Incidental Mutation 'R0849:Atxn2'
ID 77058
Institutional Source Beutler Lab
Gene Symbol Atxn2
Ensembl Gene ENSMUSG00000042605
Gene Name ataxin 2
Synonyms 9630045M23Rik, ATX2, Sca2
MMRRC Submission 039028-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.783) question?
Stock # R0849 (G1)
Quality Score 178
Status Not validated
Chromosome 5
Chromosomal Location 121849672-121954372 bp(+) (GRCm39)
Type of Mutation splice site
DNA Base Change (assembly) T to A at 121885484 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change
Ref Sequence ENSEMBL: ENSMUSP00000124070 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000051950] [ENSMUST00000161064] [ENSMUST00000225761]
AlphaFold no structure available at present
Predicted Effect probably benign
Transcript: ENSMUST00000051950
AA Change: D230E

PolyPhen 2 Score 0.338 (Sensitivity: 0.90; Specificity: 0.89)
SMART Domains Protein: ENSMUSP00000056715
Gene: ENSMUSG00000042605
AA Change: D230E

DomainStartEndE-ValueType
low complexity region 32 42 N/A INTRINSIC
low complexity region 46 69 N/A INTRINSIC
low complexity region 93 116 N/A INTRINSIC
low complexity region 128 144 N/A INTRINSIC
low complexity region 168 219 N/A INTRINSIC
Pfam:SM-ATX 236 307 6.4e-23 PFAM
LsmAD 378 446 8.57e-25 SMART
low complexity region 520 540 N/A INTRINSIC
low complexity region 544 576 N/A INTRINSIC
low complexity region 685 705 N/A INTRINSIC
low complexity region 807 838 N/A INTRINSIC
low complexity region 864 879 N/A INTRINSIC
Pfam:PAM2 880 897 5.7e-9 PFAM
low complexity region 1128 1165 N/A INTRINSIC
low complexity region 1185 1196 N/A INTRINSIC
low complexity region 1245 1261 N/A INTRINSIC
Predicted Effect noncoding transcript
Transcript: ENSMUST00000160813
Predicted Effect probably null
Transcript: ENSMUST00000161064
SMART Domains Protein: ENSMUSP00000124070
Gene: ENSMUSG00000042605

DomainStartEndE-ValueType
LsmAD 69 137 8.57e-25 SMART
low complexity region 211 231 N/A INTRINSIC
low complexity region 235 267 N/A INTRINSIC
low complexity region 376 396 N/A INTRINSIC
low complexity region 498 529 N/A INTRINSIC
low complexity region 555 570 N/A INTRINSIC
Pfam:PAM2 571 588 3.5e-9 PFAM
low complexity region 801 838 N/A INTRINSIC
low complexity region 858 869 N/A INTRINSIC
low complexity region 915 923 N/A INTRINSIC
Predicted Effect noncoding transcript
Transcript: ENSMUST00000162611
Predicted Effect noncoding transcript
Transcript: ENSMUST00000195919
Predicted Effect probably benign
Transcript: ENSMUST00000225761
AA Change: D80E

