Incidental Mutation 'R1687:Sptb'
ID 189448
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 039720-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.869) question?
Stock # R1687 (G1)
Quality Score 154
Status Not validated
Chromosome 12
Chromosomal Location 76627262-76757321 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 76650473 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Aspartic acid to Glycine at position 1748 (D1748G)
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: D1748G

PolyPhen 2 Score 0.950 (Sensitivity: 0.79; Specificity: 0.95)
SMART Domains Protein: ENSMUSP00000021458
Gene: ENSMUSG00000021061
AA Change: D1748G

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: D1748G

PolyPhen 2 Score 0.950 (Sensitivity: 0.79; Specificity: 0.95)
SMART Domains Protein: ENSMUSP00000129782
Gene: ENSMUSG00000021061
AA Change: D1748G

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: 99.2%
  • 3x: 98.5%
  • 10x: 96.7%
  • 20x: 93.8%
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: 70 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abca5 A T 11: 110,184,714 (GRCm39) F931I probably benign Het
Alox15 T A 11: 70,240,744 (GRCm39) H212L probably benign Het
Arhgap42 A T 9: 9,035,538 (GRCm39) V268D probably benign Het
Armc9 A G 1: 86,084,677 (GRCm39) M1V probably null Het
Brca1 C T 11: 101,380,666 (GRCm39) C1789Y probably benign Het
Cacng4 A G 11: 107,627,585 (GRCm39) V138A probably benign Het
Camsap1 A G 2: 25,829,627 (GRCm39) F699S probably damaging Het
Ccm2 A G 11: 6,535,118 (GRCm39) R67G probably damaging Het
Cdk16 G A X: 20,562,898 (GRCm39) probably null Het
Cep85 T C 4: 133,875,324 (GRCm39) H546R probably benign Het
Cfap54 T C 10: 92,768,502 (GRCm39) D207G probably damaging Het
Cldn9 G T 17: 23,902,050 (GRCm39) R192S probably benign Het
Crybb3 A G 5: 113,227,633 (GRCm39) S63P probably damaging Het
Cux1 A G 5: 136,341,523 (GRCm39) L615P probably damaging Het
Dctn3 A G 4: 41,715,407 (GRCm39) Y154H probably damaging Het
Depdc5 CTCTTTCTTTCTTTCTTTCTTTCTTTCTTTCTTTCTTTCTTTCTTTCT CTCTTTCTTTCTTTCTTTCTTTCTTTCTTTCTTTCTTTCTTTCTTTCTTTCT 5: 33,067,751 (GRCm39) probably benign Het
Dnah3 A T 7: 119,645,009 (GRCm39) probably null Het
Eif1ad2 A G 12: 87,786,488 (GRCm39) D133G unknown Het
Eml6 G A 11: 29,783,187 (GRCm39) H565Y probably damaging Het
Ephb6 T C 6: 41,594,300 (GRCm39) V610A probably benign Het
Fam234a T C 17: 26,434,282 (GRCm39) Y333C probably damaging Het
Fbln1 G A 15: 85,111,307 (GRCm39) V154I probably benign Het
Frem2 A T 3: 53,561,373 (GRCm39) W1045R probably benign Het
Fubp1 A G 3: 151,933,838 (GRCm39) probably benign Het
Gja3 T A 14: 57,274,333 (GRCm39) N13I probably damaging Het
Gpr20 C A 15: 73,567,751 (GRCm39) V213L probably benign Het
Grk5 T C 19: 61,065,221 (GRCm39) I295T probably damaging Het
Gucy1b1 A G 3: 81,945,349 (GRCm39) F430L probably damaging Het
Gzmk T A 13: 113,310,462 (GRCm39) I119L probably benign Het
Hadh T C 3: 131,038,898 (GRCm39) I153V probably benign Het
Hsfy2 T C 1: 56,676,012 (GRCm39) Y175C probably damaging Het
Hspa5 T C 2: 34,665,836 (GRCm39) I560T probably benign Het
Igdcc4 T C 9: 65,038,945 (GRCm39) V863A probably damaging Het
Il22ra2 A G 10: 19,508,620 (GRCm39) D216G probably benign Het
Klc2 G A 19: 5,161,682 (GRCm39) P303S probably damaging Het
Lama5 C T 2: 179,835,859 (GRCm39) V1192I probably benign Het
Mon2 A G 10: 122,862,029 (GRCm39) S772P probably damaging Het
Mphosph8 T A 14: 56,909,935 (GRCm39) L96Q probably damaging Het
Mzf1 C A 7: 12,786,698 (GRCm39) R124L possibly damaging Het
Nckap1 A G 2: 80,350,929 (GRCm39) I726T probably damaging Het
Ndnf A T 6: 65,680,407 (GRCm39) T229S probably benign Het
Npas3 A T 12: 54,095,658 (GRCm39) probably null Het
Nrap C T 19: 56,343,961 (GRCm39) E729K probably damaging Het
Nsun2 T A 13: 69,775,716 (GRCm39) F387I probably damaging Het
Or11g27 T C 14: 50,771,159 (GRCm39) S97P possibly damaging Het
Pabpc1l C T 2: 163,886,226 (GRCm39) T452M probably benign Het
Pcdh10 T C 3: 45,334,450 (GRCm39) Y255H probably damaging Het
Pdcd6ip A T 9: 113,529,087 (GRCm39) Y72N probably damaging Het
Pglyrp1 A T 7: 18,618,629 (GRCm39) probably benign Het
Pkp2 T C 16: 16,086,573 (GRCm39) probably null Het
Ppard A G 17: 28,516,154 (GRCm39) Y126C probably damaging Het
Prkcq T C 2: 11,295,344 (GRCm39) Y598H probably damaging Het
Rhobtb1 A G 10: 69,106,109 (GRCm39) T287A probably damaging Het
Sema4b T C 7: 79,869,010 (GRCm39) Y361H probably damaging Het
Slfn9 A T 11: 82,872,983 (GRCm39) I640N probably damaging Het
Smurf2 C A 11: 106,726,896 (GRCm39) probably null Het
Spag5 T C 11: 78,195,755 (GRCm39) V354A probably benign Het
St6galnac5 C A 3: 152,686,887 (GRCm39) L22F probably benign Het
Sugp2 T C 8: 70,695,284 (GRCm39) S86P probably damaging Het
Tnk1 T C 11: 69,747,299 (GRCm39) I111V possibly damaging Het
Tnni3k T A 3: 154,645,263 (GRCm39) I541F possibly damaging Het
Trim36 G T 18: 46,321,724 (GRCm39) H108N possibly damaging Het
Ttn T C 2: 76,701,251 (GRCm39) probably benign Het
Usp28 T A 9: 48,935,317 (GRCm39) S89R probably benign Het
Vmn2r121 T C X: 123,042,488 (GRCm39) D223G probably benign Het
Vmn2r65 T A 7: 84,590,026 (GRCm39) Y630F probably benign Het
Washc2 T A 6: 116,233,673 (GRCm39) S900T probably benign Het
Wdr72 A G 9: 74,117,481 (GRCm39) N731S probably benign Het
Xrra1 T A 7: 99,525,451 (GRCm39) F123L probably damaging Het
Zfp648 A G 1: 154,079,988 (GRCm39) D49G 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
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'- TGTGCTTCTCATCTATGAGGCCCAG -3'
(R):5'- AGTCAGTAGACGCAGGCAACCATC -3'

Sequencing Primer
(F):5'- ATCTCGGTGCCTGTGTAGAAATAG -3'
(R):5'- TTTCACAGAGATGAGGTCACAC -3'
Posted On 2014-05-14