Incidental Mutation 'R2011:Sptb'
ID 219766
Institutional Source Beutler Lab
Gene Symbol Sptb
Ensembl Gene ENSMUSG00000021061
Gene Name spectrin beta, erythrocytic
Synonyms LOC383567, brain erythroid spectrin (235E), spectrin R, D330027P03Rik, Spnb-1, Spnb1
MMRRC Submission 040020-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.858) question?
Stock # R2011 (G1)
Quality Score 182
Status Not validated
Chromosome 12
Chromosomal Location 76627262-76757321 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) G to C at 76679246 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Arginine to Glycine at position 70 (R70G)
Ref Sequence ENSEMBL: ENSMUSP00000129782 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000021458] [ENSMUST00000166101]
AlphaFold no structure available at present
Predicted Effect possibly damaging
Transcript: ENSMUST00000021458
AA Change: R70G

PolyPhen 2 Score 0.503 (Sensitivity: 0.88; Specificity: 0.90)
SMART Domains Protein: ENSMUSP00000021458
Gene: ENSMUSG00000021061
AA Change: R70G

DomainStartEndE-ValueType
CH 56 156 2.73e-26 SMART
CH 175 273 4.57e-28 SMART
SPEC 305 411 2.71e0 SMART
SPEC 425 525 4.65e-23 SMART
SPEC 531 634 4.51e-21 SMART
SPEC 640 740 3.02e-31 SMART
SPEC 746 845 1.47e-20 SMART
SPEC 851 951 1.04e-20 SMART
SPEC 957 1058 7.22e-20 SMART
SPEC 1064 1165 2.06e-24 SMART
SPEC 1171 1271 3.84e-15 SMART
SPEC 1277 1376 2.22e-20 SMART
SPEC 1382 1475 5.04e-10 SMART
SPEC 1481 1581 3.58e-24 SMART
SPEC 1587 1687 4.11e-24 SMART
SPEC 1693 1794 2.91e-24 SMART
SPEC 1800 1900 7.8e-16 SMART
SPEC 1906 2006 3.16e-25 SMART
SPEC 2012 2193 4.32e-9 SMART
PH 2180 2291 8.98e-16 SMART
Predicted Effect possibly damaging
Transcript: ENSMUST00000166101
AA Change: R70G

PolyPhen 2 Score 0.951 (Sensitivity: 0.79; Specificity: 0.95)
SMART Domains Protein: ENSMUSP00000129782
Gene: ENSMUSG00000021061
AA Change: R70G

DomainStartEndE-ValueType
CH 56 156 2.73e-26 SMART
CH 175 273 4.57e-28 SMART
SPEC 305 411 2.71e0 SMART
SPEC 425 525 4.65e-23 SMART
SPEC 531 634 4.51e-21 SMART
SPEC 640 740 3.02e-31 SMART
SPEC 746 845 1.47e-20 SMART
SPEC 851 951 1.04e-20 SMART
SPEC 957 1058 7.22e-20 SMART
SPEC 1064 1165 2.06e-24 SMART
SPEC 1171 1271 3.84e-15 SMART
SPEC 1277 1376 2.22e-20 SMART
SPEC 1382 1475 5.87e-11 SMART
SPEC 1481 1581 3.58e-24 SMART
SPEC 1587 1687 4.11e-24 SMART
SPEC 1693 1794 2.91e-24 SMART
SPEC 1800 1900 7.8e-16 SMART
SPEC 1906 2006 3.16e-25 SMART
SPEC 2012 2117 1.16e-9 SMART
Coding Region Coverage
  • 1x: 99.3%
  • 3x: 98.6%
  • 10x: 97.2%
  • 20x: 95.0%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This locus encodes a member of the spectrin gene family. Spectrin proteins, along with ankyrin, play a role in cell membrane organization and stability. The protein encoded by this locus functions in stability of erythrocyte membranes, and mutations in this gene have been associated with spherocytosis type 2, hereditary elliptocytosis, and neonatal hemolytic anemia. Alternatively spliced transcript variants have been described. [provided by RefSeq, Nov 2009]
