ID POLG_AEVCA Reviewed; 2134 AA. AC Q9YLS4; DT 13-NOV-2007, integrated into UniProtKB/Swiss-Prot. DT 01-MAY-1999, sequence version 1. DT 24-JAN-2024, entry version 129. DE RecName: Full=Genome polyprotein; 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=Protein 2A; DE Short=P2A; 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; DE Contains: DE RecName: Full=Protein 3A; DE Short=P3A; DE Contains: DE RecName: Full=Protein 3B; DE Short=P3B; DE AltName: Full=VPg; DE Contains: DE RecName: Full=Protease 3C; DE Short=P3C; DE EC=3.4.22.28; DE AltName: Full=Picornain 3C; DE Contains: DE RecName: Full=RNA-directed RNA polymerase 3D-POL; DE Short=P3D-POL; DE EC=2.7.7.48; OS Avian encephalomyelitis virus (strain Calnek vaccine) (AEV). OC Viruses; Riboviria; Orthornavirae; Pisuviricota; Pisoniviricetes; OC Picornavirales; Picornaviridae; Heptrevirinae; Tremovirus; Tremovirus A. OX NCBI_TaxID=475778; OH NCBI_TaxID=8835; Anas (ducks). OH NCBI_TaxID=9031; Gallus gallus (Chicken). OH NCBI_TaxID=9005; Phasianidae (turkeys). RN [1] RP NUCLEOTIDE SEQUENCE [MRNA]. RX PubMed=10092005; DOI=10.1099/0022-1317-80-3-653; RA Marvil P., Knowles N.J., Mockett A.P., Britton P., Brown T.D.K., RA Cavanagh D.; RT "Avian encephalomyelitis virus is a picornavirus and is most closely RT related to hepatitis A virus."; RL J. Gen. Virol. 80:653-662(1999). CC -!- FUNCTION: Capsid proteins VP1, VP2, and VP3 form a closed capsid CC enclosing the viral positive strand RNA genome. All these proteins CC contain a beta-sheet structure called beta-barrel jelly roll. Together CC they form an icosahedral capsid (T=3) composed of 60 copies of each CC VP1, VP2, and VP3, with a diameter of approximately 300 Angstroms. VP1 CC is situated at the 12 fivefold axes, whereas VP2 and VP3 are located at CC the quasi-sixfold axes (By similarity). {ECO:0000250}. CC -!- FUNCTION: [Capsid protein VP0]: VP0 precursor is a component of CC immature procapsids. The N-terminal domain of VP0, protein VP4, is CC needed for the assembly of 12 pentamers into the icosahedral structure. CC Unlike other picornaviruses, AEV VP4 may not be myristoylated (By CC similarity). {ECO:0000250}. CC -!- FUNCTION: Protein 2B and 2BC precursor affect membrane integrity and CC cause an increase in membrane permeability. {ECO:0000250}. CC -!- FUNCTION: [Protein 2C]: Associates with and induces structural CC rearrangements of intracellular membranes. It displays RNA-binding, CC nucleotide binding and NTPase activities (By similarity). CC {ECO:0000250}. CC -!- FUNCTION: Protein 3A, via its hydrophobic domain, serves as membrane CC anchor. {ECO:0000250}. CC -!- FUNCTION: Protein 3B is covalently linked to the 5'-end of both the CC positive-strand and negative-strand genomic RNAs. It acts as a genome- CC linked replication primer (By similarity). {ECO:0000250}. CC -!- FUNCTION: [Protease 3C]: Cysteine protease that generates mature viral CC proteins from the precursor polyprotein. In addition to its proteolytic CC activity, it binds to viral RNA, and thus influences viral genome CC replication. RNA and substrate bind cooperatively to the protease (By CC similarity). {ECO:0000250}. CC -!- FUNCTION: RNA-directed RNA polymerase 3D-POL replicates genomic and CC antigenomic RNA by recognizing replications specific signals. CC {ECO:0000255|PROSITE-ProRule:PRU00539}. CC -!- CATALYTIC ACTIVITY: 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: 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 -!