Incidental Mutation 'R0457:Sptbn2'
ID 41266
Institutional Source Beutler Lab
Gene Symbol Sptbn2
Ensembl Gene ENSMUSG00000067889
Gene Name spectrin beta, non-erythrocytic 2
Synonyms Spnb3
MMRRC Submission 038657-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R0457 (G1)
Quality Score 225
Status Not validated
Chromosome 19
Chromosomal Location 4761195-4802388 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 4795966 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Valine to Alanine at position 1715 (V1715A)
Ref Sequence ENSEMBL: ENSMUSP00000008991 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000008991] [ENSMUST00000178353]
AlphaFold Q68FG2
Predicted Effect possibly damaging
Transcript: ENSMUST00000008991
AA Change: V1715A

PolyPhen 2 Score 0.888 (Sensitivity: 0.82; Specificity: 0.94)
SMART Domains Protein: ENSMUSP00000008991
Gene: ENSMUSG00000067889
AA Change: V1715A

DomainStartEndE-ValueType
CH 59 159 1.86e-28 SMART
CH 178 276 2.86e-20 SMART
SPEC 308 414 4.63e-1 SMART
SPEC 428 528 3.07e-23 SMART
SPEC 534 638 4.47e-25 SMART
SPEC 644 744 1.28e-25 SMART
SPEC 750 849 4.98e-23 SMART
SPEC 855 955 1.63e-18 SMART
SPEC 961 1062 1.45e-24 SMART
SPEC 1068 1169 4.15e-20 SMART
SPEC 1175 1275 5.26e-22 SMART
SPEC 1281 1380 1.17e-19 SMART
SPEC 1386 1485 2.06e-24 SMART
SPEC 1491 1585 1.74e-22 SMART
SPEC 1591 1691 5.42e-24 SMART
SPEC 1697 1798 2.1e-21 SMART
SPEC 1804 1904 5.47e-20 SMART
SPEC 1910 2010 1.99e-22 SMART
SPEC 2016 2256 2.92e-6 SMART
PH 2219 2330 1.65e-14 SMART
low complexity region 2373 2386 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000178353
SMART Domains Protein: ENSMUSP00000136599
Gene: ENSMUSG00000096370

DomainStartEndE-ValueType
RRM 2 69 1.96e-17 SMART
Pfam:RRM_1 81 118 5.6e-7 PFAM
Coding Region Coverage
  • 1x: 99.1%
  • 3x: 98.4%
  • 10x: 96.4%
  • 20x: 92.9%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] Spectrins are principle components of a cell's membrane-cytoskeleton and are composed of two alpha and two beta spectrin subunits. The protein encoded by this gene (SPTBN2), is called spectrin beta non-erythrocytic 2 or beta-III spectrin. It is related to, but distinct from, the beta-II spectrin gene which is also known as spectrin beta non-erythrocytic 1 (SPTBN1). SPTBN2 regulates the glutamate signaling pathway by stabilizing the glutamate transporter EAAT4 at the surface of the plasma membrane. Mutations in this gene cause a form of spinocerebellar ataxia, SCA5, that is characterized by neurodegeneration, progressive locomotor incoordination, dysarthria, and uncoordinated eye movements. [provided by RefSeq, Dec 2009]
PHENOTYPE: Homozygous hypomorphic mutants exhibit a progressive ataxic phenotype with gait abnormalities, tremor, deteriorating motor coordination, Purkinje cell loss, and cerebellar atrophy (molecular layer thinning) and age-related reduction in simple firing ratein surviving Purkinje cells. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 70 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Aadacl2fm1 A G 3: 59,844,054 (GRCm39) I249M possibly damaging Het
