Incidental Mutation 'R1695:Sptb'
ID 192157
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 039728-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.858) question?
Stock # R1695 (G1)
Quality Score 225
Status Not validated
Chromosome 12
Chromosomal Location 76627262-76757321 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) C to A at 76667641 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Valine to Leucine at position 819 (V819L)
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: V819L

PolyPhen 2 Score 0.046 (Sensitivity: 0.94; Specificity: 0.83)
SMART Domains Protein: ENSMUSP00000021458
Gene: ENSMUSG00000021061
AA Change: V819L

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: V819L

PolyPhen 2 Score 0.105 (Sensitivity: 0.93; Specificity: 0.86)
SMART Domains Protein: ENSMUSP00000129782
Gene: ENSMUSG00000021061
AA Change: V819L

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: 93.2%
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: 83 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adam1b T A 5: 121,638,970 (GRCm39) T692S probably benign Het
Adgrf3 T A 5: 30,408,553 (GRCm39) N75I probably benign Het
Adgrg5 A G 8: 95,664,373 (GRCm39) M328V probably damaging Het
Adk A G 14: 21,431,668 (GRCm39) D286G probably benign Het
Ankrd28 T A 14: 31,429,201 (GRCm39) D917V probably damaging Het
Appl2 C T 10: 83,457,446 (GRCm39) D141N probably damaging Het
Arfgef2 T C 2: 166,706,632 (GRCm39) V952A probably damaging Het
Arpc2 T A 1: 74,287,391 (GRCm39) H70Q probably damaging Het
Bpifa5 T C 2: 154,009,580 (GRCm39) L261P probably damaging Het
Brca1 G T 11: 101,415,281 (GRCm39) T951K probably damaging Het
Ccdc73 A T 2: 104,822,450 (GRCm39) S800C probably damaging Het
Cdh15 C G 8: 123,588,755 (GRCm39) D276E probably benign Het
Cfap119 A G 7: 127,186,745 (GRCm39) probably null Het
Cfap418 T A 4: 10,874,644 (GRCm39) D10E probably damaging Het
Cfh T C 1: 140,030,575 (GRCm39) I551V probably damaging Het
Chd7 T A 4: 8,833,960 (GRCm39) L1238Q probably damaging Het
Chd9 T G 8: 91,728,410 (GRCm39) F1275L probably damaging Het
Chrnb3 A G 8: 27,883,728 (GRCm39) Y155C probably damaging Het
Cltc C A 11: 86,591,886 (GRCm39) probably null Het
Ctsll3 T A 13: 60,948,791 (GRCm39) N55Y probably damaging Het
Cysltr2 T C 14: 73,267,321 (GRCm39) M130V probably benign Het
Daglb T C 5: 143,480,361 (GRCm39) M455T probably benign Het
Dbn1 A G 13: 55,624,521 (GRCm39) S343P probably benign Het
Dnah2 T A 11: 69,405,517 (GRCm39) D665V possibly damaging Het
Dusp6 T A 10: 99,099,555 (GRCm39) M1K probably null Het
Eif3m T C 2: 104,847,298 (GRCm39) E12G probably damaging Het
Epha2 T C 4: 141,033,828 (GRCm39) V29A possibly damaging Het
Farp2 T A 1: 93,488,047 (GRCm39) N91K probably damaging Het
Ferd3l C A 12: 33,978,971 (GRCm39) S161R probably benign Het
Fgd2 A T 17: 29,587,219 (GRCm39) D315V possibly damaging Het
Fhip2a T C 19: 57,367,603 (GRCm39) W337R probably damaging Het
Fstl4 T A 11: 53,056,705 (GRCm39) probably null Het
Grm5 A G 7: 87,685,311 (GRCm39) D476G possibly damaging Het
Gtf3c3 C T 1: 54,456,937 (GRCm39) A488T probably damaging Het
