Incidental Mutation 'R9038:Tnnt2'
ID 687510
Institutional Source Beutler Lab
Gene Symbol Tnnt2
Ensembl Gene ENSMUSG00000026414
Gene Name troponin T2, cardiac
Synonyms cardiac TnT, cTnT, Tnt
MMRRC Submission 068866-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R9038 (G1)
Quality Score 225.009
Status Not validated
Chromosome 1
Chromosomal Location 135764092-135779998 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) C to A at 135774484 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Proline to Histidine at position 81 (P81H)
Ref Sequence ENSEMBL: ENSMUSP00000137579 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000027671] [ENSMUST00000112085] [ENSMUST00000112086] [ENSMUST00000112087] [ENSMUST00000178204] [ENSMUST00000178854] [ENSMUST00000179863] [ENSMUST00000188028] [ENSMUST00000189355] [ENSMUST00000189732] [ENSMUST00000189826] [ENSMUST00000190451]
AlphaFold P50752
Predicted Effect possibly damaging
Transcript: ENSMUST00000027671
AA Change: P67H

PolyPhen 2 Score 0.874 (Sensitivity: 0.83; Specificity: 0.93)
SMART Domains Protein: ENSMUSP00000027671
Gene: ENSMUSG00000026414
AA Change: P67H

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 damaging
Transcript: ENSMUST00000112085
AA Change: P71H

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000107715
Gene: ENSMUSG00000026414
AA Change: P71H

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 possibly damaging
Transcript: ENSMUST00000112086
AA Change: P77H

PolyPhen 2 Score 0.861 (Sensitivity: 0.83; Specificity: 0.93)
SMART Domains Protein: ENSMUSP00000107716
Gene: ENSMUSG00000026414
AA Change: P77H

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 possibly damaging
Transcript: ENSMUST00000112087
AA Change: P77H

PolyPhen 2 Score 0.801 (Sensitivity: 0.84; Specificity: 0.93)
SMART Domains Protein: ENSMUSP00000107717
Gene: ENSMUSG00000026414
AA Change: P77H

DomainStartEndE-ValueType
coiled coil region 1 37 N/A INTRINSIC
Pfam:Troponin 106 250 1.1e-38 PFAM
Predicted Effect possibly damaging
Transcript: ENSMUST00000178204
AA Change: P81H

PolyPhen 2 Score 0.776 (Sensitivity: 0.85; Specificity: 0.92)
SMART Domains Protein: ENSMUSP00000137579
Gene: ENSMUSG00000026414
AA Change: P81H

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 possibly damaging
Transcript: ENSMUST00000178854
AA Change: P71H

PolyPhen 2 Score 0.874 (Sensitivity: 0.83; Specificity: 0.93)
SMART Domains Protein: ENSMUSP00000136265
Gene: ENSMUSG00000026414
AA Change: P71H

DomainStartEndE-ValueType
coiled coil region 1 35 N/A INTRINSIC
Pfam:Troponin 100 244 1.7e-39 PFAM
Predicted Effect probably damaging
Transcript: ENSMUST00000179863
AA Change: P81H

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000137093
Gene: ENSMUSG00000026414
AA Change: P81H

DomainStartEndE-ValueType
coiled coil region 1 41 N/A INTRINSIC
Pfam:Troponin 110 251 3e-39 PFAM
Predicted Effect probably damaging
Transcript: ENSMUST00000188028
AA Change: P81H

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000140941
Gene: ENSMUSG00000026414
AA Change: P81H

DomainStartEndE-ValueType
coiled coil region 1 41 N/A INTRINSIC
Pfam:Troponin 110 251 3e-39 PFAM
Predicted Effect possibly damaging
Transcript: ENSMUST00000189355
AA Change: P67H

PolyPhen 2 Score 0.874 (Sensitivity: 0.83; Specificity: 0.93)
SMART Domains Protein: ENSMUSP00000139919
Gene: ENSMUSG00000026414
AA Change: P67H