Adcy5 T C 16: 35,094,915 (GRCm39) S691P probably benign Het
Ajm1 G T 2: 25,468,358 (GRCm39) R518S possibly damaging Het
Aspscr1 A G 11: 120,568,444 (GRCm39) E12G probably benign Het
Atp2a2 T C 5: 122,607,777 (GRCm39) Q244R probably benign Het
Birc6 A G 17: 74,959,023 (GRCm39) M3818V probably benign Het
Birc6 C T 17: 74,969,620 (GRCm39) A4230V probably damaging Het
Bub1b T C 2: 118,440,340 (GRCm39) F148S probably damaging Het
C1ra T C 6: 124,499,712 (GRCm39) S633P probably benign Het
Cacna2d1 A G 5: 16,472,414 (GRCm39) T274A probably damaging Het
Cmya5 A G 13: 93,232,095 (GRCm39) W998R possibly damaging Het
Crbn T C 6: 106,758,018 (GRCm39) K404R probably benign Het
Cryga T C 1: 65,142,204 (GRCm39) Y63C probably damaging Het
Csmd1 C A 8: 16,551,407 (GRCm39) probably null Het
Defa-ps1 A T 8: 22,185,758 (GRCm39) noncoding transcript Het
Dnajc10 T A 2: 80,175,290 (GRCm39) V559D possibly damaging Het
Dock1 A T 7: 134,739,874 (GRCm39) E1423D possibly damaging Het
Dpf3 A T 12: 83,319,179 (GRCm39) S44T probably damaging Het
Dyrk3 A T 1: 131,064,094 (GRCm39) V31D possibly damaging Het
F5 T C 1: 164,021,769 (GRCm39) S1415P probably benign Het
Fam186b A C 15: 99,169,166 (GRCm39) I927S probably benign Het
Fcho1 C T 8: 72,165,204 (GRCm39) A418T probably benign Het
Fer1l6 G A 15: 58,509,943 (GRCm39) probably null Het
Fndc7 G T 3: 108,783,861 (GRCm39) S249R probably benign Het
Ganab A G 19: 8,884,614 (GRCm39) E139G possibly damaging Het
Gbp5 A G 3: 142,213,518 (GRCm39) D478G probably damaging Het
Gm17324 T A 9: 78,355,580 (GRCm39) M1K probably null Het
Gtpbp6 T A 5: 110,254,608 (GRCm39) R126S probably damaging Het
Hapln4 G A 8: 70,541,122 (GRCm39) W385* probably null Het
Hmcn2 T A 2: 31,305,296 (GRCm39) probably null Het
Hsp90ab1 A G 17: 45,879,914 (GRCm39) V534A probably damaging Het
Kat6b C A 14: 21,720,598 (GRCm39) T1650K probably damaging Het
Kpna1 T A 16: 35,823,275 (GRCm39) D42E probably benign Het
Lrrc14b A G 13: 74,509,279 (GRCm39) M376T probably benign Het
Lrrc40 A G 3: 157,760,201 (GRCm39) probably null Het
Ltv1 T C 10: 13,067,887 (GRCm39) T34A probably benign Het
Mga T A 2: 119,746,969 (GRCm39) N373K probably damaging Het
Msh3 A T 13: 92,357,505 (GRCm39) M101K probably damaging Het
Mthfd2l T C 5: 91,168,065 (GRCm39) M320T possibly damaging Het
Mug1 G A 6: 121,838,514 (GRCm39) E506K probably benign Het
Ngb T C 12: 87,147,503 (GRCm39) D54G probably damaging Het
Ntrk1 A G 3: 87,699,014 (GRCm39) F84L probably benign Het
Or1j18 A T 2: 36,624,545 (GRCm39) I71F probably benign Het
Or52n2b T A 7: 104,566,180 (GRCm39) T108S probably benign Het
Phf12 T A 11: 77,908,994 (GRCm39) I358N possibly damaging Het
Plec A G 15: 76,061,801 (GRCm39) F2577S probably damaging Het
Polr1c T A 17: 46,558,689 (GRCm39) Y36F probably benign Het
Prkd1 A T 12: 50,413,155 (GRCm39) M672K probably damaging Het
Prob1 T C 18: 35,785,539 (GRCm39) Y905C probably damaging Het
Ptpn23 T A 9: 110,215,361 (GRCm39) H1433L possibly damaging Het
