Incidental Mutation 'R1863:Sptbn2'
ID 204173
Institutional Source Beutler Lab
Gene Symbol Sptbn2
Ensembl Gene ENSMUSG00000067889
Gene Name spectrin beta, non-erythrocytic 2
Synonyms Spnb3
MMRRC Submission 039886-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R1863 (G1)
Quality Score 225
Status Not validated
Chromosome 19
Chromosomal Location 4761195-4802388 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 4782713 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Methionine to Valine at position 550 (M550V)
Ref Sequence ENSEMBL: ENSMUSP00000008991 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000008991]
AlphaFold Q68FG2
Predicted Effect possibly damaging
Transcript: ENSMUST00000008991
AA Change: M550V

PolyPhen 2 Score 0.535 (Sensitivity: 0.88; Specificity: 0.90)
SMART Domains Protein: ENSMUSP00000008991
Gene: ENSMUSG00000067889
AA Change: M550V

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
Coding Region Coverage
  • 1x: 97.5%
  • 3x: 96.9%
  • 10x: 95.0%
  • 20x: 90.8%
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: 85 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
A2ml1 A T 6: 128,527,746 (GRCm39) S1015T probably damaging Het
Adamts10 T A 17: 33,770,406 (GRCm39) probably null Het
Adgrv1 G A 13: 81,711,685 (GRCm39) T1097I probably damaging Het
Apeh T C 9: 107,969,302 (GRCm39) Y274C possibly damaging Het
Apobec3 A G 15: 79,782,068 (GRCm39) D26G possibly damaging Het
Arg2 C T 12: 79,196,794 (GRCm39) Q172* probably null Het
Asb18 C T 1: 89,942,104 (GRCm39) V66I probably benign Het
Cacna1i G A 15: 80,243,132 (GRCm39) G430S probably damaging Het
Cadps A G 14: 12,449,802 (GRCm38) S1136P possibly damaging Het
Cadps A G 14: 12,505,796 (GRCm38) V758A probably benign Het
Calhm3 A G 19: 47,140,539 (GRCm39) W185R probably damaging Het
Car5b T C X: 162,774,369 (GRCm39) D146G probably damaging Het
Card10 G A 15: 78,664,714 (GRCm39) R747W probably damaging Het
Cd300lg T G 11: 101,932,430 (GRCm39) V5G probably damaging Het
Cd46 C A 1: 194,765,931 (GRCm39) G145C probably damaging Het
Chit1 T C 1: 134,078,988 (GRCm39) S433P probably damaging Het
Cntrl G A 2: 35,008,131 (GRCm39) E182K possibly damaging Het
Col6a5 T A 9: 105,817,400 (GRCm39) M304L unknown Het
Cplane1 A G 15: 8,258,077 (GRCm39) I2108V probably benign Het
Cpxm2 C T 7: 131,745,392 (GRCm39) probably null Het
Dbf4 G A 5: 8,447,375 (GRCm39) Q612* probably null Het
Dnah11 G C 12: 118,027,587 (GRCm39) Q1835E possibly damaging Het
Ehbp1l1 A T 19: 5,767,882 (GRCm39) N1140K probably benign Het
Eps8l1 C A 7: 4,468,359 (GRCm39) probably benign Het
Fbxl21 A T 13: 56,674,876 (GRCm39) I76L probably benign Het
Gcnt2 A T 13: 41,014,577 (GRCm39) K249N possibly damaging Het
Gm5819 A G 18: 8,694,179 (GRCm39) T35A probably benign Het
Gm8180 T C 14: 44,021,139 (GRCm39) E23G probably benign Het
Gorab A G 1: 163,231,131 (GRCm39) F8L probably damaging Het
Hlf A G 11: 90,231,652 (GRCm39) L274S probably damaging Het
Il15ra T A 2: 11,728,247 (GRCm39) S137T possibly damaging Het
Krt78 A T 15: 101,855,004 (GRCm39) C936S possibly damaging Het
Lamb2 T C 9: 108,358,583 (GRCm39) S207P probably benign Het
Lce1a1 T C 3: 92,554,118 (GRCm39) S119G unknown Het
Lipo3 A G 19: 33,762,092 (GRCm39) F135S probably damaging Het
Lrp4 T A 2: 91,328,708 (GRCm39) L1536Q probably benign Het
Lrrc25 T C 8: 71,070,596 (GRCm39) S126P possibly damaging Het
