ID   POLG_POL2W              Reviewed;        2205 AA.
AC   P23069;
DT   01-NOV-1991, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 3.
DT   24-JAN-2024, entry version 183.
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   Poliovirus type 2 (strain W-2).
OC   Viruses; Riboviria; Orthornavirae; Pisuviricota; Pisoniviricetes;
OC   Picornavirales; Picornaviridae; Ensavirinae; Enterovirus; Enterovirus C.
OX   NCBI_TaxID=12085;
OH   NCBI_TaxID=9606; Homo sapiens (Human).
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC RNA].
RX   PubMed=2154539; DOI=10.1099/0022-1317-71-1-43;
RA   Pevear D.C., Oh C.K., Cunningham L.L., Calenoff M., Jubelt B.;
RT   "Localization of genomic regions specific for the attenuated, mouse-adapted
RT   poliovirus type 2 strain W-2.";
RL   J. Gen. Virol. 71:43-52(1990).
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       PVR to provide virion attachment to target host cells (By similarity).
CC       This attachment induces virion internalization predominantly through
CC       clathrin- and caveolin-independent endocytosis in Hela cells and
CC       through caveolin-mediated endocytosis in brain microvascular
CC       endothelial cells (By similarity). Tyrosine kinases are probably
CC       involved in the entry process (By similarity). Virus binding to PVR
CC       induces increased junctional permeability and rearrangement of
CC       junctional proteins (By similarity). Modulation of endothelial tight
CC       junctions, as well as cytolytic infection of endothelial cells
CC       themselves, may result in loss of endothelial integrity which may help
CC       the virus to reach the CNS (By similarity). After binding to its
CC       receptor, the capsid undergoes conformational changes (By similarity).
CC       Capsid protein VP1 N-terminus (that contains an amphipathic alpha-
CC       helix) and capsid protein VP4 are externalized (By similarity).
CC       Together, they shape a pore in the host membrane through which viral
CC       genome is translocated to host cell cytoplasm (By similarity).
CC       {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 including
CC       NUP98, NUP62 and NUP153 (By similarity). Counteracts stress granule
CC       formation probably by antagonizing its assembly or promoting its
CC       dissassembly (By similarity). Cleaves and inhibits host IFIH1/MDA5,
CC       thereby inhibiting the type-I IFN production and the establishment of
CC       the antiviral state (By similarity). Cleaves and inhibits host MAVS,
CC       thereby inhibiting the type-I IFN production and the establishment of
CC       the antiviral state (By 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: [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 RIGI and thus contributes to the inhibition of type I
CC       interferon production (By similarity). Cleaves host NLRP1, triggers
CC       host N-glycine-mediated degradation of the autoinhibitory NLRP1 N-
CC       terminal fragment (By similarity). Inhibits the integrated stress
CC       response (ISR) in the infected cell by cleaving host G3BP1 (By
CC       similarity). Stress granule formation is thus inhibited, which allows
CC       protein synthesis and viral replication (By similarity).
CC       {ECO:0000250|UniProtKB:P03300, ECO:0000250|UniProtKB:P03303}.
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   -!- 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       Interacts with human PVR (By similarity). Five protomers subsequently
CC       associate to form pentamers which serve as building blocks for the
CC       capsid (By similarity). Interacts with capsid protein VP2, capsid
CC       protein VP3 and capsid protein VP4 following cleavage of capsid protein
CC       VP0 (By similarity). {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 C4-type
CC       zinc-finger (By similarity). The C-terminus is involved in RNA-binding
CC       (By similarity). The extreme C-terminus contains a region involved in
CC       oligomerization (By similarity). {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; D00625; BAA00516.1; ALT_SEQ; Genomic_RNA.
DR   PIR; A34032; GNNY2W.
DR   SMR; P23069; -.
DR   MEROPS; C03.001; -.
DR   MEROPS; C03.020; -.