PHENOTYPE: Homozygotes for a spontaneous mutation exhibit a severe microcytic anemia with erythrocyte fragility, hepatomegaly, and jaundice. Mutants die within a few days of birth. Heterozygotes are mildly anemic. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 107 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abhd6 A T 14: 8,042,742 (GRCm38) T100S probably benign Het
Adam6a T C 12: 113,508,998 (GRCm39) I457T probably benign Het
Aff3 T C 1: 38,246,996 (GRCm39) N863S probably benign Het
Agk C A 6: 40,353,168 (GRCm39) D177E probably benign Het
Alg9 C T 9: 50,699,500 (GRCm39) A209V probably damaging Het
Arl6 A T 16: 59,444,676 (GRCm39) I51K probably damaging Het
Bpi A T 2: 158,103,272 (GRCm39) H89L probably damaging Het
C1qtnf1 T A 11: 118,339,110 (GRCm39) F260Y probably benign Het
Cblc T A 7: 19,518,747 (GRCm39) D452V probably benign Het
Ccar1 T C 10: 62,612,473 (GRCm39) T231A probably benign Het
Ccdc112 A G 18: 46,420,499 (GRCm39) L417P probably damaging Het
Ccdc34 G A 2: 109,874,649 (GRCm39) R336Q possibly damaging Het
CK137956 A G 4: 127,844,829 (GRCm39) S305P probably benign Het
Clip2 T C 5: 134,531,969 (GRCm39) D612G probably damaging Het
Col28a1 T C 6: 8,059,360 (GRCm39) T692A probably benign Het
Copg2 A T 6: 30,793,676 (GRCm39) probably null Het
Ctnna2 T A 6: 76,950,774 (GRCm39) I566F possibly damaging Het
Cux2 C T 5: 121,999,389 (GRCm39) D1184N probably benign Het
Dclk3 A G 9: 111,297,422 (GRCm39) E322G probably benign Het
Ddx41 A T 13: 55,681,906 (GRCm39) probably null Het
Dnaaf2 G A 12: 69,243,559 (GRCm39) P107S probably damaging Het
Eif2ak4 A G 2: 118,261,428 (GRCm39) E578G probably damaging Het
Exd1 A G 2: 119,359,144 (GRCm39) probably benign Het
Fat2 G A 11: 55,173,583 (GRCm39) P2377S probably damaging Het
Fbxl18 T C 5: 142,858,214 (GRCm39) T741A probably benign Het
Fgr C A 4: 132,724,832 (GRCm39) A311E probably damaging Het
Fmo4 T C 1: 162,626,458 (GRCm39) T363A probably damaging Het
Fsbp T C 4: 11,584,006 (GRCm39) V235A probably benign Het
Gm1110 T A 9: 26,805,554 (GRCm39) H366L probably benign Het
Gm43302 T C 5: 105,438,846 (GRCm39) N14S probably damaging Het
Gm5422 A G 10: 31,124,764 (GRCm39) noncoding transcript Het
Gm57858 A T 3: 36,064,827 (GRCm39) C515* probably null Het
Gpr21 A G 2: 37,407,547 (GRCm39) E31G probably damaging Het
Gucy1b2 G T 14: 62,646,207 (GRCm39) N560K probably damaging Het
Hmcn1 T C 1: 150,553,085 (GRCm39) Q2535R probably benign Het
Hnrnpm A T 17: 33,883,598 (GRCm39) N264K probably damaging Het
Hyal6 A T 6: 24,734,723 (GRCm39) I219L possibly damaging Het
Ifi211 A G 1: 173,735,169 (GRCm39) S87P probably damaging Het
Il17rb A T 14: 29,718,797 (GRCm39) C428* probably null Het
Iqca1 T C 1: 89,973,348 (GRCm39) N808S probably benign Het
Kcnu1 A G 8: 26,408,470 (GRCm39) I94V probably benign Het
Lrba A T 3: 86,217,324 (GRCm39) E517V probably damaging Het
