UniProt ID | ENV_HV1H2 | |
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UniProt AC | P04578 | |
Protein Name | Envelope glycoprotein gp160 {ECO:0000255|HAMAP-Rule:MF_04083} | |
Gene Name | env {ECO:0000255|HAMAP-Rule:MF_04083} | |
Organism | Human immunodeficiency virus type 1 group M subtype B (isolate HXB2) (HIV-1). | |
Sequence Length | 856 | |
Subcellular Localization |
Surface protein gp120: Virion membrane Peripheral membrane protein . Host cell membrane Peripheral membrane protein . Host endosome membrane Single-pass type I membrane protein . The surface protein is not anchored to the viral envelope, but as |
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Protein Description | Envelope glycoprotein gp160: Oligomerizes in the host endoplasmic reticulum into predominantly trimers. In a second time, gp160 transits in the host Golgi, where glycosylation is completed. The precursor is then proteolytically cleaved in the trans-Golgi and thereby activated by cellular furin or furin-like proteases to produce gp120 and gp41.; Surface protein gp120: Attaches the virus to the host lymphoid cell by binding to the primary receptor CD4. This interaction induces a structural rearrangement creating a high affinity binding site for a chemokine coreceptor like CXCR4 and/or CCR5. Acts as a ligand for CD209/DC-SIGN and CLEC4M/DC-SIGNR, which are respectively found on dendritic cells (DCs), and on endothelial cells of liver sinusoids and lymph node sinuses. These interactions allow capture of viral particles at mucosal surfaces by these cells and subsequent transmission to permissive cells. HIV subverts the migration properties of dendritic cells to gain access to CD4+ T-cells in lymph nodes. Virus transmission to permissive T-cells occurs either in trans (without DCs infection, through viral capture and transmission), or in cis (following DCs productive infection, through the usual CD4-gp120 interaction), thereby inducing a robust infection. In trans infection, bound virions remain infectious over days and it is proposed that they are not degraded, but protected in non-lysosomal acidic organelles within the DCs close to the cell membrane thus contributing to the viral infectious potential during DCs' migration from the periphery to the lymphoid tissues. On arrival at lymphoid tissues, intact virions recycle back to DCs' cell surface allowing virus transmission to CD4+ T-cells.; Transmembrane protein gp41: Acts as a class I viral fusion protein. Under the current model, the protein has at least 3 conformational states: pre-fusion native state, pre-hairpin intermediate state, and post-fusion hairpin state. During fusion of viral and target intracellular membranes, the coiled coil regions (heptad repeats) assume a trimer-of-hairpins structure, positioning the fusion peptide in close proximity to the C-terminal region of the ectodomain. The formation of this structure appears to drive apposition and subsequent fusion of viral and target cell membranes. Complete fusion occurs in host cell endosomes and is dynamin-dependent, however some lipid transfer might occur at the plasma membrane. The virus undergoes clathrin-dependent internalization long before endosomal fusion, thus minimizing the surface exposure of conserved viral epitopes during fusion and reducing the efficacy of inhibitors targeting these epitopes. Membranes fusion leads to delivery of the nucleocapsid into the cytoplasm.. | |
Protein Sequence | MRVKEKYQHLWRWGWRWGTMLLGMLMICSATEKLWVTVYYGVPVWKEATTTLFCASDAKAYDTEVHNVWATHACVPTDPNPQEVVLVNVTENFNMWKNDMVEQMHEDIISLWDQSLKPCVKLTPLCVSLKCTDLKNDTNTNSSSGRMIMEKGEIKNCSFNISTSIRGKVQKEYAFFYKLDIIPIDNDTTSYKLTSCNTSVITQACPKVSFEPIPIHYCAPAGFAILKCNNKTFNGTGPCTNVSTVQCTHGIRPVVSTQLLLNGSLAEEEVVIRSVNFTDNAKTIIVQLNTSVEINCTRPNNNTRKRIRIQRGPGRAFVTIGKIGNMRQAHCNISRAKWNNTLKQIASKLREQFGNNKTIIFKQSSGGDPEIVTHSFNCGGEFFYCNSTQLFNSTWFNSTWSTEGSNNTEGSDTITLPCRIKQIINMWQKVGKAMYAPPISGQIRCSSNITGLLLTRDGGNSNNESEIFRPGGGDMRDNWRSELYKYKVVKIEPLGVAPTKAKRRVVQREKRAVGIGALFLGFLGAAGSTMGAASMTLTVQARQLLSGIVQQQNNLLRAIEAQQHLLQLTVWGIKQLQARILAVERYLKDQQLLGIWGCSGKLICTTAVPWNASWSNKSLEQIWNHTTWMEWDREINNYTSLIHSLIEESQNQQEKNEQELLELDKWASLWNWFNITNWLWYIKLFIMIVGGLVGLRIVFAVLSIVNRVRQGYSPLSFQTHLPTPRGPDRPEGIEEEGGERDRDRSIRLVNGSLALIWDDLRSLCLFSYHRLRDLLLIVTRIVELLGRRGWEALKYWWNLLQYWSQELKNSAVSLLNATAIAVAEGTDRVIEVVQGACRAIRHIPRRIRQGLERILL | |
