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POLS_CHIK3
ID   POLS_CHIK3              Reviewed;        1248 AA.
AC   Q5XXP3;
DT   07-MAR-2006, integrated into UniProtKB/Swiss-Prot.
DT   23-NOV-2004, sequence version 1.
DT   03-AUG-2022, entry version 100.
DE   RecName: Full=Structural polyprotein;
DE   AltName: Full=p130;
DE   Contains:
DE     RecName: Full=Capsid protein;
DE              EC=3.4.21.90 {ECO:0000250|UniProtKB:P03315};
DE     AltName: Full=Coat protein;
DE              Short=C;
DE   Contains:
DE     RecName: Full=Precursor of protein E3/E2;
DE     AltName: Full=p62;
DE     AltName: Full=pE2;
DE   Contains:
DE     RecName: Full=Assembly protein E3;
DE   Contains:
DE     RecName: Full=Spike glycoprotein E2;
DE     AltName: Full=E2 envelope glycoprotein;
DE   Contains:
DE     RecName: Full=6K protein;
DE   Contains:
DE     RecName: Full=Spike glycoprotein E1;
DE     AltName: Full=E1 envelope glycoprotein;
OS   Chikungunya virus (strain 37997) (CHIKV).
OC   Viruses; Riboviria; Orthornavirae; Kitrinoviricota; Alsuviricetes;
OC   Martellivirales; Togaviridae; Alphavirus.
OX   NCBI_TaxID=371095;
OH   NCBI_TaxID=7159; Aedes aegypti (Yellowfever mosquito) (Culex aegypti).
OH   NCBI_TaxID=7160; Aedes albopictus (Asian tiger mosquito) (Stegomyia albopicta).
OH   NCBI_TaxID=299627; Aedes furcifer (Mosquito).
OH   NCBI_TaxID=188700; Aedes polynesiensis (Polynesian tiger mosquito).
OH   NCBI_TaxID=9533; Cercopithecus.
OH   NCBI_TaxID=9606; Homo sapiens (Human).
OH   NCBI_TaxID=9539; Macaca (macaques).
OH   NCBI_TaxID=9598; Pan troglodytes (Chimpanzee).
OH   NCBI_TaxID=9554; Papio (baboons).
OH   NCBI_TaxID=9573; Presbytis.
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC RNA].
RX   PubMed=15891138; DOI=10.4269/ajtmh.2005.72.616;
RA   Vanlandingham D.L., Hong C., Klingler K., Tsetsarkin K., McElroy K.L.,
RA   Powers A.M., Lehane M.J., Higgs S.;
RT   "Differential infectivities of O'Nyong-Nyong and Chikungunya virus isolates
RT   in Anopheles gambiae and Aedes aegypti mosquitoes.";
RL   Am. J. Trop. Med. Hyg. 72:616-621(2005).
RN   [2] {ECO:0007744|PDB:3J2W}
RP   STRUCTURE BY ELECTRON MICROSCOPY (5.00 ANGSTROMS) OF 1203-1248; 113-261 AND
RP   668-748.
RX   PubMed=23577234; DOI=10.7554/elife.00435;
RA   Sun S., Xiang Y., Akahata W., Holdaway H., Pal P., Zhang X., Diamond M.S.,
RA   Nabel G.J., Rossmann M.G.;
RT   "Structural analyses at pseudo atomic resolution of Chikungunya virus and
RT   antibodies show mechanisms of neutralization.";
RL   Elife 2:e00435-e00435(2013).
RN   [3] {ECO:0007744|PDB:5VU2}
RP   STRUCTURE BY ELECTRON MICROSCOPY (6.80 ANGSTROMS) OF 1203-1248; 113-261;
RP   668-748 AND 266-324.
RX   PubMed=29203665; DOI=10.1073/pnas.1713166114;
RA   Yap M.L., Klose T., Urakami A., Hasan S.S., Akahata W., Rossmann M.G.;
RT   "Structural studies of Chikungunya virus maturation.";
RL   Proc. Natl. Acad. Sci. U.S.A. 114:13703-13707(2017).
CC   -!- FUNCTION: [Capsid protein]: Forms an icosahedral capsid with a T=4
CC       symmetry composed of 240 copies of the capsid protein surrounded by a
CC       lipid membrane through which penetrate 80 spikes composed of trimers of
CC       E1-E2 heterodimers (By similarity). The capsid protein binds to the
CC       viral RNA genome at a site adjacent to a ribosome binding site for
CC       viral genome translation following genome release (By similarity).