PolyPhen 2 Score 0.008 (Sensitivity: 0.96; Specificity: 0.76)
Coding Region Coverage
  • 1x: 99.3%
  • 3x: 98.5%
  • 10x: 96.5%
  • 20x: 92.5%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene belongs to a group of genes that is associated with microsatellite-expansion diseases, a class of neurological and neuromuscular disorders caused by expansion of short stretches of repetitive DNA. The protein encoded by this gene has two globular domains near the N-terminus, one of which contains a clathrin-mediated trans-Golgi signal and an endoplasmic reticulum exit signal. The encoded cytoplasmic protein localizes to the endoplasmic reticulum and plasma membrane, is involved in endocytosis, and modulates mTOR signals, modifying ribosomal translation and mitochondrial function. The N-terminal region of the protein contains a polyglutamine tract of 14-31 residues that can be expanded in the pathogenic state to 32-200 residues. Intermediate length expansions of this tract increase susceptibility to amyotrophic lateral sclerosis, while long expansions of this tract result in spinocerebellar ataxia-2, an autosomal-dominantly inherited, neurodegenerative disorder. Genome-wide association studies indicate that loss-of-function mutations in this gene may be associated with susceptibility to type I diabetes, obesity and hypertension. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2016]
PHENOTYPE: Homozygous mice exhibit an enlarged fat pad, hepatic steatosis and enlarged seminal vesicles. A mild defect in motor learning is seen, but no other notable behavioral or neurological defects are detectable. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 43 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Arhgap5 T C 12: 52,566,406 (GRCm39) F1126L probably benign Het
Arhgef11 G T 3: 87,643,203 (GRCm39) A1472S probably benign Het
Armc9 G A 1: 86,184,992 (GRCm39) R681K probably benign Het
B3gnt6 C A 7: 97,843,950 (GRCm39) L3F probably benign Het
Cand2 A G 6: 115,769,352 (GRCm39) T721A probably damaging Het
Cntn2 A T 1: 132,450,124 (GRCm39) M590K probably benign Het
Cntn4 A T 6: 106,644,418 (GRCm39) D622V probably damaging Het
Des T G 1: 75,337,272 (GRCm39) S71A probably benign Het
Dnah5 C A 15: 28,263,745 (GRCm39) R827S probably damaging Het
Dstn G A 2: 143,780,455 (GRCm39) G52S probably benign Het
Eln T A 5: 134,736,835 (GRCm39) R704* probably null Het
Fezf2 T A 14: 12,342,607 (GRCm38) K419N probably damaging Het
Gm2381 G A 7: 42,469,372 (GRCm39) Q251* probably null Het
Grin3a G A 4: 49,665,501 (GRCm39) R1045* probably null Het
Herc2 T A 7: 55,856,326 (GRCm39) H3921Q probably damaging Het
Hs3st2 A G 7: 121,100,255 (GRCm39) E367G possibly damaging Het
Hydin G A 8: 111,325,616 (GRCm39) R4675H probably damaging Het
Inhca A C 9: 103,140,256 (GRCm39) Y488D possibly damaging Het
Irf2bp1 T C 7: 18,738,659 (GRCm39) S100P possibly damaging Het
Itga10 A G 3: 96,559,846 (GRCm39) I500M possibly damaging Het
Kcnt2 T C 1: 140,435,500 (GRCm39) V496A probably damaging Het
Mansc1 T C 6: 134,587,670 (GRCm39) D169G probably benign Het
Mdn1 T A 4: 32,741,835 (GRCm39) S3869T probably damaging Het
Mrgprb4 G A 7: 47,848,868 (GRCm39) T20I probably benign Het
Nek4 A G 14: 30,679,253 (GRCm39) E198G probably damaging Het
Or12e8 G T 2: 87,188,609 (GRCm39) V274L probably benign Het
Or2y10 G A 11: 49,455,129 (GRCm39) C127Y probably damaging Het
Or5w11 C A 2: 87,459,626 (GRCm39) T273K possibly damaging Het
Ppfia4 A T 1: 134,247,110 (GRCm39) F537I probably benign Het
Rarb A G 14: 16,434,293 (GRCm38) V295A probably damaging Het
Ryr1 A G 7: 28,740,104 (GRCm39) S3941P probably damaging Het
Scnn1b A G 7: 121,511,698 (GRCm39) N370S probably damaging Het
Stard9 C A 2: 120,504,117 (GRCm39) S221R probably damaging Het
Sv2c C T 13: 96,126,319 (GRCm39) G311D probably damaging Het
Tas2r109 T C 6: 132,957,856 (GRCm39) I25V probably benign Het
Tbcel A C 9: 42,348,453 (GRCm39) I305S probably damaging Het
Tmem35b A G 4: 127,019,990 (GRCm39) probably null Het
Tmem38b T C 4: 53,840,765 (GRCm39) L60S probably damaging Het
Tmtc4 A G 14: 123,182,966 (GRCm39) I244T possibly damaging Het
Usp9y C A Y: 1,394,002 (GRCm39) C576F probably damaging Het
Vcan A T 13: 89,853,072 (GRCm39) N629K possibly damaging Het
Vmn2r22 T C 6: 123,614,363 (GRCm39) Y409C probably damaging Het
Vmn2r-ps158 A G 7: 42,674,142 (GRCm39) Y400C probably damaging Het
Other mutations in Atxn2
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00656:Atxn2 APN 5 121,933,118 (GRCm39) missense probably benign 0.00
