Incidental Mutation 'R1478:Tnnt2'
ID 165595
Institutional Source Beutler Lab
Gene Symbol Tnnt2
Ensembl Gene ENSMUSG00000026414
Gene Name troponin T2, cardiac
Synonyms cardiac TnT, cTnT, Tnt
MMRRC Submission 039531-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R1478 (G1)
Quality Score 211
Status Not validated
Chromosome 1
Chromosomal Location 135764092-135779998 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 135775764 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Threonine to Alanine at position 107 (T107A)
Ref Sequence ENSEMBL: ENSMUSP00000140282 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000027671] [ENSMUST00000112085] [ENSMUST00000112086] [ENSMUST00000112087] [ENSMUST00000178204] [ENSMUST00000178854] [ENSMUST00000179863] [ENSMUST00000189826] [ENSMUST00000188028] [ENSMUST00000190451] [ENSMUST00000189355] [ENSMUST00000189732]
AlphaFold P50752
Predicted Effect probably benign
Transcript: ENSMUST00000027671
AA Change: T107A

PolyPhen 2 Score 0.010 (Sensitivity: 0.96; Specificity: 0.77)
SMART Domains Protein: ENSMUSP00000027671
Gene: ENSMUSG00000026414
AA Change: T107A

DomainStartEndE-ValueType
coiled coil region 1 31 N/A INTRINSIC
Pfam:Troponin 96 234 1e-33 PFAM
Pfam:Troponin 226 289 1.2e-9 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000112085
AA Change: T111A

PolyPhen 2 Score 0.011 (Sensitivity: 0.96; Specificity: 0.78)
SMART Domains Protein: ENSMUSP00000107715
Gene: ENSMUSG00000026414
AA Change: T111A

DomainStartEndE-ValueType
low complexity region 5 17 N/A INTRINSIC
low complexity region 20 54 N/A INTRINSIC
Pfam:Troponin 100 238 2.4e-33 PFAM
Pfam:Troponin 230 293 2.7e-9 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000112086
AA Change: T117A

PolyPhen 2 Score 0.005 (Sensitivity: 0.97; Specificity: 0.74)
SMART Domains Protein: ENSMUSP00000107716
Gene: ENSMUSG00000026414
AA Change: T117A

DomainStartEndE-ValueType
low complexity region 3 58 N/A INTRINSIC
Pfam:Troponin 106 244 2.5e-33 PFAM
Pfam:Troponin 236 299 2.8e-9 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000112087
AA Change: T117A

PolyPhen 2 Score 0.013 (Sensitivity: 0.96; Specificity: 0.78)
SMART Domains Protein: ENSMUSP00000107717
Gene: ENSMUSG00000026414
AA Change: T117A

DomainStartEndE-ValueType
coiled coil region 1 37 N/A INTRINSIC
Pfam:Troponin 106 250 1.1e-38 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000178204
AA Change: T121A

PolyPhen 2 Score 0.054 (Sensitivity: 0.94; Specificity: 0.84)
SMART Domains Protein: ENSMUSP00000137579
Gene: ENSMUSG00000026414
AA Change: T121A

DomainStartEndE-ValueType
coiled coil region 1 38 N/A INTRINSIC
Pfam:Troponin 110 245 3.8e-34 PFAM
Pfam:Troponin 238 300 4.3e-9 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000178854
AA Change: T111A

PolyPhen 2 Score 0.010 (Sensitivity: 0.96; Specificity: 0.77)
SMART Domains Protein: ENSMUSP00000136265
Gene: ENSMUSG00000026414
AA Change: T111A

DomainStartEndE-ValueType
coiled coil region 1 35 N/A INTRINSIC
Pfam:Troponin 100 244 1.7e-39 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000179863
AA Change: T121A

PolyPhen 2 Score 0.011 (Sensitivity: 0.96; Specificity: 0.78)
SMART Domains Protein: ENSMUSP00000137093
Gene: ENSMUSG00000026414
AA Change: T121A

DomainStartEndE-ValueType
coiled coil region 1 41 N/A INTRINSIC
Pfam:Troponin 110 251 3e-39 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000189826
AA Change: T121A

