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Entry version 111 (26 Feb 2020)
Sequence version 1 (01 Nov 1996)
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Protein

Retinoblastoma-associated protein

Gene

RB1

Organism
Gallus gallus (Chicken)
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

Key regulator of entry into cell division that acts as a tumor suppressor. Acts as a transcription repressor of E2F1 target genes. Directly involved in heterochromatin formation by maintaining overall chromatin structure and, in particular, that of constitutive heterochromatin by stabilizing histone methylation. Recruits and targets histone methyltransferases SUV39H1, KMT5B and KMT5C, leading to epigenetic transcriptional repression. Controls histone H4 'Lys-20' trimethylation. Also acts as a transcription repressor of E2F target genes by recruiting chromatin-modifying enzymes to promoters (By similarity).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 - Molecular functioni

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

Molecular functionChromatin regulator, DNA-binding, Repressor
Biological processCell cycle, Host-virus interaction, Transcription, Transcription regulation

<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%5Fand%5Ftaxonomy%5Fsection">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:
Retinoblastoma-associated protein
Alternative name(s):
p104
pRb
Short name:
Rb
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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:RB1
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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>OrganismiGallus gallus (Chicken)
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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 identifieri9031 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiArchelosauriaArchosauriaDinosauriaSaurischiaTheropodaCoelurosauriaAvesNeognathaeGalloanseraeGalliformesPhasianidaePhasianinaeGallus
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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
  • UP000000539 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes%5Fmanual">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: Unplaced

<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

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte & Seán O’Donoghue; Source: COMPARTMENTS

Keywords - Cellular componenti

Nucleus

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

Keywords - Diseasei

Tumor suppressor

<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_00003316191 – 921Retinoblastoma-associated proteinAdd BLAST921

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM/processing</a> section describes post-translational modifications (PTMs). This subsection <strong>complements</strong> the information provided at the sequence level or describes modifications for which <strong>position-specific data is not yet available</strong>.<p><a href='/help/post-translational_modification' target='_top'>More...</a></p>Post-translational modificationi

Phosphorylated in G1, thereby releasing E2F1 which is then able to activate cell growth. Dephosphorylated at the late M phase. Phosphorylation of domain C promotes interaction between the C-terminal domain C and the Pocket domain, and thereby inhibits interactions with heterodimeric E2F/DP transcription factor complexes (By similarity).By similarity

Keywords - PTMi

Phosphoprotein

Proteomic databases

PaxDb, a database of protein abundance averages across all three domains of life

More...
PaxDbi
Q90600

PRoteomics IDEntifications database

More...
PRIDEi
Q90600

<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%5Fsection">'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%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Interacts with and sequesters the E2F1 transcription factor.

Interacts with SUV39H1, KMT5B and KMT5C (By similarity).

By similarity

(Microbial infection) Interacts with, and is inhibited by fowl adenovirus 1 protein GAM-1.

1 Publication

GO - Molecular functioni

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
9031.ENSGALP00000027407

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...
SMRi
Q90600

Database of comparative protein structure models

More...
ModBasei
Search...

<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

Motif

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a short (usually not more than 20 amino acids) conserved sequence motif of biological significance.<p><a href='/help/motif' target='_top'>More...</a></p>Motifi853 – 869Bipartite nuclear localization signalBy similarityAdd BLAST17

<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

Belongs to the retinoblastoma protein (RB) family.Curated

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG1010 Eukaryota
ENOG410XQF7 LUCA

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q90600

KEGG Orthology (KO)

More...
KOi
K06618

Database of Orthologous Groups

More...
OrthoDBi
113612at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
Q90600

Family and domain databases

Conserved Domains Database

More...
CDDi
cd00043 CYCLIN, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR013763 Cyclin-like
IPR036915 Cyclin-like_sf
IPR033057 RB1
IPR002720 RB_A
IPR002719 RB_B
IPR015030 RB_C
IPR028309 RB_fam
IPR024599 RB_N

The PANTHER Classification System

More...
PANTHERi
PTHR13742 PTHR13742, 1 hit
PTHR13742:SF29 PTHR13742:SF29, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF11934 DUF3452, 1 hit
PF01858 RB_A, 1 hit
PF01857 RB_B, 1 hit
PF08934 Rb_C, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00385 CYCLIN, 1 hit
SM01367 DUF3452, 1 hit
SM01368 RB_A, 1 hit
SM01369 Rb_C, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF47954 SSF47954, 2 hits

<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%5Flength">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>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">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.