DR   MEROPS; N08.001; -.
DR   Proteomes; UP000008165; 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: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:0017111; F:ribonucleoside triphosphate phosphatase activity; IEA:UniProtKB-EC.
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: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:0019065; P:receptor-mediated endocytosis of virus by host cell; 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:0039554; P:suppression by virus of host viral-induced cytoplasmic pattern recognition receptor signaling pathway via inhibition of host MDA-5 activity; 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:0039545; P:suppression by virus of host viral-induced cytoplasmic pattern recognition receptor signaling pathway via inhibition of MAVS 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; 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; 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; 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   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;
KW   Clathrin- and caveolin-independent endocytosis of virus by host;
KW   Covalent protein-RNA linkage; DNA replication;
KW   Eukaryotic host gene expression shutoff by virus;
KW   Eukaryotic host transcription 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 eukaryotic host transcription initiation by virus;
KW   Inhibition of host innate immune response by virus;
KW   Inhibition of host MAVS by virus; Inhibition of host MDA5 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..2205
FT                   /note="Genome polyprotein"
FT                   /id="PRO_0000426626"
FT   CHAIN           2..879
FT                   /note="P1"
FT                   /id="PRO_0000426627"
FT   CHAIN           2..340
FT                   /note="Capsid protein VP0"
FT                   /id="PRO_0000426628"
FT   CHAIN           2..69
FT                   /note="Capsid protein VP4"
FT                   /id="PRO_0000426629"
FT   CHAIN           70..340
FT                   /note="Capsid protein VP2"
FT                   /id="PRO_0000426630"
FT   CHAIN           341..578
FT                   /note="Capsid protein VP3"
FT                   /id="PRO_0000426631"
FT   CHAIN           579..879
FT                   /note="Capsid protein VP1"
FT                   /id="PRO_0000426632"
FT   CHAIN           880..1454
FT                   /note="P2"
FT                   /id="PRO_0000426633"
FT   CHAIN           880..1028
FT                   /note="Protease 2A"
FT                   /id="PRO_0000426634"
FT   CHAIN           1029..1125
FT                   /note="Protein 2B"
FT                   /id="PRO_0000040118"
FT   CHAIN           1126..1454
FT                   /note="Protein 2C"
FT                   /id="PRO_0000040119"
FT   CHAIN           1455..2205
FT                   /note="P3"
FT                   /id="PRO_0000426635"
FT   CHAIN           1455..1563
FT                   /note="Protein 3AB"
FT                   /id="PRO_0000426636"
FT   CHAIN           1455..1541
FT                   /note="Protein 3A"
FT                   /id="PRO_0000040120"
FT   CHAIN           1542..1563
FT                   /note="Viral protein genome-linked"
FT                   /id="PRO_0000426637"
FT   CHAIN           1564..2205
FT                   /note="Protein 3CD"
FT                   /id="PRO_0000426638"
FT   CHAIN           1564..1746
FT                   /note="Protease 3C"
FT                   /id="PRO_0000426639"
FT   CHAIN           1747..2205
FT                   /note="RNA-directed RNA polymerase"
FT                   /id="PRO_0000426640"
