ID   POLG_EC09B              Reviewed;        2203 AA.
AC   Q66577;
DT   15-JUL-1999, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 3.
DT   24-JAN-2024, entry version 176.
DE   RecName: Full=Genome polyprotein;
DE   Contains:
DE     RecName: Full=P1;
DE   Contains:
DE     RecName: Full=Capsid protein VP0;
DE     AltName: Full=VP4-VP2;
DE   Contains:
DE     RecName: Full=Capsid protein VP4;
DE     AltName: Full=P1A;
DE     AltName: Full=Virion protein 4;
DE   Contains:
DE     RecName: Full=Capsid protein VP2;
DE     AltName: Full=P1B;
DE     AltName: Full=Virion protein 2;
DE   Contains:
DE     RecName: Full=Capsid protein VP3;
DE     AltName: Full=P1C;
DE     AltName: Full=Virion protein 3;
DE   Contains:
DE     RecName: Full=Capsid protein VP1;
DE     AltName: Full=P1D;
DE     AltName: Full=Virion protein 1;
DE   Contains:
DE     RecName: Full=P2;
DE   Contains:
DE     RecName: Full=Protease 2A;
DE              Short=P2A;
DE              EC=3.4.22.29 {ECO:0000250|UniProtKB:P03300};
DE     AltName: Full=Picornain 2A;
DE     AltName: Full=Protein 2A;
DE   Contains:
DE     RecName: Full=Protein 2B;
DE              Short=P2B;
DE   Contains:
DE     RecName: Full=Protein 2C;
DE              Short=P2C;
DE              EC=3.6.1.15 {ECO:0000250|UniProtKB:P03300};
DE   Contains:
DE     RecName: Full=P3;
DE   Contains:
DE     RecName: Full=Protein 3AB;
DE   Contains:
DE     RecName: Full=Protein 3A;
DE              Short=P3A;
DE   Contains:
DE     RecName: Full=Viral protein genome-linked;
DE              Short=VPg;
DE     AltName: Full=Protein 3B;
DE              Short=P3B;
DE   Contains:
DE     RecName: Full=Protein 3CD;
DE              EC=3.4.22.28;
DE   Contains:
DE     RecName: Full=Protease 3C {ECO:0000255|PROSITE-ProRule:PRU01222};
DE              EC=3.4.22.28 {ECO:0000255|PROSITE-ProRule:PRU01222};
DE     AltName: Full=Picornain 3C {ECO:0000255|PROSITE-ProRule:PRU01222};
DE              Short=P3C {ECO:0000255|PROSITE-ProRule:PRU01222};
DE   Contains:
DE     RecName: Full=RNA-directed RNA polymerase {ECO:0000255|PROSITE-ProRule:PRU00539};
DE              Short=RdRp;
DE              EC=2.7.7.48 {ECO:0000255|PROSITE-ProRule:PRU00539};
DE     AltName: Full=3D polymerase;
DE              Short=3Dpol;
DE     AltName: Full=Protein 3D;
DE              Short=3D;
OS   Echovirus 9 (strain Barty).
OC   Viruses; Riboviria; Orthornavirae; Pisuviricota; Pisoniviricetes;
OC   Picornavirales; Picornaviridae; Ensavirinae; Enterovirus; Enterovirus B.
OX   NCBI_TaxID=103914;
OH   NCBI_TaxID=9606; Homo sapiens (Human).
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC RNA].
RX   PubMed=8879131; DOI=10.1007/bf00572953;
RA   Zimmermann H., Eggers H.J., Nelsen-Salz B.;
RT   "Molecular cloning and sequence determination of the complete genome of the
RT   virulent echovirus 9 strain Barty.";
RL   Virus Genes 12:149-154(1996).
CC   -!- FUNCTION: [Capsid protein VP1]: Forms an icosahedral capsid of pseudo
CC       T=3 symmetry with capsid proteins VP2 and VP3 (By similarity). The
CC       capsid is 300 Angstroms in diameter, composed of 60 copies of each
CC       capsid protein and enclosing the viral positive strand RNA genome (By
CC       similarity). Capsid protein VP1 mainly forms the vertices of the capsid
CC       (By similarity). Capsid protein VP1 interacts with host cell receptor
CC       to provide virion attachment to target host cells (By similarity). This
CC       attachment induces virion internalization (By similarity). Tyrosine
CC       kinases are probably involved in the entry process (By similarity).
CC       After binding to its receptor, the capsid undergoes conformational
CC       changes (By similarity). Capsid protein VP1 N-terminus (that contains
CC       an amphipathic alpha-helix) and capsid protein VP4 are externalized (By
CC       similarity). Together, they shape a pore in the host membrane through
CC       which viral genome is translocated to host cell cytoplasm (By
CC       similarity). {ECO:0000250|UniProtKB:P03300}.
CC   -!- FUNCTION: [Capsid protein VP2]: Forms an icosahedral capsid of pseudo
CC       T=3 symmetry with capsid proteins VP2 and VP3 (By similarity). The
CC       capsid is 300 Angstroms in diameter, composed of 60 copies of each
CC       capsid protein and enclosing the viral positive strand RNA genome (By
CC       similarity). {ECO:0000250|UniProtKB:P03300}.
CC   -!- FUNCTION: [Capsid protein VP3]: Forms an icosahedral capsid of pseudo
CC       T=3 symmetry with capsid proteins VP2 and VP3 (By similarity). The
CC       capsid is 300 Angstroms in diameter, composed of 60 copies of each
CC       capsid protein and enclosing the viral positive strand RNA genome (By
CC       similarity). {ECO:0000250|UniProtKB:P03300}.
