Reviewed,
UniProtKB/Swiss-Prot P29991 (POLG_DEN27)
Last modified
June 16, 2009.
Version 84.
History...
Clusters with 100%,
90%,
50% identity |
Documents (3) |
Third-party data |
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Names and origin
| Protein names | Recommended name: Genome polyprotein Cleaved into the following 14 chains: 1- Recommended name: Protein C Alternative name(s): Core protein Capsid protein 2- Recommended name: prM 3- Recommended name: Peptide pr 4- Recommended name: Small envelope protein M Alternative name(s): Matrix protein 5- Recommended name: Envelope protein E 6- Recommended name: Non-structural protein 1 Short name=NS1 7- Recommended name: Non-structural protein 2A Short name=NS2A 8- Recommended name: Non-structural protein 2A-alpha Short name=NS2A-alpha 9- Recommended name: Serine protease subunit NS2B Alternative name(s): Non-structural protein 2B 10- Recommended name: Serine protease subunit NS3 EC=3.4.21.91 Alternative name(s): Non-structural protein 3 11- Recommended name: Non-structural protein 4A Short name=NS4A 12- Recommended name: Peptide 2k 13- Recommended name: Non-structural protein 4B Short name=NS4B 14- Recommended name: RNA-directed RNA polymerase NS5 EC=2.7.7.48 EC=2.1.1.56 Alternative name(s): Non-structural protein 5 |
| Organism | Dengue virus type 2 (strain 16681-PDK53) (DENV-2) [Complete proteome] |
| Taxonomic identifier | 31635 [NCBI] |
| Taxonomic lineage | Viruses › ssRNA positive-strand viruses, no DNA stage › Flaviviridae › Flavivirus › Dengue virus group |
| Virus host | Aedes aegypti (Yellowfever mosquito) (Culex aegypti) [TaxID: 7159] Erythrocebus patas (Red guenon) (Cercopithecus patas) [TaxID: 9538] Homo sapiens (Human) [TaxID: 9606] Aedes furcifer (Mosquito) [TaxID: 299627] Aedes taylori (Mosquito) [TaxID: 299628] |
Protein attributes
| Sequence length | 3391 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is further processed into a mature form. |
| Protein existence | Evidence at protein level. |
General annotation (Comments)
| Function | Protein C packages viral RNA to form a viral nucleocapsid, and promotes virion budding By similarity. prM acts as a chaperone for envelope protein E during intracellular virion assembly by masking and inactivating envelope protein E fusion peptide. prM is matured in the last step of virion assembly, presumably to avoid catastrophic activation of the viral fusion peptide induced by the acidic pH of the trans-Golgi network. After cleavage by host furin, the pr peptide is released in the extracellular medium and small envelope protein M and envelope protein E homodimers are dissociated By similarity. Envelope protein E binds cell surface receptor and is involved in membrane fusion between virion and target cell. Synthesized as an homodimer with prM which acts as a chaperone for envelope protein E. After cleavage of prM, envelope protein E dissociate from small envelope protein M and homodimerizes By similarity. Non-structural protein 1 is slowly secreted from mammalian cells, but not from mosquito cells. Secreted form elicits protective immune response and plays an essential role in RNA replication. Soluble and membrane-associated NS1 may activate human complement and induce host vascular leakage. This effect might explain the clinical manifestations of dengue hemorrhagic fever and dengue shock syndrome By similarity. Non-structural protein 2B is a required cofactor for the serine protease function of NS3 By similarity. Serine protease NS3 displays three enzymatic activities: serine protease, NTPase and RNA helicase. NS3 serine protease, in association with NS2B, cleaves the polyprotein at dibasic sites in the cytoplasm: C-prM, NS2A-NS2B, NS2B-NS3, NS3-NS4A, NS4A-2K and NS4B-NS5. NS3 RNA helicase binds RNA and unwinds dsRNA in the 3' to 5' direction By similarity. Non-structural protein 4A plays a role in RNA replication. Enhances inhibition of cell antiviral response by non-structural protein 4B By similarity. Non-structural protein 4B prevent the establishment of cellular antiviral state by blocking the interferon-alpha/beta (IFN-alpha/beta) and IFN-gamma signaling pathways By similarity. RNA-directed RNA polymerase NS5 replicates the viral (+) and (-) genome, and assure the capping of genomes in the cytoplasm. May be involved in methylation of 5'RNA cap structure By similarity. |
