Format

Send to:

Choose Destination

FCGR3B Fc fragment of IgG receptor IIIb [ Homo sapiens (human) ]

Gene ID: 2215, updated on 11-Jul-2021

Summary

Official Symbol
FCGR3Bprovided by HGNC
Official Full Name
Fc fragment of IgG receptor IIIbprovided by HGNC
Primary source
HGNC:HGNC:3620
See related
Ensembl:ENSG00000162747 MIM:610665
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
CD16; FCG3; CD16A; CD16b; FCGR3; FCGR3A; FCR-10; FCRIII; FCRIIIb
Summary
The protein encoded by this gene is a low affinity receptor for the Fc region of gamma immunoglobulins (IgG). The encoded protein acts as a monomer and can bind either monomeric or aggregated IgG. This gene may function to capture immune complexes in the peripheral circulation. Several transcript variants encoding different isoforms have been found for this gene. A highly-similar gene encoding a related protein is also found on chromosome 1. [provided by RefSeq, Aug 2012]
Expression
Biased expression in spleen (RPKM 53.3), appendix (RPKM 50.9) and 7 other tissues See more
Orthologs
NEW
Try the new Gene table
Try the new Transcript table

Genomic context

See FCGR3B in Genome Data Viewer
Location:
1q23.3
Exon count:
7
Annotation release Status Assembly Chr Location
109.20210514 current GRCh38.p13 (GCF_000001405.39) 1 NC_000001.11 (161623196..161631963, complement)
105.20201022 previous assembly GRCh37.p13 (GCF_000001405.25) 1 NC_000001.10 (161592986..161601753, complement)

Chromosome 1 - NC_000001.11Genomic Context describing neighboring genes Neighboring gene tRNA-Leu (anticodon CAA) 6-1 Neighboring gene ribosomal protein S23 pseudogene 9 Neighboring gene Fc fragment of IgG receptor IIb Neighboring gene ribosomal protein L31 pseudogene 11

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?

Phenotypes

Associated conditions

Description Tests
Host-microbe interactions have shaped the genetic architecture of inflammatory bowel disease.
GeneReviews: Not available

HIV-1 interactions

Protein interactions

Protein Gene Interaction Pubs
Envelope surface glycoprotein gp120 env IgG2 and IgG4 bind more poorly to enzymatically deglycosylated recombinant gp120 (rgp120) than to unchanged rgp120 PubMed
Tat tat HIV-1 Tat upregulates the expression of CCR2, CD16, and TLR4 in monocyte-derived macrophages PubMed
tat HIV-1 Tat inhibits the rise in intracellular free calcium concentration in Natural Killer (NK) cells upon cross-linking of the adhesion molecule CD11a and the activation molecule CD16, indicating Tat is involved in the impairment of NK cell function PubMed

Go to the HIV-1, Human Interaction Database

Interactions

Products Interactant Other Gene Complex Source Pubs Description

General gene information

Markers

Homology

Gene Ontology Provided by GOA

Function Evidence Code Pubs
enables IgG binding IEA
Inferred from Electronic Annotation
more info
 
enables transmembrane signaling receptor activity IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
Process Evidence Code Pubs
involved_in cell surface receptor signaling pathway IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
involved_in immune response TAS
Traceable Author Statement
more info
PubMed 
involved_in regulation of immune response IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
Component Evidence Code Pubs
located_in anchored component of membrane IEA
Inferred from Electronic Annotation
more info
 
located_in extracellular exosome HDA PubMed 
located_in extracellular region TAS
Traceable Author Statement
more info
 
is_active_in integral component of plasma membrane IBA
Inferred from Biological aspect of Ancestor
more info
PubMed 
located_in plasma membrane TAS
Traceable Author Statement
more info
 
located_in secretory granule membrane TAS
Traceable Author Statement
more info
 

General protein information

Preferred Names
low affinity immunoglobulin gamma Fc region receptor III-B
Names
Fc fragment of IgG, low affinity IIIb, receptor (CD16b)
Fc gamma receptor III-B
Fc gamma receptor IIIb
Fc-gamma receptor IIIb (CD 16)
fc-gamma RIII-beta
fc-gamma RIIIb
igG Fc receptor III-1

NCBI Reference Sequences (RefSeq)

NEW Try the new Transcript table

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_032926.2 RefSeqGene

    Range
    5788..13768
    Download
    GenBank, FASTA, Sequence Viewer (Graphics), LRG_1238

mRNA and Protein(s)

