Incidental Mutation 'R7023:Sptb'
ID 545796
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 045124-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.858) question?
Stock # R7023 (G1)
Quality Score 225.009
Status Not validated
Chromosome 12
Chromosomal Location 76627262-76757321 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) C to T at 76671862 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Valine to Isoleucine at position 364 (V364I)
Ref Sequence ENSEMBL: ENSMUSP00000129782 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000021458] [ENSMUST00000166101]
AlphaFold no structure available at present
Predicted Effect probably damaging
Transcript: ENSMUST00000021458
AA Change: V364I

PolyPhen 2 Score 0.996 (Sensitivity: 0.55; Specificity: 0.98)
SMART Domains Protein: ENSMUSP00000021458
Gene: ENSMUSG00000021061
AA Change: V364I

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 damaging
Transcript: ENSMUST00000166101
AA Change: V364I

PolyPhen 2 Score 0.996 (Sensitivity: 0.55; Specificity: 0.98)
SMART Domains Protein: ENSMUSP00000129782
Gene: ENSMUSG00000021061
AA Change: V364I

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: 100.0%
  • 3x: 100.0%
  • 10x: 99.7%
  • 20x: 98.9%
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: 85 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4833420G17Rik A G 13: 119,610,443 (GRCm39) H372R probably benign Het
4933405O20Rik T C 7: 50,250,001 (GRCm39) I345T probably damaging Het
4933427D14Rik A G 11: 72,069,229 (GRCm39) probably null Het
6430548M08Rik T C 8: 120,872,096 (GRCm39) V8A probably damaging Het
Adam2 A T 14: 66,280,505 (GRCm39) D501E probably benign Het
Agbl3 T C 6: 34,791,704 (GRCm39) V602A probably benign Het
Akap12 T C 10: 4,306,895 (GRCm39) M1235T probably benign Het
Arid5a G A 1: 36,356,631 (GRCm39) probably benign Het
Asxl1 T A 2: 153,242,469 (GRCm39) D1006E probably benign Het
AY074887 T C 9: 54,858,149 (GRCm39) probably benign Het
Btbd9 T A 17: 30,746,546 (GRCm39) R93S probably benign Het
Cabp2 A T 19: 4,132,658 (GRCm39) probably null Het
Cacna1e T C 1: 154,601,439 (GRCm39) D76G probably null Het
Cd177 A G 7: 24,459,187 (GRCm39) I74T probably benign Het
Chchd1 G A 14: 20,753,310 (GRCm39) probably benign Het
Col28a1 T C 6: 8,083,763 (GRCm39) R565G possibly damaging Het
Cpvl T A 6: 53,944,797 (GRCm39) I80F probably benign Het
Csgalnact1 T C 8: 68,811,081 (GRCm39) T530A probably benign Het
Cybrd1 A G 2: 70,968,922 (GRCm39) D265G probably benign Het
Cyp2c69 A T 19: 39,865,986 (GRCm39) N202K probably benign Het
D1Pas1 A G 1: 186,700,205 (GRCm39) N45D probably damaging Het
Dclre1a A G 19: 56,528,638 (GRCm39) V839A probably damaging Het
Degs1 A T 1: 182,106,630 (GRCm39) Y210N probably damaging Het
Doc2g A G 19: 4,054,778 (GRCm39) S220G probably benign Het
Epb41l2 T A 10: 25,388,875 (GRCm39) L885Q probably damaging Het
Fabp1 A T 6: 71,180,069 (GRCm39) probably null Het
Fat2 G A 11: 55,201,328 (GRCm39) S582L probably benign Het
Fcgbpl1 T A 7: 27,839,463 (GRCm39) C425* probably null Het
Fras1 A G 5: 96,857,943 (GRCm39) N2079S probably benign Het
Gdf6 T C 4: 9,860,210 (GRCm39) Y431H probably damaging Het
Gfra1 A T 19: 58,442,764 (GRCm39) L6Q probably damaging Het
Gm45861 T G 8: 28,071,034 (GRCm39) S1305A unknown Het
Gse1 T C 8: 120,957,387 (GRCm39) probably benign Het
Kmt2e A G 5: 23,705,485 (GRCm39) H1303R possibly damaging Het
Lck T C 4: 129,442,658 (GRCm39) D499G possibly damaging Het
