Incidental Mutation 'R7773:Cd8a'
ID 598707
Institutional Source Beutler Lab
Gene Symbol Cd8a
Ensembl Gene ENSMUSG00000053977
Gene Name CD8 subunit alpha
Synonyms Lyt-2, Ly-B, Ly-35, Ly-2
MMRRC Submission 045829-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.089) question?
Stock # R7773 (G1)
Quality Score 225.009
Status Validated
Chromosome 6
Chromosomal Location 71350411-71356155 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 71350799 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Asparagine to Serine at position 88 (N88S)
Ref Sequence ENSEMBL: ENSMUSP00000068123 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000066747] [ENSMUST00000172321]
AlphaFold P01731
PDB Structure MURINE CD8AA ECTODOMAIN FRAGMENT IN COMPLEX WITH H-2KB/VSV8 [X-RAY DIFFRACTION]
The Crystal Structure of a TL/CD8aa Complex at 2.1A resolution:Implications for Memory T cell Generation, Co-receptor Preference and Affinity [X-RAY DIFFRACTION]
CD8alpha-alpha in complex with YTS 105.18 Fab [X-RAY DIFFRACTION]
Crystal structure of a CD8ab heterodimer [X-RAY DIFFRACTION]
Crystal structure of CD8alpha-beta in complex with YTS 156.7 FAB [X-RAY DIFFRACTION]
Crystal structure of the CD8 alpha beta/H-2Dd complex [X-RAY DIFFRACTION]
Predicted Effect probably benign
Transcript: ENSMUST00000066747
AA Change: N88S

PolyPhen 2 Score 0.010 (Sensitivity: 0.96; Specificity: 0.77)
SMART Domains Protein: ENSMUSP00000068123
Gene: ENSMUSG00000053977
AA Change: N88S

DomainStartEndE-ValueType
low complexity region 9 26 N/A INTRINSIC
IG 38 148 1.46e-5 SMART
transmembrane domain 195 217 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000172321
AA Change: N88S

PolyPhen 2 Score 0.002 (Sensitivity: 0.99; Specificity: 0.30)
SMART Domains Protein: ENSMUSP00000131873
Gene: ENSMUSG00000053977
AA Change: N88S

