Incidental Mutation 'R0853:Tbx20'
ID 82619
Institutional Source Beutler Lab
Gene Symbol Tbx20
Ensembl Gene ENSMUSG00000031965
Gene Name T-box 20
Synonyms Tbx12, 9430010M06Rik
MMRRC Submission 039032-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R0853 (G1)
Quality Score 225
Status Validated
Chromosome 9
Chromosomal Location 24632108-24685580 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 24636908 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Methionine to Threonine at position 393 (M393T)
Ref Sequence ENSEMBL: ENSMUSP00000052591 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000052946]
AlphaFold Q9ES03
Predicted Effect probably benign
Transcript: ENSMUST00000052946
AA Change: M393T

PolyPhen 2 Score 0.051 (Sensitivity: 0.94; Specificity: 0.83)
SMART Domains Protein: ENSMUSP00000052591
Gene: ENSMUSG00000031965
AA Change: M393T

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
Meta Mutation Damage Score 0.0590 question?
Coding Region Coverage
  • 1x: 99.3%
  • 3x: 98.7%
  • 10x: 97.1%
  • 20x: 93.9%
Validation Efficiency 93% (42/45)
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: 43 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Amotl1 G T 9: 14,504,074 (GRCm39) P378Q probably damaging Het
Angpt4 A G 2: 151,780,847 (GRCm39) E365G probably damaging Het
Asb6 G A 2: 30,717,042 (GRCm39) P61L possibly damaging Het
Atp8a2 T C 14: 60,097,719 (GRCm39) K770E probably benign Het
Atxn7 C A 14: 14,089,465 (GRCm38) probably benign Het
Cacul1 A T 19: 60,522,664 (GRCm39) I290N probably damaging Het
Ccser2 A C 14: 36,662,367 (GRCm39) S272R probably benign Het
Cfh T A 1: 140,033,228 (GRCm39) H772L probably damaging Het
Cldn6 T G 17: 23,900,438 (GRCm39) I134S probably damaging Het
Col3a1 T A 1: 45,382,484 (GRCm39) probably benign Het
Fam118a T C 15: 84,932,726 (GRCm39) F156S possibly damaging Het
Fgd4 T A 16: 16,292,251 (GRCm39) probably benign Het
Gckr G C 5: 31,462,392 (GRCm39) A242P probably damaging Het
Gcnt4 A G 13: 97,083,343 (GRCm39) D213G probably damaging Het
Hace1 T A 10: 45,524,779 (GRCm39) V237E probably damaging Het
Herc3 T C 6: 58,853,549 (GRCm39) L570P probably damaging Het
Hk1 T A 10: 62,107,495 (GRCm39) K827* probably null Het
Hyal6 T C 6: 24,734,072 (GRCm39) F2L probably benign Het
Jak2 C A 19: 29,262,326 (GRCm39) Y382* probably null Het
Kat8 C T 7: 127,524,396 (GRCm39) H425Y probably benign Het
Kcnj3 T C 2: 55,327,235 (GRCm39) F8S possibly damaging Het
Klk1 T A 7: 43,870,922 (GRCm39) probably benign Het
Klra8 T C 6: 130,095,977 (GRCm39) Y205C probably damaging Het
Kpnb1 T C 11: 97,078,237 (GRCm39) E26G probably damaging Het
Mroh2a A G 1: 88,186,386 (GRCm39) S64G probably benign Het
Naip2 T C 13: 100,298,362 (GRCm39) E558G probably benign Het
Naip2 C T 13: 100,298,368 (GRCm39) G556D probably benign Het
Nphp3 T C 9: 103,909,132 (GRCm39) S781P probably benign Het
Nqo2 A T 13: 34,163,560 (GRCm39) H73L probably benign Het
P3h3 G T 6: 124,831,896 (GRCm39) D296E probably benign Het
Pah G A 10: 87,412,080 (GRCm39) probably null Het
Pcdhb4 T G 18: 37,442,938 (GRCm39) Y749* probably null Het
Pdgfrb C A 18: 61,213,399 (GRCm39) N914K probably damaging Het
Ralyl A G 3: 14,011,566 (GRCm39) Y4C probably damaging Het
Rapgef6 T A 11: 54,559,503 (GRCm39) I1052N probably damaging Het
Sdk2 G A 11: 113,712,241 (GRCm39) T1642I probably benign Het
Siglec1 G A 2: 130,926,942 (GRCm39) T207M probably damaging Het
Taf1b T C 12: 24,564,827 (GRCm39) L148P probably benign Het
Tdp1 G A 12: 99,901,326 (GRCm39) R536H probably damaging Het
Tubgcp5 T A 7: 55,464,599 (GRCm39) probably benign Het
Vezf1 A T 11: 88,068,435 (GRCm38) probably benign Het
Vmn1r58 G T 7: 5,413,324 (GRCm39) T302K probably damaging Het
Zfp1002 A T 2: 150,097,398 (GRCm39) S38R probably benign 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
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
R4166:Tbx20 UTSW 9 24,681,040 (GRCm39) missense probably damaging 1.00
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'- TTCCTGGAGAGTCCTTGCTCCAAT -3'
(R):5'- GTCTCTCAGTTCCTGGGTATCGTCA -3'

Sequencing Primer
(F):5'- CATAGCCATTTGCACACTCTG -3'
(R):5'- AGTTCCTGGGTATCGTCATCTTC -3'
Posted On 2013-11-08