Incidental Mutation 'R0417:Sptbn2'
ID 40442
Institutional Source Beutler Lab
Gene Symbol Sptbn2
Ensembl Gene ENSMUSG00000067889
Gene Name spectrin beta, non-erythrocytic 2
Synonyms Spnb3
MMRRC Submission 038619-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R0417 (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 4787954 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Threonine to Alanine at position 978 (T978A)
Ref Sequence ENSEMBL: ENSMUSP00000008991 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000008991] [ENSMUST00000178353]
AlphaFold Q68FG2
Predicted Effect probably benign
Transcript: ENSMUST00000008991
AA Change: T978A

PolyPhen 2 Score 0.010 (Sensitivity: 0.96; Specificity: 0.77)
SMART Domains Protein: ENSMUSP00000008991
Gene: ENSMUSG00000067889
AA Change: T978A

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: 99.2%
  • 3x: 98.6%
  • 10x: 97.1%
  • 20x: 95.1%
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: 75 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1700030K09Rik A G 8: 73,199,244 (GRCm39) K217R probably damaging Het
1810024B03Rik A G 2: 127,028,864 (GRCm39) Y112H probably damaging Het
Acot2 T C 12: 84,037,387 (GRCm39) Y234H probably benign Het
Alox12e C T 11: 70,212,691 (GRCm39) V53I probably benign Het
Ankrd50 T C 3: 38,510,510 (GRCm39) H619R probably damaging Het
Arfgef3 A T 10: 18,479,259 (GRCm39) L1452Q probably damaging Het
Arhgap42 T C 9: 9,180,034 (GRCm39) S82G possibly damaging Het
Arhgef18 T C 8: 3,438,957 (GRCm39) probably benign Het
Bicra C A 7: 15,706,247 (GRCm39) R1398L probably damaging Het
Boc T C 16: 44,340,597 (GRCm39) T118A probably benign Het
Btnl9 A G 11: 49,066,422 (GRCm39) Y381H probably damaging Het
Cbln3 T G 14: 56,121,586 (GRCm39) E20A probably benign Het
Cdc42ep5 A G 7: 4,154,482 (GRCm39) L102P probably damaging Het
Csrnp3 A G 2: 65,849,887 (GRCm39) Y171C probably benign Het
Cyp2d9 A T 15: 82,340,152 (GRCm39) I181F probably damaging Het
Cyp7b1 T A 3: 18,150,855 (GRCm39) T295S probably damaging Het
Dbn1 C T 13: 55,622,729 (GRCm39) E585K probably damaging Het
Dok1 A T 6: 83,008,550 (GRCm39) D377E probably damaging Het
Eed A T 7: 89,620,760 (GRCm39) Y87* probably null Het
Entpd3 T C 9: 120,386,487 (GRCm39) V156A probably damaging Het
Exo5 T A 4: 120,779,269 (GRCm39) T199S probably damaging Het
Extl2 T C 3: 115,818,006 (GRCm39) I106T probably benign Het
Ezh2 A G 6: 47,528,660 (GRCm39) C291R probably benign Het
Flvcr1 A T 1: 190,743,416 (GRCm39) M466K probably benign Het
Fras1 G T 5: 96,839,231 (GRCm39) M1583I probably benign Het
Fzd9 G T 5: 135,278,473 (GRCm39) R471S probably damaging Het
Galr1 A T 18: 82,423,665 (GRCm39) F204Y probably damaging Het
Gna11 A T 10: 81,366,738 (GRCm39) I324N probably damaging Het
Gucy1a2 A G 9: 3,759,484 (GRCm39) E430G possibly damaging Het
Hhatl C T 9: 121,617,828 (GRCm39) A254T probably benign Het
Ikzf1 A C 11: 11,719,352 (GRCm39) N353T probably benign Het