Q90600-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MPPKPLRRAG AARSQRTSPE GGAGTASPPG GTRLEVGEAE FVALCDALKA
60 70 80 90 100
PDSVREKAWM TYQSLAAADG ASAYNKKKKE TWGVCIFIVA IDLDEMTFTF
110 120 130 140 150
TELLKSLSIS VCTFFQFLKE VDVNMDTVST KVDSTVSRLK KKYDVLLALY
160 170 180 190 200
HKFERTCGLI YLEQPSSEIS AELSSVLVLK NYWITFLLAK GKVLQMEDDL
210 220 230 240 250
VISFQLLLCV LDYFIKLSPP AMLKEPYKSA VTALTVNGST RTPRRGQNRN
260 270 280 290 300
ARASKQIDTD TKVIEILCKE HDCNLDEVKN VYFTSFIPFL NSLGVVASNG
310 320 330 340 350
LPEVDVLSKQ YDELYLKNKD IDARLFLDHD ETLQPDVIAC SQLERTPRKN
360 370 380 390 400
NPDEEVNHVL PQTPVRAAMN TIQQLMMILN SATDKPSDTL IAYFNNCTVN
410 420 430 440 450
PEDSILKRVE SLGHIFKKKF AEAVGQGCAE IGSQRYQLGV RLYYRVMESM
460 470 480 490 500
LKSEEERLSV HNFSKLLNDN IFHTSLLACA LEIVMATYGR TASQSDGTSA
510 520 530 540 550
ETDLSFPWIL NVFDLKAFDF YKVIESFIKV EPSLTRDMIK HLERCEHRIM
560 570 580 590 600
ESLAWQSDSP LFDLIKQSKE REGQTDQPEP TSTLNLPLQH NHTAADLYLS
610 620 630 640 650
PVRSPKKKAS GHPQSGTSNP DAQPSATSQT QKPQKSTSLS LFYKKVFRLA
660 670 680 690 700
YLRLHTLFFR LLSEHPDLEP LIWTLFQHTL QNESELMRDR HLDQIMMCSM
710 720 730 740 750
YGICKVKNVD LRFKTIVSAY KELPNTNQET FKRVLIREEQ YDSIIVFYNL
760 770 780 790 800
VFMQKLKTNI LQYASNRPPT LSPIPHIPRS PYQFSNSPRR VPAGNNIYIS
810 820 830 840 850
PLKSPYKFSD GFHSPTKMTP RSRILVSIGE TFGTSEKFQK INQMVCNSES
860 870 880 890 900
HVKRSAEPSD APKPLKRLRF DIEGQDEADG GKHLPQESKF QQKLAEMTST
910 920
RTRMQKQKLN DGNDTSANEE K
Length:921
Mass (Da):104,436
Last modified:November 1, 1996 - v1
<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:i8527B7B4ACB12F36
GO

<p>This subsection of the 'Sequence' section reports difference(s) between the protein sequence shown in the UniProtKB entry and other available protein sequences derived from the same gene.<p><a href='/help/sequence_caution' target='_top'>More...</a></p>Sequence cautioni

The sequence AAA19644 differs from that shown. Reason: Frameshift.Curated

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section reports difference(s) between the canonical sequence (displayed by default in the entry) and the different sequence submissions merged in the entry. These various submissions may originate from different sequencing projects, different types of experiments, or different biological samples. Sequence conflicts are usually of unknown origin.<p><a href='/help/conflict' target='_top'>More...</a></p>Sequence conflicti63Q → E in AAA19644 (PubMed:8193168).Curated1
Sequence conflicti163E → S in AAA19644 (PubMed:8193168).Curated1
Sequence conflicti411S → C in AAA19644 (PubMed:8193168).Curated1
Sequence conflicti619N → G in AAA19644 (PubMed:8193168).Curated1
Sequence conflicti791 – 792VP → A in AAA19644 (PubMed:8193168).Curated2

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
X72218 mRNA Translation: CAA51019.1
U00113 mRNA Translation: AAA19644.1 Frameshift.
X72217 Genomic DNA Translation: CAA51018.1

Protein sequence database of the Protein Information Resource

More...
PIRi
S45298

NCBI Reference Sequences

More...
RefSeqi
NP_989750.1, NM_204419.1

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
386582

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
gga:386582

<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
X72218 mRNA Translation: CAA51019.1
U00113 mRNA Translation: AAA19644.1 Frameshift.
X72217 Genomic DNA Translation: CAA51018.1
PIRiS45298
RefSeqiNP_989750.1, NM_204419.1

3D structure databases

SMRiQ90600
ModBaseiSearch...

Protein-protein interaction databases

STRINGi9031.ENSGALP00000027407

Proteomic databases

PaxDbiQ90600
PRIDEiQ90600

Genome annotation databases

GeneIDi386582
KEGGigga:386582

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
5925

Phylogenomic databases

eggNOGiKOG1010 Eukaryota
ENOG410XQF7 LUCA
InParanoidiQ90600
KOiK06618
OrthoDBi113612at2759
PhylomeDBiQ90600

Miscellaneous databases

Protein Ontology

More...
PROi
PR:Q90600

Family and domain databases

CDDicd00043 CYCLIN, 1 hit
InterProiView protein in InterPro
IPR013763 Cyclin-like
IPR036915 Cyclin-like_sf
IPR033057 RB1
IPR002720 RB_A
IPR002719 RB_B
IPR015030 RB_C
IPR028309 RB_fam
IPR024599 RB_N
PANTHERiPTHR13742 PTHR13742, 1 hit
PTHR13742:SF29 PTHR13742:SF29, 1 hit
PfamiView protein in Pfam
PF11934 DUF3452, 1 hit
PF01858 RB_A, 1 hit
PF01857 RB_B, 1 hit
PF08934 Rb_C, 1 hit
SMARTiView protein in SMART
SM00385 CYCLIN, 1 hit
SM01367 DUF3452, 1 hit
SM01368 RB_A, 1 hit
SM01369 Rb_C, 1 hit
SUPFAMiSSF47954 SSF47954, 2 hits

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 nameiRB_CHICK
<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: Q90600
Secondary accession number(s): Q788Q6, Q90599, Q91016
<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%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: April 29, 2008
Last sequence update: November 1, 1996
Last modified: February 26, 2020
This is version 111 of the entry and version 1 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 programChordata 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

Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
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