DomainStartEndE-ValueType
coiled coil region 1 31 N/A INTRINSIC
Pfam:Troponin 96 240 1.6e-39 PFAM
Predicted Effect possibly damaging
Transcript: ENSMUST00000189732
AA Change: P71H

PolyPhen 2 Score 0.874 (Sensitivity: 0.83; Specificity: 0.93)
SMART Domains Protein: ENSMUSP00000139669
Gene: ENSMUSG00000026414
AA Change: P71H

DomainStartEndE-ValueType
coiled coil region 1 35 N/A INTRINSIC
Pfam:Troponin 100 244 1.7e-39 PFAM
Predicted Effect probably damaging
Transcript: ENSMUST00000189826
AA Change: P81H

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000140807
Gene: ENSMUSG00000026414
AA Change: P81H

DomainStartEndE-ValueType
coiled coil region 1 41 N/A INTRINSIC
Pfam:Troponin 110 201 1.7e-20 PFAM
Predicted Effect probably damaging
Transcript: ENSMUST00000190451
AA Change: P67H

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000140282
Gene: ENSMUSG00000026414
AA Change: P67H

DomainStartEndE-ValueType
coiled coil region 1 31 N/A INTRINSIC
PDB:2Z5H|T 85 114 3e-7 PDB
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 99.8%
  • 10x: 98.9%
  • 20x: 95.4%
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: 69 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abcb5 A T 12: 118,895,651 (GRCm39) C382S probably benign Het
Abcf2 A G 5: 24,776,191 (GRCm39) V296A possibly damaging Het
Aco2 C G 15: 81,756,620 (GRCm39) probably benign Het
Acvrl1 A G 15: 101,039,011 (GRCm39) D436G possibly damaging Het
Adamts7 A G 9: 90,056,692 (GRCm39) I254V Het
Arhgef18 A G 8: 3,503,257 (GRCm39) I888V probably benign Het
Arhgef40 C A 14: 52,235,072 (GRCm39) A1083D probably damaging Het
Arnt2 C A 7: 83,954,059 (GRCm39) A275S probably benign Het
Brd10 A T 19: 29,731,900 (GRCm39) Y371N possibly damaging Het
Brip1 C T 11: 86,080,599 (GRCm39) V156I probably benign Het
Camk4 C A 18: 33,291,953 (GRCm39) C204* probably null Het
Cenpe A G 3: 134,923,797 (GRCm39) T161A probably benign Het
Chd2 G A 7: 73,105,358 (GRCm39) H1256Y probably damaging Het
Chd9 G A 8: 91,716,233 (GRCm39) V936I unknown Het
D6Ertd527e A G 6: 87,089,233 (GRCm39) *465W probably null Het
Dcaf11 T A 14: 55,803,114 (GRCm39) D309E probably damaging Het
Dtna A G 18: 23,743,553 (GRCm39) N373S probably benign Het
Eif2b2 A G 12: 85,266,897 (GRCm39) D104G probably benign Het
Fras1 A T 5: 96,874,742 (GRCm39) T2302S probably benign Het
Gga1 A G 15: 78,768,321 (GRCm39) K114E probably damaging Het
Gm12887 A G 4: 121,473,616 (GRCm39) probably null Het
Gss A T 2: 155,406,794 (GRCm39) I396N Het
H2-M5 T C 17: 37,299,422 (GRCm39) I199M possibly damaging Het
Hjurp GT GTT 1: 88,194,246 (GRCm39) probably null Het
Ift172 G T 5: 31,441,399 (GRCm39) T245K possibly damaging Het
Ift70a2 G A 2: 75,808,215 (GRCm39) T99I probably benign Het
Iqck A G 7: 118,498,881 (GRCm39) D173G probably damaging Het
Itga11 A G 9: 62,675,039 (GRCm39) N857S possibly damaging Het
