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Entry version 92 (13 Nov 2019)
Sequence version 1 (09 Jan 2007)
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Protein

Apelin receptor B

Gene

aplnrb

Organism
Danio rerio (Zebrafish) (Brachydanio rerio)
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 apelin receptor early endogenous ligand (apela) and apelin (apln) hormones coupled to G proteins that inhibit adenylate cyclase activity (PubMed:17336905, PubMed:17336906, PubMed:24316148, PubMed:24407481). Plays a key role in early development such as gastrulation, blood vessels formation and heart morphogenesis by acting as a receptor for apela hormone, promoting endoderm and mesendoderm cell migration and regulating the migration of cells fated to become myocardial progenitors, respectively (PubMed:17336905, PubMed:17336906, PubMed:24316148, PubMed:24407481, PubMed:26017639). Positively regulates angioblast migration toward the embryonic midline, i.e. the position of the future vessel formation, during vasculogenesis (PubMed:26017639). May promote sinus venosus (SV)-derived endothelial cells migration into the developing heart to promote coronary blood vessel development (By similarity). Required for cardiovascular development, particularly for intersomitic vein angiogenesis by acting as a receptor for apln hormone (By similarity). Plays a role in various processes in adults such as regulation of blood vessel formation, blood pressure, heart contractility and heart failure (By similarity). Acts redundantly with agtrl1a in heart development (PubMed:17336906).By similarity5 Publications

<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 functionDevelopmental protein, G-protein coupled receptor, Receptor, Transducer
Biological processAngiogenesis, Gastrulation

<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:
Apelin receptor B
Alternative name(s):
Angiotensin II receptor-like 1b
Angiotensin receptor-like 1b
G-protein coupled receptor APJ B
Protein grinch
<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:aplnrb
Synonyms:agtrl1b, grn1 Publication
ORF Names:zgc:114063
<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: Chromosome 10

Organism-specific databases

Zebrafish Information Network genome database

More...
ZFINi
ZDB-GENE-050913-90 aplnrb

<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

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'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 – 36ExtracellularSequence analysisAdd BLAST36
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'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>Transmembranei37 – 57Helical; Name=1Sequence analysisAdd BLAST21
Topological domaini58 – 75CytoplasmicSequence analysisAdd BLAST18
Transmembranei76 – 96Helical; Name=2Sequence analysisAdd BLAST21
Topological domaini97 – 108ExtracellularSequence analysisAdd BLAST12
Transmembranei109 – 129Helical; Name=3Sequence analysisAdd BLAST21
Topological domaini130 – 151CytoplasmicSequence analysisAdd BLAST22
Transmembranei152 – 172Helical; Name=4Sequence analysisAdd BLAST21
Topological domaini173 – 213ExtracellularSequence analysisAdd BLAST41
Transmembranei214 – 234Helical; Name=5Sequence analysisAdd BLAST21
Topological domaini235 – 251CytoplasmicSequence analysisAdd BLAST17
Transmembranei252 – 272Helical; Name=6Sequence analysisAdd BLAST21
Topological domaini273 – 286ExtracellularSequence analysisAdd BLAST14
Transmembranei287 – 307Helical; Name=7Sequence analysisAdd BLAST21
Topological domaini308 – 359CytoplasmicSequence analysisAdd BLAST52

Keywords - Cellular componenti

Cell membrane, 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

<p>This subsection of the ‘Pathology and Biotech’ section describes the in vivo effects caused by ablation of the gene (or one or more transcripts) coding for the protein described in the entry. This includes gene knockout and knockdown, provided experiments have been performed in the context of a whole organism or a specific tissue, and not at the single-cell level.<p><a href='/help/disruption_phenotype' target='_top'>More...</a></p>Disruption phenotypei

Morpholino knockdown of the protein induces embryonic lethality due to cardiac dysplasia with little to no blood circulation around 6 days post-fertilization (dpf) (PubMed:24316148). Mutant embryos show pericardial edema and accumulation of erythrocytes in the intermediate cell mass (ICM) at 30 hours post-fertilization (hpf) (PubMed:24316148). Display decreased angioblast migration to the embryonic midline during late gastrulation (PubMed:24316148, PubMed:24407481, PubMed:26017639).3 Publications

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/manual/pathology_and_biotech_section">'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>Mutagenesisi90W → L in grns608; defective in early myocardial specification. 2 Publications1

<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_00003125941 – 359Apelin receptor BAdd BLAST359

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section specifies the position and type of each covalently attached glycan group (mono-, di-, or polysaccharide).<p><a href='/help/carbohyd' target='_top'>More...</a></p>Glycosylationi6N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi21N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi182N-linked (GlcNAc...) asparagineSequence analysis1

Keywords - PTMi

Glycoprotein

Proteomic databases

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

More...
PaxDbi
A0T2N3

PRoteomics IDEntifications database

More...
PRIDEi
A0T2N3

<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 a gene at the mRNA or protein level in cells or in tissues of multicellular organisms. By default, the information is derived from experiments at the mRNA level, unless specified ‘at protein level’. <br></br>Examples: <a href="http://www.uniprot.org/uniprot/P92958#expression">P92958</a>, <a href="http://www.uniprot.org/uniprot/Q8TDN4#expression">Q8TDN4</a>, <a href="http://www.uniprot.org/uniprot/O14734#expression">O14734</a><p><a href='/help/tissue_specificity' target='_top'>More...</a></p>Tissue specificityi

