Incidental Mutation 'R0734:Sptbn2'
ID68187
Institutional Source Beutler Lab
Gene Symbol Sptbn2
Ensembl Gene ENSMUSG00000067889
Gene Namespectrin beta, non-erythrocytic 2
SynonymsSpnb3
MMRRC Submission 038915-MU
Accession Numbers
Is this an essential gene? Non essential (E-score: 0.000) question?
Stock #R0734 (G1)
Quality Score225
Status Validated
Chromosome19
Chromosomal Location4711208-4752353 bp(+) (GRCm38)
Type of Mutationnonsense
DNA Base Change (assembly) A to T at 4748123 bp
ZygosityHeterozygous
Amino Acid Change Arginine to Stop codon at position 1959 (R1959*)
Ref Sequence ENSEMBL: ENSMUSP00000008991 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000008991] [ENSMUST00000178353]
Predicted Effect probably null
Transcript: ENSMUST00000008991
AA Change: R1959*
SMART Domains Protein: ENSMUSP00000008991
Gene: ENSMUSG00000067889
AA Change: R1959*

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
Meta Mutation Damage Score 0.6052 question?
Coding Region Coverage
  • 1x: 99.5%
  • 3x: 98.8%
  • 10x: 97.0%
  • 20x: 93.3%
Validation Efficiency 99% (80/81)
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
4930562C15Rik T A 16: 4,850,334 S530T probably benign Het
Acer2 G T 4: 86,917,559 K223N probably benign Het
Adam19 T G 11: 46,127,403 C431G probably damaging Het
Adamts16 T G 13: 70,738,481 probably benign Het
Aox2 A T 1: 58,305,341 E531V probably benign Het
Apaf1 A T 10: 91,037,021 N720K probably benign Het
Atrnl1 T A 19: 57,654,861 W394R probably damaging Het
Bcl6 T C 16: 23,968,139 E634G probably damaging Het
Cfap65 T A 1: 74,918,887 Y954F probably damaging Het
Cobl A G 11: 12,375,971 V168A probably damaging Het
Cped1 C T 6: 22,085,041 P210S probably damaging Het
Crb1 C T 1: 139,337,084 V199M probably benign Het
Cyp2j6 A T 4: 96,523,844 probably benign Het
Dhrs3 C G 4: 144,927,176 S289W probably damaging Het
Dido1 T G 2: 180,660,042 Q2023P probably benign Het
Dlg4 G A 11: 70,042,705 G550R probably damaging Het
Dnah12 C A 14: 26,800,013 H1928N probably benign Het
Dthd1 A C 5: 62,839,410 probably benign Het
Erg C A 16: 95,370,025 G269C possibly damaging Het
Erich6 G A 3: 58,629,388 probably benign Het
F5 G C 1: 164,198,917 R1686P probably damaging Het
Fancc T C 13: 63,331,842 R300G probably damaging Het
Fcer1g T A 1: 171,231,179 K47* probably null Het
Flt4 A G 11: 49,626,717 T289A possibly damaging Het
Gcnt2 T A 13: 40,860,521 F56Y probably benign Het
Gpatch8 G T 11: 102,481,400 S437R unknown Het
Grin2a T A 16: 9,579,611 I871F possibly damaging Het
Hsd17b4 T C 18: 50,170,777 V439A possibly damaging Het
Hykk A T 9: 54,946,432 K346M possibly damaging Het
Ifi208 T C 1: 173,683,335 L352S probably damaging Het
Ikzf1 T C 11: 11,758,195 V110A probably damaging Het
Irak3 A T 10: 120,145,637 probably benign Het
Lamp5 T A 2: 136,059,030 V50E probably damaging Het
Lgr6 C T 1: 134,994,010 A199T probably damaging Het
Lrch3 C T 16: 32,997,483 R570* probably null Het
Map1lc3a T C 2: 155,276,976 V20A possibly damaging Het
Map3k14 C A 11: 103,227,000 K655N probably benign Het
Mark2 A G 19: 7,285,981 probably benign Het
Mbtd1 G A 11: 93,923,146 G205D probably damaging Het
Med13 T C 11: 86,301,237 T861A probably benign Het
Meltf T A 16: 31,881,958 Y99N probably damaging Het
Mex3d G A 10: 80,381,532 T617I possibly damaging Het
Muc13 G A 16: 33,803,082 V249I probably damaging Het
Myo18a C A 11: 77,847,404 P1688Q probably damaging Het