Kdm1b C A 13: 47,202,770 (GRCm39) S68R probably benign Het
Ly6c1 C A 15: 74,917,300 (GRCm39) G116V probably damaging Het
Myo6 G T 9: 80,162,285 (GRCm39) V341L unknown Het
Nfkbie C A 17: 45,870,183 (GRCm39) A176E probably damaging Het
Nlrp2 C T 7: 5,330,478 (GRCm39) M639I probably benign Het
Or10g3 T A 14: 52,609,716 (GRCm39) S265C probably damaging Het
Or10j2 T A 1: 173,098,147 (GRCm39) I135N possibly damaging Het
Or56a41 T C 7: 104,740,433 (GRCm39) I138V probably benign Het
Or5w16 A G 2: 87,577,125 (GRCm39) N195S probably damaging Het
Or6c215 T C 10: 129,637,564 (GRCm39) T277A probably damaging Het
Or8k40 A T 2: 86,584,354 (GRCm39) S243T probably damaging Het
Pak4 G A 7: 28,264,263 (GRCm39) T213M probably damaging Het
Pan2 C T 10: 128,153,810 (GRCm39) Q1003* probably null Het
Pde4c G C 8: 71,179,550 (GRCm39) V34L probably benign Het
Pi4k2a G A 19: 42,089,235 (GRCm39) V199M probably damaging Het
Platr25 T C 13: 62,848,007 (GRCm39) E285G probably damaging Het
Polr3e T C 7: 120,536,906 (GRCm39) V356A possibly damaging Het
Prcp A G 7: 92,567,017 (GRCm39) D243G probably benign Het
Qsox2 T C 2: 26,115,246 (GRCm39) T161A probably damaging Het
Rhoj A G 12: 75,355,700 (GRCm39) T35A Het
Scn9a T A 2: 66,325,147 (GRCm39) M1336L probably damaging Het
Sel1l2 G T 2: 140,117,384 (GRCm39) N162K probably damaging Het
Slc15a3 T C 19: 10,820,866 (GRCm39) L161P probably damaging Het
Slc4a11 G A 2: 130,533,663 (GRCm39) A100V probably damaging Het
Sp1 A G 15: 102,316,320 (GRCm39) S41G probably benign Het
Tbx15 A G 3: 99,222,085 (GRCm39) M183V probably benign Het
Tfip11 A G 5: 112,481,214 (GRCm39) T397A possibly damaging Het
Themis T C 10: 28,657,749 (GRCm39) S259P probably damaging Het
Tm7sf2 T C 19: 6,117,172 (GRCm39) Y77C probably damaging Het
Trpc7 T C 13: 57,035,886 (GRCm39) T16A probably benign Het
Ttn T A 2: 76,745,056 (GRCm39) Y5331F possibly damaging Het
Virma A G 4: 11,526,922 (GRCm39) Q1057R possibly damaging Het
Vmn2r118 A T 17: 55,918,649 (GRCm39) F81Y probably damaging Het
Vmn2r88 T C 14: 51,651,490 (GRCm39) V268A Het
Vmn2r93 T A 17: 18,524,471 (GRCm39) M155K probably benign Het
Vps13b G T 15: 35,875,931 (GRCm39) C2772F possibly damaging Het
Wdr90 T C 17: 26,076,200 (GRCm39) N86D Het
Zbtb34 T C 2: 33,301,248 (GRCm39) D431G probably damaging Het
Zc3h3 G A 15: 75,711,237 (GRCm39) P408L probably benign Het
Zfp345 A G 2: 150,313,864 (GRCm39) Y558H probably benign Het
Zfp583 G A 7: 6,319,543 (GRCm39) P490S 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
R1478:Tnnt2 UTSW 1 135,775,764 (GRCm39) missense probably benign 0.40
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
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'- TGGGCCTATAAACACAGCC -3'
(R):5'- TCCCTTGGTGTAGTTCAACCAG -3'

Sequencing Primer
(F):5'- AGCCAGCCATTCTCTGCGAC -3'
(R):5'- GGTGTAGTTCAACCAGTTCAACTC -3'
Posted On 2021-11-19