IGL00798:Atxn2 APN 5 121,933,298 (GRCm39) missense possibly damaging 0.58
IGL01518:Atxn2 APN 5 121,949,042 (GRCm39) missense probably damaging 1.00
IGL01737:Atxn2 APN 5 121,935,407 (GRCm39) missense probably damaging 0.98
IGL01832:Atxn2 APN 5 121,944,331 (GRCm39) nonsense probably null
IGL02122:Atxn2 APN 5 121,916,093 (GRCm39) missense probably damaging 1.00
IGL02333:Atxn2 APN 5 121,919,450 (GRCm39) missense probably damaging 1.00
IGL02742:Atxn2 APN 5 121,919,399 (GRCm39) missense possibly damaging 0.75
IGL03028:Atxn2 APN 5 121,948,972 (GRCm39) missense probably damaging 1.00
IGL03282:Atxn2 APN 5 121,923,298 (GRCm39) missense probably benign 0.00
R0387:Atxn2 UTSW 5 121,940,206 (GRCm39) missense possibly damaging 0.83
R0653:Atxn2 UTSW 5 121,910,841 (GRCm39) missense probably damaging 0.99
R1305:Atxn2 UTSW 5 121,887,247 (GRCm39) missense probably damaging 1.00
R1440:Atxn2 UTSW 5 121,941,145 (GRCm39) critical splice donor site probably null
R1471:Atxn2 UTSW 5 121,924,437 (GRCm39) missense probably damaging 1.00
R1521:Atxn2 UTSW 5 121,917,654 (GRCm39) missense probably damaging 1.00
R1528:Atxn2 UTSW 5 121,951,593 (GRCm39) missense probably damaging 1.00
R1528:Atxn2 UTSW 5 121,940,171 (GRCm39) missense probably damaging 0.99
R2083:Atxn2 UTSW 5 121,922,069 (GRCm39) missense probably benign 0.00
R2197:Atxn2 UTSW 5 121,944,280 (GRCm39) splice site probably null
R2217:Atxn2 UTSW 5 121,941,140 (GRCm39) missense probably damaging 1.00
R2218:Atxn2 UTSW 5 121,941,140 (GRCm39) missense probably damaging 1.00
R2420:Atxn2 UTSW 5 121,940,142 (GRCm39) critical splice acceptor site probably null
R2421:Atxn2 UTSW 5 121,940,142 (GRCm39) critical splice acceptor site probably null
R2510:Atxn2 UTSW 5 121,919,456 (GRCm39) missense probably damaging 1.00
R3706:Atxn2 UTSW 5 121,923,931 (GRCm39) critical splice donor site probably null
R4604:Atxn2 UTSW 5 121,919,406 (GRCm39) missense probably damaging 1.00
R4852:Atxn2 UTSW 5 121,952,474 (GRCm39) missense probably damaging 0.97
R4914:Atxn2 UTSW 5 121,887,159 (GRCm39) missense probably damaging 1.00
R4982:Atxn2 UTSW 5 121,952,406 (GRCm39) missense possibly damaging 0.66
R5172:Atxn2 UTSW 5 121,933,098 (GRCm39) splice site probably null
R5213:Atxn2 UTSW 5 121,952,543 (GRCm39) splice site probably null
R5655:Atxn2 UTSW 5 121,885,489 (GRCm39) missense probably damaging 0.97
R5775:Atxn2 UTSW 5 121,951,512 (GRCm39) missense probably damaging 1.00
R5782:Atxn2 UTSW 5 121,935,373 (GRCm39) missense probably damaging 1.00
R6015:Atxn2 UTSW 5 121,949,055 (GRCm39) missense probably damaging 1.00
R6438:Atxn2 UTSW 5 121,917,495 (GRCm39) missense probably damaging 1.00
R6529:Atxn2 UTSW 5 121,949,677 (GRCm39) critical splice donor site probably null
R6659:Atxn2 UTSW 5 121,916,027 (GRCm39) missense probably benign 0.10
R6864:Atxn2 UTSW 5 121,917,557 (GRCm39) missense probably damaging 1.00
R7035:Atxn2 UTSW 5 121,949,530 (GRCm39) nonsense probably null
R7166:Atxn2 UTSW 5 121,934,460 (GRCm39) missense possibly damaging 0.90
R7253:Atxn2 UTSW 5 121,916,084 (GRCm39) missense probably damaging 1.00
R7257:Atxn2 UTSW 5 121,923,880 (GRCm39) missense possibly damaging 0.62
R7467:Atxn2 UTSW 5 121,940,330 (GRCm39) critical splice donor site probably null
R7544:Atxn2 UTSW 5 121,919,431 (GRCm39) missense probably damaging 1.00
R7648:Atxn2 UTSW 5 121,934,440 (GRCm39) missense probably damaging 0.99
R7883:Atxn2 UTSW 5 121,940,180 (GRCm39) missense possibly damaging 0.79
R8097:Atxn2 UTSW 5 121,887,286 (GRCm39) missense probably damaging 1.00
R8784:Atxn2 UTSW 5 121,933,091 (GRCm39) missense probably benign 0.00
R8835:Atxn2 UTSW 5 121,940,248 (GRCm39) missense possibly damaging 0.63
R8880:Atxn2 UTSW 5 121,948,973 (GRCm39) missense probably benign 0.24
R8983:Atxn2 UTSW 5 121,916,063 (GRCm39) missense probably damaging 1.00
R9254:Atxn2 UTSW 5 121,885,509 (GRCm39) missense probably damaging 1.00
R9332:Atxn2 UTSW 5 121,923,425 (GRCm39) missense probably damaging 1.00
R9379:Atxn2 UTSW 5 121,885,509 (GRCm39) missense probably damaging 1.00
R9412:Atxn2 UTSW 5 121,940,201 (GRCm39) missense possibly damaging 0.84
R9649:Atxn2 UTSW 5 121,949,055 (GRCm39) missense probably damaging 0.98
R9656:Atxn2 UTSW 5 121,922,061 (GRCm39) missense possibly damaging 0.78
X0028:Atxn2 UTSW 5 121,940,146 (GRCm39) missense probably benign 0.01
Z1176:Atxn2 UTSW 5 121,916,053 (GRCm39) missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- TCACATGGAGGTCTGAGTCTCCTG -3'
(R):5'- GACTGGCAATGATCAAGTTTCAGCAC -3'

Sequencing Primer
(F):5'- ATGGTTGGTTGATTTGTTTAAAACTC -3'
(R):5'- CTATTGGTACAGGACTGGAAACTCC -3'
Posted On 2013-10-16