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Entry version 65 (02 Jun 2021)
Sequence version 1 (01 Jun 2003)
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Protein

ER lumen protein-retaining receptor 2

Gene

kdelr2

Organism
Xenopus laevis (African clawed frog)
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

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 (By similarity).

By similarity

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

<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
<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>OrganismiXenopus laevis (African clawed frog)
<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 identifieri8355 [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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiAmphibiaBatrachiaAnuraPipoideaPipidaeXenopodinaeXenopusXenopus

Organism-specific databases

Xenopus laevis and tropicalis biology and genomics resource

More...
Xenbasei
XB-GENE-941349, kdelr2.L

<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 – 4LumenalCurated4
<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 – 24HelicalBy similarityAdd BLAST20
Topological domaini25 – 32CytoplasmicCurated8
Transmembranei33 – 52HelicalBy similarityAdd BLAST20
Topological domaini53 – 58LumenalCurated6
Transmembranei59 – 79HelicalBy similarityAdd BLAST21
Topological domaini80 – 92CytoplasmicCuratedAdd BLAST13
Transmembranei93 – 110HelicalBy similarityAdd BLAST18
Topological domaini111 – 116LumenalCurated6
Transmembranei117 – 135HelicalBy similarityAdd BLAST19
Topological domaini136 – 149CytoplasmicCuratedAdd BLAST14
Transmembranei150 – 168HelicalBy similarityAdd BLAST19
Topological domaini169 – 178LumenalCurated10
Transmembranei179 – 199HelicalBy similarityAdd BLAST21
Topological domaini200 – 212CytoplasmicCuratedAdd BLAST13

Keywords - Cellular componenti

Cytoplasmic vesicle, Endoplasmic reticulum, Golgi apparatus, Membrane

<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_00002523501 – 212ER lumen protein-retaining receptor 2Add BLAST212

Proteomic databases

MaxQB - The MaxQuant DataBase

More...
MaxQBi
Q7ZXS5

<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 proteinsBy similarity1
Sitei54Interaction with the K-D-E-L motif on target proteinsBy similarity1
Sitei117Interaction with the K-D-E-L motif on target proteinsBy similarity1

<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
Q7ZXS5

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>Regioni47 – 48Interaction with the K-D-E-L motif on target proteinsBy similarity2
Regioni159 – 169Interaction with the K-D-E-L motif on target proteinsBy similarityAdd BLAST11
Regioni204 – 207Important for recycling of cargo proteins with the sequence motif K-D-E-L from the Golgi to the endoplasmic reticulumBy similarity4

<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 (By similarity). This patch mediates recycling from the Golgi to the endoplasmic reticulum, probably via COPI vesicles (By similarity).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 ERD2 family.Curated

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

Identification of Orthologs from Complete Genome Data

More...
OMAi
WVSLYNF

Database of Orthologous Groups

More...
OrthoDBi
1186269at2759

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
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.

Q7ZXS5-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MNVFRLSGDL CHLAAIIILL LKIWNSRSCA GISGKSQLLF AMVFTTRYLD
60 70 80 90 100
LFTSFISLYN TSMKVIYMGC AYATVYLIYM KFKATYDGNH DTFRVEFLVV
110 120 130 140 150
PVGGLSVLVN HDFSPLEILW TFSIYLESVA ILPQLFMISK TGEAETITTH
160 170 180 190 200
YLFFLGLYRA LYLFNWIWRF SFEGFFDLIA IVAGVVQTIL YCDFFYLYVT
210
KVLKGKKLSL PA
Length:212
Mass (Da):24,344
Last modified:June 1, 2003 - 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:i824F3C0A9DDFB7B1
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
BC044272 mRNA Translation: AAH44272.1

NCBI Reference Sequences

More...
RefSeqi
NP_001080638.1, NM_001087169.1

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
380330

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
xla:380330

<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
BC044272 mRNA Translation: AAH44272.1
RefSeqiNP_001080638.1, NM_001087169.1

3D structure databases

SMRiQ7ZXS5
ModBaseiSearch...

Proteomic databases

MaxQBiQ7ZXS5

Protocols and materials databases

The DNASU plasmid repository

More...
DNASUi
380330

Genome annotation databases

GeneIDi380330
KEGGixla:380330

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
380330
XenbaseiXB-GENE-941349, kdelr2.L

Phylogenomic databases

OMAiWVSLYNF
OrthoDBi1186269at2759

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
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_XENLA
<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: Q7ZXS5
<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: June 1, 2003
Last modified: June 2, 2021
This is version 65 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

Documents

  1. SIMILARITY comments
    Index of protein domains and families
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