PolyPhen 2 Score 0.062 (Sensitivity: 0.94; Specificity: 0.84)
SMART Domains Protein: ENSMUSP00000140807
Gene: ENSMUSG00000026414
AA Change: T121A

DomainStartEndE-ValueType
coiled coil region 1 41 N/A INTRINSIC
Pfam:Troponin 110 201 1.7e-20 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000188028
AA Change: T121A

PolyPhen 2 Score 0.011 (Sensitivity: 0.96; Specificity: 0.78)
SMART Domains Protein: ENSMUSP00000140941
Gene: ENSMUSG00000026414
AA Change: T121A

DomainStartEndE-ValueType
coiled coil region 1 41 N/A INTRINSIC
Pfam:Troponin 110 251 3e-39 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000190451
AA Change: T107A

PolyPhen 2 Score 0.398 (Sensitivity: 0.89; Specificity: 0.89)
SMART Domains Protein: ENSMUSP00000140282
Gene: ENSMUSG00000026414
AA Change: T107A

DomainStartEndE-ValueType
coiled coil region 1 31 N/A INTRINSIC
PDB:2Z5H|T 85 114 3e-7 PDB
Predicted Effect probably benign
Transcript: ENSMUST00000189355
AA Change: T107A

PolyPhen 2 Score 0.010 (Sensitivity: 0.96; Specificity: 0.77)
SMART Domains Protein: ENSMUSP00000139919
Gene: ENSMUSG00000026414
AA Change: T107A

DomainStartEndE-ValueType
coiled coil region 1 31 N/A INTRINSIC
Pfam:Troponin 96 240 1.6e-39 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000189732
AA Change: T111A

PolyPhen 2 Score 0.010 (Sensitivity: 0.96; Specificity: 0.77)
SMART Domains Protein: ENSMUSP00000139669
Gene: ENSMUSG00000026414
AA Change: T111A

