Incidental Mutation 'R0127:Sptbn2'
ID 21493
Institutional Source Beutler Lab
Gene Symbol Sptbn2
Ensembl Gene ENSMUSG00000067889
Gene Name spectrin beta, non-erythrocytic 2
Synonyms Spnb3
MMRRC Submission 038412-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R0127 (G1)
Quality Score 225
Status Validated (trace)
Chromosome 19
Chromosomal Location 4761195-4802388 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) G to T at 4774772 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Valine to Leucine at position 142 (V142L)
Ref Sequence ENSEMBL: ENSMUSP00000008991 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000008991]
AlphaFold Q68FG2
Predicted Effect probably damaging
Transcript: ENSMUST00000008991
AA Change: V142L

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000008991
Gene: ENSMUSG00000067889
AA Change: V142L

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 0.5396 question?
Coding Region Coverage
  • 1x: 99.0%
  • 3x: 98.1%
  • 10x: 95.7%
  • 20x: 90.9%
Validation Efficiency 99% (85/86)
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: 83 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
2310061N02Rik T C 16: 88,504,342 (GRCm39) T152A probably benign Het
Abca1 T C 4: 53,067,155 (GRCm39) I1351V probably benign Het
Acap1 A T 11: 69,778,043 (GRCm39) probably benign Het
Als2cl T C 9: 110,720,935 (GRCm39) L521P probably damaging Het
Ankrd50 T C 3: 38,510,384 (GRCm39) D661G probably benign Het
Atp6v1b2 T A 8: 69,556,112 (GRCm39) N262K probably damaging Het
Baz1a T A 12: 54,945,491 (GRCm39) D1288V possibly damaging Het
Bbs1 A T 19: 4,945,057 (GRCm39) D371E probably benign Het
Bphl A G 13: 34,248,029 (GRCm39) probably benign Het
Caskin2 C A 11: 115,691,820 (GRCm39) R988S probably damaging Het
Cbr1 C A 16: 93,406,875 (GRCm39) T197N probably damaging Het
Ccdc88c T C 12: 100,901,999 (GRCm39) E1213G possibly damaging Het
Ccna1 A G 3: 54,957,169 (GRCm39) F83L probably damaging Het
Cep290 T A 10: 100,372,787 (GRCm39) probably benign Het
Cep89 C A 7: 35,127,687 (GRCm39) T543K possibly damaging Het
Cmtm7 T C 9: 114,610,738 (GRCm39) M45V probably benign Het
Col16a1 T A 4: 129,946,650 (GRCm39) V91E probably damaging Het
Csmd3 T C 15: 47,845,326 (GRCm39) N920S probably benign Het
Cyp26b1 A G 6: 84,554,190 (GRCm39) probably benign Het
Dao T A 5: 114,158,024 (GRCm39) H215Q probably damaging Het
Dido1 T C 2: 180,313,617 (GRCm39) D885G probably benign Het
Dlx4 T G 11: 95,032,055 (GRCm39) M240L probably benign Het
Dnah5 C T 15: 28,295,071 (GRCm39) P1351L probably damaging Het
Dnah6 T A 6: 73,015,717 (GRCm39) probably benign Het
Dock5 A T 14: 68,083,491 (GRCm39) D139E probably benign Het
Dynlt5 T C 4: 102,859,649 (GRCm39) probably benign Het
Fam234b T C 6: 135,195,821 (GRCm39) probably benign Het
Fat2 T C 11: 55,180,112 (GRCm39) T1410A probably benign Het
Fsip2 T A 2: 82,815,269 (GRCm39) N3667K probably benign Het
Gm5114 T C 7: 39,057,880 (GRCm39) I580V probably benign Het
Hapln1 A T 13: 89,755,988 (GRCm39) Y264F probably benign Het
Heatr5a A G 12: 51,972,188 (GRCm39) V694A probably benign Het
Hps1 A G 19: 42,759,550 (GRCm39) probably benign Het
Igsf9b G T 9: 27,245,681 (GRCm39) R1216L possibly damaging Het