CC   -!- FUNCTION: [Capsid protein VP4]: Lies on the inner surface of the capsid
CC       shell (By similarity). After binding to the host receptor, the capsid
CC       undergoes conformational changes (By similarity). Capsid protein VP4 is
CC       released, Capsid protein VP1 N-terminus is externalized, and together,
CC       they shape a pore in the host membrane through which the viral genome
CC       is translocated into the host cell cytoplasm (By similarity).
CC       {ECO:0000250|UniProtKB:P03300}.
CC   -!- FUNCTION: [Capsid protein VP0]: Component of immature procapsids, which
CC       is cleaved into capsid proteins VP4 and VP2 after maturation (By
CC       similarity). Allows the capsid to remain inactive before the maturation
CC       step (By similarity). {ECO:0000250|UniProtKB:P03300}.
CC   -!- FUNCTION: [Protease 2A]: Cysteine protease that cleaves viral
CC       polyprotein and specific host proteins (By similarity). It is
CC       responsible for the autocatalytic cleavage between the P1 and P2
CC       regions, which is the first cleavage occurring in the polyprotein (By
CC       similarity). Cleaves also the host translation initiation factor
CC       EIF4G1, in order to shut down the capped cellular mRNA translation (By
CC       similarity). Inhibits the host nucleus-cytoplasm protein and RNA
CC       trafficking by cleaving host members of the nuclear pores (By
CC       similarity). Counteracts stress granule formation probably by
CC       antagonizing its assembly or promoting its dissassembly (By
CC       similarity). {ECO:0000250|UniProtKB:P03300,
CC       ECO:0000250|UniProtKB:P03301}.
CC   -!- FUNCTION: [Protein 2B]: Plays an essential role in the virus
CC       replication cycle by acting as a viroporin. Creates a pore in the host
CC       reticulum endoplasmic and as a consequence releases Ca2+ in the
CC       cytoplasm of infected cell. In turn, high levels of cytoplasmic calcium
CC       may trigger membrane trafficking and transport of viral ER-associated
CC       proteins to viroplasms, sites of viral genome replication.
CC       {ECO:0000250|UniProtKB:P03300}.
CC   -!- FUNCTION: [Protein 2C]: Induces and associates with structural
CC       rearrangements of intracellular membranes. Displays RNA-binding,
CC       nucleotide binding and NTPase activities. May play a role in virion
CC       morphogenesis and viral RNA encapsidation by interacting with the
CC       capsid protein VP3. {ECO:0000250|UniProtKB:P03300}.
CC   -!- FUNCTION: [Protein 3AB]: Localizes the viral replication complex to the
CC       surface of membranous vesicles. Together with protein 3CD binds the
CC       Cis-Active RNA Element (CRE) which is involved in RNA synthesis
CC       initiation. Acts as a cofactor to stimulate the activity of 3D
CC       polymerase, maybe through a nucleid acid chaperone activity.
CC       {ECO:0000250|UniProtKB:P03300}.
CC   -!- FUNCTION: [Protein 3A]: Localizes the viral replication complex to the
CC       surface of membranous vesicles (By similarity). It inhibits host cell
CC       endoplasmic reticulum-to-Golgi apparatus transport and causes the
CC       disassembly of the Golgi complex, possibly through GBF1 interaction (By
CC       similarity). This would result in depletion of MHC, trail receptors and
CC       IFN receptors at the host cell surface (By similarity). Plays an
CC       essential role in viral RNA replication by recruiting ACBD3 and PI4KB
CC       at the viral replication sites, thereby allowing the formation of the
CC       rearranged membranous structures where viral replication takes place
CC       (By similarity). {ECO:0000250|UniProtKB:P03300}.
CC   -!- FUNCTION: [Viral protein genome-linked]: Acts as a primer for viral RNA
CC       replication and remains covalently bound to viral genomic RNA. VPg is
CC       uridylylated prior to priming replication into VPg-pUpU (By
CC       similarity). The oriI viral genomic sequence may act as a template for
CC       this. The VPg-pUpU is then used as primer on the genomic RNA poly(A) by
CC       the RNA-dependent RNA polymerase to replicate the viral genome (By
CC       similarity). Following genome release from the infecting virion in the
CC       cytoplasm, the VPg-RNA linkage is probably removed by host TDP2 (By
CC       similarity). During the late stage of the replication cycle, host TDP2
CC       is excluded from sites of viral RNA synthesis and encapsidation,
CC       allowing for the generation of progeny virions (By similarity).
CC       {ECO:0000250|UniProtKB:P03300}.
CC   -!- FUNCTION: [Protein 3CD]: Involved in the viral replication complex and
CC       viral polypeptide maturation. It exhibits protease activity with a
CC       specificity and catalytic efficiency that is different from protease
CC       3C. Protein 3CD lacks polymerase activity. Protein 3CD binds to the
CC       5'UTR of the viral genome. {ECO:0000250|UniProtKB:P03300}.
