Incidental Mutation 'R5667:Atxn1'
ID 444495
Institutional Source Beutler Lab
Gene Symbol Atxn1
Ensembl Gene ENSMUSG00000046876
Gene Name ataxin 1
Synonyms Atx1, Sca1, 2900016G23Rik
MMRRC Submission 043310-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R5667 (G1)
Quality Score 225
Status Validated
Chromosome 13
Chromosomal Location 45703231-46118467 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 45710853 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Lysine to Arginine at position 693 (K693R)
Ref Sequence ENSEMBL: ENSMUSP00000137439 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000091628] [ENSMUST00000167708] [ENSMUST00000180110]
AlphaFold P54254
Predicted Effect probably benign
Transcript: ENSMUST00000091628
AA Change: K685R

PolyPhen 2 Score 0.175 (Sensitivity: 0.92; Specificity: 0.87)
SMART Domains Protein: ENSMUSP00000089217
Gene: ENSMUSG00000046876
AA Change: K685R

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 benign
Transcript: ENSMUST00000167708
AA Change: K685R

PolyPhen 2 Score 0.175 (Sensitivity: 0.92; Specificity: 0.87)
SMART Domains Protein: ENSMUSP00000129890
Gene: ENSMUSG00000046876
AA Change: K685R

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 benign
Transcript: ENSMUST00000180110
AA Change: K693R

PolyPhen 2 Score 0.175 (Sensitivity: 0.92; Specificity: 0.87)
SMART Domains Protein: ENSMUSP00000137439
Gene: ENSMUSG00000046876
AA Change: K693R

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
Predicted Effect noncoding transcript
Transcript: ENSMUST00000222227
Meta Mutation Damage Score 0.0632 question?
Coding Region Coverage
  • 1x: 99.4%
  • 3x: 98.8%
  • 10x: 97.6%
  • 20x: 96.0%
Validation Efficiency 96% (54/56)
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: 53 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
2700049A03Rik A T 12: 71,211,321 (GRCm39) E685V possibly damaging Het
2700049A03Rik G T 12: 71,211,320 (GRCm39) E685* probably null Het
Adamts16 A T 13: 70,984,494 (GRCm39) Y56* probably null Het
Ak2 T A 4: 128,902,040 (GRCm39) F238I probably damaging Het
Akap8l T C 17: 32,557,266 (GRCm39) Y115C probably damaging Het
Alms1 A G 6: 85,673,753 (GRCm39) D3116G probably damaging Het
Arhgap24 T G 5: 102,994,037 (GRCm39) probably null Het
Arhgap45 A G 10: 79,861,310 (GRCm39) E491G probably damaging Het
Atp8b1 C T 18: 64,714,994 (GRCm39) C86Y probably damaging Het
Bltp1 A T 3: 36,971,826 (GRCm39) T520S probably benign Het
Btbd10 T C 7: 112,931,931 (GRCm39) K165R probably damaging Het
Capn11 C T 17: 45,950,600 (GRCm39) R293Q possibly damaging Het
Chordc1 T G 9: 18,206,628 (GRCm39) F33V probably damaging Het
Clca4b G A 3: 144,627,624 (GRCm39) T449I probably benign Het
Clip4 A C 17: 72,096,878 (GRCm39) M1L probably damaging Het
Cyfip1 C T 7: 55,523,478 (GRCm39) T90I probably benign Het
Cyp4v3 G T 8: 45,761,572 (GRCm39) T417K possibly damaging Het
Exoc3l4 T C 12: 111,389,851 (GRCm39) I142T probably damaging Het
Flnb T A 14: 7,890,843 (GRCm38) I575N probably benign Het
Foxa1 A T 12: 57,589,081 (GRCm39) S380T probably benign Het
Foxi2 A T 7: 135,012,668 (GRCm39) probably null Het
Gad1-ps A T 10: 99,280,395 (GRCm39) noncoding transcript Het
Gpa33 A G 1: 165,974,360 (GRCm39) T66A possibly damaging Het
Gpr45 A G 1: 43,072,218 (GRCm39) Y287C probably damaging Het
H2-Eb1 C A 17: 34,533,229 (GRCm39) Y150* probably null Het
Hsd17b8 T C 17: 34,245,435 (GRCm39) D233G probably null Het
Ifna6 A T 4: 88,745,906 (GRCm39) Q85L probably damaging Het
Ivns1abp G T 1: 151,229,760 (GRCm39) L149F probably benign Het
Kank4 A G 4: 98,653,698 (GRCm39) probably null Het
Katnip T A 7: 125,442,627 (GRCm39) probably null Het
Lama2 A T 10: 27,066,540 (GRCm39) C1114S probably damaging Het
Lmbr1l A C 15: 98,805,489 (GRCm39) D337E possibly damaging Het
Lrrn3 A C 12: 41,502,297 (GRCm39) S673R possibly damaging Het
Ly75 T C 2: 60,138,655 (GRCm39) D1404G probably damaging Het
Muc4 A G 16: 32,575,011 (GRCm39) T1199A probably benign Het
Mycn A T 12: 12,990,045 (GRCm39) M117K possibly damaging Het
Nalcn A G 14: 123,532,818 (GRCm39) I1314T probably damaging Het
Nod1 T C 6: 54,910,561 (GRCm39) T869A probably benign Het
Or2y16 T C 11: 49,335,140 (GRCm39) V154A probably benign Het
Or4k39 C T 2: 111,238,818 (GRCm39) noncoding transcript Het
Plekhg2 A T 7: 28,067,064 (GRCm39) I356N probably damaging Het
Ptpru T A 4: 131,547,501 (GRCm39) Y112F possibly damaging Het
Rpl36al G A 12: 69,229,897 (GRCm39) P5L possibly damaging Het
Ryr2 A G 13: 11,774,722 (GRCm39) W1145R probably damaging Het
Semp2l2b T A 10: 21,942,742 (GRCm39) T413S possibly damaging Het
Slc11a2 A G 15: 100,301,169 (GRCm39) Y295H probably damaging Het
Slc22a6 A G 19: 8,599,148 (GRCm39) probably null Het
Styxl1 A G 5: 135,785,977 (GRCm39) probably null Het
Tmc6 A G 11: 117,666,441 (GRCm39) S288P possibly damaging Het
Trpv4 A G 5: 114,772,617 (GRCm39) L371P probably damaging Het
Uqcc4 G A 17: 25,403,963 (GRCm39) S101N probably damaging Het
Usp8 A G 2: 126,584,345 (GRCm39) D518G probably benign Het
Washc4 T C 10: 83,405,892 (GRCm39) S463P 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
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
R7041:Atxn1 UTSW 13 45,720,311 (GRCm39) missense probably damaging 1.00
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'- CGACTTCTCCAGTTTACGGGTC -3'
(R):5'- ATTTGGACAGGGCTGGTCATC -3'

Sequencing Primer
(F):5'- CTCTTCCTCGTGGCTGTGG -3'
(R):5'- GGTCATCCTGCTGTCCTGAG -3'
Posted On 2016-11-09