| Catalytic activity | Selective hydrolysis of -Xaa-Xaa-|-Yaa- bonds in which each of the Xaa can be either Arg or Lys and Yaa can be either Ser or Ala. Nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1). S-adenosyl-L-methionine + G(5')pppR-RNA = S-adenosyl-L-homocysteine + m7G(5')pppR-RNA. |
| Subunit structure | prM and envelope protein E form heterodimers in the endoplasmic reticulum and Golgi. Envelope protein E forms homodimers. NS1 forms homodimers as well as homohexamers when secreted. NS1 may interact with NS4A. NS3 and NS2B form an heterodimer. NS3 interacts with unphosphorylated NS5 By similarity. |
| Subcellular location | Protein C: Virion By similarity. Peptide pr: Secreted By similarity. Small envelope protein M: Virion membrane; Single-pass type I membrane protein By similarity. Envelope protein E: Virion membrane; Single-pass type I membrane protein By similarity. Non-structural protein 1: Secreted. Host endoplasmic reticulum membrane; Peripheral membrane protein; Lumenal side By similarity. Non-structural protein 2A-alpha: Host endoplasmic reticulum membrane By similarity. Non-structural protein 2A: Host endoplasmic reticulum membrane By similarity. Serine protease subunit NS2B: Host endoplasmic reticulum membrane; Peripheral membrane protein; Cytoplasmic side By similarity. Serine protease subunit NS3: Host endoplasmic reticulum membrane; Peripheral membrane protein; Cytoplasmic side By similarity. Non-structural protein 4A: Host endoplasmic reticulum membrane; Peripheral membrane protein; Cytoplasmic side By similarity. Non-structural protein 4B: Host endoplasmic reticulum membrane; Multi-pass membrane protein By similarity. Note: The C-terminal transmembrane domain of non-structural protein 4B is presumably reoriented after cleavage on the lumenal side By similarity. RNA-directed RNA polymerase NS5: Host endoplasmic reticulum membrane; Peripheral membrane protein; Cytoplasmic side. Host nucleus By similarity. |
| Domain | Transmembrane domains of the small envelope protein M and envelope protein E contains an endoplasmic reticulum retention signals By similarity. |
| Post-translational modification | Specific enzymatic cleavages in vivo yield mature proteins. The nascent protein C contains a C-terminal hydrophobic domain that act as a signal sequence for translocation of prM into the lumen of the ER. Mature protein C is cleaved at a site upstream of this hydrophobic domain by NS3. prM is cleaved in post-Golgi vesicles by a host furin, releasing the mature small envelope protein M, and peptide pr. Non-structural protein 2A-alpha, a C-terminally truncated form of non-structural protein 2A, results from partial cleavage by NS3 By similarity. RNA-directed RNA polymerase NS5 is phosphorylated on serines residues. This phosphorylation may trigger NS5 nuclear localization By similarity. Envelope protein E and non-structural protein 1 are N-glycosylated By similarity. |
| Miscellaneous | The virion is assembled in the endoplasmic reticulum lumen, transported by vesicles to the Golgi, then transported again to the cell membrane where it is released outside the cell. |
| Sequence similarities | Contains 1 helicase ATP-binding domain. Contains 1 helicase C-terminal domain. Contains 1 peptidase S7 domain. Contains 1 RdRp catalytic domain. |
Ontologies
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||||
Molecule processing | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 100 | 100 | Protein C By similarity | PRO_0000037936 | |||||||
| Propeptide | 101 – 114 | 14 | ER anchor for the protein C, removed in mature form by serine protease NS3 By similarity | PRO_0000037937 | |||||||
| Chain | 115 – 280 | 166 | prM By similarity | PRO_0000308279 | |||||||
| Chain | 115 – 205 | 91 | Peptide pr By similarity | PRO_0000308280 | |||||||
| Chain | 206 – 280 | 75 | Small envelope protein M By similarity | PRO_0000037938 | |||||||
| Chain | 281 – 775 | 495 | Envelope protein E By similarity | PRO_0000037939 | |||||||
