Incidental Mutation 'R7502:Sptbn2'
ID 581589
Institutional Source Beutler Lab
Gene Symbol Sptbn2
Ensembl Gene ENSMUSG00000067889
Gene Name spectrin beta, non-erythrocytic 2
Synonyms Spnb3
MMRRC Submission 045575-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R7502 (G1)
Quality Score 225.009
Status Not validated
Chromosome 19
Chromosomal Location 4761195-4802388 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 4798110 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Valine to Alanine at position 1945 (V1945A)
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: V1945A

PolyPhen 2 Score 0.017 (Sensitivity: 0.95; Specificity: 0.80)
SMART Domains Protein: ENSMUSP00000008991
Gene: ENSMUSG00000067889
AA Change: V1945A

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: 100.0%
  • 3x: 100.0%
  • 10x: 99.7%
  • 20x: 99.1%
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: 87 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Acan A G 7: 78,743,951 (GRCm39) T661A probably damaging Het
Actrt2 T C 4: 154,751,383 (GRCm39) Y251C probably benign Het
Adat3 T A 10: 80,442,255 (GRCm39) V31D probably damaging Het
Adgrf4 T C 17: 42,980,548 (GRCm39) H179R possibly damaging Het
Ahcyl1 A T 3: 107,578,513 (GRCm39) Y241* probably null Het
Anks1 C A 17: 28,227,114 (GRCm39) T589K possibly damaging Het
Arhgap15 A G 2: 43,670,630 (GRCm39) T5A probably benign Het
Cacna1e A T 1: 154,344,734 (GRCm39) M1130K probably null Het
Ccdc121rt1 G A 1: 181,338,443 (GRCm39) Q170* probably null Het
Ceacam18 A T 7: 43,286,298 (GRCm39) D57V probably damaging Het
Celf1 C T 2: 90,835,100 (GRCm39) Q194* probably null Het
Celsr2 T A 3: 108,306,218 (GRCm39) T2029S probably benign Het
Cep170 T C 1: 176,583,595 (GRCm39) D163G probably damaging Het
Cfap210 A T 2: 69,606,488 (GRCm39) D309E probably benign Het
Cftr T C 6: 18,214,295 (GRCm39) F157S probably damaging Het
Chchd3 T C 6: 32,945,164 (GRCm39) E114G probably damaging Het
Cntnap2 T A 6: 46,460,963 (GRCm39) S666R possibly damaging Het
Col6a5 C T 9: 105,753,075 (GRCm39) V2266I probably benign Het
Ctr9 A G 7: 110,633,133 (GRCm39) D127G probably benign Het
Ctsl A T 13: 64,514,882 (GRCm39) F141I probably damaging Het
Dcpp1 T A 17: 24,101,615 (GRCm39) Y121* probably null Het
Ddx42 T C 11: 106,138,565 (GRCm39) V788A probably benign Het
Ehd4 T C 2: 119,921,874 (GRCm39) I461V probably benign Het
Elp6 C A 9: 110,134,376 (GRCm39) L5I possibly damaging Het
Faap20 T C 4: 155,334,793 (GRCm39) S2P Het
Fam98b A C 2: 117,094,344 (GRCm39) Y218S probably damaging Het
Fbxl4 T A 4: 22,376,655 (GRCm39) D30E probably benign Het
Fcrlb T C 1: 170,736,210 (GRCm39) T189A probably damaging Het
Gfpt1 A G 6: 87,043,671 (GRCm39) D302G probably benign Het
Gzmg T G 14: 56,394,284 (GRCm39) E203D not run Het
Hsph1 A C 5: 149,553,838 (GRCm39) V210G probably damaging Het
Il20rb A T 9: 100,350,479 (GRCm39) M138K probably damaging Het
Itpr1 A T 6: 108,360,639 (GRCm39) E688D probably benign Het
Jmjd1c T G 10: 67,067,794 (GRCm39) S1585A probably damaging Het
Kcnk3 A T 5: 30,780,062 (GRCm39) T371S possibly damaging Het
Kif11 T A 19: 37,398,255 (GRCm39) S694T possibly damaging Het
Kpna7 T A 5: 144,942,731 (GRCm39) H85L probably benign Het
Lipf A T 19: 33,954,006 (GRCm39) I366F probably damaging Het
Lrrc27 A G 7: 138,794,748 (GRCm39) H37R probably benign Het
