Incidental Mutation 'R7041:Atxn1'
ID 547072
Institutional Source Beutler Lab
Gene Symbol Atxn1
Ensembl Gene ENSMUSG00000046876
Gene Name ataxin 1
Synonyms Atx1, Sca1, 2900016G23Rik
MMRRC Submission 045140-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R7041 (G1)
Quality Score 225.009
Status Validated
Chromosome 13
Chromosomal Location 45703231-46118467 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 45720311 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Isoleucine to Threonine at position 528 (I528T)
Ref Sequence ENSEMBL: ENSMUSP00000137439 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000091628] [ENSMUST00000167708] [ENSMUST00000180110]
AlphaFold P54254
Predicted Effect probably damaging
Transcript: ENSMUST00000091628
AA Change: I528T

PolyPhen 2 Score 0.996 (Sensitivity: 0.55; Specificity: 0.98)
SMART Domains Protein: ENSMUSP00000089217
Gene: ENSMUSG00000046876
AA Change: I528T

DomainStartEndE-ValueType
low complexity region 47 67 N/A INTRINSIC
low complexity region 153 168 N/A INTRINSIC
Pfam:ATXN-1_C 391 421 8.7e-15 PFAM
AXH 545 664 1.42e-82 SMART
Predicted Effect probably damaging
Transcript: ENSMUST00000167708
AA Change: I528T

PolyPhen 2 Score 0.996 (Sensitivity: 0.55; Specificity: 0.98)
SMART Domains Protein: ENSMUSP00000129890
Gene: ENSMUSG00000046876
AA Change: I528T

DomainStartEndE-ValueType
low complexity region 47 67 N/A INTRINSIC
low complexity region 153 168 N/A INTRINSIC
Pfam:ATXN-1_C 391 421 8.7e-15 PFAM
AXH 545 664 1.42e-82 SMART
Predicted Effect probably damaging
Transcript: ENSMUST00000180110
AA Change: I528T

PolyPhen 2 Score 0.996 (Sensitivity: 0.55; Specificity: 0.98)
SMART Domains Protein: ENSMUSP00000137439
Gene: ENSMUSG00000046876
AA Change: I528T