DomainStartEndE-ValueType
coiled coil region 1 35 N/A INTRINSIC
Pfam:Troponin 100 244 1.7e-39 PFAM
Predicted Effect noncoding transcript
Transcript: ENSMUST00000188098
Predicted Effect noncoding transcript
Transcript: ENSMUST00000186225
Coding Region Coverage
  • 1x: 99.1%
  • 3x: 98.2%
  • 10x: 95.7%
  • 20x: 90.6%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The protein encoded by this gene is the tropomyosin-binding subunit of the troponin complex, which is located on the thin filament of striated muscles and regulates muscle contraction in response to alterations in intracellular calcium ion concentration. Mutations in this gene have been associated with familial hypertrophic cardiomyopathy as well as with dilated cardiomyopathy. Transcripts for this gene undergo alternative splicing that results in many tissue-specific isoforms, however, the full-length nature of some of these variants has not yet been determined. [provided by RefSeq, Jul 2008]
PHENOTYPE: Mice homozygous for a null allele exhibit embryonic lethality during and prior to organogenesis and abnormal heart development. Mice homozygous for an allele that lacks the lysine residue at position 210 exhibit dilated cardiomyopathy. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 63 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Aacs T A 5: 125,580,287 (GRCm39) I204N possibly damaging Het
Acaca A G 11: 84,263,453 (GRCm39) T2025A probably damaging Het
B4galt3 C T 1: 171,103,938 (GRCm39) R170C probably benign Het
BC028528 T C 3: 95,799,271 (GRCm39) probably null Het
Ccdc73 A T 2: 104,737,955 (GRCm39) Q17L possibly damaging Het
Ccdc73 A G 2: 104,745,012 (GRCm39) T50A possibly damaging Het
Ccdc83 T C 7: 89,908,677 (GRCm39) D19G probably damaging Het
Ccn6 G A 10: 39,029,239 (GRCm39) R230W probably damaging Het
Cct8l1 T C 5: 25,722,767 (GRCm39) V494A probably benign Het
Chd1 T C 17: 15,959,769 (GRCm39) F663L probably damaging Het
Chn2 A T 6: 54,270,065 (GRCm39) E319V probably damaging Het
Cnnm1 T C 19: 43,460,295 (GRCm39) V679A probably damaging Het
Cntn6 C T 6: 104,753,389 (GRCm39) T447I probably benign Het
Cyp3a11 G T 5: 145,795,581 (GRCm39) L457I probably benign Het
Dera T A 6: 137,807,193 (GRCm39) S214T possibly damaging Het
Dmtf1 A G 5: 9,171,404 (GRCm39) V501A possibly damaging Het
Dnpep A G 1: 75,292,671 (GRCm39) V114A probably damaging Het
Dscam C T 16: 96,592,110 (GRCm39) V722M probably benign Het
Dsp A G 13: 38,365,114 (GRCm39) N499S probably damaging Het
Ecd A T 14: 20,396,725 (GRCm39) Y53* probably null Het
Esyt3 T C 9: 99,200,119 (GRCm39) T692A probably benign Het
Fat1 T A 8: 45,478,659 (GRCm39) N2545K probably damaging Het
Fndc3a A G 14: 72,795,072 (GRCm39) probably null Het
Fscn3 A G 6: 28,430,567 (GRCm39) M246V probably benign Het
Gde1 G T 7: 118,291,007 (GRCm39) T106K probably benign Het
Gjc2 A G 11: 59,068,434 (GRCm39) I16T possibly damaging Het
Hacd4 A T 4: 88,341,260 (GRCm39) M168K probably damaging Het
Hmx3 A G 7: 131,145,826 (GRCm39) E178G probably damaging Het
Htt A G 5: 34,961,171 (GRCm39) Y266C probably damaging Het
Jkampl A T 6: 73,446,039 (GRCm39) L170Q probably damaging Het
Kif27 G T 13: 58,451,359 (GRCm39) R990S probably damaging Het
Krtap22-2 A T 16: 88,807,534 (GRCm39) Y21* probably null Het
Lrrc41 T A 4: 115,952,405 (GRCm39) L661* probably null Het
Lrrc63 T C 14: 75,363,424 (GRCm39) T236A probably benign Het
Mmp13 T C 9: 7,272,892 (GRCm39) L84P probably damaging Het
Myh8 T C 11: 67,183,551 (GRCm39) I754T probably benign Het
Neb A C 2: 52,065,619 (GRCm39) D5961E probably benign Het
Nlrx1 T C 9: 44,175,374 (GRCm39) H134R probably benign Het
Npepps A T 11: 97,117,673 (GRCm39) M542K probably benign Het
Nup160 C T 2: 90,509,743 (GRCm39) probably benign Het
Or3a1c T A 11: 74,045,963 (GRCm39) probably null Het
