Incidental Mutation 'R1668:Sptb'
ID 187396
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 039704-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.858) question?
Stock # R1668 (G1)
Quality Score 225
Status Not validated
Chromosome 12
Chromosomal Location 76627262-76757321 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 76667943 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Valine to Alanine at position 718 (V718A)
Ref Sequence ENSEMBL: ENSMUSP00000129782 (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: V718A

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)
SMART Domains Protein: ENSMUSP00000021458
Gene: ENSMUSG00000021061
AA Change: V718A

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: V718A

PolyPhen 2 Score 0.000 (Sensitivity: 1.00; Specificity: 0.00)
SMART Domains Protein: ENSMUSP00000129782
Gene: ENSMUSG00000021061
AA Change: V718A

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: 99.1%
  • 3x: 98.4%
  • 10x: 96.5%
  • 20x: 93.0%
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: 76 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adra2c T C 5: 35,437,641 (GRCm39) S138P probably damaging Het
Appl1 A C 14: 26,645,811 (GRCm39) S666R probably damaging Het
Arhgap45 A G 10: 79,864,584 (GRCm39) S879G possibly damaging Het
Calcoco2 T C 11: 95,993,563 (GRCm39) M140V probably benign Het
Cap2 C A 13: 46,768,799 (GRCm39) H147N probably damaging Het
Chd9 A T 8: 91,767,814 (GRCm39) H2437L probably damaging Het
Col5a3 A G 9: 20,682,392 (GRCm39) I1684T unknown Het
Comp A T 8: 70,831,607 (GRCm39) probably null Het
Cyp2c50 A T 19: 40,079,499 (GRCm39) M198L probably benign Het
Dnaaf2 A G 12: 69,243,465 (GRCm39) V532A probably benign Het
Dnah10 A T 5: 124,842,626 (GRCm39) Q1358L probably benign Het
Dop1b T A 16: 93,562,404 (GRCm39) S832T probably damaging Het
Dus3l T G 17: 57,073,912 (GRCm39) F162C possibly damaging Het
Epb41l4a A G 18: 34,054,962 (GRCm39) L42P probably damaging Het
Ercc5 T A 1: 44,206,193 (GRCm39) S369T probably benign Het
Fbxl2 C T 9: 113,818,214 (GRCm39) V211M probably benign Het
Fermt3 A G 19: 6,996,060 (GRCm39) V45A probably damaging Het
Frs3 C A 17: 48,014,147 (GRCm39) P280Q possibly damaging Het
Fxn A G 19: 24,239,377 (GRCm39) Y172H probably damaging Het
Gabpa T C 16: 84,643,069 (GRCm39) V122A probably damaging Het
Gsta4 A G 9: 78,111,570 (GRCm39) T66A probably benign Het
Hsdl2 C T 4: 59,612,697 (GRCm39) T296M probably damaging Het
Kank4 T C 4: 98,667,133 (GRCm39) N438S probably damaging Het
Krt24 A G 11: 99,175,444 (GRCm39) I197T probably benign Het
Lct T C 1: 128,215,459 (GRCm39) probably null Het
Lsmem1 GTACATACATACATACATACATACATACA GTACATACATACATACATACATACATACATACA 12: 40,235,260 (GRCm39) probably null Het
Mc4r A G 18: 66,992,480 (GRCm39) L211P probably damaging Het
Mfsd4b5 T C 10: 39,849,687 (GRCm39) T111A probably damaging Het
Mgat5b T A 11: 116,874,474 (GRCm39) N635K probably benign Het
Mms19 A T 19: 41,940,995 (GRCm39) M443K possibly damaging Het
Morc2a G A 11: 3,625,885 (GRCm39) V162M probably benign Het