DomainStartEndE-ValueType
low complexity region 47 67 N/A INTRINSIC
low complexity region 153 168 N/A INTRINSIC
Pfam:ATXN-1_C 402 421 3e-10 PFAM
low complexity region 537 548 N/A INTRINSIC
Pfam:AXH 550 671 1.1e-44 PFAM
Meta Mutation Damage Score 0.1319 question?
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 100.0%
  • 10x: 99.8%
  • 20x: 99.3%
Validation Efficiency 96% (53/55)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The autosomal dominant cerebellar ataxias (ADCA) are a heterogeneous group of neurodegenerative disorders characterized by progressive degeneration of the cerebellum, brain stem and spinal cord. Clinically, ADCA has been divided into three groups: ADCA types I-III. ADCAI is genetically heterogeneous, with five genetic loci, designated spinocerebellar ataxia (SCA) 1, 2, 3, 4 and 6, being assigned to five different chromosomes. ADCAII, which always presents with retinal degeneration (SCA7), and ADCAIII often referred to as the `pure' cerebellar syndrome (SCA5), are most likely homogeneous disorders. Several SCA genes have been cloned and shown to contain CAG repeats in their coding regions. ADCA is caused by the expansion of the CAG repeats, producing an elongated polyglutamine tract in the corresponding protein. The expanded repeats are variable in size and unstable, usually increasing in size when transmitted to successive generations. The function of the ataxins is not known. This locus has been mapped to chromosome 6, and it has been determined that the diseased allele contains 40-83 CAG repeats, compared to 6-39 in the normal allele, and is associated with spinocerebellar ataxia type 1 (SCA1). At least two transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Jul 2016]
PHENOTYPE: Mice homozygous for a knock-out allele exhibit decreased exploration, impaired spatial working memory, impaired coordination, and decreased paired-pulse facilitation. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 54 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Acan G T 7: 78,748,096 (GRCm39) E956* probably null Het
Adam25 A T 8: 41,207,121 (GRCm39) H129L probably benign Het
Adgrl4 A T 3: 151,144,959 (GRCm39) H36L probably benign Het
Ago1 T A 4: 126,357,499 (GRCm39) I59F possibly damaging Het
Anapc1 A T 2: 128,470,576 (GRCm39) V1518E possibly damaging Het
B4galnt4 A G 7: 140,650,593 (GRCm39) H820R probably damaging Het
Cacna1h T C 17: 25,612,977 (GRCm39) E282G probably damaging Het
Camk1 T A 6: 113,316,475 (GRCm39) M95L probably benign Het
Capn7 C T 14: 31,058,642 (GRCm39) probably benign Het
Cav1 A G 6: 17,339,143 (GRCm39) E45G possibly damaging Het
Ccdc183 T G 2: 25,503,682 (GRCm39) E185A probably benign Het
Ccl2 T A 11: 81,926,489 (GRCm39) M1K probably null Het
Cep97 T A 16: 55,726,117 (GRCm39) H590L probably benign Het
Dsg1c A T 18: 20,399,201 (GRCm39) I102F probably damaging Het
Fcho2 A G 13: 98,921,334 (GRCm39) Y184H possibly damaging Het
Gart C T 16: 91,440,031 (GRCm39) probably benign Het
Gask1a A T 9: 121,794,467 (GRCm39) Q207L probably damaging Het
Golga3 G A 5: 110,356,450 (GRCm39) probably null Het
Hint3 G T 10: 30,486,380 (GRCm39) A133E probably damaging Het
Hspe1 T C 1: 55,128,376 (GRCm39) probably null Het
Insr A T 8: 3,308,418 (GRCm39) V206E probably benign Het
Insrr T C 3: 87,722,551 (GRCm39) S1258P probably damaging Het
Itga11 C T 9: 62,659,538 (GRCm39) T430M probably damaging Het
Jmjd1c G A 10: 67,056,388 (GRCm39) V890I possibly damaging Het
Kdm4b T A 17: 56,703,592 (GRCm39) S717R probably damaging Het
Large1 A T 8: 73,843,092 (GRCm39) C144S probably damaging Het
Lrat G T 3: 82,810,755 (GRCm39) Q89K probably benign Het
Lrrc66 A T 5: 73,765,899 (GRCm39) F381L possibly damaging Het
Myo15a A G 11: 60,396,832 (GRCm39) T2634A probably damaging Het
Nup205 T G 6: 35,201,470 (GRCm39) I1182M possibly damaging Het
Or2a51 T A 6: 43,178,837 (GRCm39) D86E probably benign Het
Or5m10 A T 2: 85,717,965 (GRCm39) I274F probably benign Het
Or6c66 T A 10: 129,461,603 (GRCm39) E109V probably damaging Het
Plekha6 T A 1: 133,200,198 (GRCm39) V259D possibly damaging Het
Prdm9 C A 17: 15,765,257 (GRCm39) A508S possibly damaging Het
Prickle2 A G 6: 92,353,286 (GRCm39) F783L probably benign Het
Ptprc T C 1: 138,054,047 (GRCm39) S31G probably benign Het
Rbak A T 5: 143,159,226 (GRCm39) I609N probably damaging Het
Rimklb A T 6: 122,436,176 (GRCm39) L134* probably null Het
Ripor2 A G 13: 24,877,749 (GRCm39) I250V probably benign Het
Sorbs1 G C 19: 40,365,244 (GRCm39) R180G probably benign Het