CC   -!- FUNCTION: [RNA-directed RNA polymerase]: Replicates the viral genomic
CC       RNA on the surface of intracellular membranes. May form linear arrays
CC       of subunits that propagate along a strong head-to-tail interaction
CC       called interface-I. Covalently attaches UMP to a tyrosine of VPg, which
CC       is used to prime RNA synthesis. The positive stranded RNA genome is
CC       first replicated at virus induced membranous vesicles, creating a dsRNA
CC       genomic replication form. This dsRNA is then used as template to
CC       synthesize positive stranded RNA genomes. ss(+)RNA genomes are either
CC       translated, replicated or encapsidated. {ECO:0000250|UniProtKB:P03300}.
CC   -!- FUNCTION: [Protease 3C]: Major viral protease that mediates proteolytic
CC       processing of the polyprotein (By similarity). Cleaves host EIF5B,
CC       contributing to host translation shutoff (By similarity). Cleaves also
CC       host PABPC1, contributing to host translation shutoff (By similarity).
CC       Cleaves host NLRP1, triggers host N-glycine-mediated degradation of the
CC       autoinhibitory NLRP1 N-terminal fragment (By similarity).
CC       {ECO:0000250|UniProtKB:P03300, ECO:0000250|UniProtKB:P03303}.
CC   -!- CATALYTIC ACTIVITY: [Protein 2C]:
CC       Reaction=a ribonucleoside 5'-triphosphate + H2O = a ribonucleoside 5'-
CC         diphosphate + H(+) + phosphate; Xref=Rhea:RHEA:23680,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:43474,
CC         ChEBI:CHEBI:57930, ChEBI:CHEBI:61557; EC=3.6.1.15;
CC         Evidence={ECO:0000250|UniProtKB:P03300};
CC   -!- CATALYTIC ACTIVITY: [Protease 2A]:
CC       Reaction=Selective cleavage of Tyr-|-Gly bond in the picornavirus
CC         polyprotein.; EC=3.4.22.29; Evidence={ECO:0000250|UniProtKB:P03300};
CC   -!- CATALYTIC ACTIVITY: [RNA-directed RNA polymerase]:
CC       Reaction=a ribonucleoside 5'-triphosphate + RNA(n) = diphosphate +
CC         RNA(n+1); Xref=Rhea:RHEA:21248, Rhea:RHEA-COMP:14527, Rhea:RHEA-
CC         COMP:17342, ChEBI:CHEBI:33019, ChEBI:CHEBI:61557, ChEBI:CHEBI:140395;
CC         EC=2.7.7.48; Evidence={ECO:0000255|PROSITE-ProRule:PRU00539};
CC   -!- CATALYTIC ACTIVITY: [Protease 3C]:
CC       Reaction=Selective cleavage of Gln-|-Gly bond in the poliovirus
CC         polyprotein. In other picornavirus reactions Glu may be substituted
CC         for Gln, and Ser or Thr for Gly.; EC=3.4.22.28;
CC         Evidence={ECO:0000255|PROSITE-ProRule:PRU01222};
CC   -!- COFACTOR: [RNA-directed RNA polymerase]:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000250|UniProtKB:P03300};
CC       Note=Binds 2 magnesium ions that constitute a dinuclear catalytic metal
CC       center (By similarity). The magnesium ions are not prebound but only
CC       present for catalysis (By similarity). Requires the presence of 3CDpro
CC       or 3CPro (By similarity). {ECO:0000250|UniProtKB:P03300,
CC       ECO:0000250|UniProtKB:P03313};
CC   -!- ACTIVITY REGULATION: [RNA-directed RNA polymerase]: Replication or
CC       transcription is subject to high level of random mutations by the
CC       nucleotide analog ribavirin. {ECO:0000250|UniProtKB:P03300}.
CC   -!- SUBUNIT: [Capsid protein VP0]: Interacts with capsid protein VP1 and
CC       capsid protein VP3 to form heterotrimeric protomers.
CC       {ECO:0000250|UniProtKB:P03300}.
CC   -!- SUBUNIT: [Capsid protein VP1]: Interacts with capsid protein VP0, and
CC       capsid protein VP3 to form heterotrimeric protomers (By similarity).
CC       Five protomers subsequently associate to form pentamers which serve as
CC       building blocks for the capsid (By similarity). Interacts with capsid
CC       protein VP2, capsid protein VP3 and capsid protein VP4 following
CC       cleavage of capsid protein VP0 (By similarity).
CC       {ECO:0000250|UniProtKB:P03300}.
CC   -!- SUBUNIT: [Capsid protein VP2]: Interacts with capsid protein VP1 and
CC       capsid protein VP3 in the mature capsid.
CC       {ECO:0000250|UniProtKB:P03300}.
CC   -!- SUBUNIT: [Capsid protein VP3]: Interacts with capsid protein VP0 and
CC       capsid protein VP1 to form heterotrimeric protomers (By similarity).
CC       Five protomers subsequently associate to form pentamers which serve as
CC       building blocks for the capsid (By similarity). Interacts with capsid
CC       protein VP4 in the mature capsid (By similarity). Interacts with
CC       protein 2C; this interaction may be important for virion morphogenesis
CC       (By similarity). {ECO:0000250|UniProtKB:P03300}.
CC   -!- SUBUNIT: [Capsid protein VP4]: Interacts with capsid protein VP1 and
CC       capsid protein VP3. {ECO:0000250|UniProtKB:P03300}.
CC   -!- SUBUNIT: [Protease 2A]: Homodimer. {ECO:0000250|UniProtKB:P04936}.
CC   -!- SUBUNIT: [Protein 2C]: Homohexamer; forms a hexameric ring structure
CC       with 6-fold symmetry characteristic of AAA+ ATPases (By similarity).
