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Entry version 75 (02 Jun 2021)
Sequence version 1 (23 Nov 2004)
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Protein

ER lumen protein-retaining receptor 2

Gene

KDELR2

Organism
Gallus gallus (Chicken)
Status
Reviewed-Annotation score:

Annotation score:5 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

Receptor for the C-terminal sequence motif K-D-E-L that is present on endoplasmic reticulum resident proteins and that mediates their recycling from the Golgi back to the endoplasmic reticulum (By similarity).

Binding is pH dependent, and is optimal at pH 5-5.4 (PubMed:30846601).

By similarity1 Publication

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection describes interesting single amino acid sites on the sequence that are not defined in any other subsection. This subsection can be displayed in different sections ('Function', 'PTM / Processing', 'Pathology and Biotech') according to its content.<p><a href='/help/site' target='_top'>More...</a></p>Sitei193Important for recycling of cargo proteins with the sequence motif K-D-E-L from the Golgi to the endoplasmic reticulumBy similarity1

<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 functionReceptor
Biological processER-Golgi transport, Protein transport, Transport

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-GGA-6807878, COPI-mediated anterograde transport
R-GGA-6811434, COPI-dependent Golgi-to-ER retrograde traffic

Protein family/group databases

Transport Classification Database

More...
TCDBi
9.B.191.1.8, the endoplasmic reticulum retention receptor (kdelr) family

<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:
ER lumen protein-retaining receptor 2
Alternative name(s):
KDEL endoplasmic reticulum protein retention receptor 2
Short name:
KDEL receptor 2
<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:KDELR2
ORF Names:RCJMB04_8l23
<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: Chromosome 14

<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

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular%5Flocation%5Fsection">'Subcellular location'</a> section describes the subcellular compartment where each non-membrane region of a membrane-spanning protein is found.<p><a href='/help/topo_dom' target='_top'>More...</a></p>Topological domaini1 – 4Lumenal1 Publication4
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular%5Flocation%5Fsection">'Subcellular location'</a> section describes the extent of a membrane-spanning region of the protein. It denotes the presence of both alpha-helical transmembrane regions and the membrane spanning regions of beta-barrel transmembrane proteins.<p><a href='/help/transmem' target='_top'>More...</a></p>Transmembranei5 – 24Helical1 PublicationAdd BLAST20
Topological domaini25 – 32Cytoplasmic1 Publication8
Transmembranei33 – 52Helical1 PublicationAdd BLAST20
Topological domaini53 – 58Lumenal1 Publication6
Transmembranei59 – 79Helical1 PublicationAdd BLAST21
Topological domaini80 – 92Cytoplasmic1 PublicationAdd BLAST13
Transmembranei93 – 110Helical1 PublicationAdd BLAST18
Topological domaini111 – 116Lumenal1 Publication6
Transmembranei117 – 135Helical1 PublicationAdd BLAST19
Topological domaini136 – 149Cytoplasmic1 PublicationAdd BLAST14
Transmembranei150 – 168Helical1 PublicationAdd BLAST19
Topological domaini169 – 178Lumenal1 Publication10
Transmembranei179 – 199Helical1 PublicationAdd BLAST21
Topological domaini200 – 212Cytoplasmic1 PublicationAdd BLAST13

Keywords - Cellular componenti

Cytoplasmic vesicle, Endoplasmic reticulum, Golgi apparatus, Membrane

<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

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/manual/pathology%5Fand%5Fbiotech%5Fsection">'Pathology and Biotech'</a> section describes the effect of the experimental mutation of one or more amino acid(s) on the biological properties of the protein.<p><a href='/help/mutagen' target='_top'>More...</a></p>Mutagenesisi12H → A: Loss of binding to the sequence motif K-D-E-L. 1 Publication1
Mutagenesisi47R → K: Loss of binding to the sequence motif K-D-E-L. 1 Publication1
Mutagenesisi127E → A or Q: Loss of binding to the sequence motif K-D-E-L. 1 Publication1
Mutagenesisi158Y → F: Loss of binding to the sequence motif K-D-E-L. 1 Publication1

<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_00002523481 – 212ER lumen protein-retaining receptor 2Add BLAST212

Proteomic databases

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

More...
PaxDbi
Q5ZKX9

<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

ExpressionAtlas, Differential and Baseline Expression

More...
ExpressionAtlasi
Q5ZKX9, baseline and differential

<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

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sitei5Interaction with the K-D-E-L motif on target proteins1 Publication1
Sitei54Interaction with the K-D-E-L motif on target proteins1 Publication1
Sitei117Interaction with the K-D-E-L motif on target proteins1 Publication1

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
9031.ENSGALP00000011467

<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

Secondary structure

1212
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

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

More...
SMRi
Q5ZKX9

Database of comparative protein structure models

More...
ModBasei
Search...

