Incidental Mutation 'R5294:Sptbn2'
ID 405337
Institutional Source Beutler Lab
Gene Symbol Sptbn2
Ensembl Gene ENSMUSG00000067889
Gene Name spectrin beta, non-erythrocytic 2
Synonyms Spnb3
MMRRC Submission 042877-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R5294 (G1)
Quality Score 225
Status Validated
Chromosome 19
Chromosomal Location 4761195-4802388 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 4768936 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Asparagine to Serine at position 23 (N23S)
Ref Sequence ENSEMBL: ENSMUSP00000008991 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000008991]
AlphaFold Q68FG2
Predicted Effect possibly damaging
Transcript: ENSMUST00000008991
AA Change: N23S

PolyPhen 2 Score 0.669 (Sensitivity: 0.86; Specificity: 0.91)
SMART Domains Protein: ENSMUSP00000008991
Gene: ENSMUSG00000067889
AA Change: N23S

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
Meta Mutation Damage Score 0.1018 question?
Coding Region Coverage
  • 1x: 99.3%
  • 3x: 98.7%
  • 10x: 97.5%
  • 20x: 96.0%
Validation Efficiency 97% (70/72)
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
4930579C12Rik T C 9: 89,034,056 (GRCm39) noncoding transcript Het
Acaca A G 11: 84,282,345 (GRCm39) E2154G probably benign Het
Acacb T C 5: 114,380,013 (GRCm39) F2056L probably damaging Het
Aff1 A G 5: 103,959,023 (GRCm39) probably benign Het
Amn1 T A 6: 149,086,622 (GRCm39) probably benign Het
Arid1a C A 4: 133,418,366 (GRCm39) probably benign Het
Aste1 T A 9: 105,279,904 (GRCm39) probably null Het
Asxl3 T A 18: 22,649,496 (GRCm39) V495D possibly damaging Het
Atp1a3 T A 7: 24,687,473 (GRCm39) H688L probably damaging Het
B3gnt8 T C 7: 25,328,191 (GRCm39) L207P probably damaging Het
Baz2b T C 2: 59,808,946 (GRCm39) H101R probably benign Het
Bicc1 G A 10: 70,783,730 (GRCm39) T387M possibly damaging Het
Champ1 A C 8: 13,928,981 (GRCm39) K380Q probably damaging Het
Cnst A G 1: 179,438,005 (GRCm39) E523G probably benign Het
Cops6 G C 5: 138,159,378 (GRCm39) probably benign Het
Cp G C 3: 20,020,480 (GRCm39) V158L probably benign Het
Cyfip1 T A 7: 55,523,231 (GRCm39) M52K possibly damaging Het
Dars1 A T 1: 128,292,039 (GRCm39) F480I probably benign Het
Diaph1 C A 18: 38,030,603 (GRCm39) E284* probably null Het
Diaph1 T C 18: 38,030,633 (GRCm39) M274V unknown Het
Dock8 G A 19: 25,038,517 (GRCm39) V68M probably benign Het
Elavl4 A G 4: 110,068,627 (GRCm39) F247L possibly damaging Het
Emc10 C T 7: 44,145,863 (GRCm39) probably benign Het
Fbxw16 T C 9: 109,265,712 (GRCm39) D369G probably benign Het
Fgr A T 4: 132,724,811 (GRCm39) D304V probably benign Het
Filip1l G A 16: 57,390,399 (GRCm39) S91N possibly damaging Het
Haus8 A G 8: 71,708,354 (GRCm39) S103P unknown Het
Hscb A G 5: 110,982,658 (GRCm39) L143P probably damaging Het
Hsd11b2 A T 8: 106,249,929 (GRCm39) M347L probably benign Het
Jrk C A 15: 74,579,185 (GRCm39) E33D possibly damaging Het
Kbtbd8 T A 6: 95,098,813 (GRCm39) Y123* probably null Het
Lrrc37 A G 11: 103,507,057 (GRCm39) probably benign Het
Mis18bp1 A C 12: 65,203,817 (GRCm39) M59R probably damaging Het
Mrps27 T C 13: 99,546,381 (GRCm39) V260A probably damaging Het
Ncapg2 G T 12: 116,391,414 (GRCm39) V488L possibly damaging Het
Nepn A T 10: 52,276,896 (GRCm39) N211Y probably benign Het
Ntrk3 A T 7: 78,167,254 (GRCm39) probably null Het
Or10x4 A T 1: 174,218,791 (GRCm39) Y52F probably benign Het
Or11h23 A G 14: 50,947,900 (GRCm39) T38A possibly damaging Het
Or11h23 A G 14: 50,948,236 (GRCm39) I150V probably benign Het
Or52w1 C T 7: 105,017,620 (GRCm39) T20I probably benign Het
Otud4 A T 8: 80,399,521 (GRCm39) Q744L possibly damaging Het
P2ry14 A T 3: 59,022,989 (GRCm39) I166N possibly damaging Het
Pak2 T A 16: 31,840,648 (GRCm39) N478Y probably damaging Het
Papss2 A G 19: 32,616,400 (GRCm39) D202G probably benign Het
Pcdh7 C A 5: 57,885,453 (GRCm39) probably null Het
Peg3 C A 7: 6,720,848 (GRCm39) S19I possibly damaging Het
Prim2 G T 1: 33,707,974 (GRCm39) T40K probably benign Het
Ranbp2 T C 10: 58,314,490 (GRCm39) F1737L probably benign Het
Rex2 A C 4: 147,142,442 (GRCm39) N310T probably benign Het
Rnf123 AT ATT 9: 107,941,202 (GRCm39) probably null Het
Rnf39 C T 17: 37,258,092 (GRCm39) A86V probably damaging Het
Ror1 A T 4: 100,283,135 (GRCm39) N400I probably benign Het
Slc38a8 C T 8: 120,221,028 (GRCm39) G177D probably damaging Het
Slc43a3 T C 2: 84,786,654 (GRCm39) V445A probably benign Het
Taf5l A G 8: 124,734,957 (GRCm39) F74L probably benign Het
Trappc11 G C 8: 47,983,766 (GRCm39) A42G possibly damaging Het
Trim30d T C 7: 104,121,695 (GRCm39) K350R probably damaging Het
Trnt1 T C 6: 106,750,375 (GRCm39) F93S probably damaging Het
Ube2c T C 2: 164,619,110 (GRCm39) V161A probably benign Het
Usp24 A G 4: 106,219,554 (GRCm39) E555G possibly damaging Het
Vmn2r55 T G 7: 12,385,791 (GRCm39) S730R probably damaging Het
Vmn2r89 T A 14: 51,692,570 (GRCm39) N124K probably benign Het
Vmn2r98 T A 17: 19,290,016 (GRCm39) C517* probably null Het
Vps13a A T 19: 16,619,031 (GRCm39) I2845N probably damaging Het
Vps51 T G 19: 6,121,063 (GRCm39) E283D probably benign Het
Xpo5 T C 17: 46,547,848 (GRCm39) V896A probably benign Het
Zfp2 T C 11: 50,792,068 (GRCm39) probably benign Het
Zgrf1 G A 3: 127,394,629 (GRCm39) M1328I probably benign Het
Zswim5 A G 4: 116,836,774 (GRCm39) D686G possibly 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
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
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'- AACCTCTGGCTCCAGCAAAG -3'
(R):5'- AGAGACCGAGGCAAGTCTTC -3'

Sequencing Primer
(F):5'- TGGTCTACAAGGCAAGTTCC -3'
(R):5'- TCTTCCCATAAAGACAGAGGATTCTC -3'
Posted On 2016-07-22