CC       Possesses a protease activity that results in its autocatalytic
CC       cleavage from the nascent structural protein (By similarity). Following
CC       its self-cleavage, the capsid protein transiently associates with
CC       ribosomes, and within several minutes the protein binds to viral RNA
CC       and rapidly assembles into icosahedric core particles (By similarity).
CC       The resulting nucleocapsid eventually associates with the cytoplasmic
CC       domain of the spike glycoprotein E2 at the cell membrane, leading to
CC       budding and formation of mature virions (By similarity). In case of
CC       infection, new virions attach to target cells and after clathrin-
CC       mediated endocytosis their membrane fuses with the host endosomal
CC       membrane (By similarity). This leads to the release of the nucleocapsid
CC       into the cytoplasm, followed by an uncoating event necessary for the
CC       genomic RNA to become accessible (By similarity). The uncoating might
CC       be triggered by the interaction of capsid proteins with ribosomes (By
CC       similarity). Binding of ribosomes would release the genomic RNA since
CC       the same region is genomic RNA-binding and ribosome-binding (By
CC       similarity). Specifically inhibits interleukin-1 receptor-associated
CC       kinase 1/IRAK1-dependent signaling during viral entry, representing a
CC       means by which the alphaviruses may evade innate immune detection and
CC       activation prior to viral gene expression (By similarity). Degrades
CC       host cyclic GMP-AMP synthase (CGAS) thereby inhibiting the cGAS-STING
CC       pathway (By similarity). {ECO:0000250|UniProtKB:P03315,
CC       ECO:0000250|UniProtKB:P03316, ECO:0000250|UniProtKB:P27284,
CC       ECO:0000250|UniProtKB:Q8JUX5}.
CC   -!- FUNCTION: [Assembly protein E3]: Provides the signal sequence for the
CC       translocation of the precursor of protein E3/E2 to the host endoplasmic
CC       reticulum. Furin-cleaved E3 remains associated with spike glycoprotein
CC       E1 and mediates pH protection of the latter during the transport via
CC       the secretory pathway. After virion release from the host cell, the
CC       assembly protein E3 is gradually released in the extracellular space.
CC       {ECO:0000250|UniProtKB:P03315}.
CC   -!- FUNCTION: [Spike glycoprotein E2]: Plays a role in viral attachment to
CC       target host cell, by binding to the cell receptor. Synthesized as a p62
CC       precursor which is processed by furin at the cell membrane just before
CC       virion budding, giving rise to E2-E1 heterodimer. The p62-E1
CC       heterodimer is stable, whereas E2-E1 is unstable and dissociate at low
CC       pH. p62 is processed at the last step, presumably to avoid E1 fusion
CC       activation before its final export to cell surface. E2 C-terminus
CC       contains a transitory transmembrane that would be disrupted by
CC       palmitoylation, resulting in reorientation of the C-terminal tail from
CC       lumenal to cytoplasmic side. This step is critical since E2 C-terminus
CC       is involved in budding by interacting with capsid proteins. This
CC       release of E2 C-terminus in cytoplasm occurs lately in protein export,
CC       and precludes premature assembly of particles at the endoplasmic
CC       reticulum membrane. {ECO:0000250|UniProtKB:P03315}.
CC   -!- FUNCTION: [6K protein]: Constitutive membrane protein involved in virus
CC       glycoprotein processing, cell permeabilization, and the budding of
CC       viral particles. Disrupts the calcium homeostasis of the cell, probably
CC       at the endoplasmic reticulum level. This leads to cytoplasmic calcium
CC       elevation. Because of its lipophilic properties, the 6K protein is
CC       postulated to influence the selection of lipids that interact with the
CC       transmembrane domains of the glycoproteins, which, in turn, affects the
CC       deformability of the bilayer required for the extreme curvature that
CC       occurs as budding proceeds. Present in low amount in virions, about 3%
CC       compared to viral glycoproteins. {ECO:0000250|UniProtKB:P03315}.
CC   -!- FUNCTION: [Spike glycoprotein E1]: Class II viral fusion protein.
