Incidental Mutation 'R4273:Fcer2a'
ID 322277
Institutional Source Beutler Lab
Gene Symbol Fcer2a
Ensembl Gene ENSMUSG00000005540
Gene Name Fc receptor, IgE, low affinity II, alpha polypeptide
Synonyms Ly-42, FC epsilon RII, CD23, Fce2, low-affinity IgE receptor
MMRRC Submission 041645-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R4273 (G1)
Quality Score 225
Status Not validated
Chromosome 8
Chromosomal Location 3681737-3694175 bp(-) (GRCm38)
Type of Mutation missense
DNA Base Change (assembly) C to A at 3682848 bp (GRCm38)
Zygosity Heterozygous
Amino Acid Change Valine to Leucine at position 319 (V319L)
Ref Sequence ENSEMBL: ENSMUSP00000146647 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000005678] [ENSMUST00000044857] [ENSMUST00000207463] [ENSMUST00000207635] [ENSMUST00000207787] [ENSMUST00000208145] [ENSMUST00000208438] [ENSMUST00000208492] [ENSMUST00000208603]
AlphaFold P20693
Predicted Effect probably benign
Transcript: ENSMUST00000005678
AA Change: V320L

PolyPhen 2 Score 0.002 (Sensitivity: 0.99; Specificity: 0.30)
SMART Domains Protein: ENSMUSP00000005678
Gene: ENSMUSG00000005540
AA Change: V320L

DomainStartEndE-ValueType
transmembrane domain 26 48 N/A INTRINSIC
coiled coil region 80 150 N/A INTRINSIC
CLECT 186 306 2.11e-41 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000044857
SMART Domains Protein: ENSMUSP00000036541
Gene: ENSMUSG00000040236

DomainStartEndE-ValueType
Pfam:TRAPP 28 177 3.2e-39 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000207463
AA Change: V280L

PolyPhen 2 Score 0.099 (Sensitivity: 0.93; Specificity: 0.85)
Predicted Effect probably benign
Transcript: ENSMUST00000207635
AA Change: V293L

PolyPhen 2 Score 0.183 (Sensitivity: 0.92; Specificity: 0.87)
Predicted Effect probably benign
Transcript: ENSMUST00000207787
Predicted Effect possibly damaging
Transcript: ENSMUST00000208145
AA Change: V319L

PolyPhen 2 Score 0.805 (Sensitivity: 0.84; Specificity: 0.93)
Predicted Effect probably benign
Transcript: ENSMUST00000208438
AA Change: V298L

PolyPhen 2 Score 0.099 (Sensitivity: 0.93; Specificity: 0.85)
Predicted Effect probably benign
Transcript: ENSMUST00000208492
AA Change: V319L

PolyPhen 2 Score 0.003 (Sensitivity: 0.98; Specificity: 0.44)
Predicted Effect probably benign
Transcript: ENSMUST00000208603
AA Change: V298L

