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FCER2 Fc fragment of IgE receptor II [ Homo sapiens (human) ]

Gene ID: 2208, updated on 13-Mar-2020

Summary

Official Symbol
FCER2provided by HGNC
Official Full Name
Fc fragment of IgE receptor IIprovided by HGNC
Primary source
HGNC:HGNC:3612
See related
Ensembl:ENSG00000104921 MIM:151445
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
CD23; FCE2; CD23A; IGEBF; CLEC4J; BLAST-2
Summary
The protein encoded by this gene is a B-cell specific antigen, and a low-affinity receptor for IgE. It has essential roles in B cell growth and differentiation, and the regulation of IgE production. This protein also exists as a soluble secreted form, then functioning as a potent mitogenic growth factor. Alternatively spliced transcript variants encoding different isoforms have been described for this gene.[provided by RefSeq, Jul 2011]
Expression
Biased expression in spleen (RPKM 20.9), lymph node (RPKM 16.3) and 4 other tissues See more
Orthologs

Genomic context

See FCER2 in Genome Data Viewer
Location:
19p13.2
Exon count:
12
Annotation release Status Assembly Chr Location
109.20200228 current GRCh38.p13 (GCF_000001405.39) 19 NC_000019.10 (7688757..7702755, complement)
105 previous assembly GRCh37.p13 (GCF_000001405.25) 19 NC_000019.9 (7753643..7767036, complement)

Chromosome 19 - NC_000019.10Genomic Context describing neighboring genes Neighboring gene mast cell expressed membrane protein 1 Neighboring gene trafficking protein particle complex 5 Neighboring gene uncharacterized LOC105372262 Neighboring gene C-type lectin domain family 4 member G

Genomic regions, transcripts, and products

Expression

  • Project title: HPA RNA-seq normal tissues
  • Description: RNA-seq was performed of tissue samples from 95 human individuals representing 27 different tissues in order to determine tissue-specificity of all protein-coding genes
  • BioProject: PRJEB4337
  • Publication: PMID 24309898
  • Analysis date: Wed Apr 4 07:08:55 2018

Bibliography

GeneRIFs: Gene References Into Functions

What's a GeneRIF?

HIV-1 interactions

Protein interactions

Protein Gene Interaction Pubs
Envelope surface glycoprotein gp120 env HIV-1 gp120 downregulates the expression of Fc fragment of IgE, low affinity receptor II (FCER2; CD23) in human B cells PubMed
env CD23 protein membrane expression is upregulated by HIV-1 gp120 and this upregulation induces the production of nitric oxide (NO) and IL-1beta PubMed
Envelope surface glycoprotein gp160, precursor env Antibodies against cell surface molecules LFA-1, ICAM-1, HLA-DR, and CD28 inhibit the HIV-1 gp160-induced B cell differentiation response; gp160 also induces IL-6R and CD23 molecule expression on B cells PubMed
Nef nef In macrophages, activation of CD40 or expression of HIV-1 Nef induces the release of sCD23 and sICAM, which mediate effects on T lymphocytes, rendering them permissive to HIV-1 infection PubMed

Go to the HIV-1, Human Interaction Database

Pathways from PubChem

Interactions

Products Interactant Other Gene Complex Source Pubs Description

General gene information

Markers

Homology

Gene Ontology Provided by GOA

Function Evidence Code Pubs
IgE binding IEA
Inferred from Electronic Annotation
more info
 
carbohydrate binding IEA
Inferred from Electronic Annotation
more info
 
integrin binding TAS
Traceable Author Statement
more info
PubMed 
metal ion binding IEA
Inferred from Electronic Annotation
more info
 
protein binding IPI
Inferred from Physical Interaction
more info
PubMed 
Component Evidence Code Pubs
external side of plasma membrane IEA
Inferred from Electronic Annotation
more info
 
extracellular exosome HDA PubMed 
integral component of plasma membrane TAS
Traceable Author Statement
more info
PubMed 
plasma membrane TAS
Traceable Author Statement
more info
 

