Incidental Mutation 'R4166:Tbx20'
ID 320585
Institutional Source Beutler Lab
Gene Symbol Tbx20
Ensembl Gene ENSMUSG00000031965
Gene Name T-box 20
Synonyms Tbx12, 9430010M06Rik
MMRRC Submission 041639-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R4166 (G1)
Quality Score 225
Status Validated
Chromosome 9
Chromosomal Location 24632108-24685580 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to A at 24681040 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Isoleucine to Phenylalanine at position 151 (I151F)
Ref Sequence ENSEMBL: ENSMUSP00000126318 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000052946] [ENSMUST00000166018]
AlphaFold Q9ES03
Predicted Effect probably damaging
Transcript: ENSMUST00000052946
AA Change: I151F

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000052591
Gene: ENSMUSG00000031965
AA Change: I151F

DomainStartEndE-ValueType
low complexity region 68 78 N/A INTRINSIC
low complexity region 81 95 N/A INTRINSIC
TBOX 98 292 1.08e-122 SMART
low complexity region 339 353 N/A INTRINSIC
Predicted Effect probably damaging
Transcript: ENSMUST00000166018
AA Change: I151F

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000126318
Gene: ENSMUSG00000031965
AA Change: I151F

DomainStartEndE-ValueType
low complexity region 68 78 N/A INTRINSIC
low complexity region 81 95 N/A INTRINSIC
TBOX 98 292 1.08e-122 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000215802
Predicted Effect noncoding transcript
Transcript: ENSMUST00000216564
Predicted Effect noncoding transcript
Transcript: ENSMUST00000217597
Meta Mutation Damage Score 0.4863 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.6%
  • 10x: 97.4%
  • 20x: 95.8%
Validation Efficiency 100% (56/56)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a T-box family member. The T-box family members share a common DNA binding domain, termed the T-box, and they are transcription factors involved in the regulation of developmental processes. This gene is essential for heart development. Mutations in this gene are associated with diverse cardiac pathologies, including defects in septation, valvulogenesis and cardiomyopathy. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2009]
PHENOTYPE: Homozygous null mice display embryonic lethality, impaired cardiac looping, a small hourglass shaped heart, and decreased cardiomyocyte proliferation. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 52 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
3425401B19Rik T C 14: 32,382,912 (GRCm39) T1018A possibly damaging Het
Aak1 T A 6: 86,827,044 (GRCm39) F4I probably damaging Het
Adamts8 G T 9: 30,862,684 (GRCm39) E296D probably benign Het
Ankrd35 T A 3: 96,586,471 (GRCm39) probably null Het
Arhgap20 G A 9: 51,738,135 (GRCm39) probably null Het
Bhmt T A 13: 93,762,007 (GRCm39) probably benign Het
Cacna1b C A 2: 24,567,923 (GRCm39) R1055L probably benign Het
Cdk5r1 A G 11: 80,369,035 (GRCm39) Y234C probably damaging Het
Cdx2 G T 5: 147,243,539 (GRCm39) A85D possibly damaging Het
Cenpe G A 3: 134,949,479 (GRCm39) G88D probably damaging Het
Cfap300 A T 9: 8,026,071 (GRCm39) L167Q probably damaging Het
Dennd5a A C 7: 109,526,032 (GRCm39) probably null Het
Erich6 G A 3: 58,526,229 (GRCm39) A591V probably damaging Het
Espl1 A G 15: 102,221,424 (GRCm39) I944V probably damaging Het
Fbln5 A G 12: 101,723,618 (GRCm39) V374A probably damaging Het
Fmn1 G A 2: 113,467,080 (GRCm39) S1327N probably benign Het
Fnip2 A T 3: 79,369,442 (GRCm39) V1081E probably damaging Het
Gm5174 A G 10: 86,492,797 (GRCm39) noncoding transcript Het
Gpaa1 A C 15: 76,216,667 (GRCm39) probably benign Het
Grina T A 15: 76,133,529 (GRCm39) L334Q probably damaging Het
Gulp1 T A 1: 44,747,829 (GRCm39) Y27* probably null Het
Kdm3b A T 18: 34,928,797 (GRCm39) I183F probably benign Het
Loxhd1 A T 18: 77,460,025 (GRCm39) I758F probably damaging Het
Msi2 T C 11: 88,237,914 (GRCm39) H346R probably benign Het
Naip6 T A 13: 100,452,657 (GRCm39) I135F probably benign Het
Npr3 T G 15: 11,848,599 (GRCm39) E202A probably benign Het
