Incidental Mutation 'R4944:Atxn1'
ID 383366
Institutional Source Beutler Lab
Gene Symbol Atxn1
Ensembl Gene ENSMUSG00000046876
Gene Name ataxin 1
Synonyms Atx1, Sca1, 2900016G23Rik
MMRRC Submission 042541-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R4944 (G1)
Quality Score 225
Status Validated
Chromosome 13
Chromosomal Location 45703231-46118467 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to G at 45720407 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Histidine to Proline at position 496 (H496P)
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: H496P

PolyPhen 2 Score 0.997 (Sensitivity: 0.41; Specificity: 0.98)
SMART Domains Protein: ENSMUSP00000089217
Gene: ENSMUSG00000046876
AA Change: H496P

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: H496P

PolyPhen 2 Score 0.997 (Sensitivity: 0.41; Specificity: 0.98)
SMART Domains Protein: ENSMUSP00000129890
Gene: ENSMUSG00000046876
AA Change: H496P

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: H496P

PolyPhen 2 Score 0.997 (Sensitivity: 0.41; Specificity: 0.98)
SMART Domains Protein: ENSMUSP00000137439
Gene: ENSMUSG00000046876
AA Change: H496P

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 0.3683 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.6%
  • 10x: 97.2%
  • 20x: 94.9%
Validation Efficiency 100% (67/67)
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: 66 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abcb4 G A 5: 8,984,327 (GRCm39) probably null Het
Angptl7 C G 4: 148,584,534 (GRCm39) Q71H probably damaging Het
Arhgap30 A T 1: 171,229,822 (GRCm39) N176Y probably damaging Het
Armc9 T A 1: 86,202,256 (GRCm39) S805T probably damaging Het
Cabin1 C T 10: 75,557,197 (GRCm39) G1147D probably damaging Het
Cabin1 A G 10: 75,575,255 (GRCm39) S597P probably damaging Het
Catsperd T C 17: 56,969,744 (GRCm39) S613P probably damaging Het
Cdh2 A G 18: 16,783,466 (GRCm39) Y88H probably damaging Het
Cntn1 C A 15: 92,126,549 (GRCm39) P47Q probably damaging Het
Col11a2 T C 17: 34,261,164 (GRCm39) L38P possibly damaging Het
Col5a2 T G 1: 45,415,855 (GRCm39) I1431L possibly damaging Het
Csmd1 C T 8: 16,048,772 (GRCm39) G2310D probably damaging Het
Dhcr7 T A 7: 143,391,528 (GRCm39) I39N probably damaging Het
Dnajc13 C T 9: 104,044,586 (GRCm39) probably benign Het
Drgx G T 14: 32,330,206 (GRCm39) Q136H probably damaging Het
Folr2 T C 7: 101,489,497 (GRCm39) probably null Het
Galnt11 T C 5: 25,470,336 (GRCm39) I595T probably damaging Het
Gp5 G A 16: 30,128,326 (GRCm39) A116V possibly damaging Het
Gpn3 T C 5: 122,520,303 (GRCm39) probably benign Het
Gprin3 T C 6: 59,331,644 (GRCm39) N221S probably benign Het
Hfm1 T C 5: 107,022,079 (GRCm39) E989G possibly damaging Het
Ints1 T C 5: 139,743,847 (GRCm39) probably null Het
Josd2 T C 7: 44,120,592 (GRCm39) S110P probably damaging Het
Kat14 C A 2: 144,217,873 (GRCm39) T123K probably damaging Het
Lamtor1 C T 7: 101,558,971 (GRCm39) T48I probably damaging Het
Lrrc24 A G 15: 76,602,546 (GRCm39) L113P probably damaging Het
Lrrc37 T C 11: 103,504,286 (GRCm39) T2561A possibly damaging Het
Mog T C 17: 37,331,433 (GRCm39) E89G probably damaging Het
Mon2 A G 10: 122,874,364 (GRCm39) probably null Het
Mtx1 T C 3: 89,121,205 (GRCm39) Y143C probably benign Het
Nacad T C 11: 6,548,507 (GRCm39) E1409G possibly damaging Het
Ndst3 T C 3: 123,400,676 (GRCm39) H410R probably damaging Het
Nkx6-2 T C 7: 139,161,486 (GRCm39) E233G possibly damaging Het
Oas1h A G 5: 121,000,846 (GRCm39) E152G probably damaging Het
Or8g22 A G 9: 38,958,158 (GRCm39) S186P probably damaging Het
Ovgp1 T C 3: 105,887,269 (GRCm39) F222L possibly damaging Het
Pkhd1 T C 1: 20,358,429 (GRCm39) S2716G probably null Het
Pla2g4e T C 2: 120,001,718 (GRCm39) T644A probably benign Het
Plxnd1 A G 6: 115,932,726 (GRCm39) I1918T probably damaging Het
Psmg1 A T 16: 95,790,812 (GRCm39) probably benign Het
Ptprd G A 4: 76,047,136 (GRCm39) R364C probably damaging Het
Rgs22 T C 15: 36,026,088 (GRCm39) I945V possibly damaging Het
Rgs7bp T C 13: 105,088,072 (GRCm39) N234S probably benign Het
Rrp7a T C 15: 83,004,010 (GRCm39) probably benign Het
Scg2 T A 1: 79,414,193 (GRCm39) R177* probably null Het
Sema4c C A 1: 36,589,392 (GRCm39) C578F probably damaging Het
Slc1a5 T A 7: 16,531,668 (GRCm39) probably benign Het
Slc5a3 A G 16: 91,875,571 (GRCm39) T543A possibly damaging Het
Slx4ip T A 2: 136,888,687 (GRCm39) F123I probably benign Het
Smtn C T 11: 3,472,916 (GRCm39) R737H probably damaging Het
Stox2 A G 8: 47,866,300 (GRCm39) I14T possibly damaging Het
Stradb T C 1: 59,019,599 (GRCm39) F43L probably benign Het
Szt2 T C 4: 118,245,866 (GRCm39) D1029G probably benign Het
Taar6 T C 10: 23,860,613 (GRCm39) Y311C probably damaging Het
Tcea3 A T 4: 135,995,404 (GRCm39) N249I probably damaging Het
Tecta A G 9: 42,241,573 (GRCm39) M2134T probably benign Het
Tg G A 15: 66,636,186 (GRCm39) G591D probably damaging Het
Tm4sf20 T A 1: 82,746,084 (GRCm39) I19F probably benign Het
Top2a T C 11: 98,888,676 (GRCm39) K1262E probably benign Het
Ube2r2 A G 4: 41,190,742 (GRCm39) probably benign Het
Usp29 T C 7: 6,964,927 (GRCm39) S257P possibly damaging Het
Usp40 T C 1: 87,880,077 (GRCm39) N1038S probably benign Het
Utp25 A T 1: 192,797,262 (GRCm39) M530K probably damaging Het
Vmn1r121 C T 7: 20,831,538 (GRCm39) E301K probably benign Het
Vmn2r49 T A 7: 9,722,959 (GRCm39) H105L probably benign Het
Zgrf1 C T 3: 127,355,517 (GRCm39) Q248* probably null 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
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'- CATGAAATATGGCGGCAGC -3'
(R):5'- ACACAGTGCATCAGAGCCTC -3'

Sequencing Primer
(F):5'- ATATGGCGGCAGCGTGGG -3'
(R):5'- CCTGTCATCGGCTACCTGAG -3'
Posted On 2016-04-27