Incidental Mutation 'R1532:Atxn1'
ID 166685
Institutional Source Beutler Lab
Gene Symbol Atxn1
Ensembl Gene ENSMUSG00000046876
Gene Name ataxin 1
Synonyms Atx1, Sca1, 2900016G23Rik
MMRRC Submission 039571-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R1532 (G1)
Quality Score 224
Status Not validated
Chromosome 13
Chromosomal Location 45703231-46118467 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to T at 45720386 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Leucine to Glutamine at position 503 (L503Q)
Ref Sequence ENSEMBL: ENSMUSP00000137439 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000091628] [ENSMUST00000167708] [ENSMUST00000180110]
AlphaFold P54254
Predicted Effect possibly damaging
Transcript: ENSMUST00000091628
AA Change: L503Q

PolyPhen 2 Score 0.954 (Sensitivity: 0.79; Specificity: 0.95)
SMART Domains Protein: ENSMUSP00000089217
Gene: ENSMUSG00000046876
AA Change: L503Q

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 possibly damaging
Transcript: ENSMUST00000167708
AA Change: L503Q

PolyPhen 2 Score 0.954 (Sensitivity: 0.79; Specificity: 0.95)
SMART Domains Protein: ENSMUSP00000129890
Gene: ENSMUSG00000046876
AA Change: L503Q

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 possibly damaging
Transcript: ENSMUST00000180110
AA Change: L503Q

PolyPhen 2 Score 0.954 (Sensitivity: 0.79; Specificity: 0.95)
SMART Domains Protein: ENSMUSP00000137439
Gene: ENSMUSG00000046876
AA Change: L503Q

