Incidental Mutation 'R4904:Tbx20'
ID378038
Institutional Source Beutler Lab
Gene Symbol Tbx20
Ensembl Gene ENSMUSG00000031965
Gene NameT-box 20
SynonymsTbx12, 9430010M06Rik
MMRRC Submission 042507-MU
Accession Numbers
Is this an essential gene? Essential (E-score: 1.000) question?
Stock #R4904 (G1)
Quality Score225
Status Not validated
Chromosome9
Chromosomal Location24718138-24774303 bp(-) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) T to C at 24758833 bp
ZygosityHeterozygous
Amino Acid Change Lysine to Glutamic Acid at position 235 (K235E)
Ref Sequence ENSEMBL: ENSMUSP00000126318 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000052946] [ENSMUST00000166018]
Predicted Effect probably damaging
Transcript: ENSMUST00000052946
AA Change: K235E

PolyPhen 2 Score 0.978 (Sensitivity: 0.76; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000052591
Gene: ENSMUSG00000031965
AA Change: K235E

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: K235E

PolyPhen 2 Score 0.978 (Sensitivity: 0.76; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000126318
Gene: ENSMUSG00000031965
AA Change: K235E

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
AA Change: K63E

PolyPhen 2 Score 0.343 (Sensitivity: 0.90; Specificity: 0.89)
Predicted Effect noncoding transcript
Transcript: ENSMUST00000216564
Predicted Effect noncoding transcript
Transcript: ENSMUST00000217597
Coding Region Coverage
  • 1x: 99.0%
  • 3x: 98.2%
  • 10x: 95.9%
  • 20x: 91.1%
Validation Efficiency 94% (82/87)
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: 68 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adgrb2 T G 4: 130,012,539 I920S possibly damaging Het
Afap1l1 A G 18: 61,738,715 I556T probably benign Het
Ankfy1 C A 11: 72,752,105 H665N probably benign Het
Aqp9 A C 9: 71,162,403 probably benign Het
Arhgap21 A G 2: 20,850,061 S1497P probably benign Het
Armc7 A G 11: 115,488,974 D166G probably damaging Het
Arrdc1 C A 2: 24,926,664 V167F possibly damaging Het
AW822073 T A 10: 58,223,487 R482* probably null Het
Col6a3 A T 1: 90,801,442 I1259N probably damaging Het
Coq8a C T 1: 180,178,603 R207Q probably damaging Het
Cybb C G X: 9,450,750 D246H probably benign Het
Dcbld1 C T 10: 52,319,970 Q425* probably null Het
Def8 A G 8: 123,461,480 N445D probably damaging Het
Dicer1 C T 12: 104,713,066 V551I probably benign Het
Dst A T 1: 34,169,798 T800S probably damaging Het
Dtl A T 1: 191,568,345 C136S probably damaging Het
Duox1 T A 2: 122,320,864 Y310N probably damaging Het
Ebf1 T C 11: 44,869,169 F211S probably damaging Het
Gm44501 A T 17: 40,578,993 I133F possibly damaging Het
Gm6625 T C 8: 89,146,751 noncoding transcript Het
Golgb1 A T 16: 36,893,386 D243V probably damaging Het
Gprc5c G T 11: 114,864,267 V257L possibly damaging Het
Gtf2a1l G A 17: 88,690,043 probably null Het
Herc2 T C 7: 56,157,486 F2471L probably damaging Het
Hfe A T 13: 23,708,054 I109N probably damaging Het
Hrg A G 16: 22,951,250 E43G probably benign Het
Hspa1a T C 17: 34,970,451 D492G probably damaging Het
Itgb8 T C 12: 119,170,871 D487G probably benign Het
Jag1 A G 2: 137,087,142 V798A probably damaging Het
Kcnq5 A G 1: 21,424,100 V501A probably damaging Het
Kntc1 T C 5: 123,778,333 V743A possibly damaging Het
Ly86 G T 13: 37,415,520 V126F possibly damaging Het
Med26 A T 8: 72,496,847 L136H probably damaging Het
Mpp3 T C 11: 102,000,587 D575G probably benign Het
Myoc G A 1: 162,639,425 M54I probably benign Het
Nlrp1c-ps A G 11: 71,242,628 noncoding transcript Het