Il4ra G T 7: 125,168,242 (GRCm39) C87F probably damaging Het
Kmt5b A G 19: 3,836,465 (GRCm39) M1V probably null Het
Krit1 A G 5: 3,872,178 (GRCm39) E401G probably damaging Het
Lamp1 T C 8: 13,224,491 (GRCm39) V385A probably damaging Het
Ly6g5b A G 17: 35,333,567 (GRCm39) Y82H probably damaging Het
Mapre2 A G 18: 23,937,232 (GRCm39) I25V probably benign Het
Mep1a A G 17: 43,808,777 (GRCm39) probably benign Het
Mkrn1 A G 6: 39,376,209 (GRCm39) W466R probably benign Het
Muc2 C A 7: 141,302,691 (GRCm39) F11L probably benign Het
Nebl T A 2: 17,397,794 (GRCm39) M501L probably benign Het
Oga A T 19: 45,760,327 (GRCm39) I277N probably damaging Het
Or11g2 A G 14: 50,855,789 (GRCm39) I37V probably benign Het
Or4p18 A G 2: 88,232,699 (GRCm39) V193A probably benign Het
Or5w8 A G 2: 87,687,827 (GRCm39) I103V probably benign Het
Or8g32 A G 9: 39,305,238 (GRCm39) I50M probably benign Het
Pkd1l2 A G 8: 117,776,787 (GRCm39) probably benign Het
Pkhd1l1 A G 15: 44,418,001 (GRCm39) M2886V probably damaging Het
Pop5 T A 5: 115,378,230 (GRCm39) L58H probably damaging Het
Prkch C A 12: 73,768,561 (GRCm39) H444N possibly damaging Het
Reln T C 5: 22,209,134 (GRCm39) D1148G probably damaging Het
Rffl G A 11: 82,703,458 (GRCm39) T120M probably damaging Het
Rmdn2 A T 17: 79,977,998 (GRCm39) S320C probably damaging Het
Rrbp1 C T 2: 143,831,864 (GRCm39) R101H probably benign Het
Rtf1 G A 2: 119,557,224 (GRCm39) R443H probably damaging Het
Serac1 G T 17: 6,099,115 (GRCm39) L559I probably damaging Het
Slc12a1 A G 2: 125,061,682 (GRCm39) R958G probably damaging Het
Slc15a3 T A 19: 10,833,350 (GRCm39) W456R probably damaging Het
Slc28a2b T A 2: 122,347,550 (GRCm39) probably null Het
Slc35f5 C T 1: 125,503,942 (GRCm39) P290L probably damaging Het
Slc35g2 C T 9: 100,435,170 (GRCm39) R167Q probably benign Het
Spag4 T C 2: 155,909,962 (GRCm39) V302A probably damaging Het
Spire2 A C 8: 124,084,836 (GRCm39) probably benign Het
Syt17 T A 7: 118,009,164 (GRCm39) D352V probably damaging Het
Tars3 A T 7: 65,314,717 (GRCm39) D425V probably benign Het
Thsd7a A G 6: 12,554,907 (GRCm39) S326P probably benign Het
Tnpo2 T C 8: 85,767,257 (GRCm39) S64P probably damaging Het
Tonsl G T 15: 76,517,685 (GRCm39) A678D probably benign Het
Trim12c A G 7: 103,990,113 (GRCm39) probably null Het
Tsc22d1 A G 14: 76,656,421 (GRCm39) T885A possibly damaging Het
Ttn T C 2: 76,572,542 (GRCm39) D26117G probably damaging Het
Ttn T A 2: 76,707,355 (GRCm39) probably benign Het
Ugt3a1 T C 15: 9,306,342 (GRCm39) F164L probably benign Het
Vmn2r89 A G 14: 51,693,160 (GRCm39) N170S probably damaging Het
Vrk2 G T 11: 26,484,313 (GRCm39) probably benign Het
Wt1 C A 2: 104,963,802 (GRCm39) D207E probably damaging Het
Zbtb46 G A 2: 181,053,608 (GRCm39) A368V probably benign Het
Zc3h13 A T 14: 75,560,694 (GRCm39) D428V unknown Het
Zcchc8 C G 5: 123,845,400 (GRCm39) G320A probably damaging Het
Znfx1 T C 2: 166,886,130 (GRCm39) E810G 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
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
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'- GAGCAGGTTGCTGAAAGACATCGT -3'
(R):5'- TGCCTCAAAGGCAAACTGACATAGAA -3'

Sequencing Primer
(F):5'- AAGACATCGTGGTCTCATGC -3'
(R):5'- atccacctgcctctgcc -3'
Posted On 2013-04-11