CC       Interacts (via N-terminus) with host RTN3 (via reticulon domain); this
CC       interaction is important for viral replication (By similarity).
CC       Interacts with capsid protein VP3; this interaction may be important
CC       for virion morphogenesis (By similarity).
CC       {ECO:0000250|UniProtKB:P03300}.
CC   -!- SUBUNIT: [Protein 3AB]: Interacts with protein 3CD.
CC       {ECO:0000250|UniProtKB:P03300}.
CC   -!- SUBUNIT: [Protein 3A]: Homodimer (By similarity). Interacts with host
CC       GBF1 (By similarity). Interacts (via GOLD domain) with host ACBD3 (via
CC       GOLD domain); this interaction allows the formation of a viral protein
CC       3A/ACBD3 heterotetramer with a 2:2 stoichiometry, which will stimulate
CC       the recruitment of host PI4KB in order to synthesize PI4P at the viral
CC       RNA replication sites (By similarity). {ECO:0000250|UniProtKB:P03300}.
CC   -!- SUBUNIT: [Viral protein genome-linked]: Interacts with RNA-directed RNA
CC       polymerase. {ECO:0000250|UniProtKB:P03300}.
CC   -!- SUBUNIT: [Protein 3CD]: Interacts with protein 3AB and with RNA-
CC       directed RNA polymerase. {ECO:0000250|UniProtKB:P03300}.
CC   -!- SUBUNIT: [RNA-directed RNA polymerase]: Interacts with Viral protein
CC       genome-linked and with protein 3CD. {ECO:0000250|UniProtKB:P03300}.
CC   -!- SUBCELLULAR LOCATION: [Capsid protein VP0]: Virion. Host cytoplasm
CC       {ECO:0000305}.
CC   -!- SUBCELLULAR LOCATION: [Capsid protein VP4]: Virion.
CC   -!- SUBCELLULAR LOCATION: [Capsid protein VP2]: Virion
CC       {ECO:0000250|UniProtKB:P03300}. Host cytoplasm {ECO:0000305}.
CC   -!- SUBCELLULAR LOCATION: [Capsid protein VP3]: Virion
CC       {ECO:0000250|UniProtKB:P03300}. Host cytoplasm {ECO:0000305}.
CC   -!- SUBCELLULAR LOCATION: [Capsid protein VP1]: Virion
CC       {ECO:0000250|UniProtKB:P03300}. Host cytoplasm {ECO:0000305}.
CC   -!- SUBCELLULAR LOCATION: [Protein 2B]: Host cytoplasmic vesicle membrane
CC       {ECO:0000305}; Peripheral membrane protein {ECO:0000305}; Cytoplasmic
CC       side {ECO:0000305}. Note=Probably localizes to the surface of
CC       intracellular membrane vesicles that are induced after virus infection
CC       as the site for viral RNA replication. These vesicles are derived from
CC       the endoplasmic reticulum.
CC   -!- SUBCELLULAR LOCATION: [Protein 2C]: Host cytoplasmic vesicle membrane
CC       {ECO:0000305}; Peripheral membrane protein {ECO:0000305}; Cytoplasmic
CC       side {ECO:0000305}. Note=Probably localizes to the surface of
CC       intracellular membrane vesicles that are induced after virus infection
CC       as the site for viral RNA replication. These vesicles are derived from
CC       the endoplasmic reticulum.
CC   -!- SUBCELLULAR LOCATION: [Protein 3A]: Host cytoplasmic vesicle membrane
CC       {ECO:0000305}; Peripheral membrane protein {ECO:0000305}; Cytoplasmic
CC       side {ECO:0000305}. Note=Probably localizes to the surface of
CC       intracellular membrane vesicles that are induced after virus infection
CC       as the site for viral RNA replication. These vesicles are derived from
CC       the endoplasmic reticulum.
CC   -!- SUBCELLULAR LOCATION: [Protein 3AB]: Host cytoplasmic vesicle membrane
CC       {ECO:0000305}; Peripheral membrane protein {ECO:0000305}; Cytoplasmic
CC       side {ECO:0000305}. Note=Probably localizes to the surface of
CC       intracellular membrane vesicles that are induced after virus infection
CC       as the site for viral RNA replication. These vesicles are derived from
CC       the endoplasmic reticulum.
CC   -!- SUBCELLULAR LOCATION: [Viral protein genome-linked]: Virion
CC       {ECO:0000250|UniProtKB:P03300}. Host cytoplasm
CC       {ECO:0000250|UniProtKB:Q66478}.
CC   -!- SUBCELLULAR LOCATION: [Protease 3C]: Host cytoplasm.
CC   -!- SUBCELLULAR LOCATION: [Protein 3CD]: Host nucleus
CC       {ECO:0000250|UniProtKB:P03300}. Host cytoplasm
CC       {ECO:0000250|UniProtKB:P03300}. Host cytoplasmic vesicle membrane
CC       {ECO:0000305}; Peripheral membrane protein {ECO:0000305}; Cytoplasmic
CC       side {ECO:0000305}. Note=Probably localizes to the surface of
CC       intracellular membrane vesicles that are induced after virus infection
CC       as the site for viral RNA replication. These vesicles are derived from
CC       the endoplasmic reticulum.
