ID   VE1_HPV21               Reviewed;         603 AA.
AC   P50759;
DT   01-OCT-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-1996, sequence version 1.
DT   03-AUG-2022, entry version 84.
DE   RecName: Full=Replication protein E1 {ECO:0000255|HAMAP-Rule:MF_04000};
DE            EC=3.6.4.12 {ECO:0000255|HAMAP-Rule:MF_04000};
DE   AltName: Full=ATP-dependent helicase E1 {ECO:0000255|HAMAP-Rule:MF_04000};
GN   Name=E1 {ECO:0000255|HAMAP-Rule:MF_04000};
OS   Human papillomavirus 21.
OC   Viruses; Monodnaviria; Shotokuvirae; Cossaviricota; Papovaviricetes;
OC   Zurhausenvirales; Papillomaviridae; Firstpapillomavirinae;
OC   Betapapillomavirus.
OX   NCBI_TaxID=31548;
OH   NCBI_TaxID=9606; Homo sapiens (Human).
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Delius H.;
RL   Submitted (OCT-1995) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: ATP-dependent DNA helicase required for initiation of viral
CC       DNA replication. It forms a complex with the viral E2 protein. The E1-
CC       E2 complex binds to the replication origin which contains binding sites
CC       for both proteins. During the initial step, a dimer of E1 interacts
CC       with a dimer of protein E2 leading to a complex that binds the viral
CC       origin of replication with high specificity. Then, a second dimer of E1
CC       displaces the E2 dimer in an ATP-dependent manner to form the E1
CC       tetramer. Following this, two E1 monomers are added to each half of the
CC       site, which results in the formation of two E1 trimers on the viral
CC       ori. Subsequently, two hexamers will be created. The double hexamer
CC       acts as a bi-directional helicase machinery and unwinds the viral DNA
CC       and then recruits the host DNA polymerase to start replication.
CC       {ECO:0000255|HAMAP-Rule:MF_04000}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + H2O = ADP + H(+) + phosphate; Xref=Rhea:RHEA:13065,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:30616,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:456216; EC=3.6.4.12;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_04000};
CC   -!- SUBUNIT: Can form hexamers. Interacts with E2 protein; this interaction
CC       increases E1 DNA binding specificity. Interacts with host DNA
CC       polymerase subunit POLA2. Interacts with host single stranded DNA-
CC       binding protein RPA1. Interacts with host TOP1; this interaction
CC       stimulates the enzymatic activity of TOP1. {ECO:0000255|HAMAP-
CC       Rule:MF_04000}.
CC   -!- SUBCELLULAR LOCATION: Host nucleus {ECO:0000255|HAMAP-Rule:MF_04000}.
CC   -!- PTM: Phosphorylated. {ECO:0000255|HAMAP-Rule:MF_04000}.
CC   -!- PTM: Sumoylated. {ECO:0000255|HAMAP-Rule:MF_04000}.
CC   -!- SIMILARITY: Belongs to the papillomaviridae E1 protein family.
CC       {ECO:0000255|HAMAP-Rule:MF_04000}.
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DR   EMBL; U31779; AAA79396.1; -; Genomic_DNA.
DR   SMR; P50759; -.
DR   PRIDE; P50759; -.
DR   Proteomes; UP000009165; Genome.
DR   GO; GO:0042025; C:host cell nucleus; IEA:UniProtKB-SubCell.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0016887; F:ATP hydrolysis activity; IEA:RHEA.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003678; F:DNA helicase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006260; P:DNA replication; IEA:UniProtKB-UniRule.
DR   Gene3D; 1.10.10.510; -; 1.
DR   Gene3D; 3.40.50.300; -; 1.
DR   HAMAP; MF_04000; PPV_E1; 1.
DR   InterPro; IPR001177; DNA_helicase_E1_C_Papillomavir.
DR   InterPro; IPR014000; DNA_helicase_E1_N_Papillomavir.
DR   InterPro; IPR014015; Helicase_SF3_DNA-vir.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   InterPro; IPR016393; Rep_E1_papillomaV.
DR   InterPro; IPR037102; Znf_lg_T-Ag_D1_dom_sf.
DR   Pfam; PF00519; PPV_E1_C; 1.
DR   Pfam; PF00524; PPV_E1_N; 1.
DR   PIRSF; PIRSF003383; Rep_E1_papillomaV; 1.
DR   SUPFAM; SSF52540; SSF52540; 1.
DR   PROSITE; PS51206; SF3_HELICASE_1; 1.
PE   3: Inferred from homology;
KW   ATP-binding; DNA replication; DNA-binding; Early protein; Helicase;
KW   Host nucleus; Hydrolase; Isopeptide bond; Nucleotide-binding;
KW   Phosphoprotein; Reference proteome; Ubl conjugation.
FT   CHAIN           1..603
FT                   /note="Replication protein E1"
FT                   /id="PRO_0000133119"
FT   DOMAIN          405..555
FT                   /note="SF3 helicase"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04000"
FT   REGION          47..68
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          143..306
FT                   /note="DNA-binding region"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04000"
FT   REGION          578..603
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   MOTIF           76..78
FT                   /note="Nuclear localization signal"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04000"
FT   MOTIF           88..97
FT                   /note="Nuclear export signal"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04000"
FT   COMPBIAS        50..68
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        588..603
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   BINDING         431..438
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04000"
FT   MOD_RES         81
FT                   /note="Phosphoserine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04000"
FT   MOD_RES         89
FT                   /note="Phosphoserine; by host"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04000"
FT   CROSSLNK        512
FT                   /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT                   G-Cter in SUMO)"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_04000"
SQ   SEQUENCE   603 AA;  68983 MW;  93006494BEF10339 CRC64;
     MADPKGSTSK EGLEDWCIVE AECSDVENDL EELFDRDTDS DISELLDDND LEQGNSRELF
     HQQESKESEE QLQKLKRKYL SPKAVAQLSP RLESITLSPQ QKSKRRLFAE QDSGLECTLT
     NEEDVSSEVE VPALDSQPVA EAQLGTVDIH YKELLRASNN KAILMAKFKE FFGVGFNDLT
     RQFKSYKTCC NAWVLSVYAV HDDLLESSKQ LLQQHCDYIW IRGIGAMSLF LLCFKVGKNR
     GTVHKLMTAM LNVHEKQIIS EPPKLRNVAA ALFWYKGAMG SGAFTYGPYP DWIAQQTIVG
     HQSTEASAFD MSAMVQWAFD NNYLDEADIA YQYAKLAPED SNAVAWLAHN NQARYVREVA
     SMVRFYKKGQ MKEMSMSEWI HTRINEVEGE GHWSTIAKFL RYQQVNFIMF LAALKDMLHS
     VPKRNCILIY GPPNTGKSAF TMSLIHVLRG RVLSFVNSKS QFWLQPMSEC KIALIDDVTD
     PCWIYMDTYL RNGLDGHVVS LDCKHKAPMQ TKFPALLLTS NINVHNEVNY RYLHSRIKGF
     EFPNPFPMKA DNTPEFELTD QSWKSFFTRL WNQLELSDQE DEGENGESQR SFQCSARSAN
     EHL