CC       Fusion activity is inactive as long as E1 is bound to E2 in mature
CC       virion. After virus attachment to target cell and endocytosis,
CC       acidification of the endosome would induce dissociation of E1/E2
CC       heterodimer and concomitant trimerization of the E1 subunits. This E1
CC       trimer is fusion active, and promotes release of viral nucleocapsid in
CC       cytoplasm after endosome and viral membrane fusion. Efficient fusion
CC       requires the presence of cholesterol and sphingolipid in the target
CC       membrane. Fusion is optimal at levels of about 1 molecule of
CC       cholesterol per 2 molecules of phospholipids, and is specific for
CC       sterols containing a 3-beta-hydroxyl group.
CC       {ECO:0000250|UniProtKB:P03315}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=Autocatalytic release of the core protein from the N-terminus
CC         of the togavirus structural polyprotein by hydrolysis of a -Trp-|-
CC         Ser- bond.; EC=3.4.21.90; Evidence={ECO:0000250|UniProtKB:P03316};
CC   -!- SUBUNIT: [Capsid protein]: Homodimer (By similarity). Homomultimer
CC       (Probable). Interacts with host karyopherin KPNA4; this interaction
CC       allows the nuclear import of the viral capsid protein (By similarity).
CC       Interacts with spike glycoprotein E2 (By similarity). Interacts with
CC       host IRAK1; the interaction leads to inhibition of IRAK1-dependent
CC       signaling (By similarity). {ECO:0000250|UniProtKB:P03315,
CC       ECO:0000250|UniProtKB:P03316, ECO:0000250|UniProtKB:P0DOK1,
CC       ECO:0000250|UniProtKB:Q8JUX5, ECO:0000305}.
CC   -!- SUBUNIT: [Precursor of protein E3/E2]: The precursor of protein E3/E2
CC       and E1 form a heterodimer shortly after synthesis (By similarity).
CC       {ECO:0000250|UniProtKB:P03315, ECO:0000250|UniProtKB:P03316,
CC       ECO:0000250|UniProtKB:P0DOK1, ECO:0000250|UniProtKB:Q8JUX5}.
CC   -!- SUBUNIT: [Spike glycoprotein E1]: The precursor of protein E3/E2 and E1
CC       form a heterodimer shortly after synthesis (By similarity). Processing
CC       of the precursor of protein E3/E2 into E2 and E3 results in a
CC       heterodimer of the spike glycoproteins E2 and E1 (By similarity). Spike
CC       at virion surface are constituted of three E2-E1 heterodimers (By
CC       similarity). After target cell attachment and endocytosis, E1 change
CC       conformation to form homotrimers (By similarity). Interacts with 6K
CC       protein (By similarity). {ECO:0000250|UniProtKB:P03315,
CC       ECO:0000250|UniProtKB:P03316, ECO:0000250|UniProtKB:P0DOK1,
CC       ECO:0000250|UniProtKB:Q8JUX5}.
CC   -!- SUBUNIT: [Spike glycoprotein E2]: Processing of the precursor of
CC       protein E3/E2 into E2 and E3 results in a heterodimer of the spike
CC       glycoproteins E2 and E1 (By similarity). Spike at virion surface are
CC       constituted of three E2-E1 heterodimers (By similarity). Interacts with
CC       6K protein (By similarity). Interacts with host MXRA8; this interaction
CC       mediates virus entry (By similarity). {ECO:0000250|UniProtKB:P03315,
CC       ECO:0000250|UniProtKB:P03316, ECO:0000250|UniProtKB:P0DOK1,
CC       ECO:0000250|UniProtKB:Q8JUX5}.
CC   -!- SUBUNIT: [6K protein]: Interacts with spike glycoprotein E1 (By
CC       similarity). Interacts with spike glycoprotein E2 (By similarity).
CC       {ECO:0000250|UniProtKB:P03315, ECO:0000250|UniProtKB:P03316,
CC       ECO:0000250|UniProtKB:P0DOK1, ECO:0000250|UniProtKB:Q8JUX5}.
CC   -!- SUBCELLULAR LOCATION: [Capsid protein]: Virion
CC       {ECO:0000250|UniProtKB:P03316}. Host cytoplasm
CC       {ECO:0000250|UniProtKB:Q8JUX5}. Host cell membrane
CC       {ECO:0000250|UniProtKB:P03316}. Host nucleus
CC       {ECO:0000250|UniProtKB:Q8JUX5}. Note=Shuttles between the cytoplasm and
CC       the nucleus. {ECO:0000250|UniProtKB:Q8JUX5}.