Rnf11 A T 4: 109,314,149 (GRCm39) L80Q probably damaging Het
Sbp G A 17: 24,164,286 (GRCm39) G183D probably benign Het
Scgb2b7 A T 7: 31,403,437 (GRCm39) C90S possibly damaging Het
Slc4a9 T C 18: 36,668,471 (GRCm39) L710P probably damaging Het
Spire1 T A 18: 67,685,670 (GRCm39) I35F probably damaging Het
St7 T C 6: 17,819,281 (GRCm39) F62L probably damaging Het
Svep1 C T 4: 58,118,136 (GRCm39) G862D probably damaging Het
Syne1 A T 10: 4,972,041 (GRCm39) M8789K probably damaging Het
Synpo2 A G 3: 122,906,421 (GRCm39) L965P probably damaging Het
Trhde A T 10: 114,284,167 (GRCm39) M772K probably benign Het
Ttn T A 2: 76,608,851 (GRCm39) K15976* probably null Het
Unc13a A C 8: 72,110,645 (GRCm39) probably null Het
Vcan T C 13: 89,851,318 (GRCm39) E1214G possibly damaging Het
Vmn1r29 T C 6: 58,285,072 (GRCm39) V264A probably benign Het
Vmn1r60 T A 7: 5,548,118 (GRCm39) probably benign Het
Wdr90 C T 17: 26,079,459 (GRCm39) R225H probably benign Het
Wnk1 G A 6: 119,946,293 (GRCm39) T620I probably damaging Het
Zan C T 5: 137,405,968 (GRCm39) probably benign Het
Zfp37 A T 4: 62,109,902 (GRCm39) C387* probably null Het
Zfp521 T C 18: 13,977,897 (GRCm39) T839A probably benign Het
Other mutations in Sptbn2
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00421:Sptbn2 APN 19 4,774,733 (GRCm39) missense possibly damaging 0.94
IGL00688:Sptbn2 APN 19 4,775,966 (GRCm39) missense probably damaging 1.00
IGL01339:Sptbn2 APN 19 4,796,000 (GRCm39) nonsense probably null
IGL01373:Sptbn2 APN 19 4,796,000 (GRCm39) nonsense probably null
IGL01420:Sptbn2 APN 19 4,784,153 (GRCm39) missense probably benign
IGL01456:Sptbn2 APN 19 4,796,777 (GRCm39) missense probably damaging 1.00
IGL01953:Sptbn2 APN 19 4,799,721 (GRCm39) missense probably benign
IGL03026:Sptbn2 APN 19 4,774,261 (GRCm39) critical splice donor site probably null
IGL03275:Sptbn2 APN 19 4,782,689 (GRCm39) missense possibly damaging 0.65
IGL03286:Sptbn2 APN 19 4,797,860 (GRCm39) missense probably damaging 0.97
F5770:Sptbn2 UTSW 19 4,800,660 (GRCm39) missense probably damaging 1.00
PIT4696001:Sptbn2 UTSW 19 4,795,605 (GRCm39) missense probably benign 0.00
R0046:Sptbn2 UTSW 19 4,795,405 (GRCm39) intron probably benign
R0046:Sptbn2 UTSW 19 4,795,405 (GRCm39) intron probably benign
R0121:Sptbn2 UTSW 19 4,795,321 (GRCm39) missense probably damaging 1.00
R0127:Sptbn2 UTSW 19 4,774,772 (GRCm39) missense probably damaging 1.00
R0212:Sptbn2 UTSW 19 4,796,970 (GRCm39) critical splice donor site probably null
R0277:Sptbn2 UTSW 19 4,795,173 (GRCm39) missense probably benign 0.28
R0417:Sptbn2 UTSW 19 4,787,954 (GRCm39) missense probably benign 0.01
R0536:Sptbn2 UTSW 19 4,776,718 (GRCm39) missense probably damaging 0.99
R0631:Sptbn2 UTSW 19 4,790,014 (GRCm39) missense probably benign 0.01
R0734:Sptbn2 UTSW 19 4,798,151 (GRCm39) nonsense probably null
R0742:Sptbn2 UTSW 19 4,769,011 (GRCm39) missense possibly damaging 0.46
R1195:Sptbn2 UTSW 19 4,795,921 (GRCm39) missense possibly damaging 0.85
R1195:Sptbn2 UTSW 19 4,795,921 (GRCm39) missense possibly damaging 0.85