PolyPhen 2 Score 0.001 (Sensitivity: 0.99; Specificity: 0.15)
Coding Region Coverage
  • 1x: 99.4%
  • 3x: 98.8%
  • 10x: 97.7%
  • 20x: 96.1%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] 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]
PHENOTYPE: Mice homozygous for mutations in this gene are essentially normal although IgE levels or IgE mediated responses may be abnormal. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 65 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Acer2 T A 4: 86,874,598 probably null Het
Adgrf2 T A 17: 42,710,122 T604S probably damaging Het
Akap8l T A 17: 32,321,931 K533* probably null Het
Appbp2 T C 11: 85,234,676 Y45C probably damaging Het
Arap2 T C 5: 62,670,979 I950V possibly damaging Het
Arhgap31 T C 16: 38,602,335 E1123G possibly damaging Het
Atp2c1 G T 9: 105,435,140 N493K probably benign Het
Bcr T C 10: 75,125,111 I458T probably damaging Het
Brd4 G A 17: 32,214,782 T468I probably benign Het
Cdh23 T A 10: 60,311,161 D2774V possibly damaging Het
Cfdp1 T C 8: 111,768,785 Y267C probably damaging Het
Chd6 C A 2: 160,961,291 A2156S probably benign Het
Dazap2 C A 15: 100,618,090 P100T probably damaging Het
Disp1 T A 1: 183,087,644 I1071F possibly damaging Het
Dlgap1 T A 17: 70,766,043 S686T probably benign Het
Dst C T 1: 34,192,340 R3183C possibly damaging Het
Enpp4 T C 17: 44,101,807 N279D probably benign Het
Exoc3l T C 8: 105,289,961 *740W probably null Het
Exoc5 A T 14: 49,015,480 C625* probably null Het
Fam98b A T 2: 117,260,231 N137Y possibly damaging Het
Fat4 T A 3: 38,891,627 D1556E probably damaging Het
Fer1l6 T C 15: 58,627,522 V1247A probably benign Het
Fmo4 A G 1: 162,805,179 V201A probably damaging Het
Fras1 G A 5: 96,614,904 G755D probably benign Het
Gm13078 A T 4: 143,726,846 K175* probably null Het
Grid2 T C 6: 63,909,045 Y142H probably damaging Het
Hspg2 C T 4: 137,518,940 R1010C probably damaging Het
Ibtk T C 9: 85,726,731 Q376R probably damaging Het
Impdh2 T C 9: 108,564,956 M414T probably damaging Het
Itm2c A G 1: 85,907,029 T160A probably damaging Het
Kcna2 T A 3: 107,105,193 D363E probably benign Het
Lama2 C T 10: 27,347,054 C412Y probably damaging Het
Lims2 C G 18: 31,956,337 T151S probably benign Het
Mier1 T C 4: 103,162,431 S423P possibly damaging Het
Mrgpra3 A T 7: 47,589,432 W249R probably benign Het
Mtor A G 4: 148,550,152 H2410R probably benign Het
Mvp C T 7: 126,989,703 A631T probably benign Het
Nepro T C 16: 44,735,829 V450A possibly damaging Het
Ngrn T C 7: 80,264,521 V140A probably damaging Het
Nobox T C 6: 43,306,008 E231G probably benign Het
Olfr129 A T 17: 38,055,272 I98N probably damaging Het
P3h2 T A 16: 26,105,221 I155F probably benign Het
Pcdha3 C T 18: 36,948,091 R629C probably damaging Het
Riok3 AGAAGCGG AG 18: 12,135,941 probably benign Het
Rttn T C 18: 89,091,896 I1675T probably benign Het
Sall2 C A 14: 52,313,803 R643L probably damaging Het
Slc35f4 G T 14: 49,304,301 T182N possibly damaging Het
Slc52a3 T A 2: 152,005,740 I256N possibly damaging Het
Sox9 T C 11: 112,785,154 S390P possibly damaging Het
Tango2 T C 16: 18,302,790 probably benign Het
Tas1r1 T C 4: 152,032,157 E340G possibly damaging Het
Tek G A 4: 94,829,970 G524R probably damaging Het
Tmem260 A T 14: 48,505,304 Y532F probably benign Het
Tsks C A 7: 44,957,929 L559I probably damaging Het
Unc79 C A 12: 103,122,353 L1702I probably damaging Het
Vmn1r14 T A 6: 57,234,148 I237N probably damaging Het
Vmn2r17 G A 5: 109,452,966 C710Y probably benign Het
Zfp119b G T 17: 55,938,926 T420K possibly damaging Het
Zfp202 C T 9: 40,207,494 R68* probably null Het
Zfp229 T A 17: 21,746,821 S677R probably benign Het
Zfp462 C T 4: 55,008,411 H126Y probably benign Het
Zfp52 C A 17: 21,560,197 Y102* probably null Het
Zfp616 T A 11: 74,083,700 M265K probably benign Het
Zfyve9 A T 4: 108,680,976 I1031N probably damaging Het
Zmynd11 T C 13: 9,697,690 Y203C probably damaging Het
Other mutations in Fcer2a
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01102:Fcer2a APN 8 3688842 missense possibly damaging 0.94
IGL01458:Fcer2a APN 8 3688151 missense probably benign 0.45
IGL01545:Fcer2a APN 8 3683598 nonsense probably null
IGL01994:Fcer2a APN 8 3688302 missense possibly damaging 0.94
IGL03340:Fcer2a APN 8 3688310 missense possibly damaging 0.75
anemone UTSW 8 3688796 critical splice donor site probably null
R0058:Fcer2a UTSW 8 3688111 splice site probably benign
R0058:Fcer2a UTSW 8 3688111 splice site probably benign
R0241:Fcer2a UTSW 8 3688796 critical splice donor site probably null
R0241:Fcer2a UTSW 8 3688796 critical splice donor site probably null
R0276:Fcer2a UTSW 8 3689811 missense possibly damaging 0.89
R1530:Fcer2a UTSW 8 3682976 missense probably damaging 0.98
R2202:Fcer2a UTSW 8 3688557 missense possibly damaging 0.72
R4133:Fcer2a UTSW 8 3691130 missense possibly damaging 0.60
R4249:Fcer2a UTSW 8 3688831 missense probably benign 0.00
R4506:Fcer2a UTSW 8 3688603 splice site probably null
R6796:Fcer2a UTSW 8 3689830 missense possibly damaging 0.92
R6861:Fcer2a UTSW 8 3682910 missense probably damaging 0.98
R7421:Fcer2a UTSW 8 3690335 missense probably benign
R7795:Fcer2a UTSW 8 3682910 missense probably benign
Predicted Primers PCR Primer
(F):5'- GCTTCAGTATGGGTGGGAAC -3'
(R):5'- AGATCCCCAAAGGTGCAATCG -3'

Sequencing Primer
(F):5'- CTTCAGTATGGGTGGGAACATAATC -3'
(R):5'- AATCACATCCTTTGACTGGGG -3'
Posted On 2015-06-20