Mcidas A G 13: 113,130,515 (GRCm39) E37G possibly damaging Het
Med23 T A 10: 24,755,653 (GRCm39) F83L possibly damaging Het
Micu2 T C 14: 58,191,590 (GRCm39) probably null Het
Mrgprx2 A T 7: 48,132,282 (GRCm39) C179S probably damaging Het
Myo6 A G 9: 80,215,004 (GRCm39) T1236A probably damaging Het
Myo7a A T 7: 97,703,915 (GRCm39) V1946E possibly damaging Het
Nek10 A T 14: 14,885,122 (GRCm38) Y695F probably damaging Het
Nr3c2 A T 8: 77,636,422 (GRCm39) I508F possibly damaging Het
Or11g27 T C 14: 50,771,141 (GRCm39) S91P probably damaging Het
Or14a260 A T 7: 85,984,955 (GRCm39) Y216* probably null Het
Or2ag13 T C 7: 106,472,634 (GRCm39) I273V probably benign Het
Or5w1b A T 2: 87,476,233 (GRCm39) I78N probably damaging Het
Or8k23 A T 2: 86,186,530 (GRCm39) H65Q possibly damaging Het
Or9s13 T C 1: 92,548,471 (GRCm39) V281A probably benign Het
Oxct1 T C 15: 4,183,243 (GRCm39) S485P probably benign Het
Oxt A G 2: 130,418,572 (GRCm39) D61G probably damaging Het
P2ry10 A C X: 106,146,241 (GRCm39) I59L probably damaging Het
Parp11 A G 6: 127,454,854 (GRCm39) N124S probably benign Het
Pcdh7 T A 5: 57,876,971 (GRCm39) N175K probably damaging Het
Pdgfrb T A 18: 61,194,566 (GRCm39) S114R probably benign Het
Pfdn5 A G 15: 102,234,956 (GRCm39) N54S possibly damaging Het
Phc2 T A 4: 128,617,378 (GRCm39) V468E probably benign Het
Piezo2 T C 18: 63,192,815 (GRCm39) T1605A probably damaging Het
Pik3cb A T 9: 98,987,632 (GRCm39) Y35* probably null Het
Piwil2 A T 14: 70,664,083 (GRCm39) M22K probably damaging Het
Plag1 A G 4: 3,904,889 (GRCm39) F101L probably damaging Het
Pomt2 A G 12: 87,158,173 (GRCm39) L680P possibly damaging Het
Ppp1r36 A G 12: 76,465,700 (GRCm39) probably null Het
Prkag2 C T 5: 25,076,052 (GRCm39) probably null Het
Prkg1 T C 19: 31,641,542 (GRCm39) D47G possibly damaging Het
Prl6a1 G A 13: 27,499,352 (GRCm39) G45D probably benign Het
Rbm20 G A 19: 53,847,859 (GRCm39) C1135Y probably damaging Het
Recql5 A T 11: 115,787,923 (GRCm39) N465K probably benign Het
Rlig1 T G 10: 100,419,820 (GRCm39) D58A probably damaging Het
Rtcb A T 10: 85,777,797 (GRCm39) I459N probably damaging Het
Rtp3 A T 9: 110,815,102 (GRCm39) probably benign Het
Rundc3b T A 5: 8,562,409 (GRCm39) probably null Het
Scube3 A G 17: 28,387,132 (GRCm39) T877A probably damaging Het
Sh2d4a A T 8: 68,799,394 (GRCm39) Q421L probably benign Het
Siglec1 A T 2: 130,925,277 (GRCm39) Y395N probably damaging Het
Slc6a1 G T 6: 114,284,731 (GRCm39) G263V probably damaging Het
Slco1c1 T A 6: 141,500,833 (GRCm39) F437L probably benign Het
Slco3a1 G A 7: 73,996,419 (GRCm39) A329V probably benign Het
Spag9 T A 11: 93,983,201 (GRCm39) L504* probably null Het
Spen A T 4: 141,200,640 (GRCm39) N2662K probably damaging Het
Stk3 A G 15: 35,072,644 (GRCm39) S136P probably damaging Het
Synj1 A T 16: 90,735,584 (GRCm39) F1456L probably damaging Het
Tbx5 T C 5: 119,979,971 (GRCm39) probably null Het
Tchh G A 3: 93,354,268 (GRCm39) R1236Q unknown Het
