Incidental Mutation 'R1813:Cd8a'
ID 202542
Institutional Source Beutler Lab
Gene Symbol Cd8a
Ensembl Gene ENSMUSG00000053977
Gene Name CD8 antigen, alpha chain
Synonyms Ly-35, Lyt-2, Ly-B, Ly-2
MMRRC Submission 039841-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.059) question?
Stock # R1813 (G1)
Quality Score 225
Status Validated
Chromosome 6
Chromosomal Location 71373427-71379173 bp(+) (GRCm38)
Type of Mutation missense
DNA Base Change (assembly) G to T at 71373963 bp (GRCm38)
Zygosity Heterozygous
Amino Acid Change Methionine to Isoleucine at position 137 (M137I)
Ref Sequence ENSEMBL: ENSMUSP00000131873 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000066747] [ENSMUST00000172321]
AlphaFold P01731
Predicted Effect probably benign
Transcript: ENSMUST00000066747
AA Change: M137I

PolyPhen 2 Score 0.149 (Sensitivity: 0.92; Specificity: 0.87)
SMART Domains Protein: ENSMUSP00000068123
Gene: ENSMUSG00000053977
AA Change: M137I

low complexity region 9 26 N/A INTRINSIC
IG 38 148 1.46e-5 SMART
transmembrane domain 195 217 N/A INTRINSIC
Predicted Effect possibly damaging
Transcript: ENSMUST00000172321
AA Change: M137I

PolyPhen 2 Score 0.473 (Sensitivity: 0.89; Specificity: 0.90)
SMART Domains Protein: ENSMUSP00000131873
Gene: ENSMUSG00000053977
AA Change: M137I

