ID:FCERB_HUMAN DESCRIPTION: RecName: Full=High affinity immunoglobulin epsilon receptor subunit beta; Short=FcERI; AltName: Full=Fc epsilon receptor I beta-chain; AltName: Full=IgE Fc receptor subunit beta; AltName: Full=Membrane-spanning 4-domains subfamily A member 2; FUNCTION: High affinity receptor that binds to the Fc region of immunoglobulins epsilon. Aggregation of FCER1 by multivalent antigens is required for the full mast cell response, including the release of preformed mediators (such as histamine) by degranulation and de novo production of lipid mediators and cytokines. Also mediates the secretion of important lymphokines. Binding of allergen to receptor-bound IgE leads to cell activation and the release of mediators responsible for the manifestations of allergy. SUBUNIT: Tetramer of an alpha chain, a beta chain, and two disulfide linked gamma chains. Binds LILRB1. Interacts with FGR, FES/FPS and LYN (By similarity). SUBCELLULAR LOCATION: Membrane; Multi-pass membrane protein. TISSUE SPECIFICITY: Found on the surface of mast cells and basophils. PTM: Phosphorylated on tyrosine residues by LYN (By similarity). POLYMORPHISM: Variant Glu-237 has been found to be present in about 5.3% of a 1004 individuals population sample in Australia. It seems to be a risk factor for atopic dermatitis and asthma. SIMILARITY: Belongs to the MS4A family.
The RNAfold program from the Vienna RNA Package is used to perform the secondary structure predictions and folding calculations. The estimated folding energy is in kcal/mol. The more negative the energy, the more secondary structure the RNA is likely to have.
ModBase Predicted Comparative 3D Structure on Q01362
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Orthologous Genes in Other Species
Orthologies between human, mouse, and rat are computed by taking the best BLASTP hit, and filtering out non-syntenic hits. For more distant species reciprocal-best BLASTP hits are used. Note that the absence of an ortholog in the table below may reflect incomplete annotations in the other species rather than a true absence of the orthologous gene.
Cellular Component: GO:0005886 plasma membrane GO:0005887 integral component of plasma membrane GO:0009897 external side of plasma membrane GO:0016020 membrane GO:0016021 integral component of membrane GO:0032998 Fc-epsilon receptor I complex
Descriptions from all associated GenBank mRNAs
AK304487 - Homo sapiens cDNA FLJ60221 complete cds, highly similar to High affinity immunoglobulin epsilon receptor subunit beta. AK310142 - Homo sapiens cDNA, FLJ17184. D10583 - Homo sapiens mRNA for IgE receptor beta subunit, complete cds. BC074800 - Homo sapiens membrane-spanning 4-domains, subfamily A, member 2 (Fc fragment of IgE, high affinity I, receptor for; beta polypeptide), mRNA (cDNA clone MGC:104074 IMAGE:30915525), complete cds. BC074843 - Homo sapiens membrane-spanning 4-domains, subfamily A, member 2 (Fc fragment of IgE, high affinity I, receptor for; beta polypeptide), mRNA (cDNA clone MGC:103840 IMAGE:30915222), complete cds. AB590499 - Synthetic construct DNA, clone: pFN21AE1738, Homo sapiens MS4A2 gene for membrane-spanning 4-domains, subfamily A, member 2, without stop codon, in Flexi system. KJ891151 - Synthetic construct Homo sapiens clone ccsbBroadEn_00545 MS4A2 gene, encodes complete protein. KR712129 - Synthetic construct Homo sapiens clone CCSBHm_00036022 MS4A2 (MS4A2) mRNA, encodes complete protein. JF411082 - Homo sapiens high affinity IgE receptor beta subunit splice variant (MS4A2) mRNA, complete cds, alternatively spliced. X66187 - H.sapiens FceRI mRNA, partial CDS. JD317391 - Sequence 298415 from Patent EP1572962. JD498928 - Sequence 479952 from Patent EP1572962. JD145276 - Sequence 126300 from Patent EP1572962. JD350606 - Sequence 331630 from Patent EP1572962. JD165073 - Sequence 146097 from Patent EP1572962. JD552846 - Sequence 533870 from Patent EP1572962. JD291374 - Sequence 272398 from Patent EP1572962. JD083711 - Sequence 64735 from Patent EP1572962. JD239688 - Sequence 220712 from Patent EP1572962. JD320642 - Sequence 301666 from Patent EP1572962. JD121274 - Sequence 102298 from Patent EP1572962. JD098709 - Sequence 79733 from Patent EP1572962. JD375053 - Sequence 356077 from Patent EP1572962. JD406951 - Sequence 387975 from Patent EP1572962. JD212722 - Sequence 193746 from Patent EP1572962. JD198111 - Sequence 179135 from Patent EP1572962. JD413412 - Sequence 394436 from Patent EP1572962. JD246960 - Sequence 227984 from Patent EP1572962. JD246959 - Sequence 227983 from Patent EP1572962. JD344145 - Sequence 325169 from Patent EP1572962. JD344146 - Sequence 325170 from Patent EP1572962. JD056616 - Sequence 37640 from Patent EP1572962. JD170863 - Sequence 151887 from Patent EP1572962. JD545169 - Sequence 526193 from Patent EP1572962. JD283303 - Sequence 264327 from Patent EP1572962. JD497098 - Sequence 478122 from Patent EP1572962. JD275276 - Sequence 256300 from Patent EP1572962. JD275277 - Sequence 256301 from Patent EP1572962. JD204598 - Sequence 185622 from Patent EP1572962. JD443394 - Sequence 424418 from Patent EP1572962. JD138263 - Sequence 119287 from Patent EP1572962. JD175840 - Sequence 156864 from Patent EP1572962. JD332241 - Sequence 313265 from Patent EP1572962. JD351583 - Sequence 332607 from Patent EP1572962. JD522767 - Sequence 503791 from Patent EP1572962. JD139824 - Sequence 120848 from Patent EP1572962. JD451669 - Sequence 432693 from Patent EP1572962. JD364934 - Sequence 345958 from Patent EP1572962. JD320099 - Sequence 301123 from Patent EP1572962. JD385186 - Sequence 366210 from Patent EP1572962. JD477290 - Sequence 458314 from Patent EP1572962. JD264016 - Sequence 245040 from Patent EP1572962. JD313626 - Sequence 294650 from Patent EP1572962. JD474296 - Sequence 455320 from Patent EP1572962. JD043262 - Sequence 24286 from Patent EP1572962. JD166428 - Sequence 147452 from Patent EP1572962. JD292130 - Sequence 273154 from Patent EP1572962. JD283630 - Sequence 264654 from Patent EP1572962. JD351139 - Sequence 332163 from Patent EP1572962. JD084339 - Sequence 65363 from Patent EP1572962. JD113611 - Sequence 94635 from Patent EP1572962. JD175458 - Sequence 156482 from Patent EP1572962. JD293571 - Sequence 274595 from Patent EP1572962. JD399867 - Sequence 380891 from Patent EP1572962. JD106681 - Sequence 87705 from Patent EP1572962. JD512883 - Sequence 493907 from Patent EP1572962. JD363472 - Sequence 344496 from Patent EP1572962. JD171766 - Sequence 152790 from Patent EP1572962.
Biochemical and Signaling Pathways
BioCarta from NCI Cancer Genome Anatomy Project h_fcer1Pathway - Fc Epsilon Receptor I Signaling in Mast Cells
Reactome (by CSHL, EBI, and GO)
Protein Q01362 (Reactome details) participates in the following event(s):