Timd4 C A 11: 46,710,857 (GRCm39) T253K possibly damaging Het
Tmc6 A G 11: 117,660,232 (GRCm39) Y669H probably damaging Het
Tmem151a C T 19: 5,132,966 (GRCm39) R80H probably benign Het
Tpgs1 T C 10: 79,511,722 (GRCm39) L288P probably damaging Het
Trhde T C 10: 114,334,698 (GRCm39) I659V probably benign Het
Trpm7 A T 2: 126,665,917 (GRCm39) Y896* probably null Het
Ttc5 C A 14: 51,019,007 (GRCm39) E37* probably null Het
Uvrag A G 7: 98,589,096 (GRCm39) probably null Het
Vmn1r59 T A 7: 5,457,283 (GRCm39) D159V probably damaging Het
Vmn2r78 G A 7: 86,604,287 (GRCm39) V822M possibly damaging Het
Vnn1 C A 10: 23,770,869 (GRCm39) Y32* probably null Het
Wrn A G 8: 33,726,432 (GRCm39) V1380A probably benign Het
Zc3h14 A C 12: 98,746,527 (GRCm39) S579R possibly damaging Het
Zfp277 G A 12: 40,367,217 (GRCm39) Q480* probably null Het
Zfp456 G A 13: 67,514,993 (GRCm39) Q238* probably null Het
Zranb3 T A 1: 128,019,638 (GRCm39) T35S probably benign Het
Other mutations in Sptb
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00159:Sptb APN 12 76,668,105 (GRCm39) missense probably benign 0.00
IGL00160:Sptb APN 12 76,669,943 (GRCm39) missense probably damaging 1.00
IGL00229:Sptb APN 12 76,667,527 (GRCm39) missense probably benign 0.20
IGL00820:Sptb APN 12 76,679,251 (GRCm39) missense probably damaging 1.00
IGL01309:Sptb APN 12 76,634,237 (GRCm39) missense probably benign 0.16
IGL01408:Sptb APN 12 76,659,921 (GRCm39) missense possibly damaging 0.93
IGL01450:Sptb APN 12 76,671,014 (GRCm39) missense possibly damaging 0.89
IGL01455:Sptb APN 12 76,659,686 (GRCm39) missense probably damaging 1.00
IGL01457:Sptb APN 12 76,659,329 (GRCm39) splice site probably benign
IGL01680:Sptb APN 12 76,677,456 (GRCm39) missense probably damaging 1.00
IGL02070:Sptb APN 12 76,652,313 (GRCm39) missense possibly damaging 0.82
IGL02346:Sptb APN 12 76,667,788 (GRCm39) missense probably damaging 1.00
IGL02452:Sptb APN 12 76,655,810 (GRCm39) critical splice donor site probably null
IGL02515:Sptb APN 12 76,653,261 (GRCm39) missense possibly damaging 0.51
IGL02545:Sptb APN 12 76,654,754 (GRCm39) critical splice donor site probably null
IGL02644:Sptb APN 12 76,652,391 (GRCm39) missense probably damaging 1.00
IGL02878:Sptb APN 12 76,667,527 (GRCm39) missense probably benign 0.20
IGL03007:Sptb APN 12 76,668,115 (GRCm39) missense probably damaging 1.00
IGL03220:Sptb APN 12 76,659,684 (GRCm39) missense probably benign 0.06
IGL03343:Sptb APN 12 76,630,330 (GRCm39) unclassified probably benign
IGL03098:Sptb UTSW 12 76,668,273 (GRCm39) missense probably damaging 1.00
PIT4472001:Sptb UTSW 12 76,667,460 (GRCm39) missense probably damaging 1.00
R0047:Sptb UTSW 12 76,669,724 (GRCm39) missense probably damaging 0.99
R0365:Sptb UTSW 12 76,647,157 (GRCm39) missense probably benign 0.12
R0373:Sptb UTSW 12 76,668,145 (GRCm39) missense probably benign 0.03
R0704:Sptb UTSW 12 76,630,368 (GRCm39) missense probably damaging 0.99