FT   TOPO_DOM        2..1518
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   INTRAMEM        1519..1534
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        1535..2205
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   DOMAIN          1230..1386
FT                   /note="SF3 helicase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00551"
FT   DOMAIN          1564..1742
FT                   /note="Peptidase C3"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01222"
FT   DOMAIN          1971..2086
FT                   /note="RdRp catalytic"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00539"
FT   ZN_FING         1394..1411
FT                   /note="C4-type"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   REGION          579..599
FT                   /note="Amphipathic alpha-helix"
FT                   /evidence="ECO:0000255"
FT   REGION          598..619
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          1126..1264
FT                   /note="Oligomerization"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   REGION          1126..1198
FT                   /note="Membrane-binding"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   REGION          1147..1151
FT                   /note="RNA-binding"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   REGION          1438..1445
FT                   /note="RNA-binding"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   REGION          1449..1454
FT                   /note="Oligomerization"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   ACT_SITE        899
FT                   /note="For protease 2A activity"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   ACT_SITE        917
FT                   /note="For protease 2A activity"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   ACT_SITE        988
FT                   /note="For protease 2A activity"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   ACT_SITE        1603
FT                   /note="For protease 3C activity"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01222"
FT   ACT_SITE        1634
FT                   /note="For protease 3C activity"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01222"
FT   ACT_SITE        1710
FT                   /note="For protease 3C activity"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01222"
FT   BINDING         934
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         936
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         994
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         996
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         1254..1261
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00551"
FT   BINDING         1394
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   BINDING         1397
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   BINDING         1406
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   BINDING         1411
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250|UniProtKB:P03300"
FT   BINDING         1977
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         1977
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         2072
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         2072
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            340..341
FT                   /note="Cleavage; by protease 3C"
FT                   /evidence="ECO:0000250|UniProtKB:P03301"
FT   SITE            879..880
FT                   /note="Cleavage; by autolysis"
FT                   /evidence="ECO:0000250|UniProtKB:P03301"