Protein Data Bank in Europe - Knowledge Base

More...
PDBe-KBi
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>Regioni47 – 48Interaction with the K-D-E-L motif on target proteins1 Publication2
Regioni159 – 169Interaction with the K-D-E-L motif on target proteins1 PublicationAdd BLAST11
Regioni204 – 207Important for recycling of cargo proteins with the sequence motif K-D-E-L from the Golgi to the endoplasmic reticulum1 Publication4

<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

Binds the C-terminal sequence motif K-D-E-L in a hydrophilic cavity between the transmembrane domains. This triggers a conformation change that exposes a Lys-rich patch on the cytosolic surface of the protein (PubMed:30846601). This patch mediates recycling from the Golgi to the endoplasmic reticulum, probably via COPI vesicles (By similarity).By similarity1 Publication

<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 ERD2 family.Curated

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG3106, Eukaryota

Ensembl GeneTree

More...
GeneTreei
ENSGT00390000004010

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q5ZKX9

Database of Orthologous Groups

More...
OrthoDBi
1186269at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
Q5ZKX9

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR000133, ER_ret_rcpt

The PANTHER Classification System

More...
PANTHERi
PTHR10585, PTHR10585, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00810, ER_lumen_recept, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00660, ERLUMENR

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00951, ER_LUMEN_RECEPTOR_1, 1 hit
PS00952, ER_LUMEN_RECEPTOR_2, 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%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.

Q5ZKX9-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MNIFRLTGDL SHLAAIIILL LKIWKSRSCA GISGKSQLLF ALVFTTRYLD
60 70 80 90 100
LFTSFISLYN TSMKLIYIAC SYATVYLIYM KFKATYDGNH DTFRVEFLIV
110 120 130 140 150
PVGGLSFLVN HDFSPLEILW TFSIYLESVA ILPQLFMISK TGEAETITTH
160 170 180 190 200
YLFFLGLYRA LYLVNWIWRY YFEGFFDLIA VVAGVVQTVL YCDFFYLYVT
210
KVLKGKKLSL PA
Length:212
Mass (Da):24,456
Last modified:November 23, 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:i51D3862AAE07C140
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
AJ719955 mRNA Translation: CAG31614.1

NCBI Reference Sequences

More...
RefSeqi
NP_001153187.1, NM_001159715.1

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...
Ensembli
ENSGALT00000073117; ENSGALP00000045653; ENSGALG00000040793
ENSGALT00000096755; ENSGALP00000072133; ENSGALG00000040793

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
771927

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
gga:771927

<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
AJ719955 mRNA Translation: CAG31614.1
RefSeqiNP_001153187.1, NM_001159715.1

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...
PDBei

Protein Data Bank RCSB

More...
RCSB PDBi

Protein Data Bank Japan

More...
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
6I6BX-ray2.59A1-203[»]
6I6HX-ray2.00A1-207[»]
6I6JX-ray2.23A1-204[»]
6Y7VX-ray2.24A1-212[»]
6ZXRX-ray2.31A1-212[»]
SMRiQ5ZKX9
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

STRINGi9031.ENSGALP00000011467

Protein family/group databases

TCDBi9.B.191.1.8, the endoplasmic reticulum retention receptor (kdelr) family

Proteomic databases

PaxDbiQ5ZKX9

Protocols and materials databases

ABCD curated depository of sequenced antibodies

More...
ABCDi
Q5ZKX9, 1 sequenced antibody

Genome annotation databases

EnsembliENSGALT00000073117; ENSGALP00000045653; ENSGALG00000040793
ENSGALT00000096755; ENSGALP00000072133; ENSGALG00000040793
GeneIDi771927
KEGGigga:771927

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
11014

Phylogenomic databases

eggNOGiKOG3106, Eukaryota
GeneTreeiENSGT00390000004010
InParanoidiQ5ZKX9
OrthoDBi1186269at2759
PhylomeDBiQ5ZKX9

Enzyme and pathway databases

ReactomeiR-GGA-6807878, COPI-mediated anterograde transport
R-GGA-6811434, COPI-dependent Golgi-to-ER retrograde traffic

Miscellaneous databases

Protein Ontology

More...
PROi
PR:Q5ZKX9

Gene expression databases

ExpressionAtlasiQ5ZKX9, baseline and differential

Family and domain databases

InterProiView protein in InterPro
IPR000133, ER_ret_rcpt
PANTHERiPTHR10585, PTHR10585, 1 hit
PfamiView protein in Pfam
PF00810, ER_lumen_recept, 1 hit
PRINTSiPR00660, ERLUMENR
PROSITEiView protein in PROSITE
PS00951, ER_LUMEN_RECEPTOR_1, 1 hit
PS00952, ER_LUMEN_RECEPTOR_2, 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 nameiERD22_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: Q5ZKX9
<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: October 17, 2006
Last sequence update: November 23, 2004
Last modified: June 2, 2021
This is version 75 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

3D-structure, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families
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