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
Coding Region Coverage
  • 1x: 99.1%
  • 3x: 98.2%
  • 10x: 96.0%
  • 20x: 91.9%
Validation Efficiency
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: 74 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adamtsl1 C A 4: 86,166,302 (GRCm39) H394N probably benign Het
Ahrr A G 13: 74,361,826 (GRCm39) S558P probably benign Het
Ankrd26 T C 6: 118,499,919 (GRCm39) N1184S probably damaging Het
Anpep A T 7: 79,476,696 (GRCm39) C14* probably null Het
Arhgap18 A G 10: 26,736,718 (GRCm39) D187G possibly damaging Het
Arhgef5 A G 6: 43,250,337 (GRCm39) T363A probably benign Het
Babam1 A G 8: 71,852,277 (GRCm39) D155G possibly damaging Het
Bbs9 A G 9: 22,798,945 (GRCm39) T858A probably benign Het
Cacna1g C A 11: 94,334,157 (GRCm39) G828V probably damaging Het
Ccar2 T C 14: 70,380,405 (GRCm39) T392A probably benign Het
Cd163 T C 6: 124,289,689 (GRCm39) V469A possibly damaging Het
Cdh23 G T 10: 60,150,110 (GRCm39) N2576K probably damaging Het
Coro2b A G 9: 62,396,705 (GRCm39) Y18H probably damaging Het
Crispld2 G T 8: 120,750,311 (GRCm39) K238N probably benign Het
Ctnnd2 T C 15: 30,922,014 (GRCm39) I880T probably damaging Het
Cubn C A 2: 13,292,472 (GRCm39) C3237F probably damaging Het
Ddx31 A G 2: 28,771,171 (GRCm39) M519V probably benign Het
Dhx32 A T 7: 133,350,753 (GRCm39) C106S possibly damaging Het
Diaph1 A G 18: 38,029,146 (GRCm39) probably null Het
Dnaaf1 T C 8: 120,304,162 (GRCm39) F67L probably benign Het
Duox1 T G 2: 122,175,204 (GRCm39) L1334R probably damaging Het
Dync1li2 A T 8: 105,152,667 (GRCm39) I322N probably damaging Het
Eml6 T C 11: 29,742,256 (GRCm39) probably null Het
Entpd6 A G 2: 150,600,670 (GRCm39) Q126R probably benign Het
Entpd7 C G 19: 43,679,516 (GRCm39) P23R possibly damaging Het
Epha3 T C 16: 63,366,541 (GRCm39) I970V probably benign Het
Fras1 A T 5: 96,861,855 (GRCm39) H2163L probably damaging Het
Gse1 C G 8: 121,294,949 (GRCm39) probably benign Het
Heatr5a A G 12: 51,999,301 (GRCm39) V300A probably damaging Het
Hsd3b1 T A 3: 98,760,214 (GRCm39) D259V probably damaging Het
Hspbap1 T C 16: 35,645,673 (GRCm39) S453P probably damaging Het
Ifnl3 A G 7: 28,223,652 (GRCm39) T163A probably benign Het
Igbp1b T A 6: 138,635,442 (GRCm39) M1L possibly damaging Het
Klra3 G C 6: 130,310,107 (GRCm39) R138G probably benign Het
Lpxn T C 19: 12,781,456 (GRCm39) probably null Het
Mast1 G A 8: 85,655,238 (GRCm39) Q249* probably null Het
Mink1 A G 11: 70,492,833 (GRCm39) D153G probably null Het
Mllt10 G A 2: 18,097,646 (GRCm39) probably null Het
Mpl C T 4: 118,305,765 (GRCm39) G420E possibly damaging Het
Ms4a1 T A 19: 11,230,557 (GRCm39) T215S probably benign Het
Ncapd3 C T 9: 26,994,656 (GRCm39) Q1179* probably null Het
Nr3c2 A G 8: 77,635,733 (GRCm39) H278R probably damaging Het
Or10v5 T C 19: 11,805,983 (GRCm39) I136V probably benign Het
Or52e18 T C 7: 104,609,472 (GRCm39) I156V probably benign Het
Or5b102 A G 19: 13,041,639 (GRCm39) Y288C probably damaging Het
Os9 C T 10: 126,934,771 (GRCm39) V353M probably damaging Het
Osbpl5 A T 7: 143,248,817 (GRCm39) M589K probably benign Het
Phf20 G T 2: 156,144,969 (GRCm39) G859V possibly damaging Het
Pkhd1 G A 1: 20,187,625 (GRCm39) T3561I probably benign Het
Prss46 G A 9: 110,679,236 (GRCm39) V146I probably benign Het
Ptprk G A 10: 28,461,626 (GRCm39) V1139M probably damaging Het
Ranbp10 A G 8: 106,500,963 (GRCm39) L396P probably benign Het
Rb1cc1 A G 1: 6,319,958 (GRCm39) T1126A probably benign Het
Rbl2 G A 8: 91,833,045 (GRCm39) A659T probably benign Het
Rdm1 T C 11: 101,524,643 (GRCm39) L192P probably damaging Het
Reln A C 5: 22,239,742 (GRCm39) W842G probably damaging Het
Scn5a C T 9: 119,362,913 (GRCm39) R569H probably damaging Het
Sele A G 1: 163,881,420 (GRCm39) K509R probably benign Het
Slc15a1 A T 14: 121,713,396 (GRCm39) I377N possibly damaging Het
Slc17a3 G A 13: 24,040,483 (GRCm39) G269D probably damaging Het
Slc35a5 T C 16: 44,971,920 (GRCm39) T115A probably benign Het
Slc5a12 T G 2: 110,440,483 (GRCm39) N157K possibly damaging Het
Sphkap A G 1: 83,234,924 (GRCm39) V1634A probably damaging Het
Spta1 T C 1: 174,074,919 (GRCm39) S2382P probably damaging Het
Synj2 C A 17: 6,084,194 (GRCm39) S1100R probably benign Het
Tcf23 A G 5: 31,130,901 (GRCm39) T180A probably benign Het
Tnxb T C 17: 34,929,804 (GRCm39) V2846A probably damaging Het
Tpr T A 1: 150,293,751 (GRCm39) I915K probably damaging Het
Uba1y C T Y: 828,862 (GRCm39) H557Y probably benign Het
Unc45b T A 11: 82,827,700 (GRCm39) D730E probably benign Het
Unc5b A T 10: 60,605,011 (GRCm39) L734Q probably damaging Het
Vmn1r167 G T 7: 23,204,204 (GRCm39) H271N probably benign Het
Vmn2r76 A G 7: 85,879,454 (GRCm39) V282A probably benign Het
Xirp2 A G 2: 67,344,283 (GRCm39) K2175E probably benign 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
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
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'- CACCATGCCAGGAGATGATAGAACG -3'
(R):5'- AAGCAATCACCTATGCTGGTGGTC -3'

Sequencing Primer
(F):5'- GGATGAAATCCTCCGTCTTCAGG -3'
(R):5'- ACCTGGTGATCCCAGGTAAC -3'
Posted On 2014-04-13