Incidental Mutation 'R1459:Sptb'
ID 161988
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 039514-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.869) question?
Stock # R1459 (G1)
Quality Score 225
Status Validated
Chromosome 12
Chromosomal Location 76627262-76757321 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to A at 76658657 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Lysine to Methionine at position 1262 (K1262M)
Ref Sequence ENSEMBL: ENSMUSP00000021458 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000021458] [ENSMUST00000166101]
AlphaFold no structure available at present
Predicted Effect probably benign
Transcript: ENSMUST00000021458
AA Change: K1262M

PolyPhen 2 Score 0.010 (Sensitivity: 0.96; Specificity: 0.77)
SMART Domains Protein: ENSMUSP00000021458
Gene: ENSMUSG00000021061
AA Change: K1262M

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 probably benign
Transcript: ENSMUST00000166101
AA Change: K1262M

PolyPhen 2 Score 0.005 (Sensitivity: 0.97; Specificity: 0.74)
SMART Domains Protein: ENSMUSP00000129782
Gene: ENSMUSG00000021061
AA Change: K1262M

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
Meta Mutation Damage Score 0.2336 question?
Coding Region Coverage
  • 1x: 98.9%
  • 3x: 98.0%
  • 10x: 95.3%
  • 20x: 89.5%
Validation Efficiency 96% (87/91)
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: 85 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4933430I17Rik C T 4: 62,450,578 (GRCm39) R51W probably damaging Het
Abcb1a T A 5: 8,752,920 (GRCm39) L557Q probably damaging Het
Abcb4 T C 5: 8,968,662 (GRCm39) F334L possibly damaging Het
Adamts14 T A 10: 61,034,583 (GRCm39) T1102S probably benign Het
Adamtsl1 T C 4: 86,344,102 (GRCm39) Y1719H probably damaging Het
Adcyap1 T C 17: 93,507,550 (GRCm39) probably null Het
Ankrd13c T A 3: 157,677,947 (GRCm39) L219Q probably damaging Het
Ano3 C A 2: 110,711,174 (GRCm39) A97S probably benign Het
Apaf1 T C 10: 90,898,022 (GRCm39) N245S probably benign Het
Apob A G 12: 8,056,047 (GRCm39) T1510A probably benign Het
Apob A G 12: 8,061,937 (GRCm39) D3473G possibly damaging Het
Arfgap3 G A 15: 83,191,138 (GRCm39) T12I probably benign Het
Bend4 A G 5: 67,557,418 (GRCm39) V466A probably damaging Het
Bend7 G A 2: 4,749,239 (GRCm39) E119K probably damaging Het
Capn5 G T 7: 97,781,049 (GRCm39) R243S possibly damaging Het
Cd84 A G 1: 171,679,510 (GRCm39) I63V probably benign Het
Cd86 T A 16: 36,449,350 (GRCm39) T16S probably benign Het
Cdc42bpb A G 12: 111,262,734 (GRCm39) probably benign Het
Cep20 G A 16: 14,122,380 (GRCm39) T128I possibly damaging Het
Cep95 C T 11: 106,708,781 (GRCm39) S26L probably damaging Het
Cldn19 C T 4: 119,112,810 (GRCm39) A14V probably damaging Het
Cluap1 T A 16: 3,755,453 (GRCm39) M356K probably damaging Het
Coq7 C T 7: 118,109,260 (GRCm39) G263S unknown Het
Ctnnd2 A C 15: 30,847,445 (GRCm39) T679P probably damaging Het
Dnah10 A G 5: 124,820,750 (GRCm39) D528G possibly damaging Het
Dvl1 T A 4: 155,938,476 (GRCm39) N133K probably damaging Het
Efcab7 T G 4: 99,769,744 (GRCm39) H550Q probably null Het
Fastkd5 C T 2: 130,456,717 (GRCm39) M624I probably damaging Het
Fbxo42 T C 4: 140,895,073 (GRCm39) V12A probably benign Het
Gabarapl1 T A 6: 129,515,635 (GRCm39) M91K possibly damaging Het
Gas7 A G 11: 67,552,902 (GRCm39) N154S probably damaging Het
Gm21814 T A 6: 149,483,650 (GRCm39) noncoding transcript Het
Gnl3 G A 14: 30,739,803 (GRCm39) R12C probably damaging Het
