tat downregulates expression of MHC class II genes in antigen-presenting cells (APC) by inhibiting the transactivator of MHC class II genes, CIITA |
PubMed
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Vpu
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vpu
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HIV-1 Vpu interacts with CD74 and modulates MHC II in HIV-1-infected cells |
PubMed
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