Or8g33 T A 9: 39,337,888 (GRCm39) T160S possibly damaging Het
Pikfyve T C 1: 65,302,136 (GRCm39) probably null Het
Ppp6r1 A T 7: 4,643,377 (GRCm39) probably null Het
Prss33 A G 17: 24,054,072 (GRCm39) W45R probably damaging Het
Ptprf A T 4: 118,069,302 (GRCm39) Y980* probably null Het
Qrich1 T C 9: 108,436,531 (GRCm39) V743A probably benign Het
Rev3l G A 10: 39,659,329 (GRCm39) probably null Het
Samd9l A T 6: 3,376,369 (GRCm39) N297K probably benign Het
Sap130 A G 18: 31,813,527 (GRCm39) H528R possibly damaging Het
Slc9b2 T C 3: 135,031,863 (GRCm39) V241A probably benign Het
Snx14 A T 9: 88,276,581 (GRCm39) V577E probably benign Het
Srrm2 T C 17: 24,034,876 (GRCm39) S507P probably benign Het
Stat2 A G 10: 128,117,969 (GRCm39) probably null Het
Susd5 T C 9: 113,925,752 (GRCm39) F545S probably benign Het
Tafa2 T A 10: 123,429,401 (GRCm39) M5K possibly damaging Het
Trappc6b T A 12: 59,094,953 (GRCm39) I41F possibly damaging Het
Ttn T A 2: 76,682,417 (GRCm39) probably benign Het
Vmn1r88 A C 7: 12,911,878 (GRCm39) D78A probably damaging Het
Xpc C T 6: 91,485,510 (GRCm39) D122N possibly damaging Het
Xpo1 C T 11: 23,241,623 (GRCm39) A890V probably damaging Het
Zfp493 A G 13: 67,934,680 (GRCm39) H211R probably damaging Het
Zfp958 A T 8: 4,679,190 (GRCm39) H405L probably damaging Het
Other mutations in Tnnt2
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00858:Tnnt2 APN 1 135,779,440 (GRCm39) missense probably damaging 1.00
IGL00885:Tnnt2 APN 1 135,774,502 (GRCm39) splice site probably benign
IGL02223:Tnnt2 APN 1 135,769,753 (GRCm39) intron probably benign
IGL03094:Tnnt2 APN 1 135,777,200 (GRCm39) critical splice donor site probably null
R0827:Tnnt2 UTSW 1 135,771,534 (GRCm39) intron probably benign
R1469:Tnnt2 UTSW 1 135,779,793 (GRCm39) missense possibly damaging 0.83
R1469:Tnnt2 UTSW 1 135,779,793 (GRCm39) missense possibly damaging 0.83
R1728:Tnnt2 UTSW 1 135,773,244 (GRCm39) intron probably benign
R1729:Tnnt2 UTSW 1 135,773,244 (GRCm39) intron probably benign
R1730:Tnnt2 UTSW 1 135,773,244 (GRCm39) intron probably benign
R1739:Tnnt2 UTSW 1 135,773,244 (GRCm39) intron probably benign
R1762:Tnnt2 UTSW 1 135,773,244 (GRCm39) intron probably benign
R1783:Tnnt2 UTSW 1 135,773,244 (GRCm39) intron probably benign
R1784:Tnnt2 UTSW 1 135,773,244 (GRCm39) intron probably benign
R1785:Tnnt2 UTSW 1 135,773,244 (GRCm39) intron probably benign
R1891:Tnnt2 UTSW 1 135,768,597 (GRCm39) critical splice acceptor site probably null
R2049:Tnnt2 UTSW 1 135,774,499 (GRCm39) splice site probably benign
R2104:Tnnt2 UTSW 1 135,771,547 (GRCm39) intron probably benign
R2130:Tnnt2 UTSW 1 135,774,499 (GRCm39) splice site probably benign
R2141:Tnnt2 UTSW 1 135,774,499 (GRCm39) splice site probably benign
R2225:Tnnt2 UTSW 1 135,771,529 (GRCm39) intron probably benign
R2227:Tnnt2 UTSW 1 135,771,529 (GRCm39) intron probably benign
R2504:Tnnt2 UTSW 1 135,779,803 (GRCm39) missense probably damaging 0.96
R4883:Tnnt2 UTSW 1 135,775,496 (GRCm39) nonsense probably null
R5963:Tnnt2 UTSW 1 135,771,600 (GRCm39) intron probably benign
R6082:Tnnt2 UTSW 1 135,777,172 (GRCm39) missense probably benign 0.30
R6261:Tnnt2 UTSW 1 135,778,292 (GRCm39) splice site probably null
R7208:Tnnt2 UTSW 1 135,778,114 (GRCm39) splice site probably null
R7241:Tnnt2 UTSW 1 135,779,444 (GRCm39) missense probably damaging 1.00
R9038:Tnnt2 UTSW 1 135,774,484 (GRCm39) missense possibly damaging 0.78
R9140:Tnnt2 UTSW 1 135,768,635 (GRCm39) missense
R9515:Tnnt2 UTSW 1 135,768,640 (GRCm39) missense unknown
R9530:Tnnt2 UTSW 1 135,779,793 (GRCm39) missense possibly damaging 0.83
Predicted Primers PCR Primer
(F):5'- CAGGAACGCATAGTCCCTCATGTC -3'
(R):5'- TCCGCGAGAGCCAGAACTTATCAG -3'

Sequencing Primer
(F):5'- GCTTTCATACAAGTGACAGAGTTCC -3'
(R):5'- CAGAACTTATCAGGGTCAGTTCC -3'
Posted On 2014-03-28