VE2_BPV3
ID VE2_BPV3 Reviewed; 414 AA.
AC Q8BDD6;
DT 04-JAN-2005, integrated into UniProtKB/Swiss-Prot.
DT 01-MAR-2003, sequence version 1.
DT 02-JUN-2021, entry version 90.
DE RecName: Full=Regulatory protein E2 {ECO:0000255|HAMAP-Rule:MF_04001};
GN Name=E2 {ECO:0000255|HAMAP-Rule:MF_04001};
OS Bovine papillomavirus type 3.
OC Viruses; Monodnaviria; Shotokuvirae; Cossaviricota; Papovaviricetes;
OC Zurhausenvirales; Papillomaviridae; Firstpapillomavirinae;
OC Xipapillomavirus.
OX NCBI_TaxID=10561;
OH NCBI_TaxID=9913; Bos taurus (Bovine).
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX PubMed=12208979; DOI=10.1128/jvi.76.19.10020-10023.2002;
RA Terai M., DeSalle R., Burk R.D.;
RT "Lack of canonical E6 and E7 open reading frames in bird papillomaviruses:
RT Fringilla coelebs papillomavirus and Psittacus erithacus timneh
RT papillomavirus.";
RL J. Virol. 76:10020-10023(2002).
RN [2]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA Delius H., de Villiers E.M.;
RT "Sequencing of the complete genomes of BPV 3, BPV 5 and BPV 6.";
RL Submitted (JAN-2004) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Plays a role in the initiation of viral DNA replication. A
CC dimer of E2 interacts with a dimer of E1 in order to improve
CC specificity of E1 DNA binding activity. Once the complex recognizes and
CC binds DNA at specific sites, the E2 dimer is removed from DNA. E2 also
CC regulates viral transcription through binding to the E2RE response
CC element (5'-ACCNNNNNNGGT-3') present in multiple copies in the
CC regulatory regions of the viral genome. Activates or represses
CC transcription depending on E2RE's position with regards to proximal
CC promoter elements including the TATA-box. Repression occurs by
CC sterically hindering the assembly of the transcription initiation
CC complex. {ECO:0000255|HAMAP-Rule:MF_04001}.
CC -!- SUBUNIT: Binds DNA as homodimer. Interacts with protein E1; this
CC interaction greatly increases E1 DNA-binding activity. Interacts with
CC protein L1; this interaction enhances E2-dependent replication and
CC transcription activation. Interacts with protein L2; this interaction
CC inhibits E2 transcriptional activity but not DNA replication function
CC E2. Interacts with protein E7; this interaction inhibits E7 oncogenic
CC activity. Interacts with host TAF1; this interaction modulates E2-
CC dependent transcriptional regulation. Interacts with host BRD4; this
CC interaction mediates E2 transcriptional activation function.
CC Additionally, the interaction with host BRD4 on mitotic chromosomes
CC mediates tethering of the viral genome. Interacts with host TOPBP1;
CC this interaction is required for optimal viral DNA replication.
CC {ECO:0000255|HAMAP-Rule:MF_04001}.
CC -!- SUBCELLULAR LOCATION: Host nucleus {ECO:0000255|HAMAP-Rule:MF_04001}.
CC -!- PTM: Phosphorylated. {ECO:0000255|HAMAP-Rule:MF_04001}.
CC -!- SIMILARITY: Belongs to the papillomaviridae E2 protein family.
CC {ECO:0000255|HAMAP-Rule:MF_04001}.
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DR EMBL; AF486184; AAN09958.1; -; Genomic_DNA.
DR EMBL; AJ620207; CAF05680.1; -; Genomic_DNA.
DR RefSeq; NP_694448.1; NC_004197.1.
DR SMR; Q8BDD6; -.
DR GeneID; 955387; -.
DR KEGG; vg:955387; -.
DR Proteomes; UP000006369; Genome.
DR Proteomes; UP000185274; Genome.
DR GO; GO:0042025; C:host cell nucleus; IEA:UniProtKB-SubCell.
DR GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0003700; F:DNA-binding transcription factor activity; IEA:UniProtKB-UniRule.
DR GO; GO:0000166; F:nucleotide binding; IEA:UniProtKB-UniRule.
DR GO; GO:0006260; P:DNA replication; IEA:UniProtKB-KW.
DR GO; GO:0006275; P:regulation of DNA replication; IEA:UniProtKB-UniRule.
DR GO; GO:0006351; P:transcription, DNA-templated; IEA:UniProtKB-UniRule.
DR GO; GO:0039693; P:viral DNA genome replication; IEA:UniProtKB-UniRule.
DR Gene3D; 1.10.287.30; -; 1.
DR Gene3D; 2.170.200.10; -; 1.
DR Gene3D; 3.30.70.330; -; 1.
DR HAMAP; MF_04001; PPV_E2; 1.
DR InterPro; IPR035975; E2/EBNA1_C_sf.
DR InterPro; IPR012677; Nucleotide-bd_a/b_plait_sf.
DR InterPro; IPR000427; Papillomavirus_E2_C.
DR InterPro; IPR001866; Papillomavirus_E2_N.
DR InterPro; IPR033668; Reg_prot_E2.
DR InterPro; IPR036050; Regulatory_protein_E2_N.
DR InterPro; IPR042503; Regulatory_protein_E2_N_1.
DR InterPro; IPR042504; Regulatory_protein_E2_N_2.
DR Pfam; PF00511; PPV_E2_C; 1.
DR Pfam; PF00508; PPV_E2_N; 1.
DR SUPFAM; SSF51332; SSF51332; 1.
DR SUPFAM; SSF54957; SSF54957; 1.
PE 3: Inferred from homology;
KW Activator; DNA replication; DNA-binding; Early protein; Host nucleus;
KW Phosphoprotein; Reference proteome; Repressor; Transcription;
KW Transcription regulation.
FT CHAIN 1..414
FT /note="Regulatory protein E2"
FT /id="PRO_0000133174"
FT REGION 1..202
FT /note="Transactivation domain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04001"
FT REGION 196..317
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 331..414
FT /note="DNA-binding domain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04001"
FT COMPBIAS 247..261
FT /note="Basic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 414 AA; 46290 MW; 199FFFF638CD5274 CRC64;
METLQARFDA VQEQLLEIYE QDTSSLDVQI TYWTLIRHEQ ALYYYARRQG ILRLGIYQVP
PTGVSEKKAK DAIKMTLFLK SLQKSEFAAQ PWSLPETSLE RFLAAPENTF KKRGQHVTVI
YDKDSMNAME YTLWTEIYAV DDNDQWHKYT SGVDYDGIYF TDAQGNKNYY VSFADDAALY
SKLGHWEVQY ENQVLSPPVT SSLPPGPNRR RGPQTRGHPR HKSASFRRSA SSGSDTRDSR
GRSRSPSSSR SRSRSRSRSP SGSHSRPRAP HVPDQETGRP PGGGGRRGSR DQQQGPGGPA
PPSPGEVGTR SGPPETKAKG RLAELISAAY DPPVLLLQGC ANTLKSFRRR TTQSYPHTFL
CMSTSWTWAS KTCTVKSGHR MLVAFVNSEQ RTLFLATVKI PKGVTCLKGS FDGL