  1. NM_000570.5NP_000561.3  low affinity immunoglobulin gamma Fc region receptor III-B isoform 2 precursor

    See identical proteins and their annotated locations for NP_000561.3

    Status: REVIEWED

    Description
    Transcript Variant: This variant (2) differs in the 5' UTR compared to variant 1. Variants 1 and 2 encode the same isoform (2).
    Source sequence(s)
    AL451067
    Consensus CDS
    CCDS41433.1
    UniProtKB/Swiss-Prot
    O75015
    Related
    ENSP00000356941.2, ENST00000367964.6
    Conserved Domains (2) summary
    cd05752
    Location:26104
    Ig1_FcgammaR_like; Frst immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins
    cd05753
    Location:108190
    Ig2_FcgammaR_like; Second immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins
  2. NM_001244753.2NP_001231682.2  low affinity immunoglobulin gamma Fc region receptor III-B isoform 2 precursor

    Status: REVIEWED

    Description
    Transcript Variant: This variant (1) encodes the longest isoform (2). Variants 1 and 2 encode the same isoform.
    Source sequence(s)
    AJ581669, AL451067, M24854, X16863
    Consensus CDS
    CCDS58040.1
    Related
    ENSP00000497461.1, ENST00000650385.1
    Conserved Domains (2) summary
    cd05752
    Location:26104
    Ig1_FcgammaR_like; Frst immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins
    cd05753
    Location:108190
    Ig2_FcgammaR_like; Second immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins
  3. NM_001271035.2NP_001257964.2  low affinity immunoglobulin gamma Fc region receptor III-B isoform 6 precursor

    Status: REVIEWED

    Description
    Transcript Variant: This variant (3) uses an alternate in-frame splice site at the 5' end of an exon compared to variant 1. The resulting isoform (6) has the same N- and C-termini but is one aa shorter compared to isoform 2.
    Source sequence(s)
    AJ581669, AK316565, AL451067, DA673839
    Related
    ENSP00000394204.3, ENST00000421702.3
    Conserved Domains (2) summary
    cd05752
    Location:25103
    Ig1_FcgammaR_like; Frst immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins
    cd05753
    Location:107189
    Ig2_FcgammaR_like; Second immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins
  4. NM_001271036.2NP_001257965.1  low affinity immunoglobulin gamma Fc region receptor III-B isoform 4

    Status: REVIEWED

    Description
    Transcript Variant: This variant (4) differs in the 5' UTR and coding sequence compared to variant 1. The resulting isoform (4) is shorter at the N-terminus compared to isoform 1.
    Source sequence(s)
    AL451067
    Consensus CDS
    CCDS72961.1
    UniProtKB/Swiss-Prot
    O75015
    UniProtKB/TrEMBL
    A0A087WZR4
    Related
    ENSP00000482838.1, ENST00000613418.4
    Conserved Domains (3) summary
    cd05752
    Location:987
    Ig1_FcgammaR_like; Frst immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins
    cd05753
    Location:91173
    Ig2_FcgammaR_like; Second immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins
    smart00410
    Location:1587
    IG_like; Immunoglobulin like
  5. NM_001271037.2NP_001257966.1  low affinity immunoglobulin gamma Fc region receptor III-B isoform 5

    Status: REVIEWED

    Description
    Transcript Variant: This variant (5) differs in the 5' UTR and coding sequence and lacks an alternate in-frame exon compared to variant 1. The resulting isoform (5) is shorter at the N-terminus and lacks an alternate internal segment compared to isoform 1.
    Source sequence(s)
    AL451067
    Consensus CDS
    CCDS72960.1
    UniProtKB/Swiss-Prot
    O75015
    UniProtKB/TrEMBL
    A0A087WU90
    Related
    ENSP00000478466.1, ENST00000614870.4
    Conserved Domains (2) summary
    cd05752
    Location:987
    Ig1_FcgammaR_like; Frst immunoglobulin (Ig)-like domain of Fcgamma-receptors (FcgammaRs) and similar proteins
    smart00410
    Location:1587
    IG_like; Immunoglobulin like

RefSeqs of Annotated Genomes: Homo sapiens Updated Annotation Release 109.20210514

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

Reference GRCh38.p13 Primary Assembly

Genomic

  1. NC_000001.11 Reference GRCh38.p13 Primary Assembly

    Range
    161623196..161631963 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)
Support Center