| Chain | 776 – 1127 | 352 | Non-structural protein 1 By similarity | PRO_0000037940 | |||||||
| Chain | 1128 – 1345 | 218 | Non-structural protein 2A By similarity | PRO_0000037941 | |||||||
| Chain | 1128 – 1315 | 188 | Non-structural protein 2A-alpha By similarity | PRO_0000037942 | |||||||
| Chain | 1346 – 1475 | 130 | Serine protease subunit NS2B By similarity | PRO_0000037943 | |||||||
| Chain | 1476 – 2093 | 618 | Serine protease subunit NS3 By similarity | PRO_0000308465 | |||||||
| Chain | 2094 – 2220 | 127 | Non-structural protein 4A By similarity | PRO_0000037944 | |||||||
| Peptide | 2221 – 2243 | 23 | Peptide 2k By similarity | PRO_0000308281 | |||||||
| Chain | 2244 – 2491 | 248 | Non-structural protein 4B By similarity | PRO_0000037945 | |||||||
| Chain | 2492 – 3391 | 900 | RNA-directed RNA polymerase NS5 By similarity | PRO_0000037946 | |||||||
Regions | |||||||||||
| Topological domain | 1 – 101 | 101 | Cytoplasmic Potential | ||||||||
| Transmembrane | 102 – 122 | 21 | Potential | ||||||||
| Topological domain | 123 – 238 | 116 | Extracellular Potential | ||||||||
| Transmembrane | 239 – 259 | 21 | Potential | ||||||||
| Topological domain | 260 – 265 | 6 | Cytoplasmic Potential | ||||||||
| Transmembrane | 266 – 286 | 21 | Potential | ||||||||
| Topological domain | 287 – 725 | 439 | Extracellular Potential | ||||||||
| Transmembrane | 726 – 746 | 21 | Potential | ||||||||
| Topological domain | 747 – 752 | 6 | Cytoplasmic Potential | ||||||||
| Transmembrane | 753 – 773 | 21 | Potential | ||||||||
| Topological domain | 774 – 1156 | 383 | Extracellular Potential | ||||||||
| Transmembrane | 1157 – 1177 | 21 | Potential | ||||||||
| Topological domain | 1178 – 1447 | 270 | Cytoplasmic Potential | ||||||||
| Transmembrane | 1448 – 1468 | 21 | Potential | ||||||||
| Topological domain | 1469 – 2192 | 724 | Lumenal Potential | ||||||||
| Transmembrane | 2193 – 2213 | 21 | Potential | ||||||||
| Topological domain | 2214 – 2220 | 7 | Cytoplasmic Potential | ||||||||
| Transmembrane | 2221 – 2240 | 20 | Potential | ||||||||
| Transmembrane | 2348 – 2368 | 21 | Potential | ||||||||
| Topological domain | 2369 – 2413 | 45 | Cytoplasmic Potential | ||||||||
| Transmembrane | 2414 – 2434 | 21 | Potential | ||||||||
| Topological domain | 2435 – 2459 | 25 | Lumenal Potential | ||||||||
| Transmembrane | 2460 – 2480 | 21 | Potential | ||||||||
| Topological domain | 2481 – 3391 | 911 | Cytoplasmic Potential | ||||||||
| Domain | 1655 – 1811 | 157 | Helicase ATP-binding | ||||||||
| Domain | 1821 – 1988 | 168 | Helicase C-terminal | ||||||||
| Domain | 3020 – 3169 | 150 | RdRp catalytic | ||||||||
| Nucleotide binding | 1668 – 1675 | 8 | ATP Potential | ||||||||
| Motif | 1759 – 1762 | 4 | DEAH box By similarity | ||||||||
Sites | |||||||||||
| Active site | 1526 | 1 | Charge relay system; for serine protease NS3 activity By similarity | ||||||||
| Active site | 1550 | 1 | Charge relay system; for serine protease NS3 activity By similarity | ||||||||
| Active site | 1610 | 1 | Charge relay system; for serine protease NS3 activity By similarity | ||||||||
| Site | 100 – 101 | 2 | Cleavage; by serine protease NS3 By similarity | ||||||||
| Site | 114 – 115 | 2 | Cleavage; by host signal peptidase By similarity | ||||||||
| Site | 205 – 206 | 2 | Cleavage; by host furin By similarity | ||||||||
| Site | 280 – 281 | 2 | Cleavage; by host signal peptidase By similarity | ||||||||
| Site | 775 – 776 | 2 | Cleavage; by host signal peptidase By similarity | ||||||||
| Site | 1127 – 1128 | 2 | Cleavage; by host By similarity | ||||||||
| Site | 1315 – 1316 | 2 | Cleavage; by serine protease NS3 By similarity | ||||||||
| Site | 1345 – 1346 | 2 | Cleavage; by serine protease NS3 By similarity | ||||||||
| Site | 1475 – 1476 | 2 | Cleavage; by serine protease NS3 By similarity | ||||||||
| Site | 2093 – 2094 | 2 | Cleavage; by serine protease NS3 By similarity | ||||||||
| Site | 2220 – 2221 | 2 | Cleavage; by host signal peptidase By similarity | ||||||||
| Site | 2243 – 2244 | 2 | Cleavage; by serine protease NS3 By similarity | ||||||||
| Site | 2491 – 2492 | 2 | Cleavage; by serine protease NS3 By similarity | ||||||||