FT   SITE            1028..1029
FT                   /note="Cleavage; by protease 3C"
FT                   /evidence="ECO:0000250|UniProtKB:P03301"
FT   SITE            1125..1126
FT                   /note="Cleavage; by protease 3C"
FT                   /evidence="ECO:0000250|UniProtKB:P03301"
FT   SITE            1150
FT                   /note="Involved in the interaction with host RTN3"
FT                   /evidence="ECO:0000250|UniProtKB:Q66478"
FT   SITE            1541..1542
FT                   /note="Cleavage; by protease 3C"
FT                   /evidence="ECO:0000250|UniProtKB:P03301"
FT   SITE            1563..1564
FT                   /note="Cleavage; by protease 3C"
FT                   /evidence="ECO:0000250|UniProtKB:P03301"
FT   SITE            1746..1747
FT                   /note="Cleavage; by protease 3C"
FT                   /evidence="ECO:0000250|UniProtKB:P03301"
FT   MOD_RES         1544
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   2205 AA;  245703 MW;  2A42AB039E0254AD CRC64;
     MGAQVSSQKV GAHENSNRAY GGSTINYTTI NYYRDSASNA ASKQDFAQDP SKFTEPIKDV
     LIKTAPTLNS PNIEACGYSD RVMQLTLGNS TITTQEAANS VVAYGRWPEY IKDSEANPVD
     QPTEPDVAAC RFYTLDTVTW RKESRGWWWK LPDALKDMGL FGQNMFYHYL GRASYTVHVQ
     CNASKFHQGA LGVFAVPEMC LAGDSATHML TKYENANPGE KGGEFKGSFT LDTNATNPAR
     NFCPVDYLFG SGVLAGNAFV YPHQIINLRT NNCATLVLPY VNSLSIDSMT KHNNWGIAIL
     PLAPLDFATE SSTEIPITLT IAPMCCEFNG LRNITVPRTQ GLPVLNTPGS NQYLTADNYQ
     SPCAIPEFDV TPPIDIPGEV RNMMELAEID TMIPLNLTSQ RKNTMDMYRV ELNDAAHSDT
     PILCLSLSPA SDPRLAHTML GEILNYYTHW AGSLKFTFLF CGSMMATGKL LVSYAPPGAK
     APESRKEAML GTHVIWDIGL QSSCTMVVPW ISNTTYRQTI NDSFTEGGYI SMFYQTRVVV
     PLSTPRKMDI LGFVSACNDF SVRLLRDTTH ISQEVMPQGL GDLIEGVVEG VTRNALTPLT
     PVNNLPDTRS SGPAHSKETP ALTAVETGAT NPLVPSDTVQ TRHVIQKRTR SESTVESFFA
     RGACVAIIEV DNDAPTRRAS KLFSVWKITY KDTVQLRRKL EFFTYSRFDM EFTFVVTSNY
     TDANNGHALN QVYQIMYIPP GAPIPGKRND YTWQTSSNPS VFYTYGAPPA RISVPYVGIA
     NAYSHFYDGF AKVPLAGQAS TEGDSLYGAA SLNDFGSLAV RVVNDHNPTK LTSKIRVYMK
     PKHVRVWCPR PPRAVPYYGP GVDYKDGLTP LPEKGLITYG FGHQNKAVYT AGYKICNYHL
     ATQEDLQNAI NIMWIRDLLV VESKAQGIDS IARCNCHTGV YYCESRRKYY PVSFVGPTFQ
     YMEANEYYPA RYQSHMLIGH GFASPGDCGG ILRCQHGVIG IITAGGEGLV AFSDIRDLYA
     YEVEAMEQGV SNYIESLGAA FGSGFTQQIG NKISELTSMV TSTITEKLLK NLIKIISSLV
     IITRNYEDTT TVLATLALLG CDASPWQWLK KKACDILEIP YIMRQGDSWL KKFTEACNAA
     KGLEWVSNKI SKFIDWLKEK IIPQARDKLE FVTKLKQLEM LENQIATIHQ SCPSQEHQEI
     LFNNVRWLSI QSRRFAPLYA VEAKRIQKLE HTINNYVQFK SKHRIEPVCL LVHGSPGTGK
     SVATNLIARA IAEKENTSTY SLPPDPSHFD GYKQQGVVIM DDLNQNPDGA DMKLFCQMVS
     TVEFIPPMAS LEEKGILFTS NYVLASTNSS RITPPTVAHS DALARRFAFD MDIQIMSEYS
     RDGKLNMAMA TEMCKNCHQP ANFKRCCPLV CGKAIQLMDK SSRVRYSIDQ ITTMIINERN
     RRSSIGNCME ALFQSPLQYK DLKIDIKTTP PPECINDLLH AVDSQEVRDY CEKKGWIADI
     TSQVQTERNI NRAMTILQAV TTFAAVAGVV YVMYKLFAGH QGAYTGLPNK RPNVPTIRTA
     KVQGPGFDYA VAMAKRNILT ATTIKGEFTM LGVHDNVAIL PTHASPGETI VIDGKEVEVL
     DAKALEDQAG TNLEITIVTL KRNEKFRDIR PHIPTQITET NDGVLIVNTS KYPNMYVPVG
     AVTEQGYLNL GGRQTARTLM YNFPTRAGQC GGVITCTGKV IGMHVGGNGS HGFAAALKRS
     YFTQSQGEIQ WMRPSKEVGY PVINAPSKTK LEPSAFHYVF EGVKEPAVLT KSDPRLKTDF
     EEAIFSKYVG NKITEVDEYM KEAVDHYAGQ LMSLDINTEQ MCLEDAMYGT DGLEALDLST
     SAGYPYVAMG KKKRDILNKQ TRDTKEMQRL LDTYGINLPL VTYVKDELRS KTKVEQGKSR
     LIEASSLNDS VAMRMAFGNL YAAFHKNPGV VTGSAVGCDP DLFWSKIPVL MEEKLFDYTG
     YDASLSPAWF EALKMVLEKI GFGDRVDYID YLNHSHHLYK NKTYCVKGGM PSGCSGTSIF
     NSMINNLIIR TLLLKTYKGI DLDHLKMIAY GDDVIASYPH EVDASLLAQS GKDYGLTMTP
     ADKSATFETV TWENVTFLKR FFRADEKYPF LVHPVMPMKE IHESIRWTKD PRNTQDHVRS
     LCLLAWHSGE EEYNKFLAKI RSVPIGRALL LPEYSTLYRR WLDSF
//