Olfr111 A G 17: 37,530,631 Y218C probably damaging Het
Olfr1418 C T 19: 11,855,867 V29M possibly damaging Het
Olfr574 A G 7: 102,949,065 Y190C probably damaging Het
Pak7 A T 2: 136,083,347 D678E probably benign Het
Pcdhb12 T C 18: 37,437,856 V685A possibly damaging Het
Pcdhga2 A G 18: 37,669,879 T259A possibly damaging Het
Pde6a A T 18: 61,265,034 M702L probably benign Het
Pigq A G 17: 25,931,060 probably benign Het
Polrmt A G 10: 79,746,551 M1T probably null Het
Ptch1 A C 13: 63,523,004 I904S probably damaging Het
Rflnb A T 11: 76,022,138 C141* probably null Het
Rilpl1 C A 5: 124,514,744 probably null Het
Rpgrip1 T C 14: 52,121,087 S217P possibly damaging Het
Rpgrip1 A T 14: 52,160,129 I1292F probably damaging Het
Sema3a A C 5: 13,581,098 Y534S probably damaging Het
Sez6 A G 11: 77,975,254 Y736C probably damaging Het
Shank1 G T 7: 44,334,040 probably benign Het
Slc45a4 G A 15: 73,586,842 S294F probably benign Het
Slc9a8 A G 2: 167,471,396 I393V possibly damaging Het
Sod1 T A 16: 90,222,844 F46Y probably damaging Het
Sult1b1 T C 5: 87,535,053 D11G probably benign Het
Syn3 T G 10: 86,467,086 K68N possibly damaging Het
Taar8c C T 10: 24,101,249 V222I probably benign Het
Tcaf3 C A 6: 42,593,997 E274* probably null Het
Tll1 A T 8: 64,070,199 M493K probably benign Het
Tmem236 T A 2: 14,195,992 S123T probably benign Het
Trim33 T C 3: 103,331,647 V647A possibly damaging Het
Tspear T A 10: 77,869,655 Y296N possibly damaging Het
Vps13d T C 4: 145,155,445 K1187E probably damaging Het
Xpot C T 10: 121,617,178 V52I probably benign Het
Zdhhc3 A T 9: 123,100,387 V61E probably damaging Het
Zfp955a A T 17: 33,242,188 C323* probably null Het
Other mutations in Tbx20
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00332:Tbx20 APN 9 24758748 missense probably damaging 1.00
IGL00572:Tbx20 APN 9 24725688 missense probably benign
IGL01016:Tbx20 APN 9 24750321 missense probably damaging 1.00
IGL01317:Tbx20 APN 9 24769755 missense probably damaging 1.00
IGL02643:Tbx20 APN 9 24773713 unclassified probably benign
IGL02690:Tbx20 APN 9 24773737 missense probably benign 0.27
R0853:Tbx20 UTSW 9 24725612 missense probably benign 0.05
R0855:Tbx20 UTSW 9 24725612 missense probably benign 0.05
R0856:Tbx20 UTSW 9 24725612 missense probably benign 0.05
R1781:Tbx20 UTSW 9 24725499 missense probably benign 0.00
R1840:Tbx20 UTSW 9 24725676 missense probably benign 0.22
R1981:Tbx20 UTSW 9 24770913 missense possibly damaging 0.85
R2063:Tbx20 UTSW 9 24769771 nonsense probably null
R2357:Tbx20 UTSW 9 24769776 missense possibly damaging 0.56
R4166:Tbx20 UTSW 9 24769744 missense probably damaging 1.00
R4790:Tbx20 UTSW 9 24725714 missense probably benign 0.34
R5436:Tbx20 UTSW 9 24769720 missense probably damaging 1.00
R5799:Tbx20 UTSW 9 24725520 nonsense probably null
R5898:Tbx20 UTSW 9 24758859 missense probably damaging 1.00
R6914:Tbx20 UTSW 9 24725483 missense probably benign 0.19
R6962:Tbx20 UTSW 9 24769740 missense probably damaging 1.00
R7556:Tbx20 UTSW 9 24750277 intron probably null
R7731:Tbx20 UTSW 9 24770697 missense probably damaging 1.00
R7741:Tbx20 UTSW 9 24740285 utr 3 prime probably null
R7832:Tbx20 UTSW 9 24773812 missense probably damaging 1.00
R7915:Tbx20 UTSW 9 24773812 missense probably damaging 1.00
R8110:Tbx20 UTSW 9 24725525 missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- CCAGAGCAGCTTCTGTTTTGAG -3'
(R):5'- GCCCTCATCATTTTAGAAGGC -3'

Sequencing Primer
(F):5'- AGTGCTGGAAAACCCTTGTG -3'
(R):5'- CCTCATCATTTTAGAAGGCAGCTTG -3'
Posted On2016-04-15