CC   -!- SUBCELLULAR LOCATION: [Spike glycoprotein E2]: Virion membrane
CC       {ECO:0000250|UniProtKB:Q8JUX5}; Single-pass type I membrane protein
CC       {ECO:0000255}. Host cell membrane {ECO:0000250|UniProtKB:P03316};
CC       Single-pass type I membrane protein {ECO:0000250|UniProtKB:Q8JUX5}.
CC   -!- SUBCELLULAR LOCATION: [6K protein]: Host cell membrane
CC       {ECO:0000250|UniProtKB:P03316}; Multi-pass membrane protein
CC       {ECO:0000255}. Virion membrane {ECO:0000250|UniProtKB:P03316}; Multi-
CC       pass membrane protein {ECO:0000255}.
CC   -!- SUBCELLULAR LOCATION: [Spike glycoprotein E1]: Virion membrane
CC       {ECO:0000250|UniProtKB:Q8JUX5}; Single-pass type I membrane protein
CC       {ECO:0000255}. Host cell membrane {ECO:0000250|UniProtKB:P03316,
CC       ECO:0000250|UniProtKB:Q8JUX5}; Single-pass type I membrane protein
CC       {ECO:0000255}.
CC   -!- DOMAIN: [Capsid protein]: The N-terminus contains a nuclear
CC       localization signal and a CRM1-mediated nuclear export signal (By
CC       similarity). The C-terminus functions as a protease during translation
CC       to cleave itself from the translating structural polyprotein (By
CC       similarity). {ECO:0000250|UniProtKB:P03316,
CC       ECO:0000250|UniProtKB:Q8JUX5}.
CC   -!- DOMAIN: Structural polyprotein: As soon as the capsid protein has been
CC       autocleaved, an internal uncleaved signal peptide directs the remaining
CC       polyprotein to the endoplasmic reticulum.
CC       {ECO:0000250|UniProtKB:P03315}.
CC   -!- PTM: Structural polyprotein: Specific enzymatic cleavages in vivo yield
CC       mature proteins. Capsid protein is auto-cleaved during polyprotein
CC       translation, unmasking a signal peptide at the N-terminus of the
CC       precursor of E3/E2 (By similarity). The remaining polyprotein is then
CC       targeted to the host endoplasmic reticulum, where host signal peptidase
CC       cleaves it into pE2, 6K and E1 proteins. pE2 is further processed to
CC       mature E3 and E2 by host furin in trans-Golgi vesicle (By similarity).
CC       {ECO:0000250|UniProtKB:P03315}.
CC   -!- PTM: [Spike glycoprotein E2]: Palmitoylated via thioester bonds. These
CC       palmitoylations may induce disruption of the C-terminus transmembrane.
CC       This would result in the reorientation of E2 C-terminus from lumenal to
CC       cytoplasmic side. {ECO:0000250|UniProtKB:P03315}.
CC   -!- PTM: [Spike glycoprotein E1]: N-glycosylated.
CC       {ECO:0000250|UniProtKB:P03315}.
CC   -!- PTM: [Spike glycoprotein E2]: N-glycosylated.
CC       {ECO:0000250|UniProtKB:P03315}.
CC   -!- PTM: [Assembly protein E3]: N-glycosylated.
CC       {ECO:0000250|UniProtKB:P03315}.
CC   -!- PTM: [6K protein]: Palmitoylated via thioester bonds.
CC       {ECO:0000250|UniProtKB:P03315}.
CC   -!- MISCELLANEOUS: Structural polyprotein: Translated from a subgenomic RNA
CC       synthesized during togavirus replication.
CC       {ECO:0000250|UniProtKB:Q86925}.
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DR   EMBL; AY726732; AAU43881.1; -; Genomic_RNA.
DR   PDB; 3J2W; EM; 5.00 A; E/F/G/H=1203-1248, I/J/K/L=113-261, M/N/O/P=332-666, Q/R/S/T=668-748.
DR   PDB; 5VU2; EM; 6.80 A; E/F/G/H=1203-1248, I/J/K/L=113-261, Q/R/S/T=668-748.
