| IED ID | IndEnz0002006131 |
| Enzyme Type ID | protease006131 |
| Protein Name |
Genome polyprotein Cleaved into: Capsid protein C Core protein ; Protein prM; Peptide pr; Small envelope protein M Matrix protein ; Envelope protein E; Non-structural protein 1 NS1 Fragment |
| Gene Name | |
| Organism | Dengue virus type 2 (strain China/D2-04) (DENV-2) |
| Taxonomic Lineage | Viruses Riboviria Orthornavirae Kitrinoviricota Flasuviricetes Amarillovirales Flaviviridae Flavivirus (arboviruses group B) Dengue virus Dengue virus 2 Dengue virus type 2 (strain China/D2-04) (DENV-2) |
| Enzyme Sequence | MNNQRKKARSTPFNMLRRERNRVSTVQQLTKRFSLGMLQGRGPLKLFMALVALPRFLTIPPTAGILKRWGTIKKSKAINDVRGCRKEIGRMLNILNRRRRTAGVIIMLIPTVMAFHLTTRNGEPHMIVSRQEKGKSLLFKTEDGVNMCTLMAIDFGELCEDTITYKCPLLRQNEPEDIDCWCNSTSTWVTYGTRTTTGEHGREKRSVALVPHVGMGLETGTETWMSSDGAWKRACRMETWILRHPGFTIMAAILAYTIGTTHFQRGLILILQTAVAPSMTMRCIGISNRDFVEGVSGGSWVDIVLEHGSCVTTMAKNKPTLDFELIKTEATQPATLRKYCIEAKLTNTTTESRCPTQGEPSLNEEQDKRFVCKHSMVDRGWGNGCGLFGKGGIVTCAMFTCKKNMEGNIVQPENLEYTIVITPHSGEEHAVGNDTGKHGKEIKITPQSSITEAELTGYGTVTMECSPRTGLDFNEIVLLQMEDKAWLVHRQWFLDLPLPWLPGADTQGSNRIQKETLVTFKNPHAKKQDVVVLGSQEGAMHTALTGATEIQMSSGNLLFTGHLKCRLRMDKLQLKGMSYSMCTGKFQIVKEIAETQHGTIVIRVQYEGDGSPCKIPLEIMDLEKRHVLGRLITVNPIVTEKDSPVNIEAEPPFGDSYIIIGVEPGQLKLHWFKKGSSIGQMFETTMRGAKRMAILGDTAWDFGSLGGVFTSIGKALHQVFGAIYGAAFSGVSWTMKILIGVIITWIGMNSRSTSLSVSLVLVGVITLYLGAMVQADSGCVVSWKNKELKCGSGIFITDNVHTWTEQYNFQPESPSKLASAMRKAHEEGICGIRSVTRLENLMWKQITPELKHILSEIEVKLTIMTGDIKGIMQAGTRSLRPQPTELKFSWETWRKAKMVPTEPHNQTFLIDGPETAECPNTNRAWNSLEVEDYGFGVFTTNIWLKLREKEDLCCDSKVMSAASKDNRAVHDDMGYWIESALNDTWKMEKASFIEVKSCHWPKSHTLWINGGLESEMIIPKSFAGPVSQHNYRPGYYTQTAGPRHLGKLEMDFDFCEGTTVVVTEDCGNRGPSLRTTTASGKLITEWCCRSSTIPPLRIKGEDGCWYGMEIRPLKEKEENLVTSLVTA |
| Enzyme Length | 1127 |
| Uniprot Accession Number | P30026 |
| Absorption | |
| Active Site | |
| Activity Regulation | |
| Binding Site | |
| Calcium Binding | |
| catalytic Activity | |
| DNA Binding | |
| EC Number | |
| Enzyme Function | FUNCTION: [Capsid protein C]: Plays a role in virus budding by binding to the cell membrane and gathering the viral RNA into a nucleocapsid that forms the core of a mature virus particle. During virus entry, may induce genome penetration into the host cytoplasm after hemifusion induced by the surface proteins. Can migrate to the cell nucleus where it modulates host functions. Overcomes the anti-viral effects of host EXOC1 by sequestering and degrading the latter through the proteasome degradation pathway. {ECO:0000250|UniProtKB:P17763}.; FUNCTION: [Capsid protein C]: Inhibits RNA silencing by interfering with host Dicer. {ECO:0000250|UniProtKB:P03314}.; FUNCTION: [Peptide pr]: Prevents premature fusion activity of envelope proteins in trans-Golgi by binding to envelope protein E at pH6.0. After virion release in extracellular space, gets dissociated from E dimers. {ECO:0000250|UniProtKB:P17763}.; FUNCTION: [Protein prM]: Acts as a chaperone for envelope protein E during intracellular virion assembly by masking and inactivating envelope protein E fusion peptide. prM is the only viral peptide matured by host furin in the trans-Golgi network probably to avoid catastrophic activation of the viral fusion activity in acidic GolGi compartment prior to virion release. prM-E cleavage is inefficient, and many virions are only partially matured. These uncleaved prM would play a role in immune evasion. {ECO:0000250|UniProtKB:P17763}.; FUNCTION: [Small envelope protein M]: May play a role in virus budding. Exerts cytotoxic effects by activating a mitochondrial apoptotic pathway through M ectodomain. May display a viroporin activity. {ECO:0000250|UniProtKB:P17763}.; FUNCTION: [Envelope protein E]: Binds to host cell surface receptor and mediates fusion between viral and cellular membranes. Envelope protein is synthesized in the endoplasmic reticulum in the form of heterodimer with protein prM. They play a role in virion budding in the ER, and the newly formed immature particle is covered with 60 spikes composed of heterodimer between precursor prM and envelope protein E. The virion is transported to the Golgi apparatus where the low pH causes dissociation of PrM-E heterodimers and formation of E homodimers. prM-E cleavage is inefficient, and many virions are only partially matured. These uncleaved prM would play a role in immune evasion. {ECO:0000250|UniProtKB:P17763}.; FUNCTION: [Non-structural