R1005:Sptb UTSW 12 76,648,633 (GRCm39) critical splice donor site probably null
R1109:Sptb UTSW 12 76,650,377 (GRCm39) missense probably damaging 1.00
R1264:Sptb UTSW 12 76,659,381 (GRCm39) missense probably damaging 1.00
R1358:Sptb UTSW 12 76,668,100 (GRCm39) missense probably damaging 1.00
R1358:Sptb UTSW 12 76,668,095 (GRCm39) frame shift probably null
R1459:Sptb UTSW 12 76,658,657 (GRCm39) missense probably benign 0.01
R1518:Sptb UTSW 12 76,650,798 (GRCm39) missense possibly damaging 0.95
R1628:Sptb UTSW 12 76,630,622 (GRCm39) missense probably damaging 1.00
R1668:Sptb UTSW 12 76,667,943 (GRCm39) missense probably benign
R1677:Sptb UTSW 12 76,676,423 (GRCm39) missense probably damaging 1.00
R1687:Sptb UTSW 12 76,650,473 (GRCm39) missense possibly damaging 0.95
R1695:Sptb UTSW 12 76,667,641 (GRCm39) missense probably benign 0.10
R1708:Sptb UTSW 12 76,659,348 (GRCm39) missense probably damaging 1.00
R1761:Sptb UTSW 12 76,659,382 (GRCm39) missense probably damaging 0.96
R1925:Sptb UTSW 12 76,669,027 (GRCm39) missense probably damaging 1.00
R2373:Sptb UTSW 12 76,667,935 (GRCm39) missense probably damaging 1.00
R2517:Sptb UTSW 12 76,696,643 (GRCm39) missense possibly damaging 0.55
R2918:Sptb UTSW 12 76,645,532 (GRCm39) missense probably damaging 0.97
R2961:Sptb UTSW 12 76,650,356 (GRCm39) missense probably benign 0.19
R3409:Sptb UTSW 12 76,657,589 (GRCm39) missense possibly damaging 0.78
R3410:Sptb UTSW 12 76,657,589 (GRCm39) missense possibly damaging 0.78
R3411:Sptb UTSW 12 76,657,589 (GRCm39) missense possibly damaging 0.78
R3744:Sptb UTSW 12 76,647,174 (GRCm39) missense probably benign
R4112:Sptb UTSW 12 76,644,553 (GRCm39) missense probably damaging 0.99
R4177:Sptb UTSW 12 76,659,953 (GRCm39) missense probably benign 0.25
R4194:Sptb UTSW 12 76,659,784 (GRCm39) missense probably benign 0.44
R4301:Sptb UTSW 12 76,659,471 (GRCm39) missense probably damaging 1.00
R4555:Sptb UTSW 12 76,659,625 (GRCm39) missense probably benign 0.03
R4619:Sptb UTSW 12 76,630,581 (GRCm39) nonsense probably null
R4620:Sptb UTSW 12 76,630,581 (GRCm39) nonsense probably null
R4625:Sptb UTSW 12 76,634,100 (GRCm39) splice site probably null
R4728:Sptb UTSW 12 76,630,153 (GRCm39) missense probably benign 0.00
R4751:Sptb UTSW 12 76,673,884 (GRCm39) missense probably benign 0.07
R4810:Sptb UTSW 12 76,669,971 (GRCm39) nonsense probably null
R4888:Sptb UTSW 12 76,655,811 (GRCm39) missense probably benign 0.00
R4894:Sptb UTSW 12 76,671,768 (GRCm39) critical splice donor site probably null
R5114:Sptb UTSW 12 76,656,052 (GRCm39) missense probably damaging 1.00
R5191:Sptb UTSW 12 76,659,608 (GRCm39) missense probably benign 0.12
R5479:Sptb UTSW 12 76,646,625 (GRCm39) missense probably benign 0.04
R5646:Sptb UTSW 12 76,634,215 (GRCm39) missense probably benign
R5725:Sptb UTSW 12 76,669,888 (GRCm39) missense probably benign 0.25
R5727:Sptb UTSW 12 76,669,888 (GRCm39) missense probably benign 0.25
R5797:Sptb UTSW 12 76,650,473 (GRCm39) missense possibly damaging 0.95