Mbd3l2 T C 9: 18,356,217 (GRCm39) S181P possibly damaging Het
Msantd5f6 A T 4: 73,320,037 (GRCm39) Y247* probably null Het
Mss51 C T 14: 20,534,936 (GRCm39) R278H probably damaging Het
Myom3 G A 4: 135,505,348 (GRCm39) M412I probably benign Het
Naa25 T C 5: 121,573,611 (GRCm39) V780A probably benign Het
Naip6 A T 13: 100,437,067 (GRCm39) F485L probably benign Het
Notch1 T C 2: 26,359,962 (GRCm39) Y1251C probably damaging Het
Npas3 A G 12: 54,115,609 (GRCm39) N826D probably damaging Het
Nup155 A T 15: 8,187,244 (GRCm39) H1391L probably damaging Het
Or2t47 T C 11: 58,442,849 (GRCm39) Y72C probably benign Het
Or4a74 A T 2: 89,440,053 (GRCm39) L131* probably null Het
Or4c35 A T 2: 89,808,754 (GRCm39) I211F probably benign Het
Or5p57 A C 7: 107,665,932 (GRCm39) Y24* probably null Het
Or6c66 T C 10: 129,461,217 (GRCm39) T238A probably damaging Het
Or8c8 T G 9: 38,165,016 (GRCm39) M101R probably damaging Het
Or8s16 G T 15: 98,211,372 (GRCm39) Q20K probably benign Het
Osbpl6 G A 2: 76,415,402 (GRCm39) R588H probably damaging Het
Pcdhb17 A T 18: 37,619,164 (GRCm39) D318V probably benign Het
Pcnx2 T A 8: 126,545,525 (GRCm39) E1162V probably damaging Het
Pde2a G A 7: 101,160,361 (GRCm39) R845H probably damaging Het
Pkhd1 G T 1: 20,621,244 (GRCm39) R805S probably benign Het
Ppl T C 16: 4,905,844 (GRCm39) K1484E possibly damaging Het
Pramel7 T C 2: 87,321,675 (GRCm39) E120G probably benign Het
Prg4 T A 1: 150,336,420 (GRCm39) D60V probably damaging Het
Prpf6 T A 2: 181,249,967 (GRCm39) D42E possibly damaging Het
Rbm5 C T 9: 107,627,718 (GRCm39) V408I possibly damaging Het
Rsrp1 G T 4: 134,651,388 (GRCm39) D51Y unknown Het
Sec22a A G 16: 35,168,088 (GRCm39) M141T probably damaging Het
Spryd3 A G 15: 102,026,094 (GRCm39) S417P probably benign Het
Sugt1 C T 14: 79,846,434 (GRCm39) T157I probably damaging Het
Syne4 T C 7: 30,016,308 (GRCm39) V168A probably benign Het
Tas2r122 A T 6: 132,688,065 (GRCm39) L276* probably null Het
Tbc1d14 G A 5: 36,665,037 (GRCm39) S231F probably damaging Het
Tenm3 T A 8: 48,729,381 (GRCm39) I1526F probably benign Het
Tgm2 C T 2: 157,966,139 (GRCm39) C505Y probably damaging Het
Thop1 T C 10: 80,909,151 (GRCm39) Y61H probably damaging Het
Ticam1 G A 17: 56,578,436 (GRCm39) H220Y probably damaging Het
Tle6 T C 10: 81,427,755 (GRCm39) D500G possibly damaging Het
Tm6sf2 T A 8: 70,532,375 (GRCm39) L345Q probably damaging Het
Tnxb T C 17: 34,889,848 (GRCm39) C114R probably damaging Het
Topors G T 4: 40,262,149 (GRCm39) C378* probably null Het
Ttc6 G A 12: 57,760,881 (GRCm39) G1544R probably benign Het
Vmn2r4 A T 3: 64,314,410 (GRCm39) N190K probably benign Het
Wdr70 C A 15: 7,950,054 (GRCm39) V447F probably benign Het
Xpa A G 4: 46,155,730 (GRCm39) probably benign Het
Xrcc1 T C 7: 24,270,000 (GRCm39) S474P possibly damaging Het
Zfp658 T G 7: 43,223,323 (GRCm39) F533V possibly damaging Het
Zfp799 G A 17: 33,038,374 (GRCm39) H631Y probably damaging 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
R0457:Sptbn2 UTSW 19 4,795,966 (GRCm39) missense possibly damaging 0.89
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
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'- CTGCTGAGCACTACCATGAC -3'
(R):5'- AGACTTCTCTCAGAAAGGCCTTG -3'

Sequencing Primer
(F):5'- TGCTGAGCACTACCATGACATTAAG -3'
(R):5'- TGCAGGCCTTAGAAGCAC -3'
Posted On 2014-06-23