Naaladl1 A T 19: 6,112,874 probably null Het
Ncoa3 T A 2: 166,069,191 probably benign Het
Nf2 T C 11: 4,820,409 T67A probably benign Het
Nin A G 12: 70,030,113 V1056A probably benign Het
Olfr1426 T A 19: 12,088,119 R224S probably benign Het
Olfr1458 G A 19: 13,103,278 R3C possibly damaging Het
Olfr59 A T 11: 74,288,946 Q100L probably damaging Het
P3h1 T C 4: 119,238,688 L331P probably damaging Het
Pabpc4l T C 3: 46,446,973 K79E possibly damaging Het
Pam T A 1: 97,864,362 R445* probably null Het
Pcdhb6 T C 18: 37,335,334 I436T probably damaging Het
Piezo2 A G 18: 63,041,723 Y1987H probably damaging Het
Plch2 G A 4: 154,996,283 T477I probably damaging Het
Postn G A 3: 54,362,715 G72R probably damaging Het
Proca1 G A 11: 78,201,802 probably benign Het
Psip1 T A 4: 83,463,588 probably benign Het
Ptprd G A 4: 76,140,597 P153L probably damaging Het
Rgl1 T C 1: 152,554,300 D242G probably damaging Het
Ric1 T A 19: 29,594,818 I671K possibly damaging Het
Rxrg T A 1: 167,627,444 C199S probably damaging Het
Sec24c A C 14: 20,693,745 D1006A probably damaging Het
Sec63 A G 10: 42,796,208 T173A probably benign Het
Sfxn5 T C 6: 85,267,865 probably benign Het
Spam1 A G 6: 24,796,949 I300V probably benign Het
Spem1 A G 11: 69,821,271 L189P probably damaging Het
Timeless C T 10: 128,250,060 R935W probably damaging Het
Tnfrsf21 C T 17: 43,038,213 H239Y probably benign Het
Trim24 T C 6: 37,919,465 Y286H possibly damaging Het
Ttyh2 A G 11: 114,710,193 probably benign Het
Zbtb21 C T 16: 97,952,627 C180Y probably damaging Het
Zfp746 T C 6: 48,064,899 T298A probably damaging Het
Other mutations in Sptbn2
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00421:Sptbn2 APN 19 4724705 missense possibly damaging 0.94
IGL00688:Sptbn2 APN 19 4725938 missense probably damaging 1.00
IGL01339:Sptbn2 APN 19 4745972 nonsense probably null
IGL01373:Sptbn2 APN 19 4745972 nonsense probably null
IGL01420:Sptbn2 APN 19 4734125 missense probably benign
IGL01456:Sptbn2 APN 19 4746749 missense probably damaging 1.00
IGL01953:Sptbn2 APN 19 4749693 missense probably benign
IGL03026:Sptbn2 APN 19 4724233 critical splice donor site probably null
IGL03275:Sptbn2 APN 19 4732661 missense possibly damaging 0.65
IGL03286:Sptbn2 APN 19 4747832 missense probably damaging 0.97
F5770:Sptbn2 UTSW 19 4750632 missense probably damaging 1.00
PIT4696001:Sptbn2 UTSW 19 4745577 missense probably benign 0.00
R0046:Sptbn2 UTSW 19 4745377 intron probably benign
R0046:Sptbn2 UTSW 19 4745377 intron probably benign
R0121:Sptbn2 UTSW 19 4745293 missense probably damaging 1.00
R0127:Sptbn2 UTSW 19 4724744 missense probably damaging 1.00
R0212:Sptbn2 UTSW 19 4746942 critical splice donor site probably null
R0277:Sptbn2 UTSW 19 4745145 missense probably benign 0.28
R0417:Sptbn2 UTSW 19 4737926 missense probably benign 0.01
R0457:Sptbn2 UTSW 19 4745938 missense possibly damaging 0.89
R0536:Sptbn2 UTSW 19 4726690 missense probably damaging 0.99
R0631:Sptbn2 UTSW 19 4739986 missense probably benign 0.01
R0742:Sptbn2 UTSW 19 4718983 missense possibly damaging 0.46
R1195:Sptbn2 UTSW 19 4745893 missense possibly damaging 0.85
R1195:Sptbn2 UTSW 19 4745893 missense possibly damaging 0.85
R1195:Sptbn2 UTSW 19 4745893 missense possibly damaging 0.85
R1364:Sptbn2 UTSW 19 4732665 missense probably damaging 1.00
R1495:Sptbn2 UTSW 19 4718976 missense possibly damaging 0.92
R1498:Sptbn2 UTSW 19 4744246 missense possibly damaging 0.94