R1195:Sptbn2 UTSW 19 4,795,921 (GRCm39) missense possibly damaging 0.85
R1364:Sptbn2 UTSW 19 4,782,693 (GRCm39) missense probably damaging 1.00
R1495:Sptbn2 UTSW 19 4,769,004 (GRCm39) missense possibly damaging 0.92
R1498:Sptbn2 UTSW 19 4,794,274 (GRCm39) missense possibly damaging 0.94
R1606:Sptbn2 UTSW 19 4,800,270 (GRCm39) critical splice donor site probably null
R1678:Sptbn2 UTSW 19 4,800,525 (GRCm39) missense probably damaging 1.00
R1746:Sptbn2 UTSW 19 4,795,992 (GRCm39) nonsense probably null
R1820:Sptbn2 UTSW 19 4,776,624 (GRCm39) missense probably damaging 0.98
R1830:Sptbn2 UTSW 19 4,782,569 (GRCm39) missense probably benign 0.09
R1863:Sptbn2 UTSW 19 4,782,713 (GRCm39) missense possibly damaging 0.54
R1967:Sptbn2 UTSW 19 4,795,327 (GRCm39) missense probably benign 0.00
R2085:Sptbn2 UTSW 19 4,788,587 (GRCm39) missense probably benign 0.09
R2301:Sptbn2 UTSW 19 4,784,166 (GRCm39) missense probably benign 0.00
R2310:Sptbn2 UTSW 19 4,768,963 (GRCm39) missense probably benign 0.19
R2888:Sptbn2 UTSW 19 4,798,664 (GRCm39) missense possibly damaging 0.52
R3788:Sptbn2 UTSW 19 4,795,950 (GRCm39) missense probably damaging 1.00
R4429:Sptbn2 UTSW 19 4,788,383 (GRCm39) missense probably damaging 1.00
R4536:Sptbn2 UTSW 19 4,782,630 (GRCm39) missense probably damaging 1.00
R4662:Sptbn2 UTSW 19 4,789,267 (GRCm39) missense probably damaging 1.00
R4672:Sptbn2 UTSW 19 4,782,524 (GRCm39) missense probably benign 0.25
R4731:Sptbn2 UTSW 19 4,792,508 (GRCm39) missense probably damaging 0.96
R4747:Sptbn2 UTSW 19 4,798,182 (GRCm39) missense probably benign 0.27
R4889:Sptbn2 UTSW 19 4,779,458 (GRCm39) missense possibly damaging 0.69
R4891:Sptbn2 UTSW 19 4,788,497 (GRCm39) missense probably damaging 1.00
R4965:Sptbn2 UTSW 19 4,779,337 (GRCm39) missense probably benign 0.13
R4968:Sptbn2 UTSW 19 4,779,230 (GRCm39) splice site probably null
R4981:Sptbn2 UTSW 19 4,801,686 (GRCm39) missense probably benign 0.22
R5159:Sptbn2 UTSW 19 4,787,885 (GRCm39) missense probably benign 0.12
R5202:Sptbn2 UTSW 19 4,774,212 (GRCm39) missense probably damaging 1.00
R5253:Sptbn2 UTSW 19 4,800,110 (GRCm39) missense probably benign 0.01
R5294:Sptbn2 UTSW 19 4,768,936 (GRCm39) missense possibly damaging 0.67
R5465:Sptbn2 UTSW 19 4,800,133 (GRCm39) missense probably benign 0.00
R5546:Sptbn2 UTSW 19 4,775,978 (GRCm39) missense probably damaging 1.00
R5593:Sptbn2 UTSW 19 4,798,975 (GRCm39) missense probably damaging 1.00
R5780:Sptbn2 UTSW 19 4,774,695 (GRCm39) missense probably damaging 1.00
R5835:Sptbn2 UTSW 19 4,788,247 (GRCm39) missense probably damaging 1.00
R6008:Sptbn2 UTSW 19 4,789,306 (GRCm39) missense possibly damaging 0.89
R6108:Sptbn2 UTSW 19 4,781,420 (GRCm39) critical splice donor site probably null
R6236:Sptbn2 UTSW 19 4,798,166 (GRCm39) missense probably benign 0.01
R6307:Sptbn2 UTSW 19 4,774,674 (GRCm39) missense probably damaging 1.00
R6383:Sptbn2 UTSW 19 4,782,524 (GRCm39) missense possibly damaging 0.89
R6397:Sptbn2 UTSW 19 4,792,446 (GRCm39) missense possibly damaging 0.91