Il7 T A 3: 7,641,087 (GRCm39) T110S probably damaging Het
Keg1 A G 19: 12,688,424 (GRCm39) N53D probably damaging Het
Klhl21 T C 4: 152,099,964 (GRCm39) I558T probably damaging Het
Lca5l G A 16: 95,963,853 (GRCm39) T357M probably damaging Het
Lrba T C 3: 86,622,961 (GRCm39) S2448P probably damaging Het
Map3k6 T A 4: 132,975,393 (GRCm39) Y709* probably null Het
Megf6 A G 4: 154,352,424 (GRCm39) E1261G probably benign Het
Mettl3 C T 14: 52,534,155 (GRCm39) G473D probably damaging Het
Mga A G 2: 119,733,271 (GRCm39) I40V probably damaging Het
Mmp13 T A 9: 7,276,602 (GRCm39) D232E probably benign Het
Nampt T C 12: 32,883,100 (GRCm39) V95A probably benign Het
Nbeal1 T C 1: 60,286,893 (GRCm39) V905A probably benign Het
Nomo1 A T 7: 45,718,122 (GRCm39) E840V possibly damaging Het
Nprl2 A T 9: 107,420,497 (GRCm39) I101F probably damaging Het
Nup160 A T 2: 90,565,771 (GRCm39) I1378F possibly damaging Het
Ogdhl T C 14: 32,048,936 (GRCm39) S69P probably damaging Het
Or2y17 T A 11: 49,231,500 (GRCm39) I47N possibly damaging Het
Or4a68 C A 2: 89,270,519 (GRCm39) V35L possibly damaging Het
Or4k77 A G 2: 111,199,450 (GRCm39) S158G possibly damaging Het
Or5be3 A T 2: 86,863,789 (GRCm39) Y259N probably damaging Het
Or8b12i G A 9: 20,082,510 (GRCm39) A119V probably damaging Het
Or8c16 A G 9: 38,130,751 (GRCm39) I211V probably benign Het
Or8c8 T C 9: 38,165,160 (GRCm39) F149S probably benign Het
Osbpl3 C T 6: 50,324,998 (GRCm39) V167I probably benign Het
Pclo T A 5: 14,763,036 (GRCm39) H3836Q unknown Het
Prkcg A T 7: 3,352,820 (GRCm39) probably null Het
Ror1 A T 4: 100,269,197 (GRCm39) H345L possibly damaging Het
Slc36a2 C T 11: 55,072,370 (GRCm39) probably null Het
Slc40a1 G A 1: 45,950,534 (GRCm39) P306L possibly damaging Het
Slc9a8 C A 2: 167,299,264 (GRCm39) T239K probably benign Het
Snapc3 A G 4: 83,368,399 (GRCm39) I299V probably benign Het
Sp3 G A 2: 72,801,845 (GRCm39) A56V possibly damaging Het
Spag17 T A 3: 99,972,870 (GRCm39) S1361T probably benign Het
Stom C A 2: 35,211,644 (GRCm39) V126F probably damaging Het
Stpg2 A G 3: 138,924,082 (GRCm39) T162A probably damaging Het
Stxbp6 G A 12: 44,949,740 (GRCm39) T63M probably damaging Het
Tatdn1 A C 15: 58,793,199 (GRCm39) I69S probably benign Het
Tbata A T 10: 61,016,118 (GRCm39) D198V probably damaging Het
Tbc1d5 T C 17: 51,063,733 (GRCm39) I638V probably benign Het
Tomm70a A G 16: 56,970,266 (GRCm39) D548G probably benign Het
Ust A G 10: 8,121,700 (GRCm39) F303L probably damaging Het
Vps13d A G 4: 144,703,130 (GRCm39) S4306P probably benign Het
Zbed6 A T 1: 133,586,276 (GRCm39) S354T probably benign Het
Zfp691 A G 4: 119,027,693 (GRCm39) S180P 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
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
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'- GAGCCCTTCACATGAGACCTTTTCC -3'
(R):5'- CTCTTACCTGGCTGCTGAGAACAC -3'

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