Mroh5 T C 15: 73,659,754 (GRCm39) N359S probably benign Het
Mroh9 T C 1: 162,852,161 (GRCm39) I843V possibly damaging Het
Nbeal2 T C 9: 110,467,961 (GRCm39) D436G probably damaging Het
Nbr1 A G 11: 101,460,592 (GRCm39) D502G probably benign Het
Ngfr C T 11: 95,478,371 (GRCm39) G5D probably damaging Het
Nlrc4 G A 17: 74,752,901 (GRCm39) T494M probably damaging Het
Notch3 T A 17: 32,377,563 (GRCm39) H171L probably damaging Het
Nsmaf A G 4: 6,398,880 (GRCm39) L795P probably damaging Het
Nup210 T C 6: 91,005,787 (GRCm39) T616A possibly damaging Het
Or10d5 C A 9: 39,861,465 (GRCm39) V201L possibly damaging Het
Or1j18 T A 2: 36,625,204 (GRCm39) Y290* probably null Het
Or5ak25 T A 2: 85,269,220 (GRCm39) Y94F probably benign Het
Or5b113 A C 19: 13,342,234 (GRCm39) M81L probably benign Het
Osbpl5 T C 7: 143,262,776 (GRCm39) H192R probably damaging Het
Parp2 G A 14: 51,058,313 (GRCm39) R486Q probably benign Het
Pcgf6 G A 19: 47,028,544 (GRCm39) A286V probably damaging Het
Pla2r1 T C 2: 60,258,990 (GRCm39) T1133A probably damaging Het
Plekha2 T C 8: 25,562,070 (GRCm39) N48S probably damaging Het
Pole T G 5: 110,445,235 (GRCm39) S461A probably damaging Het
Ppfibp2 T C 7: 107,329,099 (GRCm39) L536P probably damaging Het
Prkcz G T 4: 155,374,208 (GRCm39) F69L probably damaging Het
Prkd1 G A 12: 50,441,709 (GRCm39) H277Y probably damaging Het
Rab23 A T 1: 33,773,935 (GRCm39) K132* probably null Het
Rbck1 T A 2: 152,158,819 (GRCm39) S488C probably damaging Het
Rbl1 T C 2: 157,001,654 (GRCm39) Y878C probably damaging Het
Rpn2 C T 2: 157,136,075 (GRCm39) T161M possibly damaging Het
Rufy4 G A 1: 74,186,837 (GRCm39) V542I probably benign Het
Serpinb3d A G 1: 107,008,481 (GRCm39) V128A probably benign Het
Smarca2 A G 19: 26,624,434 (GRCm39) I365V possibly damaging Het
Spata31f1a G T 4: 42,848,424 (GRCm39) T1244K probably damaging Het
Susd4 A G 1: 182,686,128 (GRCm39) H226R probably benign Het
Tmem151b T C 17: 45,856,831 (GRCm39) Y203C probably damaging Het
Tmppe T C 9: 114,233,968 (GRCm39) V89A possibly damaging Het
Trappc6b A T 12: 59,094,907 (GRCm39) probably null Het
Ube4b A T 4: 149,445,751 (GRCm39) M433K probably benign Het
Vmn1r202 A T 13: 22,685,540 (GRCm39) D292E possibly damaging Het
Vmn1r22 A G 6: 57,877,704 (GRCm39) M91T probably benign Het
Vmn1r43 T C 6: 89,846,683 (GRCm39) I268V probably benign Het
Vmn1r49 T A 6: 90,049,764 (GRCm39) R79S probably benign Het
Vmn2r14 T A 5: 109,366,913 (GRCm39) K436* probably null Het
Wdr72 A G 9: 74,117,444 (GRCm39) S719G probably damaging Het
Zfp526 T C 7: 24,924,967 (GRCm39) F409L probably benign Het
Zfp804b A C 5: 6,821,323 (GRCm39) L580R possibly damaging Het
Zfp977 T C 7: 42,230,070 (GRCm39) T152A probably benign Het
Zyx T A 6: 42,332,966 (GRCm39) V372E possibly 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
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'- TACATCTTCACCAGAGAGCAGCCG -3'
(R):5'- CACCTAGAGCAGTGCTTCAGTGAAC -3'

Sequencing Primer
(F):5'- GGTGAGCGTCTTGCAGC -3'
(R):5'- AGTCTAAGCGACTCTGGAAGTTC -3'
Posted On 2014-05-09