DomainStartEndE-ValueType
low complexity region 9 26 N/A INTRINSIC
IG 38 148 1.46e-5 SMART
transmembrane domain 195 217 N/A INTRINSIC
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 100.0%
  • 10x: 99.8%
  • 20x: 99.3%
Validation Efficiency 98% (55/56)
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: 59 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1700006A11Rik A G 3: 124,206,180 (GRCm39) I336T probably benign Het
4930519P11Rik T C 2: 154,455,107 (GRCm39) Y84C unknown Het
4930568D16Rik C T 2: 35,244,606 (GRCm39) G249S probably damaging Het
AAdacl4fm3 A T 4: 144,430,047 (GRCm39) L314Q probably damaging Het
Adprhl1 C T 8: 13,298,682 (GRCm39) V83I probably damaging Het
Agbl1 T A 7: 76,348,585 (GRCm39) V894E unknown Het
Amigo3 T C 9: 107,931,867 (GRCm39) L430P probably benign Het
Aoc1 A G 6: 48,883,146 (GRCm39) I341V probably benign Het
Bod1l A G 5: 41,990,055 (GRCm39) S223P probably benign Het
Cacnb3 T C 15: 98,537,819 (GRCm39) probably null Het
Ccdc63 G T 5: 122,247,335 (GRCm39) N503K probably damaging Het
Ccdc83 T A 7: 89,879,120 (GRCm39) I225F probably damaging Het
Cd200r1 A G 16: 44,610,050 (GRCm39) T90A possibly damaging Het
Cep170 A G 1: 176,567,642 (GRCm39) V152A Het
Chid1 T C 7: 141,109,518 (GRCm39) M123V probably benign Het
Cnnm4 T C 1: 36,538,603 (GRCm39) V595A probably benign Het
Coro7 A G 16: 4,449,870 (GRCm39) L630P probably damaging Het
Cpvl A G 6: 53,908,890 (GRCm39) probably null Het
Edem3 A T 1: 151,687,347 (GRCm39) K762* probably null Het
Elp6 T A 9: 110,141,627 (GRCm39) probably null Het
Emilin3 A T 2: 160,752,718 (GRCm39) Y77* probably null Het
Fam234b T A 6: 135,220,912 (GRCm39) I641N probably benign Het
Farsa T C 8: 85,590,781 (GRCm39) probably null Het
Foxf2 T C 13: 31,811,182 (GRCm39) S374P probably benign Het
Gm11596 A T 11: 99,683,667 (GRCm39) I151N unknown Het
Gm9817 C T 13: 45,232,427 (GRCm39) Q77* probably null Het
Gon4l A G 3: 88,803,102 (GRCm39) K1238E probably benign Het
H13 A G 2: 152,537,431 (GRCm39) Y292C probably damaging Het
Hip1r A G 5: 124,139,504 (GRCm39) N928S probably benign Het
Iqcf4 T C 9: 106,445,812 (GRCm39) N112D probably benign Het
Jak3 A C 8: 72,131,686 (GRCm39) T125P probably benign Het
Krt7 A C 15: 101,311,913 (GRCm39) K124Q possibly damaging Het
Ldc1 T C 4: 130,114,169 (GRCm39) N83D probably damaging Het
Lrrc66 G A 5: 73,764,664 (GRCm39) S793F probably damaging Het
Mycbp2 C T 14: 103,485,840 (GRCm39) V1074I probably damaging Het
Nckap5 T C 1: 125,954,581 (GRCm39) D657G probably benign Het
Nt5el A G 13: 105,218,793 (GRCm39) I42M probably damaging Het
Or5b113 T A 19: 13,342,598 (GRCm39) V202E probably benign Het
Or8k21 T C 2: 86,145,034 (GRCm39) I199V probably benign Het
Osbpl7 A G 11: 96,941,548 (GRCm39) S24G probably benign Het
Pcm1 G T 8: 41,762,610 (GRCm39) E1385* probably null Het
Poc5 A G 13: 96,547,143 (GRCm39) T469A probably damaging Het
Ppp3ca A G 3: 136,596,222 (GRCm39) T296A probably benign Het
Prl6a1 T C 13: 27,502,125 (GRCm39) I164T probably damaging Het
Psmd6 GCAGAGCGGGCAGGGCATCTCACTGACCCTGTCACCTACCCAGAGCGGGCAGGGCATCTCACTGACCCTGTCACCTACCCAGAGCGGGCAGGGCATCTCACTGACC GCAGAGCGGGCAGGGCATCTCACTGACCCTGTCACCTACCCAGAGCGGGCAGGGCATCTCACTGACC 14: 14,119,882 (GRCm38) probably null Het
Rnf149 A C 1: 39,604,299 (GRCm39) M188R possibly damaging Het
Rpl10l T C 12: 66,331,041 (GRCm39) I31V probably benign Het
Serinc5 T C 13: 92,797,592 (GRCm39) S32P probably damaging Het
Sirt1 T A 10: 63,162,562 (GRCm39) K137M possibly damaging Het
Smc4 A G 3: 68,923,496 (GRCm39) Y251C probably damaging Het
Sod3 A C 5: 52,525,643 (GRCm39) E114A possibly damaging Het
Tgfbr3 A G 5: 107,288,368 (GRCm39) V431A probably benign Het
Tlr4 T C 4: 66,757,836 (GRCm39) S210P probably damaging Het
Trub2 G T 2: 29,676,520 (GRCm39) T70N probably benign Het
Tsga10 A T 1: 37,874,323 (GRCm39) C159S unknown Het
Vmn1r15 A T 6: 57,235,644 (GRCm39) I171F probably benign Het
Vmn2r50 T A 7: 9,771,562 (GRCm39) H713L possibly damaging Het
Zcchc14 T C 8: 122,378,514 (GRCm39) S43G unknown Het
Zfp638 T C 6: 83,956,196 (GRCm39) I1601T probably damaging Het
Other mutations in Cd8a
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00737:Cd8a APN 6 71,350,691 (GRCm39) missense probably benign 0.04
IGL02342:Cd8a APN 6 71,350,723 (GRCm39) missense probably damaging 1.00
Alfalfa UTSW 6 71,350,712 (GRCm39) missense probably damaging 0.99
Sprouts UTSW 6 71,350,913 (GRCm39) missense probably damaging 0.97
wenzhou UTSW 6 71,350,856 (GRCm39) missense probably benign 0.02
PIT4618001:Cd8a UTSW 6 71,350,661 (GRCm39) missense possibly damaging 0.94
R0212:Cd8a UTSW 6 71,350,633 (GRCm39) missense probably benign 0.01
R1158:Cd8a UTSW 6 71,350,712 (GRCm39) missense probably damaging 0.99
R1813:Cd8a UTSW 6 71,350,947 (GRCm39) missense possibly damaging 0.47
R4541:Cd8a UTSW 6 71,350,856 (GRCm39) missense probably benign 0.02
R5836:Cd8a UTSW 6 71,350,775 (GRCm39) missense possibly damaging 0.48
R6390:Cd8a UTSW 6 71,350,913 (GRCm39) missense probably damaging 0.97
R6889:Cd8a UTSW 6 71,351,546 (GRCm39) missense probably damaging 1.00
Z1088:Cd8a UTSW 6 71,350,670 (GRCm39) missense possibly damaging 0.85
Z1177:Cd8a UTSW 6 71,351,577 (GRCm39) missense possibly damaging 0.92
Predicted Primers PCR Primer
(F):5'- GCTGGGTGAGTCGATTATCC -3'
(R):5'- TTTCTGAAGGACTGGCACG -3'

Sequencing Primer
(F):5'- TTATCCTGGGGAGTGGAGAAGC -3'
(R):5'- CTGGCACGACAGAACTGAAGTAC -3'
Posted On 2019-11-26