- CATALYTIC ACTIVITY: 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 -!- SUBCELLULAR LOCATION: [Capsid protein VP2]: Virion. Host cytoplasm CC {ECO:0000305}. CC -!- SUBCELLULAR LOCATION: [Capsid protein VP3]: Virion. Host cytoplasm CC {ECO:0000305}. CC -!- SUBCELLULAR LOCATION: [Capsid protein VP1]: Virion. Host cytoplasm CC {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 (By similarity). {ECO:0000250}. 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. May associate with membranes through a N- CC terminal amphipathic helix (By similarity). {ECO:0000250}. 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 (By similarity). {ECO:0000250}. CC -!- SUBCELLULAR LOCATION: [Protein 3B]: Virion {ECO:0000305}. CC -!- SUBCELLULAR LOCATION: [Protease 3C]: Host cytoplasm {ECO:0000305}. CC -!- SUBCELLULAR LOCATION: [RNA-directed RNA polymerase 3D-POL]: Host CC cytoplasmic vesicle membrane {ECO:0000305}; Peripheral membrane protein CC {ECO:0000305}; Cytoplasmic side {ECO:0000305}. Note=Interacts with CC membranes in a complex with viral protein 3AB. Probably localizes to CC the surface of intracellular membrane vesicles that are induced after CC virus infection as the site for viral RNA replication. These vesicles CC are derived from the endoplasmic reticulum (By similarity). CC {ECO:0000250}. CC -!- PTM: Specific enzymatic cleavages by the viral protease in vivo yield a CC variety of precursors and mature proteins. During virion maturation, CC non-infectious particles are rendered infectious following cleavage of CC VP0. This maturation cleavage is followed by a conformational change of CC the particle (By similarity). {ECO:0000250}. CC -!- PTM: VPg is uridylylated by the polymerase and is covalently linked to CC the 5'-end of genomic RNA. This uridylylated form acts as a nucleotide- CC peptide primer for the polymerase (By similarity). {ECO:0000250}. CC -!- SIMILARITY: Belongs to the picornaviridae polyprotein family. CC {ECO:0000305}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; AJ225173; CAA12416.1; -; mRNA. DR RefSeq; NP_653151.1; NC_003990.1. DR SMR; Q9YLS4; -. DR MEROPS; C03.005; -. DR TCDB; 1.A.122.1.2; the avian encephalomyelitis virus protein 3a (aev-3a) family. DR GeneID; 944582; -. DR KEGG; vg:944582; -. DR Proteomes; UP000000357; Segment. DR GO; GO:0044162; C:host cell cytoplasmic vesicle membrane; IEA:UniProtKB-SubCell. DR GO; GO:0016020; C:membrane; IEA:UniProtKB-KW. DR GO; GO:0019028; C: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: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:0006351; P:DNA-templated transcription; IEA:InterPro. DR GO; GO:0051259; P:protein complex oligomerization; IEA:UniProtKB-KW. DR GO; GO:0006508; P:proteolysis; IEA:UniProtKB-KW. DR GO; GO:0046718; P:viral entry into host cell; 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; cd23193; ps-ssRNA_Picornaviridae; 1. DR CDD; cd00205; rhv_like; 2. DR Gene3D; 1.20.960.20; -; 1. DR Gene3D; 2.60.120.20; -; 3. DR Gene3D; 3.30.70.270; -; 1. DR Gene3D; 3.90.1720.10; endopeptidase domain like (from Nostoc punctiforme); 1. DR Gene3D; 3.40.50.300; P-loop containing nucleotide triphosphate hydrolases; 1. DR Gene3D; 2.40.10.10; Trypsin-like serine proteases; 2. DR InterPro; IPR043502; DNA/RNA_pol_sf. DR InterPro; IPR000605; Helicase_SF3_ssDNA/RNA_vir. DR InterPro; IPR014759; Helicase_SF3_ssRNA_vir. DR InterPro; IPR024354; Hepatitis_A_VP1-2A. DR InterPro; IPR007053; LRAT_dom. DR InterPro; IPR027417; P-loop_NTPase. DR InterPro; IPR044067; PCV_3C_PRO. DR InterPro; IPR000199; Peptidase_C3A/C3B_picornavir. DR InterPro; IPR009003; Peptidase_S1_PA. DR InterPro; IPR043504; Peptidase_S1_PA_chymotrypsin. 