R5874:Sptb UTSW 12 76,645,501 (GRCm39) missense possibly damaging 0.91
R5952:Sptb UTSW 12 76,679,158 (GRCm39) missense probably benign 0.02
R5956:Sptb UTSW 12 76,650,942 (GRCm39) missense probably benign
R6298:Sptb UTSW 12 76,667,428 (GRCm39) critical splice donor site probably null
R6470:Sptb UTSW 12 76,659,603 (GRCm39) missense probably damaging 1.00
R6477:Sptb UTSW 12 76,653,166 (GRCm39) missense probably damaging 1.00
R6736:Sptb UTSW 12 76,659,954 (GRCm39) missense possibly damaging 0.49
R6854:Sptb UTSW 12 76,650,254 (GRCm39) missense probably damaging 1.00
R6969:Sptb UTSW 12 76,654,781 (GRCm39) missense probably damaging 1.00
R6987:Sptb UTSW 12 76,660,021 (GRCm39) missense probably benign 0.00
R7023:Sptb UTSW 12 76,671,862 (GRCm39) missense probably damaging 1.00
R7366:Sptb UTSW 12 76,650,968 (GRCm39) missense probably damaging 1.00
R7379:Sptb UTSW 12 76,657,651 (GRCm39) missense probably damaging 1.00
R7389:Sptb UTSW 12 76,671,003 (GRCm39) missense probably damaging 0.98
R7392:Sptb UTSW 12 76,671,003 (GRCm39) missense probably damaging 0.98
R7477:Sptb UTSW 12 76,675,339 (GRCm39) missense probably damaging 1.00
R7653:Sptb UTSW 12 76,675,271 (GRCm39) missense probably benign 0.06
R7684:Sptb UTSW 12 76,658,969 (GRCm39) missense probably benign 0.06
R7733:Sptb UTSW 12 76,644,695 (GRCm39) splice site probably null
R7846:Sptb UTSW 12 76,655,300 (GRCm39) nonsense probably null
R8048:Sptb UTSW 12 76,675,333 (GRCm39) missense probably benign 0.02
R8261:Sptb UTSW 12 76,668,036 (GRCm39) missense probably benign 0.06
R8324:Sptb UTSW 12 76,665,936 (GRCm39) missense possibly damaging 0.73
R8512:Sptb UTSW 12 76,648,826 (GRCm39) missense possibly damaging 0.51
R8515:Sptb UTSW 12 76,658,815 (GRCm39) missense probably benign 0.10
R8558:Sptb UTSW 12 76,659,561 (GRCm39) missense probably benign 0.09
R8872:Sptb UTSW 12 76,658,813 (GRCm39) missense probably benign 0.37
R8907:Sptb UTSW 12 76,634,186 (GRCm39) missense probably benign 0.16
R9047:Sptb UTSW 12 76,679,308 (GRCm39) splice site probably benign
R9079:Sptb UTSW 12 76,677,454 (GRCm39) missense probably damaging 1.00
R9166:Sptb UTSW 12 76,673,776 (GRCm39) missense probably damaging 0.96
R9381:Sptb UTSW 12 76,634,292 (GRCm39) missense probably benign
R9601:Sptb UTSW 12 76,667,763 (GRCm39) missense probably damaging 1.00
R9680:Sptb UTSW 12 76,677,489 (GRCm39) missense probably damaging 1.00
R9771:Sptb UTSW 12 76,650,353 (GRCm39) missense probably damaging 1.00
X0057:Sptb UTSW 12 76,677,513 (GRCm39) missense probably benign
Z1176:Sptb UTSW 12 76,667,507 (GRCm39) nonsense probably null
Z1177:Sptb UTSW 12 76,653,219 (GRCm39) missense probably benign 0.22
Z1177:Sptb UTSW 12 76,630,358 (GRCm39) missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- AGCCAAGGCCTTTCCTCAAG -3'
(R):5'- GACTTGCAGGGTTGGCATATACC -3'

Sequencing Primer
(F):5'- AAGGCCTTTCCTCAAGAGGTG -3'
(R):5'- GGTTGGCATATACCCCCAGAAATG -3'
Posted On 2014-08-25