CC   -!- SUBCELLULAR LOCATION: [RNA-directed RNA polymerase]: Host cytoplasmic
CC       vesicle membrane {ECO:0000305}; Peripheral membrane protein
CC       {ECO:0000305}; Cytoplasmic side {ECO:0000305}. Note=Probably localizes
CC       to the surface of intracellular membrane vesicles that are induced
CC       after virus infection as the site for viral RNA replication. These
CC       vesicles are derived from the endoplasmic reticulum.
CC   -!- DOMAIN: [Protein 2C]: The N-terminus has membrane-binding (By
CC       similarity). The N-terminus also displays RNA-binding properties (By
CC       similarity). The N-terminus is involved in oligomerization (By
CC       similarity). The central part contains an ATPase domain and a
CC       degenerate C4-type zinc-finger with only 3 cysteines (By similarity).
CC       The C-terminus is involved in RNA-binding (By similarity). The extreme
CC       C-terminus contains a region involved in oligomerization (By
CC       similarity). {ECO:0000250|UniProtKB:B9VUU3,
CC       ECO:0000250|UniProtKB:P03300}.
CC   -!- PTM: [Genome polyprotein]: Specific enzymatic cleavages in vivo by the
CC       viral proteases yield processing intermediates and the mature proteins.
CC       {ECO:0000250|UniProtKB:P03300}.
CC   -!- PTM: [Capsid protein VP0]: Myristoylation is required for the formation
CC       of pentamers during virus assembly. Further assembly of 12 pentamers
CC       and a molecule of genomic RNA generates the provirion.
CC       {ECO:0000250|UniProtKB:P03300}.
CC   -!- PTM: [Capsid protein VP0]: During virion maturation, immature virions
CC       are rendered infectious following cleavage of VP0 into VP4 and VP2.
CC       This maturation seems to be an autocatalytic event triggered by the
CC       presence of RNA in the capsid and it is followed by a conformational
CC       change infectious virion. {ECO:0000250|UniProtKB:P03300}.
CC   -!- PTM: [Capsid protein VP4]: Myristoylation is required during RNA
CC       encapsidation and formation of the mature virus particle.
CC       {ECO:0000250|UniProtKB:P03300}.
CC   -!- PTM: [Viral protein genome-linked]: VPg is uridylylated by the
CC       polymerase into VPg-pUpU. This acts as a nucleotide-peptide primer for
CC       the genomic RNA replication. {ECO:0000250|UniProtKB:P03300}.
CC   -!- SIMILARITY: Belongs to the picornaviruses polyprotein family.
CC       {ECO:0000305}.
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DR   EMBL; X92886; CAA63480.1; -; Genomic_RNA.
DR   SMR; Q66577; -.
DR   MEROPS; C03.011; -.
DR   Proteomes; UP000008271; Genome.
DR   GO; GO:0044162; C:host cell cytoplasmic vesicle membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0042025; C:host cell nucleus; IEA:UniProtKB-SubCell.
DR   GO; GO:0016020; C:membrane; IEA:UniProtKB-KW.
DR   GO; GO:0039618; C:T=pseudo3 icosahedral viral capsid; IEA:UniProtKB-KW.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0016887; F:ATP hydrolysis activity; IEA:InterPro.
DR   GO; GO:0004197; F:cysteine-type endopeptidase activity; IEA:UniProtKB-EC.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0005216; F:monoatomic ion channel activity; IEA:UniProtKB-KW.
DR   GO; GO:0003723; F:RNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0003724; F:RNA helicase activity; IEA:InterPro.
DR   GO; GO:0003968; F:RNA-dependent RNA polymerase activity; IEA:UniProtKB-KW.
DR   GO; GO:0005198; F:structural molecule activity; IEA:InterPro.
DR   GO; GO:0006260; P:DNA replication; IEA:UniProtKB-KW.
DR   GO; GO:0006351; P:DNA-templated transcription; IEA:InterPro.
DR   GO; GO:0075509; P:endocytosis involved in viral entry into host cell; IEA:UniProtKB-KW.
DR   GO; GO:0039520; P:induction by virus of host autophagy; ISS:UniProtKB.
DR   GO; GO:0044694; P:pore-mediated entry of viral genome into host cell; IEA:UniProtKB-KW.
DR   GO; GO:0051259; P:protein complex oligomerization; IEA:UniProtKB-KW.
DR   GO; GO:0006508; P:proteolysis; IEA:UniProtKB-KW.
DR   GO; GO:0039657; P:suppression by virus of host gene expression; IEA:UniProtKB-KW.
DR   GO; GO:0039522; P:suppression by virus of host mRNA export from nucleus; IEA:UniProtKB-KW.
DR   GO; GO:0039540; P:suppression by virus of host viral-induced cytoplasmic pattern recognition receptor signaling pathway via inhibition of host RIG-I activity; IEA:UniProtKB-KW.
DR   GO; GO:0039694; P:viral RNA genome replication; IEA:InterPro.
DR   GO; GO:0019062; P:virion attachment to host cell; IEA:UniProtKB-KW.
DR   GO; GO:0039707; P:virus-mediated pore formation in host cell membrane; IEA:UniProtKB-KW.
DR   CDD; cd23213; Enterovirus_RdRp; 1.
DR   CDD; cd00205; rhv_like; 3.
DR   Gene3D; 1.20.960.20; -; 1.
DR   Gene3D; 2.60.120.20; -; 3.
DR   Gene3D; 3.30.70.270; -; 1.
DR   Gene3D; 4.10.80.10; Picornavirus coat protein VP4; 1.
DR   Gene3D; 6.10.20.20; Poliovirus 3A protein-like; 1.