DR   PDB; 6NK5; EM; 4.16 A; A/B/C/D=810-1248, E/F/G/H=330-748, I/J/K/L=111-261.
DR   PDB; 6NK6; EM; 4.06 A; A/B/C/D=810-1248, E/F/G/H=330-748, I/J/K/L=111-261.
DR   PDBsum; 3J2W; -.
DR   PDBsum; 5VU2; -.
DR   PDBsum; 6NK5; -.
DR   PDBsum; 6NK6; -.
DR   BMRB; Q5XXP3; -.
DR   SMR; Q5XXP3; -.
DR   MEROPS; S03.001; -.
DR   ABCD; Q5XXP3; 2 sequenced antibodies.
DR   Proteomes; UP000008450; Genome.
DR   GO; GO:0030430; C:host cell cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0042025; C:host cell nucleus; IEA:UniProtKB-SubCell.
DR   GO; GO:0020002; C:host cell plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0039619; C:T=4 icosahedral viral capsid; IEA:UniProtKB-KW.
DR   GO; GO:0055036; C:virion membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0003723; F:RNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0004252; F:serine-type endopeptidase activity; IEA:InterPro.
DR   GO; GO:0005198; F:structural molecule activity; IEA:InterPro.
DR   GO; GO:0039654; P:fusion of virus membrane with host endosome membrane; IEA:UniProtKB-KW.
DR   GO; GO:0006508; P:proteolysis; IEA:UniProtKB-KW.
DR   GO; GO:0039722; P:suppression by virus of host toll-like receptor signaling pathway; ISS:UniProtKB.
DR   GO; GO:0046718; P:viral entry into host cell; IEA:UniProtKB-KW.
DR   GO; GO:0019062; P:virion attachment to host cell; IEA:UniProtKB-KW.
DR   Gene3D; 2.40.10.10; -; 2.
DR   Gene3D; 2.60.40.2400; -; 1.
DR   Gene3D; 2.60.40.3200; -; 1.
DR   Gene3D; 2.60.40.350; -; 1.
DR   Gene3D; 2.60.40.4310; -; 1.
DR   Gene3D; 2.60.98.10; -; 3.
DR   InterPro; IPR002548; Alpha_E1_glycop.
DR   InterPro; IPR000936; Alpha_E2_glycop.
DR   InterPro; IPR002533; Alpha_E3_glycop.
DR   InterPro; IPR042304; Alphavir_E2_A.
DR   InterPro; IPR042305; Alphavir_E2_B.
DR   InterPro; IPR042306; Alphavir_E2_C.
DR   InterPro; IPR000336; Flavivir/Alphavir_Ig-like_sf.
DR   InterPro; IPR036253; Glycoprot_cen/dimer_sf.
DR   InterPro; IPR038055; Glycoprot_E_dimer_dom.
DR   InterPro; IPR014756; Ig_E-set.
DR   InterPro; IPR009003; Peptidase_S1_PA.
DR   InterPro; IPR043504; Peptidase_S1_PA_chymotrypsin.
DR   InterPro; IPR000930; Peptidase_S3.
DR   Pfam; PF01589; Alpha_E1_glycop; 1.
DR   Pfam; PF00943; Alpha_E2_glycop; 1.
DR   Pfam; PF01563; Alpha_E3_glycop; 1.
DR   Pfam; PF00944; Peptidase_S3; 1.
DR   PRINTS; PR00798; TOGAVIRIN.
DR   SUPFAM; SSF50494; SSF50494; 1.
DR   SUPFAM; SSF56983; SSF56983; 1.
DR   SUPFAM; SSF81296; SSF81296; 1.
DR   PROSITE; PS51690; ALPHAVIRUS_CP; 1.
PE   1: Evidence at protein level;
KW   3D-structure; Capsid protein; Cleavage on pair of basic residues;
KW   Disulfide bond; Fusion of virus membrane with host endosomal membrane;
KW   Fusion of virus membrane with host membrane; Glycoprotein;
KW   Host cell membrane; Host cytoplasm; Host membrane; Host nucleus;
KW   Host-virus interaction; Hydrolase; Lipoprotein; Membrane; Palmitate;
KW   Protease; RNA-binding; Serine protease; T=4 icosahedral capsid protein;
KW   Transmembrane; Transmembrane helix; Viral attachment to host cell;
KW   Viral penetration into host cytoplasm; Virion; Virus entry into host cell.
