Incidental Mutation 'R4555:Sptb'
ID 341845
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
Accession Numbers
Essential gene? Probably essential (E-score: 0.858) question?
Stock # R4555 (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 C at 76659625 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Serine to Alanine at position 1092 (S1092A)
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: S1092A

PolyPhen 2 Score 0.024 (Sensitivity: 0.95; Specificity: 0.81)
SMART Domains Protein: ENSMUSP00000021458
Gene: ENSMUSG00000021061
AA Change: S1092A

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: S1092A

PolyPhen 2 Score 0.027 (Sensitivity: 0.95; Specificity: 0.81)
SMART Domains Protein: ENSMUSP00000129782
Gene: ENSMUSG00000021061
AA Change: S1092A

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: 98.6%
  • 10x: 97.3%
  • 20x: 95.2%
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: 22 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
A830005F24Rik T C 13: 48,667,937 (GRCm39) probably benign Het
Adamts16 G A 13: 70,927,637 (GRCm39) probably benign Het
Adamts17 A T 7: 66,677,641 (GRCm39) E518D probably damaging Het
Afp T G 5: 90,654,546 (GRCm39) I528S possibly damaging Het
Cul9 T C 17: 46,812,755 (GRCm39) D2407G possibly damaging Het
Cyp19a1 T C 9: 54,074,105 (GRCm39) E483G probably damaging Het
Dennd2c G A 3: 103,039,202 (GRCm39) V117I probably benign Het
Inha C T 1: 75,486,227 (GRCm39) P174L possibly damaging Het
Myo15a A G 11: 60,387,763 (GRCm39) R746G probably damaging Het
Ndufaf7 T C 17: 79,249,516 (GRCm39) S138P probably benign Het
Osmr T C 15: 6,845,201 (GRCm39) Q855R possibly damaging Het
Pip4k2a C T 2: 18,877,103 (GRCm39) D211N probably damaging Het
Pitpnm1 A G 19: 4,153,085 (GRCm39) Q135R probably benign Het
Plxna1 G T 6: 89,300,310 (GRCm39) T1591K probably damaging Het
Rdh19 T A 10: 127,686,020 (GRCm39) L44Q probably benign Het
Rom1 T C 19: 8,905,380 (GRCm39) T267A possibly damaging Het
Smad3 C T 9: 63,562,070 (GRCm39) V108I possibly damaging Het
Thap12 A G 7: 98,365,052 (GRCm39) N407D probably benign Het
Tmc5 T C 7: 118,269,956 (GRCm39) I902T probably benign Het
Ugt1a6a C T 1: 88,066,349 (GRCm39) R52* probably null Het
Usp54 C T 14: 20,611,090 (GRCm39) R1242H probably benign Het
Vps16 T C 2: 130,285,496 (GRCm39) V813A 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
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'- ATCCCAGTCAGTATCTAGGCC -3'
(R):5'- CCAGTACTTGATGGAGTCACACC -3'

Sequencing Primer
(F):5'- AGTCAGTATCTAGGCCCTCTAACCG -3'
(R):5'- TACTTGATGGAGTCACACCCTGAG -3'
Posted On 2015-09-24