Overview of Protein Modification Sites with Functional and Structural Information | ||
* ASA = Accessible Surface Area
Locations | Modification | Substrate Peptides & Secondary Structure |
ASA (%) | Reference | Orthologous Protein Cluster |
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88 | N-linked_Glycosylation | PQEVVLVNVTENFNM CCCEEEEEEECCCCH | 30.72 | 26972002 | |
136 | N-linked_Glycosylation | LKCTDLKNDTNTNSS EEECCCCCCCCCCCH | 69.50 | UniProtKB CARBOHYD | |
141 | N-linked_Glycosylation | LKNDTNTNSSSGRMI CCCCCCCCCHHCCEE | 41.80 | UniProtKB CARBOHYD | |
156 | N-linked_Glycosylation | MEKGEIKNCSFNIST EECCCEEEEEEEEEH | 32.12 | 26972002 | |
160 | N-linked_Glycosylation | EIKNCSFNISTSIRG CEEEEEEEEEHHHCC | 15.82 | 26972002 | |
186 | N-linked_Glycosylation | LDIIPIDNDTTSYKL EEEEEECCCCCCEEE | 49.61 | UniProtKB CARBOHYD | |
197 | N-linked_Glycosylation | SYKLTSCNTSVITQA CEEEECCCCHHHCCC | 34.85 | 14981267 | |
230 | N-linked_Glycosylation | FAILKCNNKTFNGTG EEEEEECCEEECCCC | 54.97 | UniProtKB CARBOHYD | |
234 | N-linked_Glycosylation | KCNNKTFNGTGPCTN EECCEEECCCCCCCC | 52.96 | 26972002 | |
241 | N-linked_Glycosylation | NGTGPCTNVSTVQCT CCCCCCCCCCEEECC | 32.24 | UniProtKB CARBOHYD | |
262 | N-linked_Glycosylation | VSTQLLLNGSLAEEE EEEEEEECCCCCCCE | 37.67 | 14981267 | |
276 | N-linked_Glycosylation | EVVIRSVNFTDNAKT EEEEEEEECCCCCEE | 35.03 | 14981267 | |
289 | N-linked_Glycosylation | KTIIVQLNTSVEINC EEEEEEECCEEEEEE | 17.14 | 9641677 | |
295 | N-linked_Glycosylation | LNTSVEINCTRPNNN ECCEEEEEECCCCCC | 13.96 | 14981267 | |
301 | N-linked_Glycosylation | INCTRPNNNTRKRIR EEECCCCCCCCCEEE | 54.66 | UniProtKB CARBOHYD | |
332 | N-linked_Glycosylation | NMRQAHCNISRAKWN CCCHHHCCCCHHHHH | 25.96 | 9641677 | |
339 | N-linked_Glycosylation | NISRAKWNNTLKQIA CCCHHHHHHHHHHHH | 30.79 | 9641677 | |
356 | N-linked_Glycosylation | LREQFGNNKTIIFKQ HHHHHCCCCEEEEEC | 43.13 | 19965434 | |
386 | N-linked_Glycosylation | GGEFFYCNSTQLFNS CCEEEEECCCCCCCC | 36.39 | 9641677 | |
392 | N-linked_Glycosylation | CNSTQLFNSTWFNST ECCCCCCCCCCCCCC | 47.31 | 14981267 | |
397 | N-linked_Glycosylation | LFNSTWFNSTWSTEG CCCCCCCCCCCCCCC | 30.05 | UniProtKB CARBOHYD | |
406 | N-linked_Glycosylation | TWSTEGSNNTEGSDT CCCCCCCCCCCCCCE | 71.01 | UniProtKB CARBOHYD | |
448 | N-linked_Glycosylation | GQIRCSSNITGLLLT CEEEECCCCCEEEEE | 21.39 | 14981267 | |
463 | N-linked_Glycosylation | RDGGNSNNESEIFRP CCCCCCCCCCCCCCC | 54.73 | 11188697 | |
611 | N-linked_Glycosylation | CTTAVPWNASWSNKS EEECCCCCCCCCCCC | 20.30 | 26972002 | |
616 | N-linked_Glycosylation | PWNASWSNKSLEQIW CCCCCCCCCCHHHHH | 31.51 | UniProtKB CARBOHYD | |
624 | N-linked_Glycosylation | KSLEQIWNHTTWMEW CCHHHHHCCCCHHHH | 25.02 | UniProtKB CARBOHYD | |
637 | N-linked_Glycosylation | EWDREINNYTSLIHS HHHHHHHHHHHHHHH | 47.31 | 26972002 | |
674 | N-linked_Glycosylation | ASLWNWFNITNWLWY HHHHHHHHHHHHHHH | 31.61 | UniProtKB CARBOHYD | |
764 | S-palmitoylation | WDDLRSLCLFSYHRL HHCHHHHHHHCHHHH | 3.67 | 7568235 | |
837 | S-palmitoylation | IEVVQGACRAIRHIP HHHHHHHHHHHHHHH | 3.74 | 7568235 |
Modified Location | Modified Residue | Modification | Type of Upstream Proteins | Gene Name of Upstream Proteins | UniProt AC of Upstream Proteins | Sources |
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Oops, there are no upstream regulatory protein records of ENV_HV1H2 !! |
Modified Location | Modified Residue | Modification | Function | Reference | ||
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Oops, there are no descriptions of PTM sites of ENV_HV1H2 !! |
* Distance = the distance between SAP position and PTM sites.
Modified Location | Modification | Variant Position (Distance <= 10) |
Residue Change | SAP | Related Disease | Reference |
---|---|---|---|---|---|---|
Oops, there are no SNP-PTM records of ENV_HV1H2 !! |
Kegg Drug | ||||||
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DrugBank | ||||||
There are no disease associations of PTM sites. |
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Palmitoylation | |
Reference | PubMed |
"The human and simian immunodeficiency virus envelope glycoproteintransmembrane subunits are palmitoylated."; Yang C., Spies C.P., Compans R.W.; Proc. Natl. Acad. Sci. U.S.A. 92:9871-9875(1995). Cited for: PALMITOYLATION, AND MUTAGENESIS OF CYS-764 AND CYS-837. |