The following text describes a protein:
Function:
[Leader protein]: Forms a complex with host RAN and probably binds to exportins carrying activated MAPK in order to mediate the hyperphosphorylation of host Phe/Gly containing nuclear pore proteins (Nups) resulting in cessation of active nucleocytoplasmic transport (Probable). Proteins with NLS signals fail to import, cellular mRNAs fail to export, and some proteins small enough for diffusion are not retained anymore (efflux) (By similarity). The resulting inhibition of cellular protein synthesis serves to ensure maximal viral gene expression and to evade host immune response (By similarity). The leader protein also inhibits host interferon regulatory factor 3 (IRF3) dimerization, thereby blocking the transcriptional activation of IFN genes. Binds to host RNase L thereby preventing its activation by 2'-5' oligoadenylates in order to counteract the antiviral interferon-inducible OAS/RNase L pathway; [Capsid protein VP1]: Forms an icosahedral capsid of pseudo T=3 symmetry with capsid proteins VP2 and VP3. Together they form an icosahedral capsid composed of 60 copies of each VP1, VP2, and VP3, with a diameter of approximately 300 Angstroms. VP4 lies on the inner surface of the protein shell formed by VP1, VP2 and VP3. All the three latter proteins contain a beta-sheet structure called beta-barrel jelly roll. VP1 is situated at the 12 fivefold axes, whereas VP2 and VP3 are located at the quasi-sixfold axes; [Capsid protein VP2]: Forms an icosahedral capsid of pseudo T=3 symmetry with capsid proteins VP2 and VP3. Together they form an icosahedral capsid composed of 60 copies of each VP1, VP2, and VP3, with a diameter of approximately 300 Angstroms. VP4 lies on the inner surface of the protein shell formed by VP1, VP2 and VP3. All the three latter proteins contain a beta-sheet structure called beta-barrel jelly roll. VP1 is situated at the 12 fivefold axes, whereas VP2 and VP3 are located at the quasi-sixfold axes; [Capsid protein VP3]: Forms an icosahedral capsid of pseudo T=3 symmetry with capsid proteins VP2 and VP3. Together they form an icosahedral capsid composed of 60 copies of each VP1, VP2, and VP3, with a diameter of approximately 300 Angstroms. VP4 lies on the inner surface of the protein shell formed by VP1, VP2 and VP3. All the three latter proteins contain a beta-sheet structure called beta-barrel jelly roll. VP1 is situated at the 12 fivefold axes, whereas VP2 and VP3 are located at the quasi-sixfold axes; [Capsid protein VP4]: Lies on the inner surface of the capsid shell (By similarity). After binding to the host receptor, the capsid undergoes conformational changes (By similarity). Capsid protein VP4 is released, capsid protein VP1 N-terminus is externalized, and together, they shape a pore in the host membrane through which the viral genome is translocated into the host cell cytoplasm (By similarity). After genome has been released, the channel shrinks (By similarity); [Capsid protein VP0]: VP0 precursor is a component of immature procapsids; [Protein 2A]: Involved in host translation shutoff by inhibiting cap-dependent mRNA translation (By similarity). Nuclear localization is required for this function (By similarity). The resulting inhibition of cellular protein synthesis serves to ensure maximal viral gene expression and to evade host immune response (By similarity). Inhibits the phosphorylation of the leader protein (By similarity); [Protein 2B]: Affects membrane integrity and causes an increase in membrane permeability; [Protein 2C]: Associates with and induces structural rearrangements of intracellular membranes (By similarity). It displays RNA-binding, nucleotide binding and NTPase activities (By similarity); [Protein 3A]: Serves as membrane anchor via its hydrophobic domain; [VPg]: Forms a primer, VPg-pU, which is utilized by the polymerase for the initiation of RNA chains; [Protease 3C]: Cysteine protease that generates mature viral proteins from the precursor polyprotein (By similarity). In addition to its proteolytic activity, it binds to viral RNA, and thus influences viral genome replication. RNA and substrate cooperatively bind to the protease. Cleaves host PABP1, this cleavage is important for viral replication (By similarity); [RNA-directed RNA polymerase]: Replicates the genomic and antigenomic RNAs by recognizing replications specific signals (By similarity). Performs VPg uridylylation (By similarity).
