Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Entry version 83 (18 Sep 2019)
Sequence version 2 (01 Mar 1992)
Previous versions | rss
Help videoAdd a publicationFeedback
Protein

E1B 55 kDa protein

Gene

E1B

Organism
Human adenovirus C serotype 2 (HAdV-2) (Human adenovirus 2)
Status
Reviewed-Annotation score:

Annotation score:4 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the ‘protein existence’ evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Plays a major role to prevent cellular inhibition of viral genome replication. Assembles an SCF-like E3 ubiquitin ligase complex based on the cellular proteins ELOB, ELOC, CUL5 and RBX1, in cooperation with viral E4orf6. This viral RING-type ligase ubiquitinates cellular substrates and targets them to proteasomal degradation: TP53/p53, LIG4, MRE11-RAD50-NBS1 (MRN) complex, ITGA3, DAXX and BLM. Degradation of host TP53/p53 activity is essential for preventing E1A-induced TP53 accumulation that would otherwise lead to cell apoptosis and growth arrest. E1B-55K also inactivates TP53 transcription-factor activity by binding its transactivation domain. E1B-55K also functions as a SUMO1 E3 ligase for TP53 which causes the latter to be sequestered in promyelocytic leukemia (PML) nuclear bodies thereby contributing to maximal inhibition of TP53 function.By similarity

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Biological processi

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Biological processHost-virus interaction, Inhibition of host innate immune response by virus, Inhibition of host interferon signaling pathway by virus, Inhibition of host PKR by virus, Modulation of host cell apoptosis by virus, Viral immunoevasion

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
E1B 55 kDa protein
Short name:
E1B-55K
Alternative name(s):
E1B protein, large T-antigen
E1B-495R
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: ‘Name’, ‘Synonyms’, ‘Ordered locus names’ and ‘ORF names’.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:E1B
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiHuman adenovirus C serotype 2 (HAdV-2) (Human adenovirus 2)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the ‘taxonomic identifier’ or ‘taxid’.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri10515 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiVirusesAdenoviridaeMastadenovirus
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section only exists in viral entries and indicates the host(s) either as a specific organism or taxonomic group of organisms that are susceptible to be infected by a virus.<p><a href='/help/virus_host' target='_top'>More...</a></p>Virus hostiHomo sapiens (Human) [TaxID: 9606]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000008167 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">proteome</a> can consist of several components. <br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Genome

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

GO - Cellular componenti

  • host cell cytoplasm Source: UniProtKB-SubCell
  • host cell nucleus Source: UniProtKB

Keywords - Cellular componenti

Host cytoplasm, Host nucleus

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘PTM / Processing’ section describes the extent of a polypeptide chain in the mature protein following processing.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00002217241 – 495E1B 55 kDa proteinAdd BLAST495

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

Keywords - Developmental stagei

Early protein

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction_section">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Interacts with the transactivation domain of TP53 (via N-terminus); this interaction leads to the inhibition of TP53 function and/or its degradation (By similarity).

Interacts with host PML-4 and PML-5; this interaction promotes efficient subnuclear targeting of E1B-55K to PML nuclear bodies (By similarity).

Interacts with E4-ORF3 protein (PubMed:10211970).

Interacts with E4-ORF6 protein (PubMed:11070042).

Interacts with host DAXX protein; this interaction might alterate the normal interactions of DAXX, PML, and p53, which may contribute to cell transformation (By similarity).

By similarity2 Publications

<p>This subsection of the '<a href="http://www.uniprot.org/help/interaction_section%27">Interaction</a> section provides information about binary protein-protein interactions. The data presented in this section are a quality-filtered subset of binary interactions automatically derived from the <a href="http://www.ebi.ac.uk/intact/">IntAct database</a>. It is updated on a monthly basis. Each binary interaction is displayed on a separate line.<p><a href='/help/binary_interactions' target='_top'>More...</a></p>Binary interactionsi

WithEntry#Exp.IntActNotes
DAXXQ9UER74EBI-1561155,EBI-77321From Homo sapiens.

Protein-protein interaction databases

Protein interaction database and analysis system

More...
IntActi
P03244, 3 interactors

Molecular INTeraction database

More...
MINTi
P03244

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Family and Domains’ section describes the position of regions of compositional bias within the protein and the particular amino acids that are over-represented within those regions.<p><a href='/help/compbias' target='_top'>More...</a></p>Compositional biasi54 – 60Poly-Ala7

<p>This subsection of the ‘Family and domains’ section provides general information on the biological role of a domain. The term ‘domain’ is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>Domaini

Contains a PML interaction motif that allows the subnuclear PML localization.By similarity

<p>This subsection of the ‘Family and domains’ section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
2.160.20.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR006717 Adeno_E1B_55K_N
IPR002612 Adeno_E1B_55kDa
IPR012334 Pectin_lyas_fold
IPR011050 Pectin_lyase_fold/virulence

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF01696 Adeno_E1B_55K, 1 hit
PF04623 Adeno_E1B_55K_N, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF51126 SSF51126, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence_length">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequences (5)i