FT   CHAIN           1..261
FT                   /note="Capsid protein"
FT                   /evidence="ECO:0000250"
FT                   /id="PRO_0000226225"
FT   CHAIN           262..748
FT                   /note="Precursor of protein E3/E2"
FT                   /evidence="ECO:0000250"
FT                   /id="PRO_0000226226"
FT   CHAIN           262..325
FT                   /note="Assembly protein E3"
FT                   /evidence="ECO:0000250"
FT                   /id="PRO_0000226227"
FT   CHAIN           326..748
FT                   /note="Spike glycoprotein E2"
FT                   /evidence="ECO:0000250"
FT                   /id="PRO_0000226228"
FT   CHAIN           749..809
FT                   /note="6K protein"
FT                   /evidence="ECO:0000250"
FT                   /id="PRO_0000226229"
FT   CHAIN           810..1248
FT                   /note="Spike glycoprotein E1"
FT                   /evidence="ECO:0000250"
FT                   /id="PRO_0000226230"
FT   TOPO_DOM        1..692
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        693..713
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        714..748
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        749..763
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        764..784
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        785..795
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        796..816
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        817..1224
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        1225..1245
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        1246..1248
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   DOMAIN          113..261
FT                   /note="Peptidase S3"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01027"
FT   REGION          14..104
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          36..68
FT                   /note="Host transcription inhibition"
FT                   /evidence="ECO:0000250|UniProtKB:P09592"
FT   REGION          84..114
FT                   /note="Binding to the viral RNA"
FT                   /evidence="ECO:0000250|UniProtKB:P27284"
FT   REGION          99..113
FT                   /note="Ribosome-binding"
FT                   /evidence="ECO:0000250|UniProtKB:P27284"
FT   REGION          183..193
FT                   /note="Dimerization of the capsid protein"
FT                   /evidence="ECO:0000250|UniProtKB:P0DOK1"
FT   REGION          219..223
FT                   /note="Dimerization of the capsid protein"
FT                   /evidence="ECO:0000250|UniProtKB:P0DOK1"
FT   REGION          262..274
FT                   /note="Functions as an uncleaved signal peptide for the
FT                   precursor of protein E3/E2"
FT                   /evidence="ECO:0000250|UniProtKB:P03315"
FT   REGION          721..741
FT                   /note="Transient transmembrane before p62-6K protein
FT                   processing"
FT                   /evidence="ECO:0000255"
FT   REGION          893..910
FT                   /note="E1 fusion peptide loop"
FT                   /evidence="ECO:0000250|UniProtKB:Q8JUX5"
FT   MOTIF           61..99
FT                   /note="Nuclear localization signal"
FT                   /evidence="ECO:0000250|UniProtKB:P09592"
FT   MOTIF           144..154
FT                   /note="Nuclear export signal"
FT                   /evidence="ECO:0000250|UniProtKB:P09592"
FT   COMPBIAS        73..87
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        88..102
FT                   /note="Basic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   ACT_SITE        139
FT                   /note="Charge relay system"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01027"
FT   ACT_SITE        161
FT                   /note="Charge relay system"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01027"
FT   ACT_SITE        213
FT                   /note="Charge relay system"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01027"