DR   Gene3D; 4.10.880.10; Poliovirus 3D polymerase Domain 1 (Nucleotidyltransferase); 2.
DR   Gene3D; 2.40.10.10; Trypsin-like serine proteases; 4.
DR   InterPro; IPR003593; AAA+_ATPase.
DR   InterPro; IPR043502; DNA/RNA_pol_sf.
DR   InterPro; IPR000605; Helicase_SF3_ssDNA/RNA_vir.
DR   InterPro; IPR014759; Helicase_SF3_ssRNA_vir.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   InterPro; IPR014838; P3A.
DR   InterPro; IPR036203; P3A_soluble_dom.
DR   InterPro; IPR044067; PCV_3C_PRO.
DR   InterPro; IPR000081; Peptidase_C3.
DR   InterPro; IPR000199; Peptidase_C3A/C3B_picornavir.
DR   InterPro; IPR009003; Peptidase_S1_PA.
DR   InterPro; IPR043504; Peptidase_S1_PA_chymotrypsin.
DR   InterPro; IPR003138; Pico_P1A.
DR   InterPro; IPR036988; Pico_P1A_sf.
DR   InterPro; IPR002527; Pico_P2B.
DR   InterPro; IPR001676; Picornavirus_capsid.
DR   InterPro; IPR043128; Rev_trsase/Diguanyl_cyclase.
DR   InterPro; IPR033703; Rhv-like.
DR   InterPro; IPR001205; RNA-dir_pol_C.
DR   InterPro; IPR007094; RNA-dir_pol_PSvirus.
DR   InterPro; IPR029053; Viral_coat.
DR   Pfam; PF08727; P3A; 1.
DR   Pfam; PF00548; Peptidase_C3; 1.
DR   Pfam; PF02226; Pico_P1A; 1.
DR   Pfam; PF00947; Pico_P2A; 1.
DR   Pfam; PF01552; Pico_P2B; 1.
DR   Pfam; PF00680; RdRP_1; 1.
DR   Pfam; PF00073; Rhv; 3.
DR   Pfam; PF00910; RNA_helicase; 1.
DR   SMART; SM00382; AAA; 1.
DR   SUPFAM; SSF56672; DNA/RNA polymerases; 1.
DR   SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 1.
DR   SUPFAM; SSF88633; Positive stranded ssRNA viruses; 2.
DR   SUPFAM; SSF89043; Soluble domain of poliovirus core protein 3a; 1.
DR   SUPFAM; SSF50494; Trypsin-like serine proteases; 2.
DR   PROSITE; PS51874; PCV_3C_PRO; 1.
DR   PROSITE; PS50507; RDRP_SSRNA_POS; 1.
DR   PROSITE; PS51218; SF3_HELICASE_2; 1.
PE   3: Inferred from homology;
KW   Activation of host autophagy by virus; ATP-binding; Autocatalytic cleavage;
KW   Capsid protein; Covalent protein-RNA linkage; DNA replication;
KW   Eukaryotic host gene expression shutoff by virus;
KW   Eukaryotic host translation shutoff by virus; Helicase; Host cytoplasm;
KW   Host cytoplasmic vesicle; Host gene expression shutoff by virus;
KW   Host membrane; Host mRNA suppression by virus; Host nucleus;
KW   Host-virus interaction; Hydrolase;
KW   Inhibition of host innate immune response by virus;
KW   Inhibition of host mRNA nuclear export by virus;
KW   Inhibition of host RIG-I by virus; Inhibition of host RLR pathway by virus;
KW   Ion channel; Ion transport; Lipoprotein; Magnesium; Membrane;
KW   Metal-binding; Myristate; Nucleotide-binding; Nucleotidyltransferase;
KW   Phosphoprotein; Pore-mediated penetration of viral genome into host cell;
KW   Protease; Repeat; RNA-binding; RNA-directed RNA polymerase;
KW   T=pseudo3 icosahedral capsid protein; Thiol protease; Transferase;
KW   Transport; Viral attachment to host cell; Viral immunoevasion;
KW   Viral ion channel; Viral penetration into host cytoplasm;
KW   Viral RNA replication; Virion; Virus endocytosis by host;
KW   Virus entry into host cell; Zinc; Zinc-finger.
