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Entry version 95 (08 May 2019)
Sequence version 1 (05 Jul 2004)
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Protein

Disks large homolog 4

Gene

dlg4

Organism
Danio rerio (Zebrafish) (Brachydanio rerio)
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 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

Plays a role in synapse assembly and function. Plays a role in synaptic plasticity.1 Publication

<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>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:
Disks large homolog 4
Alternative name(s):
Postsynaptic density protein 95
Short name:
PSD-95
<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:dlg4
<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>OrganismiDanio rerio (Zebrafish) (Brachydanio rerio)
<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 identifieri7955 [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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiActinopterygiiNeopterygiiTeleosteiOstariophysiCypriniformesCyprinidaeDanio
<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
  • UP000000437 <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

Zebrafish Information Network genome database

More...
ZFINi
ZDB-GENE-040628-3 dlg4b

<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

<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>Keywords - Cellular componenti

Cell junction, Cell membrane, Membrane, Postsynaptic cell membrane, Synapse

<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_00000945631 – 801Disks large homolog 4Add BLAST801

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">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

Ubiquitinated by MDM2 in response to NMDA receptor activation, leading to proteasome-mediated degradation of DLG4 which is required for AMPA receptor endocytosis.By similarity

Keywords - PTMi

Ubl conjugation

Proteomic databases

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

More...
PaxDbi
Q6R005

PRoteomics IDEntifications database

More...
PRIDEi
Q6R005

<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

<p>This subsection of the ‘Expression’ section provides information on the expression of the gene product at various stages of a cell, tissue or organism development. By default, the information is derived from experiments at the mRNA level, unless specified ‘at the protein level’.<p><a href='/help/developmental_stage' target='_top'>More...</a></p>Developmental stagei

At 3 days-post-fertilization (dpf), expressed strongly in neurons in the ventral hindbrain and tegmentum and diffusely in the dorsal hindbrain and optic tectum. Also expressed in the diencephalon and the prospective olfactory bulb. Expression in non-spiny type-XIV tectal neurons is mostly diffuse. Over the next 7 days, as the dendritic arbor develops, expression becomes progressively more punctate, becoming localized to sites of synapse formation. At 4 dpf, expressed in the inner and outer plexiform layers of the retina and in the optic chiasm.2 Publications

<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

GO - Molecular functioni

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
7955.ENSDARP00000042429

<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
Q6R005

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

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family_and_domains_section">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini4 – 60L27PROSITE-ProRule annotationAdd BLAST57
Domaini153 – 240PDZ 1PROSITE-ProRule annotationAdd BLAST88
Domaini248 – 335PDZ 2PROSITE-ProRule annotationAdd BLAST88
Domaini393 – 474PDZ 3PROSITE-ProRule annotationAdd BLAST82
Domaini507 – 577SH3PROSITE-ProRule annotationAdd BLAST71
Domaini610 – 786Guanylate kinase-likePROSITE-ProRule annotationAdd BLAST177

<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

L27 domain is required for targeting to postsynaptic density.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

Belongs to the MAGUK family.Curated

Keywords - Domaini

Repeat, SH3 domain

Phylogenomic databases

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q6R005

KEGG Orthology (KO)

More...
KOi
K11828

Database of Orthologous Groups

More...
OrthoDBi
807583at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
Q6R005

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR016313 DLG1-like
IPR019590 DLG1_PEST_dom
IPR008145 GK/Ca_channel_bsu
IPR008144 Guanylate_kin-like_dom
IPR020590 Guanylate_kinase_CS
IPR015143 L27_1
IPR004172 L27_dom
IPR036892 L27_dom_sf
IPR027417 P-loop_NTPase
IPR001478 PDZ
IPR019583 PDZ_assoc
IPR036034 PDZ_sf
IPR036028 SH3-like_dom_sf
IPR001452 SH3_domain

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00625 Guanylate_kin, 1 hit
PF09058 L27_1, 1 hit
PF10608 MAGUK_N_PEST, 1 hit
PF00595 PDZ, 3 hits
PF10600 PDZ_assoc, 1 hit
PF00018 SH3_1, 1 hit

PIRSF; a whole-protein classification database

More...
PIRSFi
PIRSF001741 MAGUK_DLGH, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00072 GuKc, 1 hit
SM01277 MAGUK_N_PEST, 1 hit
SM00228 PDZ, 3 hits
SM00326 SH3, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF101288 SSF101288, 1 hit
SSF50044 SSF50044, 1 hit
SSF50156 SSF50156, 3 hits
SSF52540 SSF52540, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00856 GUANYLATE_KINASE_1, 1 hit
PS50052 GUANYLATE_KINASE_2, 1 hit
PS51022 L27, 1 hit
PS50106 PDZ, 3 hits
PS50002 SH3, 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 2 potential isoforms that are computationally mapped.Show allAlign All