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

This entry describes 5 <p>This subsection of the ‘Sequence’ section lists the alternative protein sequences (isoforms) that can be generated from the same gene by a single or by the combination of up to four biological events (alternative promoter usage, alternative splicing, alternative initiation and ribosomal frameshifting). Additionally, this section gives relevant information on each alternative protein isoform.<p><a href='/help/alternative_products' target='_top'>More...</a></p> isoformsi produced by alternative splicing. AlignAdd to basket
Note: At least five different polypeptides are generated by alternative splicing of a common mRNA precursor.
Isoform E1B-495R (identifier: P03244-1) [UniParc]FASTAAdd to basket
Also known as: E1B-55K

This isoform has been chosen as the <div> <p><b>What is the canonical sequence?</b><p><a href='/help/canonical_and_isoforms' target='_top'>More...</a></p>canonicali sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

« Hide
        10         20         30         40         50
MERRNPSERG VPAGFSGHAS VESGGETQES PATVVFRPPG NNTDGGATAG
60 70 80 90 100
GSQAAAAAGA EPMEPESRPG PSGMNVVQVA ELFPELRRIL TINEDGQGLK
110 120 130 140 150
GVKRERGASE ATEEARNLTF SLMTRHRPEC VTFQQIKDNC ANELDLLAQK
160 170 180 190 200
YSIEQLTTYW LQPGDDFEEA IRVYAKVALR PDCKYKISKL VNIRNCCYIS
210 220 230 240 250
GNGAEVEIDT EDRVAFRCSM INMWPGVLGM DGVVIMNVRF TGPNFSGTVF
260 270 280 290 300
LANTNLILHG VSFYGFNNTC VEAWTDVRVR GCAFYCCWKG VVCRPKSRAS
310 320 330 340 350
IKKCLFERCT LGILSEGNSR VRHNVASDCG CFMLVKSVAV IKHNMVCGNC
360 370 380 390 400
EDRASQMLTC SDGNCHLLKT IHVASHSRKA WPVFEHNILT RCSLHLGNRR
410 420 430 440 450
GVFLPYQCNL SHTKILLEPE SMSKVNLNGV FDMTMKIWKV LRYDETRTRC
460 470 480 490
RPCECGGKHI RNQPVMLDVT EELRPDHLVL ACTRAEFGSS DEDTD
Length:495
Mass (Da):54,909
Last modified:March 1, 1992 - v2
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:iD6665B27183720CC
GO
Isoform E1B-155R (identifier: P03244-2)
Also known as: E1B-18K
Sequence is not available
Length:
Mass (Da):
Isoform E1B-92R (identifier: P03244-3)
Also known as: E1B-16K
Sequence is not available
Length:
Mass (Da):
Isoform E1B-82R (identifier: P03244-4)
Also known as: E1B-15K
Sequence is not available
Length:
Mass (Da):
Isoform E1B-175R (identifier: P03247-1) [UniParc]FASTAAdd to basket
Also known as: E1B-19K
The sequence of this isoform can be found in the external entry P03247.
Isoforms of the same protein are often annotated in two different entries if their sequences differ significantly.
Length:175
Mass (Da):20,514
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

More...
GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
J01917 Genomic DNA Translation: AAA92201.1
J01917 Genomic DNA Translation: AAA92202.1
J01917 Genomic DNA Translation: AAA92203.1

Protein sequence database of the Protein Information Resource

More...
PIRi
B03809 Q1AD52

NCBI Reference Sequences

More...
RefSeqi
AP_000163.1, AC_000007.1 [P03244-1]
NP_040511.1, NC_001405.1

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
2652981

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
vg:2652981

Keywords - Coding sequence diversityi

Alternative splicing

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
J01917 Genomic DNA Translation: AAA92201.1
J01917 Genomic DNA Translation: AAA92202.1
J01917 Genomic DNA Translation: AAA92203.1
PIRiB03809 Q1AD52
RefSeqiAP_000163.1, AC_000007.1 [P03244-1]
NP_040511.1, NC_001405.1

3D structure databases

Database of comparative protein structure models

More...
ModBasei
Search...

SWISS-MODEL Interactive Workspace

More...
SWISS-MODEL-Workspacei
Submit a new modelling project...

Protein-protein interaction databases

IntActiP03244, 3 interactors
MINTiP03244

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi2652981
KEGGivg:2652981

Family and domain databases

Gene3Di2.160.20.10, 1 hit
InterProiView protein in InterPro
IPR006717 Adeno_E1B_55K_N
IPR002612 Adeno_E1B_55kDa
IPR012334 Pectin_lyas_fold
IPR011050 Pectin_lyase_fold/virulence
PfamiView protein in Pfam
PF01696 Adeno_E1B_55K, 1 hit
PF04623 Adeno_E1B_55K_N, 1 hit
SUPFAMiSSF51126 SSF51126, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the ‘Entry information’ section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiE1B55_ADE02
<p>This subsection of the ‘Entry information’ section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called ‘Primary (citable) accession number’.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: P03244
Secondary accession number(s): Q67789, Q67790
<p>This subsection of the ‘Entry information’ section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification (‘Last modified’). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 21, 1986
Last sequence update: March 1, 1992
Last modified: September 18, 2019
This is version 83 of the entry and version 2 of the sequence. See complete history.
<p>This subsection of the ‘Entry information’ section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programViral Protein Annotation Program

<p>This section contains any relevant information that doesn’t fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

We'd like to inform you that we have updated our Privacy Notice to comply with Europe’s new General Data Protection Regulation (GDPR) that applies since 25 May 2018.

Do not show this banner again