R1606:Sptbn2 UTSW 19 4750242 critical splice donor site probably null
R1678:Sptbn2 UTSW 19 4750497 missense probably damaging 1.00
R1746:Sptbn2 UTSW 19 4745964 nonsense probably null
R1820:Sptbn2 UTSW 19 4726596 missense probably damaging 0.98
R1830:Sptbn2 UTSW 19 4732541 missense probably benign 0.09
R1863:Sptbn2 UTSW 19 4732685 missense possibly damaging 0.54
R1967:Sptbn2 UTSW 19 4745299 missense probably benign 0.00
R2085:Sptbn2 UTSW 19 4738559 missense probably benign 0.09
R2301:Sptbn2 UTSW 19 4734138 missense probably benign 0.00
R2310:Sptbn2 UTSW 19 4718935 missense probably benign 0.19
R2888:Sptbn2 UTSW 19 4748636 missense possibly damaging 0.52
R3788:Sptbn2 UTSW 19 4745922 missense probably damaging 1.00
R4429:Sptbn2 UTSW 19 4738355 missense probably damaging 1.00
R4536:Sptbn2 UTSW 19 4732602 missense probably damaging 1.00
R4662:Sptbn2 UTSW 19 4739239 missense probably damaging 1.00
R4672:Sptbn2 UTSW 19 4732496 missense probably benign 0.25
R4731:Sptbn2 UTSW 19 4742480 missense probably damaging 0.96
R4747:Sptbn2 UTSW 19 4748154 missense probably benign 0.27
R4889:Sptbn2 UTSW 19 4729430 missense possibly damaging 0.69
R4891:Sptbn2 UTSW 19 4738469 missense probably damaging 1.00
R4965:Sptbn2 UTSW 19 4729309 missense probably benign 0.13
R4968:Sptbn2 UTSW 19 4729202 intron probably null
R4981:Sptbn2 UTSW 19 4751658 missense probably benign 0.22
R5159:Sptbn2 UTSW 19 4737857 missense probably benign 0.12
R5202:Sptbn2 UTSW 19 4724184 missense probably damaging 1.00
R5253:Sptbn2 UTSW 19 4750082 missense probably benign 0.01
R5294:Sptbn2 UTSW 19 4718908 missense possibly damaging 0.67
R5465:Sptbn2 UTSW 19 4750105 missense probably benign 0.00
R5546:Sptbn2 UTSW 19 4725950 missense probably damaging 1.00
R5593:Sptbn2 UTSW 19 4748947 missense probably damaging 1.00
R5780:Sptbn2 UTSW 19 4724667 missense probably damaging 1.00
R5835:Sptbn2 UTSW 19 4738219 missense probably damaging 1.00
R6008:Sptbn2 UTSW 19 4739278 missense possibly damaging 0.89
R6108:Sptbn2 UTSW 19 4731392 critical splice donor site probably null
R6236:Sptbn2 UTSW 19 4748138 missense probably benign 0.01
R6307:Sptbn2 UTSW 19 4724646 missense probably damaging 1.00
R6383:Sptbn2 UTSW 19 4732496 missense possibly damaging 0.89
R6397:Sptbn2 UTSW 19 4742418 missense possibly damaging 0.91
R6453:Sptbn2 UTSW 19 4744180 missense possibly damaging 0.67
R6561:Sptbn2 UTSW 19 4747926 missense probably benign 0.39
R6564:Sptbn2 UTSW 19 4732024 missense probably damaging 1.00
R6644:Sptbn2 UTSW 19 4749012 missense probably benign 0.05
R6703:Sptbn2 UTSW 19 4749814 missense probably benign
R6703:Sptbn2 UTSW 19 4749815 missense probably benign
R6753:Sptbn2 UTSW 19 4747785 missense probably benign 0.01
R7007:Sptbn2 UTSW 19 4744145 missense possibly damaging 0.82
R7131:Sptbn2 UTSW 19 4749460 missense probably null
R7219:Sptbn2 UTSW 19 4724173 missense probably damaging 1.00
R7285:Sptbn2 UTSW 19 4737443 missense probably benign 0.00
R7308:Sptbn2 UTSW 19 4751574 missense probably benign
R7469:Sptbn2 UTSW 19 4745118 missense probably benign 0.00
R7502:Sptbn2 UTSW 19 4748082 missense probably benign 0.02
V7580:Sptbn2 UTSW 19 4750632 missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- AAGGCTGTCCGAGAGTTGATGCTG -3'
(R):5'- GGTCTCTGGGAGCCACCAAAATAC -3'

Sequencing Primer
(F):5'- TGCAGATGGATGCCCAGG -3'
(R):5'- gatagagtaagagaaccgtgacc -3'
Posted On2013-09-03