R6453:Sptbn2 UTSW 19 4,794,208 (GRCm39) missense possibly damaging 0.67
R6561:Sptbn2 UTSW 19 4,797,954 (GRCm39) missense probably benign 0.39
R6564:Sptbn2 UTSW 19 4,782,052 (GRCm39) missense probably damaging 1.00
R6644:Sptbn2 UTSW 19 4,799,040 (GRCm39) missense probably benign 0.05
R6703:Sptbn2 UTSW 19 4,799,843 (GRCm39) missense probably benign
R6703:Sptbn2 UTSW 19 4,799,842 (GRCm39) missense probably benign
R6753:Sptbn2 UTSW 19 4,797,813 (GRCm39) missense probably benign 0.01
R7007:Sptbn2 UTSW 19 4,794,173 (GRCm39) missense possibly damaging 0.82
R7131:Sptbn2 UTSW 19 4,799,488 (GRCm39) missense probably null
R7219:Sptbn2 UTSW 19 4,774,201 (GRCm39) missense probably damaging 1.00
R7285:Sptbn2 UTSW 19 4,787,471 (GRCm39) missense probably benign 0.00
R7308:Sptbn2 UTSW 19 4,801,602 (GRCm39) missense probably benign
R7469:Sptbn2 UTSW 19 4,795,146 (GRCm39) missense probably benign 0.00
R7502:Sptbn2 UTSW 19 4,798,110 (GRCm39) missense probably benign 0.02
R7623:Sptbn2 UTSW 19 4,776,196 (GRCm39) missense probably damaging 1.00
R7635:Sptbn2 UTSW 19 4,794,235 (GRCm39) missense probably damaging 1.00
R7733:Sptbn2 UTSW 19 4,799,040 (GRCm39) missense probably benign 0.05
R7738:Sptbn2 UTSW 19 4,774,153 (GRCm39) missense probably damaging 1.00
R7742:Sptbn2 UTSW 19 4,799,040 (GRCm39) missense probably benign 0.05
R7767:Sptbn2 UTSW 19 4,784,171 (GRCm39) missense possibly damaging 0.62
R7795:Sptbn2 UTSW 19 4,799,040 (GRCm39) missense probably benign 0.05
R7796:Sptbn2 UTSW 19 4,799,040 (GRCm39) missense probably benign 0.05
R7871:Sptbn2 UTSW 19 4,799,040 (GRCm39) missense probably benign 0.05
R7877:Sptbn2 UTSW 19 4,794,290 (GRCm39) missense possibly damaging 0.93
R7920:Sptbn2 UTSW 19 4,799,040 (GRCm39) missense probably benign 0.05
R7921:Sptbn2 UTSW 19 4,799,040 (GRCm39) missense probably benign 0.05
R7923:Sptbn2 UTSW 19 4,796,827 (GRCm39) missense probably benign 0.01
R8137:Sptbn2 UTSW 19 4,787,431 (GRCm39) missense possibly damaging 0.81
R8305:Sptbn2 UTSW 19 4,779,158 (GRCm39) missense possibly damaging 0.81
R8695:Sptbn2 UTSW 19 4,796,724 (GRCm39) missense possibly damaging 0.86
R8790:Sptbn2 UTSW 19 4,782,052 (GRCm39) missense probably damaging 1.00
R9125:Sptbn2 UTSW 19 4,784,241 (GRCm39) missense probably benign 0.04
R9483:Sptbn2 UTSW 19 4,789,974 (GRCm39) missense probably damaging 1.00
R9620:Sptbn2 UTSW 19 4,800,535 (GRCm39) missense probably damaging 0.99
R9631:Sptbn2 UTSW 19 4,788,218 (GRCm39) missense probably damaging 1.00
R9646:Sptbn2 UTSW 19 4,795,341 (GRCm39) missense probably damaging 1.00
R9694:Sptbn2 UTSW 19 4,800,535 (GRCm39) missense probably damaging 0.99
V7580:Sptbn2 UTSW 19 4,800,660 (GRCm39) missense probably damaging 1.00
Z1176:Sptbn2 UTSW 19 4,795,219 (GRCm39) missense probably benign 0.01
Z1176:Sptbn2 UTSW 19 4,788,233 (GRCm39) missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- AGGTGACACAGAGCAAGCCATTC -3'
(R):5'- GGCTAGATTTCTGCACCAGAGGAC -3'

Sequencing Primer
(F):5'- GAGCAAGCCATTCTCTCTACC -3'
(R):5'- GCTCAAAAGTTGTGCAGAACTC -3'
Posted On 2013-05-23