Lepr A T 4: 101,646,484 (GRCm39) Y805F probably damaging Het
Lin7a A T 10: 107,218,489 (GRCm39) Y11F possibly damaging Het
Lrrc43 A G 5: 123,641,826 (GRCm39) K559E probably damaging Het
Megf6 T C 4: 154,338,602 (GRCm39) L467P possibly damaging Het
Mprip G A 11: 59,628,215 (GRCm39) G221R probably damaging Het
Myo5c T C 9: 75,208,738 (GRCm39) V1683A probably damaging Het
Nbeal2 G A 9: 110,467,686 (GRCm39) R501W probably damaging Het
Ncf1 G T 5: 134,254,116 (GRCm39) A219E possibly damaging Het
Nckap1l T C 15: 103,384,493 (GRCm39) I616T probably benign Het
Nlrp2 A T 7: 5,331,228 (GRCm39) C389* probably null Het
Nrg3 T C 14: 38,098,333 (GRCm39) E507G probably damaging Het
Or4p19 A G 2: 88,242,759 (GRCm39) L81P probably damaging Het
P4ha2 A T 11: 54,022,072 (GRCm39) T532S probably benign Het
Pappa A T 4: 65,269,955 (GRCm39) H1623L probably benign Het
Paqr6 A G 3: 88,273,353 (GRCm39) Y115C probably damaging Het
Pcolce2 A T 9: 95,560,521 (GRCm39) Q190L probably benign Het
Poll A G 19: 45,547,277 (GRCm39) I65T probably benign Het
Prmt9 T C 8: 78,276,086 (GRCm39) probably benign Het
Prpf39 T C 12: 65,100,074 (GRCm39) V130A possibly damaging Het
Prpf6 A G 2: 181,262,433 (GRCm39) D144G probably damaging Het
Rgs6 T A 12: 83,138,878 (GRCm39) probably benign Het
Rimbp2 A G 5: 128,879,847 (GRCm39) probably null Het
Ripor2 A G 13: 24,855,829 (GRCm39) T90A probably benign Het
Rnf150 T C 8: 83,590,706 (GRCm39) F23S probably damaging Het
Rpp40 G A 13: 36,082,889 (GRCm39) R200W possibly damaging Het
Rtp3 G A 9: 110,815,714 (GRCm39) S217L probably benign Het
Sacs A C 14: 61,446,264 (GRCm39) K2770T probably benign Het
Scn10a A T 9: 119,442,610 (GRCm39) I1545N probably damaging Het
Scn2b G T 9: 45,037,438 (GRCm39) V162L probably damaging Het
Sema6d A G 2: 124,506,831 (GRCm39) T880A probably damaging Het
Slc36a4 A G 9: 15,630,929 (GRCm39) D16G probably benign Het
Slc4a8 T A 15: 100,689,524 (GRCm39) I378K probably benign Het
Smco2 T A 6: 146,760,354 (GRCm39) L70* probably null Het
Susd4 A G 1: 182,592,613 (GRCm39) H3R probably damaging Het
Tbc1d16 T C 11: 119,049,617 (GRCm39) Q293R probably damaging Het
Tnfsf9 T A 17: 57,414,317 (GRCm39) M248K possibly damaging Het
Toporsl A G 4: 52,611,211 (GRCm39) N368S possibly damaging Het
Trip11 T C 12: 101,852,126 (GRCm39) E361G probably benign Het
Trrap T A 5: 144,728,964 (GRCm39) M626K possibly damaging Het
Ttn A T 2: 76,773,218 (GRCm39) S2395T probably damaging Het
Ubqln3 T C 7: 103,790,630 (GRCm39) R487G probably damaging Het
Vdac1 A G 11: 52,265,193 (GRCm39) Y22C probably damaging Het
Vmn1r59 C T 7: 5,457,477 (GRCm39) M94I probably benign Het
Vmn2r10 G T 5: 109,149,894 (GRCm39) D383E probably damaging Het
Vmn2r115 T C 17: 23,578,785 (GRCm39) Y753H probably damaging Het
Vmn2r97 G T 17: 19,134,663 (GRCm39) C27F probably damaging Het
Wasf1 T A 10: 40,812,471 (GRCm39) V420E unknown Het
Zfp94 A T 7: 24,002,821 (GRCm39) L201Q probably damaging Het
Zgpat TGGAGGAGGAGGAGGAGGA TGGAGGAGGAGGAGGA 2: 181,007,811 (GRCm39) probably benign Het
Zmym4 C A 4: 126,762,593 (GRCm39) R1410L probably damaging 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
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
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'- TCCCCTAAATAGTCAGCATGTAGTC -3'
(R):5'- AGTCTTACCCAATTCCTGCCAG -3'

Sequencing Primer
(F):5'- AGTCAGCATGTAGTCAATGCC -3'
(R):5'- CCAATTCCTGCCAGTGAGTGTTAG -3'
Posted On 2019-05-13