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Entry version 79 (02 Jun 2021)
Sequence version 2 (02 Oct 2007)
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Protein

Mediator of RNA polymerase II transcription subunit 23

Gene

Med23

Organism
Rattus norvegicus (Rat)
Status
Reviewed-Annotation score:

Annotation score:3 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 transcript 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

Component of the Mediator complex, a coactivator involved in the regulated transcription of nearly all RNA polymerase II-dependent genes. Mediator functions as a bridge to convey information from gene-specific regulatory proteins to the basal RNA polymerase II transcription machinery. Mediator is recruited to promoters by direct interactions with regulatory proteins and serves as a scaffold for the assembly of a functional pre-initiation complex with RNA polymerase II and the general transcription factors. Also required for transcriptional activation subsequent to the assembly of the pre-initiation complex. Required for transcriptional activation by adenovirus E1A protein. Required for ELK1-dependent transcriptional activation in response to activated Ras signaling (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 - 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 functionActivator
Biological processTranscription, 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_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:
Mediator of RNA polymerase II transcription subunit 23
Alternative name(s):
Cofactor required for Sp1 transcriptional activation subunit 3
Short name:
CRSP complex subunit 3
Mediator complex subunit 23
<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:Med23
Synonyms:Crsp3
<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>OrganismiRattus norvegicus (Rat)
<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 identifieri10116 [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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaMyomorphaMuroideaMuridaeMurinaeRattus
<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
  • UP000002494 <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: Unplaced

Organism-specific databases

Rat genome database

More...
RGDi
1307671, Med23

<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

Keywords - Cellular componenti

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 or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00003059321 – 1367Mediator of RNA polymerase II transcription subunit 23Add BLAST1367

Proteomic databases

jPOST - Japan Proteome Standard Repository/Database

More...
jPOSTi
Q5EB59

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

More...
PaxDbi
Q5EB59

PRoteomics IDEntifications database

More...
PRIDEi
Q5EB59

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...
iPTMneti
Q5EB59

Comprehensive resource for the study of protein post-translational modifications (PTMs) in human, mouse and rat.

More...
PhosphoSitePlusi
Q5EB59

<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

Gene expression databases

Genevisible search portal to normalized and curated expression data from Genevestigator

More...
Genevisiblei
Q5EB59, RN

<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

Component of the Mediator complex, which is composed of MED1, MED4, MED6, MED7, MED8, MED9, MED10, MED11, MED12, MED13, MED13L, MED14, MED15, MED16, MED17, MED18, MED19, MED20, MED21, MED22, MED23, MED24, MED25, MED26, MED27, MED29, MED30, MED31, CCNC, CDK8 and CDC2L6/CDK11. The MED12, MED13, CCNC and CDK8 subunits form a distinct module termed the CDK8 module. Mediator containing the CDK8 module is less active than Mediator lacking this module in supporting transcriptional activation. Individual preparations of the Mediator complex lacking one or more distinct subunits have been variously termed ARC, CRSP, DRIP, PC2, SMCC and TRAP.

Interacts with CDK8, CEBPB, CTNNB1, ELK1 and GLI3.

Interacts with the adenovirus E1A protein (By similarity).

By similarity

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
10116.ENSRNOP00000036610

<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
Q5EB59

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

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni1343 – 1367DisorderedSequence analysisAdd BLAST25

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 type of amino acids that are over-represented within those regions.<p><a href='/help/compbias' target='_top'>More...</a></p>Compositional biasi1348 – 1367Polar residuesSequence analysisAdd BLAST20

<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 Mediator complex subunit 23 family.Curated

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG1883, Eukaryota

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_002773_0_0_1

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q5EB59

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR021629, Mediator_Med23

The PANTHER Classification System

More...
PANTHERi
PTHR12691, PTHR12691, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF11573, Med23, 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>Sequence (1+)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 has 1 described isoform and 1 potential isoform that is computationally mapped.Show allAlign All