protein 1]: Involved in immune evasion, pathogenesis and viral replication. Once cleaved off the polyprotein, is targeted to three destinations: the viral replication cycle, the plasma membrane and the extracellular compartment. Essential for viral replication. Required for formation of the replication complex and recruitment of other non-structural proteins to the ER-derived membrane structures. Excreted as a hexameric lipoparticle that plays a role against host immune response. Antagonizing the complement function. Binds to the host macrophages and dendritic cells. Inhibits signal transduction originating from Toll-like receptor 3 (TLR3). {ECO:0000250|UniProtKB:Q9Q6P4}.; FUNCTION: [Non-structural protein 1]: Disrupts the host endothelial glycocalyx layer of host pulmonary microvascular endothelial cells, inducing degradation of sialic acid and shedding of heparan sulfate proteoglycans. NS1 induces expression of sialidases, heparanase, and activates cathepsin L, which activates heparanase via enzymatic cleavage. These effects are probably linked to the endothelial hyperpermeability observed in severe dengue disease. {ECO:0000250|UniProtKB:P17763}. |
| Temperature Dependency | |
| PH Dependency | |
| Pathway | |
| nucleotide Binding | |
| Features | Chain (7); Disulfide bond (11); Glycosylation (5); Non-terminal residue (1); Propeptide (1); Region (3); Site (5); Topological domain (6); Transmembrane (5) |
| Keywords | Clathrin-mediated endocytosis of virus by host;Cleavage on pair of basic residues;Disulfide bond;Fusion of virus membrane with host endosomal membrane;Fusion of virus membrane with host membrane;Glycoprotein;Host cytoplasm;Host endoplasmic reticulum;Host membrane;Host nucleus;Host-virus interaction;Membrane;Secreted;Suppressor of RNA silencing;Transmembrane;Transmembrane helix;Viral attachment to host cell;Viral envelope protein;Viral nucleoprotein;Viral penetration into host cytoplasm;Virion;Virus endocytosis by host;Virus entry into host cell;Zinc |
| Interact With | |
| Induction | |
| Subcellular Location | SUBCELLULAR LOCATION: [Capsid protein C]: Virion {ECO:0000250|UniProtKB:P17763}. Host nucleus {ECO:0000250|UniProtKB:P17763}. Host cytoplasm {ECO:0000250|UniProtKB:P17763}. Host cytoplasm, host perinuclear region {ECO:0000250|UniProtKB:P17763}.; SUBCELLULAR LOCATION: [Peptide pr]: Secreted {ECO:0000250|UniProtKB:P17763}.; SUBCELLULAR LOCATION: [Small envelope protein M]: Virion membrane {ECO:0000250|UniProtKB:P17763}; Multi-pass membrane protein {ECO:0000255}. Host endoplasmic reticulum membrane {ECO:0000250|UniProtKB:P17763}; Multi-pass membrane protein {ECO:0000255}.; SUBCELLULAR LOCATION: [Envelope protein E]: Virion membrane {ECO:0000250|UniProtKB:P17763}; Multi-pass membrane protein {ECO:0000255}. Host endoplasmic reticulum membrane {ECO:0000250|UniProtKB:P17763}; Multi-pass membrane protein {ECO:0000255}.; SUBCELLULAR LOCATION: [Non-structural protein 1]: Secreted {ECO:0000250|UniProtKB:P17763}. Host endoplasmic reticulum membrane; Peripheral membrane protein; Lumenal side {ECO:0000250|UniProtKB:P17763}. Note=Located in RE-derived vesicles hosting the replication complex. {ECO:0000250|UniProtKB:Q9Q6P4}. |
| Modified Residue | |
| Post Translational Modification | PTM: [Genome polyprotein]: Specific enzymatic cleavages in vivo yield mature proteins. Cleavages in the lumen of endoplasmic reticulum are performed by host signal peptidase, wereas cleavages in the cytoplasmic side are performed by the Serine protease NS3. Signal cleavage at the 2K-4B site requires a prior NS3 protease-mediated cleavage at the 4A-2K site. {ECO:0000250|UniProtKB:P17763}.; PTM: [Protein prM]: Cleaved in post-Golgi vesicles by a host furin, releasing the mature small envelope protein M, and peptide pr. This cleavage is incomplete as up to 30% of viral particles still carry uncleaved prM. {ECO:0000250|UniProtKB:P17763}.; PTM: [Envelope protein E]: N-glycosylated. {ECO:0000250|UniProtKB:P17763}.; PTM: [Non-structural protein 1]: N-glycosylated. The excreted form is glycosylated and this is required for efficient secretion of the protein from infected cells. {ECO:0000250|UniProtKB:P17763}. |
| Signal Peptide | |
| Structure 3D | |
| Cross Reference PDB | - |
| Mapped Pubmed ID | - |
| Motif | |
| Gene Encoded By | |
| Mass | 125,835 |
| Kinetics | |
| Metal Binding | |
| Rhea ID | |
| Cross Reference Brenda |