Mesendodermal expression at the blastoderm margin appears by 4.5 hpf. At early gastrulation, expression is maintained ventrolaterally while expression in dorsal cells and random deep cells declines. During gastrulation and segmentation, expression is maintained in adaxial, intermediate, and lateral plate mesoderm. During late segmentation, expressed in several regions including the forming heart. By 24 hpf, expressed in the dorsal aorta, caudal vein, and intersomitic blood vessels.1 Publication

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...
Bgeei
ENSDARG00000036670 Expressed in 32 organ(s), highest expression level in spleen

<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

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
7955.ENSDARP00000108783

<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

<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 G-protein coupled receptor 1 family.PROSITE-ProRule annotation

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG3656 Eukaryota
ENOG410XRW9 LUCA

Ensembl GeneTree

More...
GeneTreei
ENSGT00970000193411

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000234122

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
A0T2N3

KEGG Orthology (KO)

More...
KOi
K04174

Identification of Orthologs from Complete Genome Data

More...
OMAi
FCLTCMS

Database of Orthologous Groups

More...
OrthoDBi
788659at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
A0T2N3

TreeFam database of animal gene trees

More...
TreeFami
TF330024

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR000248 ATII_rcpt
IPR000276 GPCR_Rhodpsn
IPR017452 GPCR_Rhodpsn_7TM

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00001 7tm_1, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00241 ANGIOTENSINR
PR00237 GPCRRHODOPSN

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00237 G_PROTEIN_RECEP_F1_1, 1 hit
PS50262 G_PROTEIN_RECEP_F1_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_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>Sequencei

<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.

A0T2N3-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MNAMDNMTAD YSPDYFDDAV NSSMCEYDEW EPSYSLIPVL YMLIFILGLT
60 70 80 90 100
GNGVVIFTVW RAQSKRRAAD VYIGNLALAD LTFVVTLPLW AVYTALGYHW
110 120 130 140 150
PFGVALCKIS SYVVLLNMYA SVFCLTCLSL DRYMAIVHSL TSTQLRTRGH
160 170 180 190 200
MRASLTAIWL LSGVLAAPTL LFRTTVYDVE TNRTSCAMDF NLVVSQPGQE
210 220 230 240 250
TYWIAGLSIS STALGFLIPL LAMMVCYGFI GCTVTRHFNS LRKEDQRKRR
260 270 280 290 300
LLKIITTLVV VFAACWMPFH VVKTMDALSY LNLAPDSCTF LNLLLLAHPY
310 320 330 340 350
ATCLAYVNSC LNPLLYAFFD LRFRSQCLCL LNLKKALHAS PASSLSSQKT

EAQSLATKV
Length:359
Mass (Da):40,147
Last modified:January 9, 2007 - 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:i8D88B8A3EB169FCD
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 AAH97125 differs from that shown. Reason: Erroneous initiation.Curated

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
EF079888 mRNA Translation: ABK63803.1
BC097125 mRNA Translation: AAH97125.1 Different initiation.

NCBI Reference Sequences

More...
RefSeqi
NP_001025368.2, NM_001030197.2

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...
Ensembli
ENSDART00000129643; ENSDARP00000108783; ENSDARG00000036670

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
565492

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
dre:565492

<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
EF079888 mRNA Translation: ABK63803.1
BC097125 mRNA Translation: AAH97125.1 Different initiation.
RefSeqiNP_001025368.2, NM_001030197.2

3D structure databases

Database of comparative protein structure models

More...
ModBasei
Search...

SWISS-MODEL Interactive Workspace

More...
SWISS-MODEL-Workspacei
Submit a new modelling project...

Protein-protein interaction databases

STRINGi7955.ENSDARP00000108783

Protein family/group databases

Information system for G protein-coupled receptors (GPCRs)

More...
GPCRDBi
Search...

Proteomic databases

PaxDbiA0T2N3
PRIDEiA0T2N3

Genome annotation databases

EnsembliENSDART00000129643; ENSDARP00000108783; ENSDARG00000036670
GeneIDi565492
KEGGidre:565492

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
565492
ZFINiZDB-GENE-050913-90 aplnrb

Phylogenomic databases

eggNOGiKOG3656 Eukaryota
ENOG410XRW9 LUCA
GeneTreeiENSGT00970000193411
HOGENOMiHOG000234122
InParanoidiA0T2N3
KOiK04174
OMAiFCLTCMS
OrthoDBi788659at2759
PhylomeDBiA0T2N3
TreeFamiTF330024

Miscellaneous databases

Protein Ontology

More...
PROi
PR:A0T2N3

Gene expression databases

BgeeiENSDARG00000036670 Expressed in 32 organ(s), highest expression level in spleen

Family and domain databases

InterProiView protein in InterPro
IPR000248 ATII_rcpt
IPR000276 GPCR_Rhodpsn
IPR017452 GPCR_Rhodpsn_7TM
PfamiView protein in Pfam
PF00001 7tm_1, 1 hit
PRINTSiPR00241 ANGIOTENSINR
PR00237 GPCRRHODOPSN
PROSITEiView protein in PROSITE
PS00237 G_PROTEIN_RECEP_F1_1, 1 hit
PS50262 G_PROTEIN_RECEP_F1_2, 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 nameiAPJB_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: A0T2N3
Secondary accession number(s): Q4V905
<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: December 4, 2007
Last sequence update: January 9, 2007
Last modified: November 13, 2019
This is version 92 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. 7-transmembrane G-linked receptors
    List of 7-transmembrane G-linked receptor entries
  2. SIMILARITY comments
    Index of protein domains and families
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