low complexity region 9 26 N/A INTRINSIC
IG 38 148 1.46e-5 SMART
transmembrane domain 195 217 N/A INTRINSIC
Predicted Effect noncoding transcript
Transcript: ENSMUST00000205022
Predicted Effect noncoding transcript
Transcript: ENSMUST00000205054
Meta Mutation Damage Score 0.2024 question?
Coding Region Coverage
  • 1x: 97.5%
  • 3x: 96.8%
  • 10x: 94.8%
  • 20x: 90.3%
Validation Efficiency 96% (79/82)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The CD8 antigen is a cell surface glycoprotein found on most cytotoxic T lymphocytes that mediates efficient cell-cell interactions within the immune system. The CD8 antigen acts as a coreceptor with the T-cell receptor on the T lymphocyte to recognize antigens displayed by an antigen presenting cell in the context of class I MHC molecules. The coreceptor functions as either a homodimer composed of two alpha chains or as a heterodimer composed of one alpha and one beta chain. Both alpha and beta chains share significant homology to immunoglobulin variable light chains. This gene encodes the CD8 alpha chain. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2011]
PHENOTYPE: Animals homozygous for a mutation in this gene lack CD8+CD4- cytotoxic T cells in the thymus and spleen and do not mount a cytotoxic response to alloantigens. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 74 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
A2ml1 T A 6: 128,566,273 N595Y probably benign Het
Abca6 A G 11: 110,233,845 probably benign Het
Abo C A 2: 26,843,597 D199Y probably damaging Het
Acvr1c A C 2: 58,280,294 V277G probably damaging Het
Adam23 G A 1: 63,545,572 A380T probably benign Het
Art2b A G 7: 101,580,029 V221A probably benign Het
Bcam A G 7: 19,766,715 S153P probably damaging Het
Brip1 T C 11: 86,187,080 H174R possibly damaging Het
Ccdc186 T C 19: 56,800,169 D536G probably benign Het
Cd109 A G 9: 78,617,005 N67S probably benign Het
Ces2g T C 8: 104,966,937 F417L probably benign Het
Clec2g A G 6: 128,948,697 N23S unknown Het
Cntnap2 T C 6: 46,530,633 Y61C probably damaging Het
Cog3 T A 14: 75,742,344 E182D probably benign Het
Dbpht2 A G 12: 74,295,850 noncoding transcript Het
Dock4 A T 12: 40,636,228 N154I probably damaging Het
Dysf T G 6: 84,151,924 V1422G possibly damaging Het
E2f3 T C 13: 29,920,176 D140G probably damaging Het
Epb41l2 T A 10: 25,441,568 probably null Het
Epha2 A G 4: 141,308,546 K98E possibly damaging Het
Esyt1 T C 10: 128,519,618 D444G probably benign Het
Fam163a T C 1: 156,080,041 T2A probably damaging Het
Foxp2 A T 6: 15,379,768 probably benign Het
Gcm2 T C 13: 41,105,891 H34R probably benign Het
Gipr A G 7: 19,164,071 S79P probably benign Het
Gli3 T C 13: 15,648,691 S333P probably damaging Het
Gm10717 T G 9: 3,026,317 F205C probably damaging Het
Gm11639 A G 11: 104,720,688 K452R probably benign Het
Gzmk A G 13: 113,172,893 S208P probably damaging Het
Htra2 G T 6: 83,051,602 A318D probably damaging Het
Itpkc T C 7: 27,208,380 D633G probably damaging Het
Lama1 G A 17: 67,791,223 R1805H probably benign Het
Lama4 T A 10: 39,033,125 probably benign Het
Lama4 T C 10: 39,060,186 V619A probably damaging Het
Notch3 T C 17: 32,143,428 T1408A probably benign Het
Nwd2 A G 5: 63,805,410 D779G probably benign Het
Nxpe4 A G 9: 48,393,378 Y255C possibly damaging Het
Obox6 A T 7: 15,834,845 H35Q possibly damaging Het
Olfr324 A G 11: 58,598,307 I304V probably damaging Het
Olfr890 T A 9: 38,143,729 I198N possibly damaging Het
Pkig T A 2: 163,721,227 I26N possibly damaging Het
Plekhm2 C T 4: 141,642,439 V82M possibly damaging Het
Plppr2 G A 9: 21,947,924 A446T probably damaging Het
Psme4 T A 11: 30,804,353 F203L probably benign Het
Sh3bp1 A G 15: 78,903,680 K137E probably damaging Het
Shisa5 T A 9: 109,056,040 I126N probably damaging Het
Slc11a1 T C 1: 74,375,772 L21P probably benign Het
Slc35f1 C T 10: 52,933,195 P93S probably damaging Het
Slc4a4 A G 5: 89,046,308 T172A probably damaging Het
Slc9c1 A T 16: 45,573,347 Y551F probably benign Het
Spata31 T C 13: 64,921,798 S587P probably benign Het
Syna C A 5: 134,559,152 M314I probably benign Het
Taf5l A G 8: 124,003,413 L144P probably damaging Het
Tbccd1 T C 16: 22,822,521 T369A probably benign Het
Tnfrsf11b A T 15: 54,256,097 C160* probably null Het
Trim45 A G 3: 100,922,967 N19S probably benign Het
Uba2 A G 7: 34,151,030 F364S probably damaging Het
Unc50 T A 1: 37,437,242 L161Q probably damaging Het
Uso1 A T 5: 92,201,133 probably null Het
Usp25 A G 16: 77,114,950 I956V probably benign Het
Utf1 C A 7: 139,944,300 L143I probably damaging Het
Vmn1r158 C T 7: 22,790,718 C22Y probably damaging Het
Vmn1r36 T A 6: 66,716,772 M40L probably benign Het
Vmn2r43 A G 7: 8,255,056 V386A possibly damaging Het
Vps9d1 C A 8: 123,247,039 R335L probably damaging Het
Wasf1 T A 10: 40,926,589 V80D probably damaging Het
Wdr72 G A 9: 74,276,016 V1077I possibly damaging Het
Wnt8a A G 18: 34,542,369 M1V probably null Het
Zbtb26 A G 2: 37,436,335 S230P possibly damaging Het
Zfp335 A G 2: 164,892,605 V1247A probably damaging Het
Zfp429 T C 13: 67,390,386 N313S possibly damaging Het
Zfp74 A T 7: 29,935,144 C380S probably damaging Het
Zfyve21 G A 12: 111,824,894 E134K probably damaging Het
Zmynd11 T C 13: 9,689,580 T474A possibly damaging Het
Other mutations in Cd8a
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00737:Cd8a APN 6 71373707 missense probably benign 0.04
IGL02342:Cd8a APN 6 71373739 missense probably damaging 1.00
Alfalfa UTSW 6 71373728 missense probably damaging 0.99
Sprouts UTSW 6 71373929 missense probably damaging 0.97
wenzhou UTSW 6 71373872 missense probably benign 0.02
PIT4618001:Cd8a UTSW 6 71373677 missense possibly damaging 0.94
R0212:Cd8a UTSW 6 71373649 missense probably benign 0.01
R1158:Cd8a UTSW 6 71373728 missense probably damaging 0.99
R4541:Cd8a UTSW 6 71373872 missense probably benign 0.02
R5836:Cd8a UTSW 6 71373791 missense possibly damaging 0.48
R6390:Cd8a UTSW 6 71373929 missense probably damaging 0.97
R6889:Cd8a UTSW 6 71374562 missense probably damaging 1.00
R7773:Cd8a UTSW 6 71373815 missense probably benign 0.01
Z1088:Cd8a UTSW 6 71373686 missense possibly damaging 0.85
Z1177:Cd8a UTSW 6 71374593 missense possibly damaging 0.92
Predicted Primers PCR Primer

Sequencing Primer
Posted On 2014-06-23