Q6R005-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MPLKREDTER ALQAMEACQS AGDEGFRTRA ERLLTIFQSD LFQALLDIQE
60 70 80 90 100
FYELTVFENQ TAGRALTPGL KYRYHDEETP PLQHSPAHLS TGKSAEMLHL
110 120 130 140 150
GDSGHAPIDG IHAYTPQMHV SPAKPVLLPS GHAPYYATST LMNGMDGDVE
160 170 180 190 200
YEEITLERGN SGLGFSIAGG TDNPHIGDDP SIFITKIIPG GAAAQDGRLR
210 220 230 240 250
VNDSILFVND VDVREVTHSF AVEALKEAGP IVRLYVLRHK PSAEKITELK
260 270 280 290 300
LIKGPKGLGF SIAGGVGNQH VPGDNSIYVT KIIEGGAAHK DGRLQIGDKI
310 320 330 340 350
LAVNNMYLEE VMHEDAVAAL KNTGDVVFLR VAKTLHQHHH QDAYNPPDIT
360 370 380 390 400
SSYSPHMDMS DYPQALSPSS PRRYSPIPKG LFLDDDISRE PRRVVIHRGS
410 420 430 440 450
TGLGFNIVGG EDGEGIFISF ILAGGAADLS GELRKGDQIL SVNGVDLRHA
460 470 480 490 500
THEQAAAALK NAGQTVTIIT QYRPEEYSRF EAKIHDLREQ LMNSSLVSAA
510 520 530 540 550
ASLRSGKRSF FIRALFDYDK TADGGFLSQA VSFRFGDVLQ VFDCSDEEWW
560 570 580 590 600
QAGKLAPHGE LEETGYIPSK RRVERKEWSR LKTRGREPVS GRSDYIVSYE
610 620 630 640 650
TVTQSEVHYA RPVIILGPSK DRVNDDLLSE FPDKFGSCVP HTTRPKREYE
660 670 680 690 700
MDGRDYHFVS SREQMEKDIQ SHRFIEAGQY NSHLYGTSVQ SVRQVAEQQG
710 720 730 740 750
KHCILDVSAN AVRRLQAAQL YPIAIFIRPS SLQNVLNISK RLTEEQARRA
760 770 780 790 800
LDRAVKLEQD FIECFSAIVE GESFEEIYHH VKSVIEEQSG PYIWIPARER

L
Length:801
Mass (Da):89,140
Last modified:July 5, 2004 - 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:iF8BF0E103904C668
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 are 2 potential isoforms mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
F1Q6A0F1Q6A0_DANRE
Discs, large homolog 4b (Drosophila...
dlg4b dlg4
453Annotation score:

Annotation score:1 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>
F8W3G8F8W3G8_DANRE
Discs, large homolog 4b (Drosophila...
dlg4b dlg4
70Annotation score:

Annotation score:1 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
AY520570 mRNA Translation: AAS00608.1

NCBI Reference Sequences

More...
RefSeqi
NP_999893.1, NM_214728.1

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
405796

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
dre:405796

<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
AY520570 mRNA Translation: AAS00608.1
RefSeqiNP_999893.1, NM_214728.1

3D structure databases

SMRiQ6R005
ModBaseiSearch...

Protein-protein interaction databases

STRINGi7955.ENSDARP00000042429

Proteomic databases

PaxDbiQ6R005
PRIDEiQ6R005

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi405796
KEGGidre:405796

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
405796
ZFINiZDB-GENE-040628-3 dlg4b

Phylogenomic databases

InParanoidiQ6R005
KOiK11828
OrthoDBi807583at2759
PhylomeDBiQ6R005

Miscellaneous databases

Protein Ontology

More...
PROi
PR:Q6R005

Family and domain databases

InterProiView protein in InterPro
IPR016313 DLG1-like
IPR019590 DLG1_PEST_dom
IPR008145 GK/Ca_channel_bsu
IPR008144 Guanylate_kin-like_dom
IPR020590 Guanylate_kinase_CS
IPR015143 L27_1
IPR004172 L27_dom
IPR036892 L27_dom_sf
IPR027417 P-loop_NTPase
IPR001478 PDZ
IPR019583 PDZ_assoc
IPR036034 PDZ_sf
IPR036028 SH3-like_dom_sf
IPR001452 SH3_domain
PfamiView protein in Pfam
PF00625 Guanylate_kin, 1 hit
PF09058 L27_1, 1 hit
PF10608 MAGUK_N_PEST, 1 hit
PF00595 PDZ, 3 hits
PF10600 PDZ_assoc, 1 hit
PF00018 SH3_1, 1 hit
PIRSFiPIRSF001741 MAGUK_DLGH, 1 hit
SMARTiView protein in SMART
SM00072 GuKc, 1 hit
SM01277 MAGUK_N_PEST, 1 hit
SM00228 PDZ, 3 hits
SM00326 SH3, 1 hit
SUPFAMiSSF101288 SSF101288, 1 hit
SSF50044 SSF50044, 1 hit
SSF50156 SSF50156, 3 hits
SSF52540 SSF52540, 1 hit
PROSITEiView protein in PROSITE
PS00856 GUANYLATE_KINASE_1, 1 hit
PS50052 GUANYLATE_KINASE_2, 1 hit
PS51022 L27, 1 hit
PS50106 PDZ, 3 hits
PS50002 SH3, 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 nameiDLG4_DANRE
<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: Q6R005
<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: June 21, 2005
Last sequence update: July 5, 2004
Last modified: May 8, 2019
This is version 95 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

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
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