Incidental Mutation 'IGL00782:Atxn7'
ID9162
Institutional Source Australian Phenomics Network (link to record)
Gene Symbol Atxn7
Ensembl Gene ENSMUSG00000021738
Gene Nameataxin 7
SynonymsA430107N12Rik, ataxin-7, Sca7
Accession Numbers
Is this an essential gene? Non essential (E-score: 0.000) question?
Stock #IGL00782
Quality Score
Status
Chromosome14
Chromosomal Location13961440-14107302 bp(+) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) A to G at 14096218 bp
ZygosityHeterozygous
Amino Acid Change Isoleucine to Valine at position 508 (I508V)
Ref Sequence ENSEMBL: ENSMUSP00000153613 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000022257] [ENSMUST00000223714] [ENSMUST00000223880]
Predicted Effect probably benign
Transcript: ENSMUST00000022257
AA Change: I508V

PolyPhen 2 Score 0.038 (Sensitivity: 0.94; Specificity: 0.82)
SMART Domains Protein: ENSMUSP00000022257
Gene: ENSMUSG00000021738
AA Change: I508V

DomainStartEndE-ValueType
low complexity region 13 47 N/A INTRINSIC
low complexity region 50 66 N/A INTRINSIC
ZnF_C2H2 135 157 2.47e1 SMART
low complexity region 174 197 N/A INTRINSIC
low complexity region 202 218 N/A INTRINSIC
Pfam:SCA7 313 381 1.4e-30 PFAM
low complexity region 393 413 N/A INTRINSIC
low complexity region 470 484 N/A INTRINSIC
low complexity region 619 647 N/A INTRINSIC
low complexity region 675 713 N/A INTRINSIC
Predicted Effect possibly damaging
Transcript: ENSMUST00000223714
AA Change: I508V

PolyPhen 2 Score 0.781 (Sensitivity: 0.85; Specificity: 0.93)
Predicted Effect probably benign
Transcript: ENSMUST00000223880
AA Change: I508V

PolyPhen 2 Score 0.038 (Sensitivity: 0.94; Specificity: 0.82)
Predicted Effect noncoding transcript
Transcript: ENSMUST00000223932
Predicted Effect unknown
Transcript: ENSMUST00000224315
AA Change: I27V
Coding Region Coverage
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. This locus has been mapped to chromosome 3, and it has been determined that the diseased allele associated with spinocerebellar ataxia-7 contains 37-306 CAG repeats (near the N-terminus), compared to 4-35 in the normal allele. The encoded protein is a component of the SPT3/TAF9/GCN5 acetyltransferase (STAGA) and TBP-free TAF-containing (TFTC) chromatin remodeling complexes, and it thus plays a role in transcriptional regulation. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2016]
PHENOTYPE: Heterozygotes for a targeted mutation with an expanded polyglutamine tract exhibit impaired coordination, ataxia, reduced growth, kyphosis, eye defects, poor reproduction, and high mortality at around 4 months. Homozygotes die at 7-8 weeks of age. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 17 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Acsm2 A T 7: 119,573,168 E78V probably damaging Het
Cecr2 A G 6: 120,761,621 N1075S probably benign Het
Clcn3 A G 8: 60,922,792 I689T probably damaging Het
Cntnap3 T C 13: 64,745,805 probably benign Het
Defb11 T C 8: 21,905,494 I56V probably benign Het
Ercc5 A G 1: 44,163,935 N244S probably damaging Het
Gabrg3 A G 7: 57,381,667 S42P probably damaging Het
Hcrtr2 A T 9: 76,230,497 probably benign Het
Jcad T C 18: 4,675,073 L945S probably benign Het
Lrp2 T C 2: 69,501,645 M1589V probably benign Het
Prkg1 C T 19: 30,578,753 probably benign Het
Samd1 T C 8: 83,999,617 F464S probably damaging Het
Slc35b3 A G 13: 38,943,140 S213P possibly damaging Het
Taar1 A G 10: 23,920,446 N14S probably benign Het
Tinf2 A G 14: 55,680,464 probably null Het
Utrn T C 10: 12,652,811 N2140S probably benign Het
Zfp780b T C 7: 27,964,761 D123G probably benign Het
Other mutations in Atxn7
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00402:Atxn7 APN 14 14096324 splice site probably benign
IGL01405:Atxn7 APN 14 14100105 missense probably benign 0.00
IGL02828:Atxn7 APN 14 14090056 missense probably damaging 1.00
IGL03119:Atxn7 APN 14 14100734 missense probably damaging 1.00
IGL03139:Atxn7 APN 14 14052994 missense probably damaging 0.97
IGL03282:Atxn7 APN 14 14100564 missense probably damaging 0.99
IGL03387:Atxn7 APN 14 14087273 splice site probably benign
Estes_park UTSW 14 14096317 critical splice donor site probably null
Lumpy UTSW 14 14089446 nonsense probably null
Oestes_park UTSW 14 14096268 nonsense probably null
R0034:Atxn7 UTSW 14 14100846 missense probably damaging 0.96
R0408:Atxn7 UTSW 14 14100317 missense probably damaging 1.00
R0853:Atxn7 UTSW 14 14089465 splice site probably benign
R1169:Atxn7 UTSW 14 14095468 missense possibly damaging 0.81
R1678:Atxn7 UTSW 14 14096239 missense probably damaging 1.00
R1802:Atxn7 UTSW 14 14089419 missense probably benign 0.25
R2078:Atxn7 UTSW 14 14052975 missense probably damaging 0.99
R2275:Atxn7 UTSW 14 14013268 missense possibly damaging 0.85
R2394:Atxn7 UTSW 14 14100237 missense probably damaging 1.00
R4118:Atxn7 UTSW 14 14100308 missense probably benign 0.00
R4230:Atxn7 UTSW 14 14100381 missense probably benign 0.00
R4588:Atxn7 UTSW 14 14096268 nonsense probably null
R4688:Atxn7 UTSW 14 14089288 missense probably benign 0.00
R4935:Atxn7 UTSW 14 14100401 missense probably benign
R5041:Atxn7 UTSW 14 14096317 critical splice donor site probably null
R5185:Atxn7 UTSW 14 14090063 missense probably benign 0.04
R5561:Atxn7 UTSW 14 14089260 missense probably benign 0.19
R5641:Atxn7 UTSW 14 14013638 missense probably damaging 0.99
R6490:Atxn7 UTSW 14 14089446 nonsense probably null
R6549:Atxn7 UTSW 14 14013087 missense probably damaging 0.99
R6623:Atxn7 UTSW 14 14099972 missense probably damaging 1.00
R6950:Atxn7 UTSW 14 14095511 missense probably damaging 1.00
R7054:Atxn7 UTSW 14 14100878 missense probably benign 0.08
R7402:Atxn7 UTSW 14 14095427 missense probably damaging 0.98
R7762:Atxn7 UTSW 14 14100467 missense probably damaging 1.00
R8432:Atxn7 UTSW 14 14013635 missense probably benign 0.06
Posted On2012-12-06