Hdlbp A G 1: 93,364,922 (GRCm39) L115P probably damaging Het
Hk2 T A 6: 82,721,932 (GRCm39) N136Y probably damaging Het
Hs2st1 G T 3: 144,140,415 (GRCm39) A302E probably benign Het
Htr7 T C 19: 35,947,136 (GRCm39) N293D probably benign Het
Ikbkb T A 8: 23,163,496 (GRCm39) E271D probably benign Het
Il5ra A T 6: 106,715,335 (GRCm39) Y166* probably null Het
Il9r T A 11: 32,143,227 (GRCm39) H244L probably benign Het
Itih4 T C 14: 30,613,456 (GRCm39) probably null Het
Kirrel1 C T 3: 86,996,458 (GRCm39) M380I probably null Het
Large1 A T 8: 73,544,710 (GRCm39) D689E probably damaging Het
Limk2 A G 11: 3,303,275 (GRCm39) probably null Het
Med15 A G 16: 17,540,644 (GRCm39) F34S probably damaging Het
Mprip C T 11: 59,643,357 (GRCm39) T505I probably damaging Het
Mtor T A 4: 148,623,364 (GRCm39) N2071K probably benign Het
Muc16 A G 9: 18,408,729 (GRCm39) L2522P probably damaging Het
Myd88 A T 9: 119,166,908 (GRCm39) probably null Het
Myo7a A C 7: 97,741,703 (GRCm39) F484V possibly damaging Het
Nme1 A C 11: 93,851,593 (GRCm39) L81R probably benign Het
Ntn4 T A 10: 93,569,464 (GRCm39) probably null Het
Or2y13 T C 11: 49,415,162 (GRCm39) V204A probably benign Het
Or4p19 T C 2: 88,242,444 (GRCm39) D186G probably damaging Het
Or51l4 A T 7: 103,404,131 (GRCm39) Y220* probably null Het
Otogl T G 10: 107,649,878 (GRCm39) N1159T probably damaging Het
Pabpc6 G A 17: 9,887,003 (GRCm39) T516I probably benign Het
Pcdh1 C T 18: 38,335,921 (GRCm39) R238H probably damaging Het
Pex5l T A 3: 33,008,531 (GRCm39) N151I probably benign Het
Plekha7 T C 7: 115,727,920 (GRCm39) N980S probably damaging Het
Reg4 C T 3: 98,143,677 (GRCm39) T157I probably benign Het
Rev3l G T 10: 39,700,611 (GRCm39) E1703* probably null Het
Rev3l A T 10: 39,700,612 (GRCm39) E1703V probably damaging Het
Rsf1 GCG GCGACG 7: 97,229,114 (GRCm39) probably benign Het
Saal1 T C 7: 46,342,340 (GRCm39) K368E probably damaging Het
Scn9a C T 2: 66,335,220 (GRCm39) W1245* probably null Het
Slc38a11 T A 2: 65,147,315 (GRCm39) L387F probably damaging Het
Sned1 G A 1: 93,209,376 (GRCm39) V830M possibly damaging Het
Sptbn1 T C 11: 30,086,124 (GRCm39) T1195A probably benign Het
Ssna1 C A 2: 25,162,024 (GRCm39) V57F possibly damaging Het
Stk32a G T 18: 43,446,485 (GRCm39) E312* probably null Het
Synpo A G 18: 60,736,459 (GRCm39) F496L probably benign Het
Syt15 C T 14: 33,944,858 (GRCm39) T135M probably benign Het
Tm9sf4 A G 2: 153,032,832 (GRCm39) E246G probably benign Het
Trim44 T C 2: 102,187,830 (GRCm39) M308V possibly damaging Het
Unc119b T A 5: 115,272,885 (GRCm39) K29* probably null Het
Vim T A 2: 13,584,921 (GRCm39) D367E probably benign Het
Virma T A 4: 11,494,814 (GRCm39) N38K probably damaging Het
Vmn1r228 A T 17: 20,996,560 (GRCm39) D319E possibly damaging Het
Vmn2r32 T A 7: 7,466,991 (GRCm39) I846F probably benign Het
Vps13b T C 15: 35,576,667 (GRCm39) V1025A probably benign Het
Vps13c G T 9: 67,879,357 (GRCm39) E566* probably null 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
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'- AGAACTCAATTCCTGATGCCTGCAC -3'
(R):5'- CTTCTTCCAGTTCCAGGGTGATGC -3'

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