Incidental Mutation 'R1158:Cd8a'
ID101874
Institutional Source Beutler Lab
Gene Symbol Cd8a
Ensembl Gene ENSMUSG00000053977
Gene NameCD8 antigen, alpha chain
SynonymsLy-35, Lyt-2, Ly-B, Ly-2
MMRRC Submission 039231-MU
Accession Numbers
Is this an essential gene? Probably non essential (E-score: 0.040) question?
Stock #R1158 (G1)
Quality Score225
Status Validated
Chromosome6
Chromosomal Location71373427-71379173 bp(+) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) T to A at 71373728 bp
ZygosityHeterozygous
Amino Acid Change Valine to Aspartic acid at position 59 (V59D)
Ref Sequence ENSEMBL: ENSMUSP00000068123 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000066747] [ENSMUST00000172321]
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 damaging
Transcript: ENSMUST00000066747
AA Change: V59D

PolyPhen 2 Score 0.989 (Sensitivity: 0.72; Specificity: 0.97)
SMART Domains Protein: ENSMUSP00000068123
Gene: ENSMUSG00000053977
AA Change: V59D

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 damaging
Transcript: ENSMUST00000172321
AA Change: V59D

PolyPhen 2 Score 0.961 (Sensitivity: 0.78; Specificity: 0.95)
SMART Domains Protein: ENSMUSP00000131873
Gene: ENSMUSG00000053977
AA Change: V59D

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 noncoding transcript
Transcript: ENSMUST00000205022
Predicted Effect noncoding transcript
Transcript: ENSMUST00000205054
Meta Mutation Damage Score 0.0376 question?
Coding Region Coverage
  • 1x: 98.9%
  • 3x: 98.0%
  • 10x: 95.3%
  • 20x: 89.3%
Validation Efficiency 98% (43/44)
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: 42 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adpgk T C 9: 59,310,283 V193A possibly damaging Het
Ahnak A C 19: 9,013,926 E4191D probably benign Het
BC024139 T A 15: 76,120,342 probably benign Het
Bpifb9a T G 2: 154,262,264 I209S probably benign Het
Bst1 T G 5: 43,840,492 probably null Het
Cacna1c C T 6: 118,612,625 R1605H probably damaging Het
Carf A G 1: 60,147,839 K499E probably benign Het
Casq2 A G 3: 102,116,883 E147G probably damaging Het
Chrm5 T C 2: 112,479,869 T301A probably benign Het
Cog5 G A 12: 31,870,057 probably benign Het
Csmd3 T C 15: 48,292,774 probably null Het
Dopey1 T C 9: 86,485,556 S31P probably damaging Het
Epb41 T C 4: 132,000,191 probably benign Het
Fhod3 C T 18: 24,985,236 A210V probably damaging Het
Gdpgp1 T C 7: 80,238,502 F94L probably benign Het
Gm10264 A T 12: 88,329,668 I139F unknown Het
Hlx G T 1: 184,731,987 A52D probably damaging Het
Htr3b T C 9: 48,936,090 K375R possibly damaging Het
Inhbe G A 10: 127,351,317 R77W probably damaging Het
Itgb8 T C 12: 119,202,496 E100G probably damaging Het
Jakmip1 T C 5: 37,091,128 V44A possibly damaging Het
Lrp12 A G 15: 39,878,431 V315A probably damaging Het
Lrp1b T A 2: 40,677,494 T4074S probably benign Het
Map3k2 A G 18: 32,217,158 T354A probably benign Het
Mmp16 T C 4: 17,987,726 probably null Het
Mphosph10 T C 7: 64,388,859 probably benign Het
Olfr1263 T A 2: 90,015,254 I108N possibly damaging Het
Olfr1297 T C 2: 111,621,741 E111G probably damaging Het
Olfr1328 A T 4: 118,934,417 C144S probably damaging Het
Olfr472 G A 7: 107,902,923 V69I possibly damaging Het
Olfr514 A G 7: 108,825,178 S274P probably damaging Het
Slc43a3 C A 2: 84,937,796 F37L probably benign Het
Slf2 G T 19: 44,931,416 A36S probably damaging Het
Sorcs1 T C 19: 50,144,160 probably benign Het
Thsd7b A C 1: 130,189,935 probably null Het
Tnfrsf18 A C 4: 156,028,282 I142L probably benign Het
Ttn A G 2: 76,802,511 probably benign Het
Tufm T A 7: 126,489,442 probably null Het
Vmn2r69 A T 7: 85,409,850 probably benign Het
Zfp385c T C 11: 100,629,883 probably benign Het
Zfp964 T A 8: 69,663,853 C368S unknown Het
Zswim8 G A 14: 20,721,668 probably benign 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
wenzhou UTSW 6 71373872 missense probably benign 0.02
R0212:Cd8a UTSW 6 71373649 missense probably benign 0.01
R1813:Cd8a UTSW 6 71373963 missense possibly damaging 0.47
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
Z1088:Cd8a UTSW 6 71373686 missense possibly damaging 0.85
Predicted Primers
Posted OnJan 15, 2014