Miscellaneous:
MISCELLANEOUS: Persistent strains of Theiler's virus (e.g. DA, TO, BeAn) cause persistent demyelinating disease whereas neurovirulent strains (such as GDVII) cause acute encephalitis.
Subcellular Localization:
[Capsid protein VP2]: Virion. Host cytoplasm; [Capsid protein VP3]: Virion. Host cytoplasm; [Capsid protein VP1]: Virion. Host cytoplasm; [Protein 2A]: Host nucleus, host nucleolus; [Protein 2B]: Host cytoplasmic vesicle membrane; Peripheral membrane protein; Cytoplasmic side. Note=Probably localizes to the surface of intracellular membrane vesicles that are induced after virus infection as the site for viral RNA replication. These vesicles are probably autophagosome-like vesicles; [Protein 2C]: Host cytoplasmic vesicle membrane; Peripheral membrane protein; Cytoplasmic side. Note=Probably localizes to the surface of intracellular membrane vesicles that are induced after virus infection as the site for viral RNA replication. These vesicles are probably autophagosome-like vesicles; [Protein 3A]: Host cytoplasmic vesicle membrane; Peripheral membrane protein; Cytoplasmic side. Note=Probably localizes to the surface of intracellular membrane vesicles that are induced after virus infection as the site for viral RNA replication. These vesicles are probably autophagosome-like vesicles; [VPg]: Virion; [Protease 3C]: Host cytoplasm; [RNA-directed RNA polymerase]: Host cytoplasmic vesicle membrane; Peripheral membrane protein; Cytoplasmic side. Note=Probably localizes to the surface of intracellular membrane vesicles that are induced after virus infection as the site for viral RNA replication. These vesicles are probably autophagosome-like vesicles.
Domain:
[Leader protein]: The Theilo and zinc-finger regions may both play a role in the inhibition of host nucleocytoplasmic trafficking and IRF-3 dimerization antagonism by the L protein.
Sequence:
MACKHGYPDVCPICTAVDVTPGFEYLLLADGEWFPTDLLCVDLDDDVFWPSNSSNQSETMEWTDLPLVRDIVMEPQGNASSSDKSNSQSSGNEGVIINNFYSNQYQNSIDLSASGGNAGDAPQNNGQLSNILGGAANAFATMAPLLLDQNTEEMENLSDRVASDKAGNSATNTQSTVGRLCGYGEAHHGEHPASCADTATDKVLAAERYYTIDLASWTTTQEAFSHIRIPLPHVLAGEDGGVFGATLRRHYLCKTGWRVQVQCNASQFHAGSLLVFMAPEFYTGKGTKTGDMEPTDPFTMDTTWRAPQGAPTGYRYDSRTGFFAMNHQNQWQWTVYPHQILNLRTNTTVDLEVPYVNIAPTSSWTQHANWTLVVAVFSPLQYASGSSSDVQITASIQPVNPVFNGLRHETVIAQSPIAVTVREHKGCFYSTNPDTTVPIYGKTISTPNDYMCGEFSDLLELCKLPTFLGNPNSNNKRYPYFSATNSVPTTSLVDYQVALSCSCMCNSMLAAVARNFNQYRGSLNFLFVFTGAAMVKGKFLIAYTPPGAGKPTTRDQAMQATYAIWDLGLNSSFVFTAPFISPTHYRQTSYTSATIASVDGWVTVWQLTPLTYPSGAPVNSDILTLVSAGDDFTLRMPISPTKWAPQGSDNAEKGKVSNDDASVDFVAEPVKLPENQTRVAFFYDRAVPIGMLRPGQNIESTFVYQENDLRLNCLLLTPLPSFCPDSTSGPVKTKAPVQWRWVRSGGTTNFPLMTKQDYAFLCFSPFTYYKCDLEVTVSALGTDTVASVLRWAPTGAPADVTDQLIGYTPSLGETRNPHMWLVGAGNTQISFVVPYNSPLSVLPAAWFNGWSDFGNTKDFGVAPNADFGRLWIQGNTSASVRIRYKKMKVFCPRPTLFFPWPVSTRSKINADNPVPILELENPAAFYRIDLFITFIDEFITFDYKVHGRPVLTFRIPGFGLTPAGRMLVCMGEKPAHGPFTSSRSLYHVIFTATCSSFSFSIYKGRYRSWKKPIHDELVDRGYTTFGEFFRAVRAYHADYYKQRLIHDVEMNPGPVQSVFQPQGAVLTKSLAPQAGIQNLLLRLLGIDGDCSEVSKAITVVTDLFAAWERAKTTLVSPEFWSKLILKTTKFIAASVLYLHNPDFTTTVCLSLMTGVDLLTNDSVFDWLKNKLSSFFRTPPPVCPNVLQPQGPLREANEGFTFAKNIEWAMKTIQSIVNWLTSWFKQEEDHPQSKLDKFLMEFPDHCRNIMDMRNGRKAYCECTASFKYFDELYNLAVTCKRIPLASLCEKFKNRHDHSVTRPEPVVVVLRGAAGQGKSVTSQIIAQSVSKMAFGRQSVYSMPPDSEYFDGYENQFSVIMDDLGQNPDGEDFTVFCQMVSSTNFLPNMAHLERKGTPFTSSFIVATTNLPKFRPVTVAHYPAVDRRITFDFTVTAGPHCTTSNGMLDIEKAFDEIPGSKPQLACFSADCPLLHKRGVMFTCNRTKAVYNLQQVVKMVNDTITRKTENVKKMNSLVAQSPPDWEHFENILTCLRQNNAALQDQLDELQEAFAQARERSDFLSDWLKVSAIIFAGIASLSAVIKLASKFKESIWPSPVRVELSEGEQAAYAGRARAQKQALQVLDIQGGGKVLAQAGNPVMDFELFCAKNMVAPITFYYPDKAEVTQSCLLLRAHLFVVNRHVAETEWTAFKLKDVRHERDTVVTRSVNRSGAETDLTFIKVTKGPLFKDNVNKFCSNKDDFPARNDAVTGIMNTGLAFVYSGNFLIGNQPVNTTTGACFNHCLHYRAQTRRGWCGSAVICNVNGKKAVYGMHSAGGGGLAAATIITRELIEAAEKSMLALEPQGAIVDISTGSVVHVPRKTKLRRTVAHDVFQPKFEPAVLSRYDPRTDKDVDVVAFSKHTTNMESLPPVFDIVCDEYANRVFTILGKDNGLLTVEQAVLGLPGMDPMEKDTSPGLPYTQQGLRRTDLLNFNTAKMTPQLDYAHSKLVLGVYDDVVYQSFLKDEIRPLEKIHEAKTRIVDVPPFAHCIWGRQLLGRFASKFQTKPGLELGSAIGTDPDVDWTPYAAELSGFNYVYDVDYSNFDASHSTAMFECLIKNFFTEQNGFDRRIAEYLRSLAVSRHAYEDRRVLIRGGLLSGCAATSMLNTIMNNVIIRAALYLTYSNFEFDDIKVLSYGDDLLIGTNYQIDFNLVKERLAPFGYKITPANKTTTFPLTSHLQDVTFLKRRFVRFNSYLFRPQMDAVNLKAMVSYCKPGTLKEKLMSIALLAVHSGPDIYDEIFLPFRNVGIVVPTYSSMLYRWLSLFR