FT   SITE            187
FT                   /note="Involved in dimerization of the capsid protein"
FT                   /evidence="ECO:0000250|UniProtKB:Q86925"
FT   SITE            220
FT                   /note="Involved in dimerization of the capsid protein"
FT                   /evidence="ECO:0000250|UniProtKB:Q86925"
FT   SITE            261..262
FT                   /note="Cleavage; by autolysis"
FT                   /evidence="ECO:0000250|UniProtKB:P03315"
FT   SITE            325..326
FT                   /note="Cleavage; by host furin"
FT                   /evidence="ECO:0000250"
FT   SITE            748..749
FT                   /note="Cleavage; by host signal peptidase"
FT                   /evidence="ECO:0000250"
FT   SITE            809..810
FT                   /note="Cleavage; by host signal peptidase"
FT                   /evidence="ECO:0000250"
FT   LIPID           721
FT                   /note="S-palmitoyl cysteine; by host"
FT                   /evidence="ECO:0000250"
FT   LIPID           741
FT                   /note="S-palmitoyl cysteine; by host"
FT                   /evidence="ECO:0000250"
FT   LIPID           742
FT                   /note="S-palmitoyl cysteine; by host"
FT                   /evidence="ECO:0000250"
FT   LIPID           1242
FT                   /note="S-stearoyl cysteine; by host"
FT                   /evidence="ECO:0000250"
FT   CARBOHYD        273
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        588
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        670
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        950
FT                   /note="N-linked (GlcNAc...) asparagine; by host"
FT                   /evidence="ECO:0000255"
FT   DISULFID        113..128
FT                   /evidence="ECO:0000250"
FT   DISULFID        858..923
FT                   /evidence="ECO:0000250"
FT   DISULFID        871..903
FT                   /evidence="ECO:0000250"
FT   DISULFID        872..905
FT                   /evidence="ECO:0000250"
FT   DISULFID        877..887
FT                   /evidence="ECO:0000250"
FT   DISULFID        1068..1080
FT                   /evidence="ECO:0000250"
FT   DISULFID        1110..1185
FT                   /evidence="ECO:0000250"
FT   DISULFID        1115..1189
FT                   /evidence="ECO:0000250"
FT   DISULFID        1137..1179
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   1248 AA;  138071 MW;  A19160F7E5ED521E CRC64;
     MEFIPTQTFY NRRYQPRPWA PRPTIQVIRP RPRPQRQAGQ LAQLISAVNK LTMRAVPQQK
     PRRNRKNKKQ RQKKQAPQND PKQKKQPPQK KPAQKKKKPG RRERMCMKIE NDCIFEVKHE
     GKVMGYACLV GDKVMKPAHV KGTIDNADLA KLAFKRSSKY DLECAQIPVH MKSDASKFTH
     EKPEGYYNWH HGAVQYSGGR FTIPTGAGKP GDSGRPIFDN KGRVVAIVLG GANEGARTAL
     SVVTWNKDIV TKITPEGAEE WSLALPVLCL LANTTFPCSQ PPCTPCCYEK EPESTLRMLE
     DNVMRPGYYQ LLKASLTCSP HRQRRSTKDN FNVYKATRPY LAHCPDCGEG HSCHSPIALE
     RIRNEATDGT LKIQVSLQIG IKTDDSHDWT KLRYMDSHTP ADAERAGLLV RTSAPCTITG
     TMGHFILARC PKGETLTVGF TDSRKISHTC THPFHHEPPV IGRERFHSRP QHGKELPCST
     YVQSTAATAE EIEVHMPPDT PDRTLMTQQS GNVKITVNGQ TVRYKCNCGG SNEGLTTTDK
     VINNCKIDQC HAAVTNHKNW QYNSPLVPRN AELGDRKGKI HIPFPLANVT CRVPKARNPT
     VTYGKNQVTM LLYPDHPTLL SYRNMGQEPN YHEEWVTHKK EVTLTVPTEG LEVTWGNNEP
     YKYWPQMSTN GTAHGHPHEI ILYYYELYPT MTVVIVSVAS FVLLSMVGTA VGMCVCARRR
     CITPYELTPG ATVPFLLSLL CCVRTTKAAT YYEAAAYLWN EQQPLFWLQA LIPLAALIVL
     CNCLKLLPCC CKTLAFLAVM SIGAHTVSAY EHVTVIPNTV GVPYKTLVNR PGYSPMVLEM
     ELQSVTLEPT LSLDYITCEY KTVIPSPYVK CCGTAECKDK SLPDYSCKVF TGVYPFMWGG
     AYCFCDAENT QLSEAHVEKS ESCKTEFASA YRAHTASASA KLRVLYQGNN ITVAAYANGD
     HAVTVKDAKF VVGPMSSAWT PFDNKIVVYK GDVYNMDYPP FGAGRPGQFG DIQSRTPESK
     DVYANTQLVL QRPAAGTVHV PYSQAPSGFK YWLKERGASL QHTAPFGCQI ATNPVRAVNC
     AVGNIPISID IPDAAFTRVV DAPSVTDMSC EVPACTHSSD FGGVAIIKYT ASKKGKCAVH
     SMTNAVTIRE ADVEVEGNSQ LQISFSTALA SAEFRVQVCS TQVHCAAACH PPKDHIVNYP
     ASHTTLGVQD ISTTAMSWVQ KITGGVGLIV AVAALILIVV LCVSFSRH
 
 
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