Golga2 T G 2: 32,187,807 (GRCm39) probably null Het
Grk3 T A 5: 113,062,878 (GRCm39) R656S probably benign Het
Gsap T A 5: 21,412,236 (GRCm39) probably benign Het
H60c T C 10: 3,210,240 (GRCm39) Q103R probably benign Het
Hnrnpr T A 4: 136,056,755 (GRCm39) S252T probably damaging Het
Itgb4 A T 11: 115,869,937 (GRCm39) T40S probably benign Het
Krtap27-1 T C 16: 88,468,302 (GRCm39) N81D probably benign Het
Lilrb4a T A 10: 51,367,683 (GRCm39) L75Q probably benign Het
Lrp2 T A 2: 69,290,821 (GRCm39) E3546D probably damaging Het
Lrp2 T A 2: 69,313,738 (GRCm39) D2331V probably damaging Het
Lzts2 T A 19: 45,009,893 (GRCm39) V9E probably damaging Het
Matr3 T A 18: 35,717,709 (GRCm39) D302E probably benign Het
Mcoln2 A G 3: 145,897,979 (GRCm39) probably null Het
Metap2 T C 10: 93,704,811 (GRCm39) D272G probably damaging Het
Mitf A G 6: 97,987,428 (GRCm39) D337G probably damaging Het
Mrtfb T C 16: 13,219,433 (GRCm39) V693A possibly damaging Het
Msh2 A G 17: 87,985,771 (GRCm39) E116G probably benign Het
Nlrp10 T A 7: 108,523,555 (GRCm39) M642L probably benign Het
Noxa1 G T 2: 24,982,558 (GRCm39) Q86K probably benign Het
Nrap T C 19: 56,372,562 (GRCm39) T48A probably benign Het
Nup160 T A 2: 90,520,494 (GRCm39) H308Q probably damaging Het
Osbpl11 T C 16: 33,056,699 (GRCm39) L711P probably damaging Het
Osbpl6 A G 2: 76,385,409 (GRCm39) N281S probably benign Het
Pcnp C T 16: 55,844,703 (GRCm39) E66K possibly damaging Het
Phf11 T A 14: 59,482,227 (GRCm39) E175D probably damaging Het
Pik3cg A G 12: 32,254,983 (GRCm39) Y335H probably damaging Het
Plekhg4 T C 8: 106,108,431 (GRCm39) L1053S probably damaging Het
Plekhh2 G T 17: 84,918,203 (GRCm39) E1271* probably null Het
Ppp2r2b T A 18: 42,871,055 (GRCm39) Y82F probably damaging Het
Prkd3 T C 17: 79,278,796 (GRCm39) D430G probably damaging Het
Prl7d1 C T 13: 27,893,240 (GRCm39) D224N possibly damaging Het
Ptpdc1 A T 13: 48,740,173 (GRCm39) N419K possibly damaging Het
Serinc5 T A 13: 92,797,695 (GRCm39) probably null Het
Sipa1 A G 19: 5,701,692 (GRCm39) L981P probably damaging Het
Slc16a7 A T 10: 125,066,489 (GRCm39) C383* probably null Het
Slc19a1 C G 10: 76,878,369 (GRCm39) Y301* probably null Het
Slc22a14 A T 9: 119,052,827 (GRCm39) V14E possibly damaging Het
Slpi C A 2: 164,196,837 (GRCm39) C95F probably damaging Het
Smurf2 G A 11: 106,743,333 (GRCm39) H225Y possibly damaging Het
Son T C 16: 91,452,230 (GRCm39) S326P possibly damaging Het
Sugp2 T A 8: 70,696,714 (GRCm39) probably benign Het
Tatdn2 T A 6: 113,687,031 (GRCm39) H747Q probably damaging Het
Tcn2 C A 11: 3,877,516 (GRCm39) R44L probably benign Het
Tenm3 G A 8: 48,689,006 (GRCm39) R2194C probably damaging Het
Tnks2 T A 19: 36,822,931 (GRCm39) probably benign Het
Top3a A T 11: 60,650,188 (GRCm39) I120N probably damaging Het
Umodl1 T A 17: 31,201,232 (GRCm39) probably benign Het
Umodl1 T C 17: 31,205,478 (GRCm39) V662A probably benign Het
Ush2a T C 1: 188,595,048 (GRCm39) S3827P probably benign Het
Vasn T A 16: 4,466,473 (GRCm39) probably null Het
Vmn2r69 A T 7: 85,055,908 (GRCm39) C743* probably null Het
Vmn2r79 C A 7: 86,687,002 (GRCm39) H794Q 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
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
R2011:Sptb UTSW 12 76,679,246 (GRCm39) missense possibly damaging 0.95
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'- CTGAGTTAAGTACCGCAAGTCCCC -3'
(R):5'- ACCGAGACAAGATCCTGAGTCCTG -3'

Sequencing Primer
(F):5'- AAGTCCCCAGTTCCTGTAATG -3'
(R):5'- CTGTGGACTCTGGCAACAAG -3'
Posted On 2014-03-14