VE2_HPV32
ID VE2_HPV32 Reviewed; 394 AA.
AC P36791;
DT 01-JUN-1994, integrated into UniProtKB/Swiss-Prot.
DT 01-JUN-1994, sequence version 1.
DT 23-FEB-2022, entry version 118.
DE RecName: Full=Regulatory protein E2 {ECO:0000255|HAMAP-Rule:MF_04001};
GN Name=E2 {ECO:0000255|HAMAP-Rule:MF_04001};
OS Human papillomavirus type 32.
OC Viruses; Monodnaviria; Shotokuvirae; Cossaviricota; Papovaviricetes;
OC Zurhausenvirales; Papillomaviridae; Firstpapillomavirinae;
OC Alphapapillomavirus.
OX NCBI_TaxID=333763;
OH NCBI_TaxID=9606; Homo sapiens (Human).
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX PubMed=8205838; DOI=10.1007/978-3-642-78487-3_2;
RA Delius H., Hofmann B.;
RT "Primer-directed sequencing of human papillomavirus types.";
RL Curr. Top. Microbiol. Immunol. 186:13-31(1994).
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; X74475; CAA52552.1; -; Genomic_DNA.
DR PIR; S36512; S36512.
DR RefSeq; NP_041804.1; NC_001586.1.
DR SMR; P36791; -.
DR IntAct; P36791; 28.
DR MINT; P36791; -.
DR PRIDE; P36791; -.
DR GeneID; 1489423; -.
DR KEGG; vg:1489423; -.
DR Proteomes; UP000009117; 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..394
FT /note="Regulatory protein E2"
FT /id="PRO_0000133212"
FT REGION 1..201
FT /note="Transactivation domain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04001"
FT REGION 226..309
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 307..394
FT /note="DNA-binding domain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_04001"
FT COMPBIAS 226..240
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 258..274
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 284..309
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 394 AA; 45038 MW; 113C46119C2265E7 CRC64;
METLAKRLDA CQEQLLELYE EDSKHLEKHV QHWKCLRIEA ALLFKAREMG YAQVGHQIVP
ALEISRAKAH VAIEIQLALE TLLQSTFGTE PWTLQETSYE MWHAEPKKCL KKQGRTVEVV
FDGNPENAMH YTAWTFIYVQ TLDGTWCKVY GHVCYAGLYY IVDNMKQFYC NFKNEAKKYG
VTGQWEVHDG TQVIVSPASI SSTTTTEAEV SSSGLTELVQ TTDLYNTTPT PTTITRSNCD
PDGTDGILYK DPTPTTPPRK RYRQSLQPPT KHLQHYGVTN VPVDPGSQRV TSDNNNNQRR
NPCGNQTTPV IHLQGDPNCL KCLRWRLKKN CSHLFTQVSS TWHLTEKDYT RDSKDGIITI
HYYNEEQRDK FLSTVKLPPG IKSCIGYMSM LQFM