FT   INIT_MET        1
FT                   /note="Removed; by host"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   CHAIN           2..2203
FT                   /note="Genome polyprotein"
FT                   /id="PRO_0000426401"
FT   CHAIN           2..869
FT                   /note="P1"
FT                   /id="PRO_0000426402"
FT   CHAIN           2..330
FT                   /note="Capsid protein VP0"
FT                   /id="PRO_0000426403"
FT   CHAIN           2..69
FT                   /note="Capsid protein VP4"
FT                   /id="PRO_0000426404"
FT   CHAIN           70..330
FT                   /note="Capsid protein VP2"
FT                   /id="PRO_0000426405"
FT   CHAIN           331..569
FT                   /note="Capsid protein VP3"
FT                   /id="PRO_0000426406"
FT   CHAIN           570..869
FT                   /note="Capsid protein VP1"
FT                   /id="PRO_0000426407"
FT   CHAIN           870..1447
FT                   /note="P2"
FT                   /id="PRO_0000426408"
FT   CHAIN           870..1019
FT                   /note="Protease 2A"
FT                   /id="PRO_0000426409"
FT   CHAIN           1020..1118
FT                   /note="Protein 2B"
FT                   /id="PRO_0000039686"
FT   CHAIN           1119..1447
FT                   /note="Protein 2C"
FT                   /id="PRO_0000039687"
FT   CHAIN           1448..2203
FT                   /note="P3"
FT                   /id="PRO_0000426410"
FT   CHAIN           1448..1558
FT                   /note="Protein 3AB"
FT                   /id="PRO_0000426411"
FT   CHAIN           1448..1536
FT                   /note="Protein 3A"
FT                   /id="PRO_0000039688"
FT   CHAIN           1537..1558
FT                   /note="Viral protein genome-linked"
FT                   /id="PRO_0000426412"
FT   CHAIN           1559..2203
FT                   /note="Protein 3CD"
FT                   /id="PRO_0000426413"
FT   CHAIN           1559..1741
FT                   /note="Protease 3C"
FT                   /id="PRO_0000426414"
FT   CHAIN           1742..2203
FT                   /note="RNA-directed RNA polymerase"
FT                   /id="PRO_0000426415"
FT   TOPO_DOM        2..1513
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   INTRAMEM        1514..1529
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        1530..2203
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   DOMAIN          1223..1379
FT                   /note="SF3 helicase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00551"
FT   DOMAIN          1559..1737
FT                   /note="Peptidase C3"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01222"
FT   DOMAIN          1968..2084
FT                   /note="RdRp catalytic"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00539"
FT   ZN_FING         1387..1404
FT                   /note="C4-type; degenerate"
FT                   /evidence="ECO:0000250|UniProtKB:B9VUU3"
FT   REGION          567..583
FT                   /note="Amphipathic alpha-helix"
FT                   /evidence="ECO:0000255"
FT   REGION          1119..1257
FT                   /note="Oligomerization"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   REGION          1119..1191
FT                   /note="Membrane-binding"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   REGION          1140..1144
FT                   /note="RNA-binding"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   REGION          1431..1438
FT                   /note="RNA-binding"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   REGION          1442..1447
FT                   /note="Oligomerization"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   ACT_SITE        890
FT                   /note="For protease 2A activity"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   ACT_SITE        908
FT                   /note="For protease 2A activity"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   ACT_SITE        979
FT                   /note="For protease 2A activity"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   ACT_SITE        1598
FT                   /note="For protease 3C activity"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01222"
FT   ACT_SITE        1629
FT                   /note="For protease 3C activity"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01222"
FT   ACT_SITE        1705
FT                   /note="For protease 3C activity"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01222"
FT   BINDING         925
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="1"
FT                   /ligand_note="structural"
FT                   /evidence="ECO:0000250|UniProtKB:Q9QF31"
FT   BINDING         927
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="1"
FT                   /ligand_note="structural"
FT                   /evidence="ECO:0000250|UniProtKB:Q9QF31"
FT   BINDING         985
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="1"
FT                   /ligand_note="structural"
FT                   /evidence="ECO:0000250|UniProtKB:Q9QF31"
FT   BINDING         987
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="1"
FT                   /ligand_note="structural"
FT                   /evidence="ECO:0000250|UniProtKB:Q9QF31"
FT   BINDING         1387