General protein information

Preferred Names
low affinity immunoglobulin epsilon Fc receptor
Names
C-type lectin domain family 4, member J
CD23 antigen
Fc epsilon receptor II
Fc fragment of IgE, low affinity II, receptor for (CD23)
fc-epsilon-RII
immunoglobulin E-binding factor
immunoglobulin epsilon-chain
lymphocyte IgE receptor

NCBI Reference Sequences (RefSeq)

RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

Genomic

  1. NG_029554.1 RefSeqGene

    Range
    5001..18390
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. NM_001207019.2NP_001193948.2  low affinity immunoglobulin epsilon Fc receptor isoform b

    Status: REVIEWED

    Description
    Transcript Variant: This variant (2) contains an alternate 5' terminal exon and it thus differs in the 5' UTR and 5' coding region, compared to variant 1. The encoded isoform (b, also known as CD23b) is shorter and has a distinct N-terminus, compared to isoform a. This variant is supported by data in PubMed IDs 12379312 and 15843555.
    Source sequence(s)
    AC008763, BC014108, DB333832
    UniProtKB/Swiss-Prot
    P06734
    UniProtKB/TrEMBL
    K3W4U1
    Related
    ENSP00000353178.4, ENST00000360067.8
    Conserved Domains (2) summary
    smart00034
    Location:162281
    CLECT; C-type lectin (CTL) or carbohydrate-recognition domain (CRD)
    cl23720
    Location:76152
    RILP-like; Rab interacting lysosomal protein-like 1 and 2 (Rilpl1 and Rilpl2)
  2. NM_001220500.2NP_001207429.1  low affinity immunoglobulin epsilon Fc receptor isoform a

    See identical proteins and their annotated locations for NP_001207429.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (3) uses an alternate donor splice site in the 5' UTR, compared to variant 1. Both variants 1 and 3 encode the same isoform (a, also known as CD23a).
    Source sequence(s)
    BC062591, DA957269
    Consensus CDS
    CCDS12184.1
    UniProtKB/Swiss-Prot
    P06734
    Related
    ENSP00000471974.1, ENST00000597921.6
    Conserved Domains (2) summary
    smart00034
    Location:163282
    CLECT; C-type lectin (CTL) or carbohydrate-recognition domain (CRD)
    cl23720
    Location:77153
    RILP-like; Rab interacting lysosomal protein-like 1 and 2 (Rilpl1 and Rilpl2)
  3. NM_002002.4NP_001993.2  low affinity immunoglobulin epsilon Fc receptor isoform a

    See identical proteins and their annotated locations for NP_001993.2

    Status: REVIEWED

    Description
    Transcript Variant: This variant (1) encodes the longer isoform (a, also known as CD23a). Both variants 1 and 3 encode the same isoform.
    Source sequence(s)
    BC014108, DA957269, DB333832
    Consensus CDS
    CCDS12184.1
    UniProtKB/Swiss-Prot
    P06734
    Related
    ENSP00000264072.6, ENST00000346664.9
    Conserved Domains (2) summary
    smart00034
    Location:163282
    CLECT; C-type lectin (CTL) or carbohydrate-recognition domain (CRD)
    cl23720
    Location:77153
    RILP-like; Rab interacting lysosomal protein-like 1 and 2 (Rilpl1 and Rilpl2)

RefSeqs of Annotated Genomes: Homo sapiens Updated Annotation Release 109.

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCh38.p13 Primary Assembly

Genomic

  1. NC_000019.10 Reference GRCh38.p13 Primary Assembly

    Range
    7688757..7702755 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_005272462.4XP_005272519.1  low affinity immunoglobulin epsilon Fc receptor isoform X1

    See identical proteins and their annotated locations for XP_005272519.1

    UniProtKB/Swiss-Prot
    P06734
    Conserved Domains (2) summary
    smart00034
    Location:163282
    CLECT; C-type lectin (CTL) or carbohydrate-recognition domain (CRD)
    cl23720
    Location:77153
    RILP-like; Rab interacting lysosomal protein-like 1 and 2 (Rilpl1 and Rilpl2)
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