Q5EB59-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
METQLQSIFE EVVKTEIIEE AFPGMFMDTP EDEKTKLISC LAAFRQFWNG
60 70 80 90 100
LSQESHEQCV QWIVKFIHGQ HSPKRISFLY DCLAMAVETG LLPPRMVCES
110 120 130 140 150
LINSDTLEWE RTQLWALTFK LVRKIIGGVD YKGVRDLLKV ILEKILTIPN
160 170 180 190 200
TVSSAVVQQL LAAREVIAYI LERNACLLPA YFAVTEIRKL YPEGKLPHWL
210 220 230 240 250
LGNLVSDFVD TFRPTARINS ICGRCSLLPV VNNSGAICNS WKLDPATLRF
260 270 280 290 300
PLKGLLPYDK DLFEPQTALL RYVLEQPYSR DMVCNMLGLN KQHKQRCPVL
310 320 330 340 350
EDQLVDLVVY AMERSETEEK FDDGGTSQLL WQHLSSQLIF FVLFQFASFP
360 370 380 390 400
HMVLSLHQKL AGRGLIKGRD HLMWVLLQFI SGSIQKNALA DFLPVMKLFD
410 420 430 440 450
LLYPEKECIP VPDINKPQST HAFAMTCIWI HLNRKAQNDN SKLQIPIPHS
460 470 480 490 500
LKLHHEFLQQ SLRNKSLQMN DYKIALLCNA YSTNSECFTL PMGALVETIY
510 520 530 540 550
GNGIMRVPLP GTSCLASASV TPLPMNLLDS LTVHAKMSLI HSIATRVIKL
560 570 580 590 600
AHTKSSVALA PALVETYSRL LVYMEIESLG IKGFISQLLP TVFKSHAWGI
610 620 630 640 650
LHTLLEMFSH RMHHIQPHYR VQLLSHLHTL AAVAQTNQNQ LHLCVESTAL
660 670 680 690 700
RLITALGSSE VQPQFTRFLN DPKTVLSAES EELNRALILT LARATHVTDF
710 720 730 740 750
FTGSDSIQGT WCKDILQTIM TFTPHNWASH TLSCFPAPLQ AFFKQNNVPQ
760 770 780 790 800
ESRFNLKKNV EEEYRKWKSM TDENEIITQF SMQGFPPLFL CLLWKMLLET
810 820 830 840 850
DHISQIGYKV LERIGARALV AHVRTFADFL VYEFSTSAGG QQLNKCIEIL
860 870 880 890 900
NDMVWKYNIV TLDRLILCLA MRSHEGNEAQ VCYFIIQLLL LKPNDFRNRV
910 920 930 940 950
SDFVKENSPE HWLQSDWHTK HMSYHKKYPE KLYFEGLAEQ VDPPVPIQSP
960 970 980 990 1000
YLPIYFGNVC LRFLPVFDIV IHRFLELLPV SKSLETLLDH LGGLYKFHDR
1010 1020 1030 1040 1050
PVTYLYNTLH YYEMCLRNRD HLKRKLVHAI IGSLKDNRPQ GWCLSDTYLK
1060 1070 1080 1090 1100
HAMNAREDNP WVPEDSYYCK LIGRLVDTMA GKSPGPFPNC DWRFNEFPNP
1110 1120 1130 1140 1150
AAHALHVTCV ELMALAVPGK DVGNALLNVV LKSQPLVPRE NITAWMNAIG
1160 1170 1180 1190 1200
LIITALPEPY WIVLHDRIVS VISSSSLTSE TEWVGYPFRL FDFTACHQSY
1210 1220 1230 1240 1250
SEMSCSYTLA LAHAVWHHSS IGQLSLIPKF LTEVLLPVVK TEFQLLYVYH
1260 1270 1280 1290 1300
LVGPFLQRFQ QERTRCMIEI GVAFYDMLLN VDQCSTHLNY MDPICDFLYH
1310 1320 1330 1340 1350
MKYMFTGDSV KEQVEKIICN LKPALKLRLR FITHISKMEP AVPPQALSSG
1360
SPAPQANQVP TALPVTQ
Length:1,367
Mass (Da):156,232
Last modified:October 2, 2007 - 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:i5C067F7FD80F3132
GO

<p>In eukaryotic reference proteomes, unreviewed entries that are likely to belong to the same gene are computationally mapped, based on gene identifiers from Ensembl, EnsemblGenomes and model organism databases.<p><a href='/help/gene_centric_isoform_mapping' target='_top'>More...</a></p>Computationally mapped potential isoform sequencesi

There is 1 potential isoform mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
A0A0H2UHV2A0A0H2UHV2_RAT
Mediator complex subunit 23
Med23
1,370Annotation score:

Annotation score:2 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>

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
AABR03000314 Genomic DNA No translation available.
BC090022 mRNA Translation: AAH90022.1

<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
AABR03000314 Genomic DNA No translation available.
BC090022 mRNA Translation: AAH90022.1

3D structure databases

SMRiQ5EB59
ModBaseiSearch...

Protein-protein interaction databases

STRINGi10116.ENSRNOP00000036610

PTM databases

iPTMnetiQ5EB59
PhosphoSitePlusiQ5EB59

Proteomic databases

jPOSTiQ5EB59
PaxDbiQ5EB59
PRIDEiQ5EB59

Organism-specific databases

RGDi1307671, Med23

Phylogenomic databases

eggNOGiKOG1883, Eukaryota
HOGENOMiCLU_002773_0_0_1
InParanoidiQ5EB59

Miscellaneous databases

Protein Ontology

More...
PROi
PR:Q5EB59

Gene expression databases

GenevisibleiQ5EB59, RN

Family and domain databases

InterProiView protein in InterPro
IPR021629, Mediator_Med23
PANTHERiPTHR12691, PTHR12691, 1 hit
PfamiView protein in Pfam
PF11573, Med23, 1 hit

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 nameiMED23_RAT
<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: Q5EB59
<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: October 2, 2007
Last sequence update: October 2, 2007
Last modified: June 2, 2021
This is version 79 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 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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