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250|UniProtKB:B9VUU3"
FT   BINDING         1399
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250|UniProtKB:B9VUU3"
FT   BINDING         1404
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250|UniProtKB:B9VUU3"
FT   BINDING         1974
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /ligand_note="catalytic; for RdRp activity"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   BINDING         1974
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /ligand_note="catalytic; for RdRp activity"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   BINDING         2070
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /ligand_note="catalytic; for RdRp activity"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   BINDING         2070
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /ligand_note="catalytic; for RdRp activity"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   SITE            69..70
FT                   /note="Cleavage; by autolysis"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   SITE            330..331
FT                   /note="Cleavage; by protease 3C"
FT                   /evidence="ECO:0000250|UniProtKB:P03301"
FT   SITE            869..870
FT                   /note="Cleavage; by autolysis"
FT                   /evidence="ECO:0000250|UniProtKB:P03301"
FT   SITE            1019..1020
FT                   /note="Cleavage; by protease 3C"
FT                   /evidence="ECO:0000250|UniProtKB:P03301"
FT   SITE            1118..1119
FT                   /note="Cleavage; by protease 3C"
FT                   /evidence="ECO:0000250|UniProtKB:P03301"
FT   SITE            1143
FT                   /note="Involved in the interaction with host RTN3"
FT                   /evidence="ECO:0000250|UniProtKB:Q66478"
FT   SITE            1447..1448
FT                   /note="Cleavage; by protease 3C"
FT                   /evidence="ECO:0000250|UniProtKB:P03301"
FT   SITE            1536..1537
FT                   /note="Cleavage; by protease 3C"
FT                   /evidence="ECO:0000250|UniProtKB:P03301"
FT   SITE            1558..1559
FT                   /note="Cleavage; by protease 3C"
FT                   /evidence="ECO:0000250|UniProtKB:P03301"
FT   SITE            1741..1742
FT                   /note="Cleavage; by protease 3C"
FT                   /evidence="ECO:0000250|UniProtKB:P03301"
FT   MOD_RES         1539
FT                   /note="O-(5'-phospho-RNA)-tyrosine"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   LIPID           2
FT                   /note="N-myristoyl glycine; by host"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
SQ   SEQUENCE   2203 AA;  246281 MW;  79B78F8C99D02777 CRC64;
     MGAQVSTQKT GAHETGLNAS GNSIIHYTNI NYYKDSASNS ANRQDFTQDP SKFTEPVKDV
     MIKTLPALNS PSAEECGFSD RVRSITIGNS TITTQECANV VVAYGRWPAY LRDDEATAED
     QPTQPDVATC RFYTLESVQW QENSAGWWWK FPDALSNMGL FGQNMLYHYL GRSGYTIHVQ
     CNASKFHQGR PIVVCVPEAE MGCSKVDGVV NAQGLSKGET PIEFERTSTT AEVGVVQKAV
     YNAGMGVGVG NLTIFPHQWI NLRRNNSATI VIPYINCVPM DNMFRHNNFT LMVILFAPLK
     SSGGTNYVSI TITVAPMDAE YNGLRLAGHQ GLPTMNTPGS TQFLTSDDFQ SPCAMPEFDV
     TPCMDIPGEV HNLMEIAEVD SVVPVNNTST HMEGTDAFQI KVTAGNVQDK SAIFSFQLNP
     GNSTVLRRTL LGEILNYYAH WSGSIKLTFL FCGSAMATGK LLLAYSHAGA SVPKSRRDAM
     LGTHVIWDVG LQSSCVLCVP WISQTHYRLV AQDEYTSAGY ITCWYQTNIV VPPETPSDCV
     VLCFVSACND FSVRMLKDTP FIEQAAELQN DVRQAVEGAI GRVADTIRSG PSNSEAVPAL
     TAAETGHTSQ VVPSDTMQTR HVKNYHSRSE STIENFLCRS ACVRMAKYEA RGDPESTDRF
     DAWEISVRDM VQMRRKCEMF TYLRFDVEVT FVITSYQHQG SINQDMPPMT HQIMYIPPGG
     PFPKKVDGYE WQTSTNPSIF WTEGNAPPRM SIPFISIGNA YSSFYDGWSH FDSKGAYGFN
     TLNKMGHIYC RHVNKETPAE VTSYIRIYFK PKHIRAWVPR PPRLCQYKNK ANVNFEATAF
     TETRDTINTV PVSNHGSGRR GDLAALSTHG AFGQESGAVY VGNYRVLNRH LATHTDWQNC
     IWEDYNRDLL VSTTTAHGCD TIARCQCKTG VFFCQSKNKH YPVSFEGPGL VEVQESEYYP
     KRYQSHVLLA AGFSEPGDCG GILRCDHGVI GLVTMGGEGV VGFADVRDLL WLEDDAMEQG
     VKDYVEQLGN AFGSGFTNQI CEQVNLLKES LIGQDSVLEK SLKALVKIIS ALVIVVRNQD
     DLITVTATLA LIGCTTSPWR WLKQKVSQYY GIPMAERQSN GWLKKFTEMT NACKGMEWIA
     VKIQKFIEWL KVKNLPEVKE KHEFLNRLKQ LPLLESQIAT IEQSAPSQSD QEQLFSNVQY
     FAHYCRKYAP LYAAEAKRVF SLEKKMSNYI QFKSKCRIEP VCLLLHGSPG AGKSVATNLI
     GRSLAEKLNS SVYSLPPDPD HFDGYKQQAV VIMDDLCQNP DGKDVSLFCQ MVSSVDFVPP
     MAALEEKGIL FTSPFVLAST NAGSINAPTV SDSRALARRF HFDMNIEVIS MYSQNGKINM
     PMSVKTCDEE CCPVNFKRCC PLVCGKAIQF IDRRTQVRYS LDMLVTEMFR EYNHRHSVGA
     TLEALFQGPP VYREIKISVA PETPPPPAIA DLLKSVDSEA VREYCKERGW LVPEINSTLQ
     IEKHVSRAFI CLQALTTFVS VAGIIYIIYK LFAGFQGAYT GMPNKKPKVP TLRQAKVQGP
     AFEFAVAMMK RNASTVKTEY GEFTMLGIYD RWAVLPRHAK PGSTILMNDQ EVCLLDAKEL
     VDKDGINLEL TLLKLNRNEK FRDIRGFLAR EEVEVNEAVL AINTSKFPNM YIPVGQVTDY
     GFLNLGGTPT KRMLMYNFPT RAGQCGGVLM STGKVLGIHV GGNGHQGFSA ALLRHYFNEE
     QGEIEFIESS KDAGFPVINT PSKTKLEPSV FHQVFEGNKE PAVLRNGDPR LKADFEEAIF
     SKYIGNVNTH VDEYMQEAVD HYAGQLATLD ISTEPMKLED AVYGTEGLEA LDLTTSAGYP
     YVALGIKKRD ILSKRTKDLT KLKECMDKYG LNLPMVTYVK DELRSAEKSP RGKSRLIEAS
     SLNDSVAMRQ TFGNLYKVFH LNPGIVTGSA VGCDPDVFWS KIPVMLDGHL IAFDYSGYDA
     SLSPVWFACL KLLLEKLGYS SKETNYIDYL CNSHHLYRDK HYFVRGGMPS GCSGTSIFNS
     MINNIIIRTL MLKVYKGIDL DQFRMIAYGD DVIASYPWPI DASLLAEAGK DYGLIMTPAD
     KGECFNEVTW TNVTFLKRYF RADEQYPFLV HPVMPMKDIH ESIRWTKDPK NTQDHVRSLC
     LLAWHNGEHE YEEFIHKIRS VPVGRCLTLP AFSTLRRKWL DSF
//