Pre-protein VI - P03274 (CAP6_ADE02)


Protein Feature View of PDB entries mapped to a UniProtKB sequence  

  • Number of PDB entries for P03274: 4
Pre-protein VI: During virus assembly, promotes hexon trimers nuclear import through nuclear pore complexes via an importin alpha/beta-dependent mechanism. By analogy to herpesviruses capsid assembly, might act as a scaffold protein to promote the formation of the icosahedral capsid. (data source: UniProt  )
Endosome lysis protein: Structural component of the virion that provides increased stability to the particle shell through its interaction with the core-capsid bridging protein (By similarity). Fibers shedding during virus entry into host cell allows the endosome lysis protein to be exposed as a membrane-lytic peptide (PubMed:21843868). Exhibits pH-independent membrane fragmentation activity and probably mediates viral rapid escape from host endosome via organellar membrane lysis (By similarity). It is not clear if it then remains partially associated with the capsid and involved in the intracellular microtubule-dependent transport of capsid to the nucleus, or if it is lost during endosomal penetration. (data source: UniProt  )
Protease cofactor: Cofactor that activates the viral protease. Binds to viral protease in a 1:1 ratio. (data source: UniProt  )
Subunit structure
Pre-protein VI: Interacts with hexon protein; this interaction allows nuclear import of hexon trimers and possibly pre-capsid assembly (PubMed:7636476). Pre-protein VI: Interacts (via C-terminal NLS) with importin alpha/beta (By similarity). Endosome lysis protein: Interacts (via PPxY motif) with host NEDD4 ubiquitine ligase; this interaction might play a role in virus intracellular transport during entry (By similarity). Endosome lysis protein: Part of a complex composed of the core-capsid bridging protein, the endosome lysis protein VI and the hexon-linking protein VIII; these interactions bridge the virus core to the capsid (By similarity). Endosome lysis protein: Interacts with peripentonal hexons; this interaction stabilizes the capsid by gluing two peripentonal hexons together and joining them with an adjacent group-of-nine hexon (By similarity). Protease cofactor: Heterodimer with the viral protease; disulfide-linked (PubMed:8422686, PubMed:12069522). Interacts with the viral protease (PubMed:11591154, PubMed:8617222). (data source: UniProt  )
Late-budding domains (L domains) are short sequence motifs essential for viral particle release. They can occur individually or in close proximity within structural proteins. They interacts with sorting cellular proteins of the multivesicular body (MVB) pathway. Most of these proteins are class E vacuolar protein sorting factors belonging to ESCRT-I, ESCRT-II or ESCRT-III complexes. Minor capsid protein 6 contains one L domain: a PPXY motif which binds to the WW domains of HECT (homologous to E6-AP C-terminus) E3 ubiquitin ligases, like NEDD4. In adenoviruses, this motif seems to play a role in microtubule-dependent intracellular trafficking toward the nucleus during virus entry into host cell and in suppression of DAXX-mediated repression of the immediate early E1A promoter. (data source: UniProt  )
Other Gene name: L3
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