Spaca6 C T 17: 18,056,358 (GRCm39) L118F probably benign Het
Tmem167 G A 13: 90,246,533 (GRCm39) C19Y probably benign Het
Togaram1 C T 12: 65,067,160 (GRCm39) T1684I possibly damaging Het
Trappc8 T C 18: 21,007,729 (GRCm39) T129A probably benign Het
Ubash3a A G 17: 31,447,184 (GRCm39) S347G probably benign Het
Unc80 T C 1: 66,542,752 (GRCm39) S289P probably benign Het
Vmn2r11 A G 5: 109,202,816 (GRCm39) I87T probably damaging Het
Vmn2r54 A T 7: 12,363,751 (GRCm39) F381I probably damaging Het
Wdsub1 A G 2: 59,683,224 (GRCm39) L450P probably damaging Het
Xylt2 A G 11: 94,558,408 (GRCm39) probably null Het
Zfp429 A T 13: 67,538,830 (GRCm39) C205S probably damaging Het
Zfp60 T C 7: 27,448,451 (GRCm39) I373T probably benign Het
Zfp738 A G 13: 67,818,420 (GRCm39) S524P probably damaging Het
Other mutations in Atxn1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01374:Atxn1 APN 13 45,721,903 (GRCm39) utr 5 prime probably benign
IGL01467:Atxn1 APN 13 45,720,669 (GRCm39) missense probably damaging 1.00
IGL01482:Atxn1 APN 13 45,710,790 (GRCm39) missense probably benign 0.00
IGL01512:Atxn1 APN 13 45,720,077 (GRCm39) missense probably damaging 0.99
IGL01735:Atxn1 APN 13 45,720,198 (GRCm39) missense probably damaging 1.00
IGL02005:Atxn1 APN 13 45,721,701 (GRCm39) missense probably benign 0.00
IGL02333:Atxn1 APN 13 45,720,680 (GRCm39) missense probably damaging 1.00
Cormorant UTSW 13 45,710,545 (GRCm39) missense probably damaging 1.00
pelagic UTSW 13 45,720,288 (GRCm39) missense probably benign 0.05
R0136:Atxn1 UTSW 13 45,720,645 (GRCm39) missense probably damaging 0.99
R0180:Atxn1 UTSW 13 45,711,024 (GRCm39) missense probably damaging 1.00
R0299:Atxn1 UTSW 13 45,720,645 (GRCm39) missense probably damaging 0.99
R0540:Atxn1 UTSW 13 45,711,006 (GRCm39) missense probably damaging 1.00
R1220:Atxn1 UTSW 13 45,710,899 (GRCm39) missense probably benign 0.08
R1484:Atxn1 UTSW 13 45,711,052 (GRCm39) nonsense probably null
R1532:Atxn1 UTSW 13 45,720,386 (GRCm39) missense possibly damaging 0.95
R1885:Atxn1 UTSW 13 45,721,280 (GRCm39) missense probably benign 0.27
R2277:Atxn1 UTSW 13 45,710,544 (GRCm39) missense probably damaging 0.99
R2847:Atxn1 UTSW 13 45,720,175 (GRCm39) missense probably damaging 1.00
R2849:Atxn1 UTSW 13 45,720,175 (GRCm39) missense probably damaging 1.00
R4326:Atxn1 UTSW 13 46,119,443 (GRCm39) unclassified probably benign
R4626:Atxn1 UTSW 13 45,720,575 (GRCm39) missense probably damaging 1.00
R4768:Atxn1 UTSW 13 45,711,024 (GRCm39) missense probably damaging 1.00
R4944:Atxn1 UTSW 13 45,720,407 (GRCm39) missense probably damaging 1.00
R5011:Atxn1 UTSW 13 45,710,545 (GRCm39) missense probably damaging 1.00
R5061:Atxn1 UTSW 13 45,710,569 (GRCm39) missense probably damaging 1.00
R5293:Atxn1 UTSW 13 45,721,844 (GRCm39) missense probably damaging 1.00
R5299:Atxn1 UTSW 13 45,710,730 (GRCm39) missense probably benign 0.14
R5561:Atxn1 UTSW 13 45,720,347 (GRCm39) missense possibly damaging 0.49
R5667:Atxn1 UTSW 13 45,710,853 (GRCm39) missense probably benign 0.17
R6092:Atxn1 UTSW 13 45,720,288 (GRCm39) missense probably benign 0.05
R6272:Atxn1 UTSW 13 45,721,238 (GRCm39) missense possibly damaging 0.49
R6372:Atxn1 UTSW 13 45,710,932 (GRCm39) missense probably damaging 1.00
R6688:Atxn1 UTSW 13 45,721,147 (GRCm39) missense probably damaging 0.99
R6997:Atxn1 UTSW 13 45,721,095 (GRCm39) missense probably benign 0.04
R7578:Atxn1 UTSW 13 45,720,834 (GRCm39) missense probably benign 0.02
R7600:Atxn1 UTSW 13 45,710,536 (GRCm39) missense possibly damaging 0.90
R8112:Atxn1 UTSW 13 45,721,433 (GRCm39) missense probably benign
R8297:Atxn1 UTSW 13 45,720,505 (GRCm39) missense probably benign
R8411:Atxn1 UTSW 13 45,720,032 (GRCm39) missense probably benign 0.02
R8482:Atxn1 UTSW 13 45,721,426 (GRCm39) missense possibly damaging 0.75
R9022:Atxn1 UTSW 13 45,720,891 (GRCm39) missense probably damaging 1.00
R9269:Atxn1 UTSW 13 45,710,680 (GRCm39) missense probably benign 0.01
R9310:Atxn1 UTSW 13 45,721,494 (GRCm39) missense probably damaging 1.00
R9514:Atxn1 UTSW 13 45,721,433 (GRCm39) missense probably benign
R9626:Atxn1 UTSW 13 45,710,796 (GRCm39) missense possibly damaging 0.92
R9673:Atxn1 UTSW 13 45,710,622 (GRCm39) missense probably benign 0.01
R9744:Atxn1 UTSW 13 45,721,299 (GRCm39) nonsense probably null
Predicted Primers PCR Primer
(F):5'- AGGTCATTGCTAATCTCTGCAC -3'
(R):5'- GCAAGCAATCACCTATGCTGG -3'

Sequencing Primer
(F):5'- ATCTCTGCACTCTGGATGAAATC -3'
(R):5'- TGGTGATCCCAGGTAACCAG -3'
Posted On 2019-05-13