Mki67 T C 7: 135,302,512 (GRCm39) T841A possibly damaging Het
Mtss1 A G 15: 58,820,210 (GRCm39) S120P probably damaging Het
Nav1 A G 1: 135,397,404 (GRCm39) W922R probably damaging Het
Nwd1 A G 8: 73,434,021 (GRCm39) E1206G probably damaging Het
Obscn T C 11: 58,885,635 (GRCm39) S7933G unknown Het
Or13j1 T C 4: 43,706,316 (GRCm39) H84R probably damaging Het
Or1p4-ps1 T C 11: 74,208,010 (GRCm39) V53A probably benign Het
Or2g25 T A 17: 37,971,122 (GRCm39) Y34F probably damaging Het
Or2k2 T C 4: 58,785,648 (GRCm39) I25V probably benign Het
Or4c52 T C 2: 89,845,355 (GRCm39) L27S probably benign Het
Otog A T 7: 45,948,039 (GRCm39) I162F probably damaging Het
Paf1 G A 7: 28,095,293 (GRCm39) V153I possibly damaging Het
Pcdhga11 T A 18: 37,889,554 (GRCm39) D187E probably benign Het
Peg10 CCACATCAGGATCCACATCAGGATGCACATCAGCATCAGGATCCCCATCAGGATGCACATCAGGATCCACATCAGGATGCACATCAG CCACATCAGGATCCACATCAGGATGCACATCAG 6: 4,756,398 (GRCm39) probably benign Het
Pitrm1 G T 13: 6,610,658 (GRCm39) R424L probably damaging Het
Pla2g4e T A 2: 120,004,819 (GRCm39) probably null Het
Plaat1 T C 16: 29,046,919 (GRCm39) V146A probably benign Het
Prorp T C 12: 55,351,206 (GRCm39) Y172H probably damaging Het
Prrc2a T C 17: 35,381,286 (GRCm39) N61S unknown Het
Ror1 T A 4: 100,190,827 (GRCm39) D61E probably benign Het
Ryr3 G A 2: 112,542,706 (GRCm39) P3168S probably benign Het
Serinc4 T A 2: 121,284,250 (GRCm39) I289F probably damaging Het
Sez6l A T 5: 112,623,347 (GRCm39) L68H possibly damaging Het
Sez6l2 A G 7: 126,560,915 (GRCm39) E460G probably benign Het
Sh3tc1 C T 5: 35,863,406 (GRCm39) G927D probably damaging Het
Slc22a27 G C 19: 7,903,747 (GRCm39) T130S probably damaging Het
Slc38a8 C A 8: 120,227,820 (GRCm39) A37S possibly damaging Het
Slc40a1 T C 1: 45,958,134 (GRCm39) N100D probably damaging Het
Slc49a3 G A 5: 108,591,646 (GRCm39) probably null Het
Snx30 T C 4: 59,894,567 (GRCm39) F382L possibly damaging Het
Sox1 A G 8: 12,446,913 (GRCm39) N185D possibly damaging Het
Spsb1 C T 4: 149,991,385 (GRCm39) R61H possibly damaging Het
St18 T A 1: 6,898,194 (GRCm39) N665K probably benign Het
Syne1 A G 10: 5,283,446 (GRCm39) S1540P probably damaging Het
Syne2 G A 12: 76,141,100 (GRCm39) V1331M probably damaging Het
Tfap2c T C 2: 172,393,639 (GRCm39) S185P probably benign Het
Tnfsf8 T A 4: 63,769,398 (GRCm39) D71V probably damaging Het
Tnn T C 1: 159,937,929 (GRCm39) D1196G probably benign Het
Ttll8 A G 15: 88,817,639 (GRCm39) probably null Het
Tubgcp3 A G 8: 12,691,207 (GRCm39) F444L probably damaging Het
Txndc11 G A 16: 10,905,742 (GRCm39) P596L probably benign Het
Ubr4 C T 4: 139,139,983 (GRCm39) P1189S possibly damaging Het
Usp32 T C 11: 84,913,724 (GRCm39) D869G possibly damaging Het
Vmn1r202 G T 13: 22,686,188 (GRCm39) N76K probably damaging Het
Wfdc6a C T 2: 164,421,761 (GRCm39) M132I probably benign Het
Wnk2 A T 13: 49,300,720 (GRCm39) probably null Het
Xbp1 A G 11: 5,474,683 (GRCm39) probably null Het
Zfp551 A T 7: 12,149,725 (GRCm39) Y561* probably null 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
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
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'- TTACTGGATACCACGGACAAATTC -3'
(R):5'- CAGAAATTACAGGCATGGGC -3'

Sequencing Primer
(F):5'- CCGATTCTTTAAGGCTGTCCGAG -3'
(R):5'- CCCTGTTAGGTGCATCTAGCCAG -3'
Posted On 2019-10-17