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; PF12944; HAV_VP; 1. DR Pfam; PF04970; LRAT; 1. DR Pfam; PF00548; Peptidase_C3; 1. DR Pfam; PF00680; RdRP_1; 1. DR Pfam; PF00073; Rhv; 2. 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; 3. DR SUPFAM; SSF50494; Trypsin-like serine proteases; 1. DR PROSITE; PS51934; LRAT; 1. DR PROSITE; PS51874; PCV_3C_PRO; 1. DR PROSITE; PS50507; RDRP_SSRNA_POS; 1. DR PROSITE; PS51218; SF3_HELICASE_2; 1. PE 2: Evidence at transcript level; KW ATP-binding; Capsid protein; Covalent protein-RNA linkage; Helicase; KW Host cytoplasm; Host cytoplasmic vesicle; Host membrane; KW Host-virus interaction; Hydrolase; Ion channel; Ion transport; Membrane; KW Nucleotide-binding; Nucleotidyltransferase; Phosphoprotein; Protease; KW Reference proteome; RNA-binding; RNA-directed RNA polymerase; KW Thiol protease; Transferase; Transport; Viral attachment to host cell; KW Viral ion channel; Viral RNA replication; Virion; KW Virus entry into host cell. FT CHAIN 1..2134 FT /note="Genome polyprotein" FT /id="PRO_0000310495" FT CHAIN 1..242 FT /note="Capsid protein VP0" FT /evidence="ECO:0000255" FT /id="PRO_0000310496" FT CHAIN 1..19 FT /note="Capsid protein VP4" FT /evidence="ECO:0000255" FT /id="PRO_0000310497" FT CHAIN 20..242 FT /note="Capsid protein VP2" FT /evidence="ECO:0000255" FT /id="PRO_0000310498" FT CHAIN 243..487 FT /note="Capsid protein VP3" FT /evidence="ECO:0000255" FT /id="PRO_0000310499" FT CHAIN 488..757 FT /note="Capsid protein VP1" FT /evidence="ECO:0000255" FT /id="PRO_0000310500" FT CHAIN 758..806 FT /note="Protein 2A" FT /evidence="ECO:0000255" FT /id="PRO_0000310501" FT CHAIN 807..1021 FT /note="Protein 2B" FT /evidence="ECO:0000255" FT /id="PRO_0000310502" FT CHAIN 1022..1347 FT /note="Protein 2C" FT /evidence="ECO:0000255" FT /id="PRO_0000310503" FT CHAIN 1348..1412 FT /note="Protein 3A" FT /evidence="ECO:0000255" FT /id="PRO_0000310504" FT CHAIN 1413..1433 FT /note="Protein 3B" FT /evidence="ECO:0000255" FT /id="PRO_0000310505" FT CHAIN 1434..1648 FT /note="Protease 3C" FT /evidence="ECO:0000255" FT /id="PRO_0000310506" FT CHAIN 1649..2134 FT /note="RNA-directed RNA polymerase 3D-POL" FT /evidence="ECO:0000255" FT /id="PRO_0000310507" FT TOPO_DOM 1..1377 FT /note="Cytoplasmic" FT /evidence="ECO:0000255" FT INTRAMEM 1378..1392 FT /evidence="ECO:0000255" FT TOPO_DOM 1393..2134 FT /note="Cytoplasmic" FT /evidence="ECO:0000255" FT DOMAIN 781..882 FT /note="LRAT" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01283" FT DOMAIN 1127..1289 FT /note="SF3 helicase" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00551" FT DOMAIN 1431..1643 FT /note="Peptidase C3" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01222" FT DOMAIN 1880..2001 FT /note="RdRp catalytic" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00539" FT ACT_SITE 791 FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01283" FT ACT_SITE 802 FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01283" FT ACT_SITE 863 FT /note="Acyl-thioester intermediate" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01283" FT ACT_SITE 1477 FT /note="For protease 3C activity" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01222" FT ACT_SITE 1515 FT /note="For protease 3C activity" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01222" FT ACT_SITE 1603 FT /note="For protease 3C activity" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01222" FT BINDING 1153..1160 FT /ligand="ATP" FT /ligand_id="ChEBI:CHEBI:30616" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00551" FT SITE 19..20 FT /note="Cleavage" FT /evidence="ECO:0000255" FT SITE 242..243 FT /note="Cleavage; by protease 3C" FT /evidence="ECO:0000255" FT SITE 487..488 FT /note="Cleavage; by protease 3C" FT /evidence="ECO:0000255" FT SITE 757..758 FT /note="Cleavage; by host" FT /evidence="ECO:0000255" FT SITE 806..807 FT /note="Cleavage; by protease 3C" FT /evidence="ECO:0000250" FT SITE 1021..1022 FT /note="Cleavage; by protease 3C" FT /evidence="ECO:0000255" FT SITE 1347..1348 FT /note="Cleavage; by protease 3C" FT /evidence="ECO:0000255" FT SITE 1412..1413 FT /note="Cleavage; by protease 3C" FT /evidence="ECO:0000255" FT SITE 1433..1434 FT /note="Cleavage; by protease 3C" FT /evidence="ECO:0000255" FT SITE 1648..1649 FT /note="Cleavage; by protease 3C" FT /evidence="ECO:0000250" FT MOD_RES 1415 FT /note="O-(5'-phospho-RNA)-tyrosine" FT /evidence="ECO:0000250" SQ SEQUENCE 2134 AA; 238980 MW; 5BD829687E1ED30D CRC64; MSKLFSTVGK TVDEVLSVLN DENTESYAGP DRTAVVGGGF LTTVDQSSVS TATMGSLQDV QYRTAVDIPG SRVTQGERFF LIDQREWNST QSEWQLLGKI DIVKELLDQS YAVDGLLKYH SYARFGLDVI VQINPTSFQA GGLIAALVPY DQVDIESIAA MTTYCHGKLN CNINNVVRMK VPYIYSRGCY NLRNSAYSIW MLVIRVWSQL QLGSGTSTQI TVTTLARFVD LELHGLSPLV AQMMRNEFRL SSSSNIVNLA NYEDARAKVS LALGQEEFSR DSSSTGGELL HHFSQWTSIP CLAFTFTFPG TVGPGTQIWS TTVDPFSCNL RASSTVHPTN LSSIAGMFCF WRGDIVFEFQ VFCTKYHSGR LMFVYVPGDE NTKISTLTAK QASSGLTAVF DINGVNSTLV FRCPFISDTP YRVNPTTHKS LWPYATGKLV CYVYNRLNAP ASVSPSVSIN VYKSAVDLEL YAPVYGVSPT NTSVFAQGKE DEGGFSSVPE VEQHVVEDKE PQGPLHVTPF GAVKAMEDPQ LARKTPGTFP ELAPGKPRHT VDHMDLYKFM GRAHYLWGHK FTKTDMQYTF QIPLSPIKEG FVTGTLRWFL SLFQLYRGSL DITMTFAGKT NVDGIVYFVP EGVAIETERE EQTPLLTLNY KTSVGAIRFN TGQTTNVQFR IPFYTPLEHI ATHSKNAMDS VLGAITTQIT NYSAQDEYLQ VTYYISFNED SQFSVPRAVP VVSSFTDTSS KTVMNTYWLD DDELVEESSH SSFDEIEEAQ CSKCKMDLGD IVSCSGEKAK HFGVYVGDGV VHVDPEGNAT NWFMKRKATV KKSKNLDKWC FALSPRIDRT LICETANLMV GREVEYDIFV KNCETYARGI ASGDYGTKEG EKWKTLLSAV GVAAMTTTMM AMRHELLDTS LTKLPQKVGE VTNEVRKILE DTSAGVREFK EKVSSILRKT WPGKTSIKIM KWTCRIVKMC VGVGLCYAHG WDSKTVTAVV TMFSMDFLDL VIDGIEIGRM IIDELTTPKA QGLSEINQVL SIAKNAKDVI KMLIEIFCKV IERITGEHGK KIQWAQDKKE EIMNVLERAE KWITTSDDHS EGIECLKLVR SIQSVIRGEE SLKELAGELR AVGTHVLNKL GRLDKPNAPI LVRAEPTVLY LYGNRGGGKS LASMAIAVKL CKELGISHVE GIYTKPIMSD FWDGYAGQPV VIMDDLGQST SDEDWTNFCQ LVSSCPLRLN MANLEKKGTQ FNSPFIIASS NLSHPCPKTV YCTDAIARRL HIKVKVSPKE EFSTHAMLDV AKAKKAGAYC NLDCLDFQKI SDLASTPVSV QDIVLEMLHT NVDKQTLMGD IIQYWAQSNP REVFDTMAEG KNSGKYLWLF EKIKTSKWYI LGCVGAVLSV SVLGVFAYHM IKNHFRDQQH DQSAYSAAIK PLRVVRLEQS DAQSVVDISN VVHGNLVRVG VGPNEARIHW LYNGLGVYDT YILMPYHGIK DADVDDDLYI ERAGTIYSTN MKMVQVLFLE SREGDLVLIN VPRLPKFRDI RNHFSTEENI RRAEGMPGTL CTLDHERFTL VTESDLKMVE AATYVCEDDK GVRTDISVGR SWKAKACTVA GMCGGALVTS NNKMQNAIVG IHVAGGAHAI SRVITKEMIE EMLKTRAQCS RIWKTEFVEE KISVGSKTKY HKSPLYDFCP QEVIKCPTKL FYQGEIDVMQ VMLAKYSSPI VSEPLGYATV VEAYTNRMVS FFSEPRQLTY DECINGIEGL DAIDLKTSAG FPYNTLGLRK SDLIINGKMA QRLQQDVEKM EEDLHMNRSI QVVFTTCAKD ELRPLSKVML GKTRAIEACP VSFTILFRRY LGYALAQIQS HPGFHTGIAV GVDPDQDWHC MWYSIVTQCD LVVGLDFSNY DASLSPFMIY HAGRVLGQIC GLDPRLVDRI MEPIVNSVHQ LGSMRYYVHG SMPSGTPATS VLNSIINVVN ICHVLCALEK ISVFEVFKLF KILTYGDDVL LCIKKEYLDQ KSFPLSSFVQ GLEELGLSPT GADKMEVKVT PVHKMSFLKR TFYVDEWSIC HPRISEETVY SMLAWKSDNA SMKDLIETSI WFMFHHGPRK YVRFCTWLRG VLCRVGIGLY IPTYKELEVR YDRLVKYRFI DDSF //