Amino acid modifications | |||||||||||
| Glycosylation | 183 | 1 | N-linked (GlcNAc...); by host Potential | ||||||||
| Glycosylation | 347 | 1 | N-linked (GlcNAc...); by host Potential | ||||||||
| Glycosylation | 433 | 1 | N-linked (GlcNAc...); by host Potential | ||||||||
| Glycosylation | 905 | 1 | N-linked (GlcNAc...); by host Potential | ||||||||
| Glycosylation | 982 | 1 | N-linked (GlcNAc...); by host Potential | ||||||||
| Glycosylation | 1134 | 1 | N-linked (GlcNAc...); by host Potential | ||||||||
| Glycosylation | 2301 | 1 | N-linked (GlcNAc...); by host Potential | ||||||||
| Glycosylation | 2305 | 1 | N-linked (GlcNAc...); by host Potential | ||||||||
| Glycosylation | 2457 | 1 | N-linked (GlcNAc...); by host Potential | ||||||||
| Disulfide bond | 283 ↔ 310 | By similarity | |||||||||
| Disulfide bond | 340 ↔ 401 | By similarity | |||||||||
| Disulfide bond | 354 ↔ 385 | By similarity | |||||||||
| Disulfide bond | 372 ↔ 396 | By similarity | |||||||||
| Disulfide bond | 465 ↔ 565 | By similarity | |||||||||
| Disulfide bond | 582 ↔ 613 | By similarity | |||||||||
Sequences
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References
| [1] | "Comparison of a dengue-2 virus and its candidate vaccine derivative: sequence relationships with the flaviviruses and other viruses." Blok J., McWilliam S.M., Butler H.C., Gibbs A.J., Weiller G., Herring B.L., Hemsley A.C., Aaskov J.G., Yoksan S., Bhamarapravati N. Virology 187:573-590(1992) [PubMed: 1312269] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC RNA]. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M84728 Genomic RNA. Translation: AAA73186.1. M84727 Genomic RNA. No translation available. | |||||||||||||||||||
| PIR | GNWV26. B42451. | ||||||||||||||||||
3D structure databases | |||||||||||||||||||
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| ModBase | Search... | ||||||||||||||||||
Family and domain databases | |||||||||||||||||||
| InterPro | IPR014001. DEAD-like_N. IPR011492. DEAD_Flavivir. IPR001650. DNA/RNA_helicase_C. IPR002464. DNA/RNA_helicase_DEAH_CS. IPR000069. Env_glycoprot_M_flavivir. IPR011999. Flav_glyE_cen_dm. IPR013754. Flav_glyE_dim. IPR001122. Flavi_capsidC. IPR001157. Flavi_NS1. IPR000752. Flavi_NS2A. IPR000487. Flavi_NS2B. IPR000404. Flavi_NS4A. IPR001528. Flavi_NS4B. IPR002535. Flavi_propep. IPR000336. Flv_glyE_Ig-like. IPR014412. Gen_Poly_FLV. IPR014021. Helicase_SF1/SF2_ATP-bd. IPR001850. Peptidase_S7. IPR000208. RNA_pol_flaviviral. IPR007094. RNA_pol_PSvir. IPR002877. rRNA_MeTrfase_RrmJ/FtsJ. [Graphical view] | ||||||||||||||||||
| Gene3D | G3DSA:2.60.98.10. Flav_glyE_dim. 1 hit. G3DSA:2.60.40.350. Flv_glyE_Ig-like. 1 hit. | ||||||||||||||||||
| Pfam | PF01003. Flavi_capsid. 1 hit. PF07652. Flavi_DEAD. 1 hit. PF02832. Flavi_glycop_C. 1 hit. PF00869. Flavi_glycoprot. 1 hit. PF01004. Flavi_M. 1 hit. PF00948. Flavi_NS1. 1 hit. PF01005. Flavi_NS2A. 1 hit. PF01002. Flavi_NS2B. 1 hit. PF01350. Flavi_NS4A. 1 hit. PF01349. Flavi_NS4B. 1 hit. PF00972. Flavi_NS5. 1 hit. PF01570. Flavi_propep. 1 hit. PF01728. FtsJ. 1 hit. PF00949. Peptidase_S7. 1 hit. [Graphical view] | ||||||||||||||||||
| PIRSF | PIRSF003817. Gen_Poly_FLV. 1 hit. | ||||||||||||||||||
| ProDom | PD001496. Flavi_NS1. 1 hit. [Graphical view] [Entries sharing at least one domain] | ||||||||||||||||||
| SMART | SM00487. DEXDc. 1 hit. SM00490. HELICc. 1 hit. [Graphical view] | ||||||||||||||||||
| PROSITE | PS00690. DEAH_ATP_HELICASE. False negative. PS51192. HELICASE_ATP_BIND_1. 1 hit. PS51194. HELICASE_CTER. False negative. PS50507. RDRP_SSRNA_POS. 1 hit. [Graphical view] | ||||||||||||||||||
| ProtoNet | Search... | ||||||||||||||||||
Entry information
| Entry name | POLG_DEN27 | ||||||||
| Accession | Primary (citable) accession number: P29991 | ||||||||
| Entry history |
| ||||||||
| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation project | Virus (Virus annotation project) | ||||||||
Relevant documents
| PDB cross-references Index of Protein Data Bank (PDB) cross-references |
| Peptidase families Classification of peptidase families and list of entries |
| SIMILARITY comments Index of protein domains and families |

Clusters with