Nsun4 A T 4: 115,891,248 (GRCm39) L377Q probably damaging Het
Oog2 A C 4: 143,921,411 (GRCm39) H107P probably damaging Het
Or14c40 C A 7: 86,313,602 (GRCm39) T244N probably damaging Het
Otof A G 5: 30,539,762 (GRCm39) L1032P probably damaging Het
Pcdh9 T A 14: 94,124,956 (GRCm39) R405* probably null Het
Pcdhb19 T A 18: 37,632,243 (GRCm39) N679K probably benign Het
Pigr G A 1: 130,769,554 (GRCm39) D122N probably benign Het
Prol1 A T 5: 88,476,530 (GRCm39) I307F unknown Het
Pycr1 T C 11: 120,532,949 (GRCm39) I104V probably benign Het
Ralgapa1 C T 12: 55,687,429 (GRCm39) R2019Q probably damaging Het
Rb1cc1 T C 1: 6,335,887 (GRCm39) probably benign Het
Skint11 C A 4: 114,101,856 (GRCm39) Q99K probably benign Het
Skint3 A G 4: 112,112,832 (GRCm39) I147M possibly damaging Het
Slc22a14 T G 9: 119,007,498 (GRCm39) M304L probably benign Het
Slc22a14 T C 9: 119,008,934 (GRCm39) N178S possibly damaging Het
Slc2a1 T G 4: 118,990,313 (GRCm39) I179S probably damaging Het
Slco2b1 G T 7: 99,309,333 (GRCm39) T666N probably benign Het
Smap1 T C 1: 23,887,506 (GRCm39) M258V probably benign Het
Smr3a A T 5: 88,156,013 (GRCm39) probably benign Het
Stt3b T A 9: 115,083,969 (GRCm39) E402D probably damaging Het
Sync T C 4: 129,200,535 (GRCm39) probably benign Het
Tomm22 C A 15: 79,555,206 (GRCm39) probably benign Het
Trank1 C A 9: 111,202,592 (GRCm39) Y1652* probably null Het
Trim34a T A 7: 103,910,223 (GRCm39) C342S probably benign Het
Txnl4a T A 18: 80,265,471 (GRCm39) M112K probably benign Het
Zfp146 A G 7: 29,861,865 (GRCm39) V59A possibly damaging Het
Other mutations in Tbx20
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00332:Tbx20 APN 9 24,670,044 (GRCm39) missense probably damaging 1.00
IGL00572:Tbx20 APN 9 24,636,984 (GRCm39) missense probably benign
IGL01016:Tbx20 APN 9 24,661,617 (GRCm39) missense probably damaging 1.00
IGL01317:Tbx20 APN 9 24,681,051 (GRCm39) missense probably damaging 1.00
IGL02643:Tbx20 APN 9 24,685,009 (GRCm39) unclassified probably benign
IGL02690:Tbx20 APN 9 24,685,033 (GRCm39) missense probably benign 0.27
BB006:Tbx20 UTSW 9 24,637,059 (GRCm39) missense possibly damaging 0.86
BB016:Tbx20 UTSW 9 24,637,059 (GRCm39) missense possibly damaging 0.86
R0853:Tbx20 UTSW 9 24,636,908 (GRCm39) missense probably benign 0.05
R0855:Tbx20 UTSW 9 24,636,908 (GRCm39) missense probably benign 0.05
R0856:Tbx20 UTSW 9 24,636,908 (GRCm39) missense probably benign 0.05
R1781:Tbx20 UTSW 9 24,636,795 (GRCm39) missense probably benign 0.00
R1840:Tbx20 UTSW 9 24,636,972 (GRCm39) missense probably benign 0.22
R1981:Tbx20 UTSW 9 24,682,209 (GRCm39) missense possibly damaging 0.85
R2063:Tbx20 UTSW 9 24,681,067 (GRCm39) nonsense probably null
R2357:Tbx20 UTSW 9 24,681,072 (GRCm39) missense possibly damaging 0.56
R4790:Tbx20 UTSW 9 24,637,010 (GRCm39) missense probably benign 0.34
R4904:Tbx20 UTSW 9 24,670,129 (GRCm39) missense probably damaging 0.98
R5436:Tbx20 UTSW 9 24,681,016 (GRCm39) missense probably damaging 1.00
R5799:Tbx20 UTSW 9 24,636,816 (GRCm39) nonsense probably null
R5898:Tbx20 UTSW 9 24,670,155 (GRCm39) missense probably damaging 1.00
R6914:Tbx20 UTSW 9 24,636,779 (GRCm39) missense probably benign 0.19
R6962:Tbx20 UTSW 9 24,681,036 (GRCm39) missense probably damaging 1.00
R7556:Tbx20 UTSW 9 24,661,573 (GRCm39) splice site probably null
R7731:Tbx20 UTSW 9 24,681,993 (GRCm39) missense probably damaging 1.00
R7741:Tbx20 UTSW 9 24,651,581 (GRCm39) splice site probably null
R7832:Tbx20 UTSW 9 24,685,108 (GRCm39) missense probably damaging 1.00
R7929:Tbx20 UTSW 9 24,637,059 (GRCm39) missense possibly damaging 0.86
R7982:Tbx20 UTSW 9 24,685,220 (GRCm39) unclassified probably benign
R8110:Tbx20 UTSW 9 24,636,821 (GRCm39) missense probably damaging 1.00
R8974:Tbx20 UTSW 9 24,681,082 (GRCm39) missense probably damaging 1.00
R9058:Tbx20 UTSW 9 24,681,019 (GRCm39) missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- GGCCAGAATCCGATGTTTTAAAAC -3'
(R):5'- AAAGTCGTGTCTCTGTGGGC -3'

Sequencing Primer
(F):5'- CAACTCGCTTAAAATTCCCTTAAATC -3'
(R):5'- CTGTGGGCACATCTTTCATAAAC -3'
Posted On 2015-06-12