Mutagenetix > Incidental Mutation

Incidental Mutation 'R8280:Tnnt3'

638150

Institutional Source

Beutler Lab

Gene Symbol

Tnnt3

Ensembl Gene

ENSMUSG00000061723

Gene Name

troponin T3, skeletal, fast

Synonyms

skeletal muscle fast-twitch TnT, fTnT

MMRRC Submission

067703-MU

Accession Numbers

Essential gene?

Essential (E-score: 1.000) question?

Stock #

R8280 (G1)

Quality Score

225.009

Status

Validated

Chromosome

Chromosomal Location

142052573-142069746 bp(+) (GRCm39)

Type of Mutation

missense

DNA Base Change (assembly)

A to G at 142055359 bp (GRCm39)

Zygosity

Heterozygous

Amino Acid Change

Isoleucine to Methionine at position 1 (I1M)

Ref Sequence

ENSEMBL: ENSMUSP00000116087 (fasta)

Gene Model

predicted gene model for transcript(s): [ENSMUST00000074187] [ENSMUST00000078497] [ENSMUST00000105941] [ENSMUST00000105942] [ENSMUST00000105943] [ENSMUST00000105944] [ENSMUST00000105945] [ENSMUST00000146804] [ENSMUST00000105946] [ENSMUST00000105947] [ENSMUST00000105948] [ENSMUST00000105949] [ENSMUST00000105950] [ENSMUST00000105952] [ENSMUST00000105953] [ENSMUST00000105954] [ENSMUST00000105955] [ENSMUST00000105957] [ENSMUST00000105958] [ENSMUST00000128294] [ENSMUST00000169299] [ENSMUST00000179658] [ENSMUST00000180152]

AlphaFold

no structure available at present

Predicted Effect

probably benign
Transcript: ENSMUST00000074187

SMART Domains

Protein: ENSMUSP00000073815
Gene: ENSMUSG00000061723

Domain	Start	End	E-Value	Type
low complexity region	4	27	N/A	INTRINSIC
Pfam:Troponin	52	194	1.5e-42	PFAM
low complexity region	233	245	N/A	INTRINSIC

Predicted Effect

probably benign
Transcript: ENSMUST00000078497

SMART Domains

Protein: ENSMUSP00000077587
Gene: ENSMUSG00000061723

Domain	Start	End	E-Value	Type
coiled coil region	1	48	N/A	INTRINSIC
Pfam:Troponin	72	214	2.1e-42	PFAM
low complexity region	253	265	N/A	INTRINSIC

Predicted Effect

probably benign
Transcript: ENSMUST00000105941

SMART Domains

Protein: ENSMUSP00000101561
Gene: ENSMUSG00000061723

Domain	Start	End	E-Value	Type
low complexity region	4	27	N/A	INTRINSIC
Pfam:Troponin	52	194	2.1e-42	PFAM
low complexity region	229	245	N/A	INTRINSIC

Predicted Effect

probably benign
Transcript: ENSMUST00000105942

SMART Domains

Protein: ENSMUSP00000101562
Gene: ENSMUSG00000061723

Domain	Start	End	E-Value	Type
low complexity region	4	18	N/A	INTRINSIC
Pfam:Troponin	43	185	1.7e-42	PFAM
low complexity region	224	236	N/A	INTRINSIC

Predicted Effect

probably benign
Transcript: ENSMUST00000105943

SMART Domains

Protein: ENSMUSP00000101563
Gene: ENSMUSG00000061723

Domain	Start	End	E-Value	Type
low complexity region	4	18	N/A	INTRINSIC
Pfam:Troponin	43	185	1.9e-42	PFAM
low complexity region	220	236	N/A	INTRINSIC

Predicted Effect

probably benign
Transcript: ENSMUST00000105944

SMART Domains

Protein: ENSMUSP00000101564
Gene: ENSMUSG00000061723

Domain	Start	End	E-Value	Type
coiled coil region	1	30	N/A	INTRINSIC
Pfam:Troponin	54	196	2e-42	PFAM
low complexity region	235	247	N/A	INTRINSIC

Predicted Effect

probably benign
Transcript: ENSMUST00000105945

SMART Domains

Protein: ENSMUSP00000101565
Gene: ENSMUSG00000061723

Domain	Start	End	E-Value	Type
low complexity region	4	27	N/A	INTRINSIC
Pfam:Troponin	52	194	1.5e-42	PFAM
low complexity region	233	245	N/A	INTRINSIC

Predicted Effect

unknown
Transcript: ENSMUST00000146804
AA Change: I1M

SMART Domains

Protein: ENSMUSP00000116087
Gene: ENSMUSG00000061723
AA Change: I1M

Domain	Start	End	E-Value	Type
low complexity region	10	24	N/A	INTRINSIC
Pfam:Troponin	49	191	1.4e-40	PFAM

Predicted Effect

probably benign
Transcript: ENSMUST00000105946

SMART Domains

Protein: ENSMUSP00000101566
Gene: ENSMUSG00000061723

Domain	Start	End	E-Value	Type
coiled coil region	1	28	N/A	INTRINSIC
Pfam:Troponin	58	200	1.8e-42	PFAM
low complexity region	235	251	N/A	INTRINSIC

Predicted Effect

probably benign
Transcript: ENSMUST00000105947

SMART Domains

Protein: ENSMUSP00000101567
Gene: ENSMUSG00000061723

Domain	Start	End	E-Value	Type
coiled coil region	1	28	N/A	INTRINSIC
Pfam:Troponin	63	205	1.9e-42	PFAM
low complexity region	240	256	N/A	INTRINSIC

Predicted Effect

probably benign
Transcript: ENSMUST00000105948

SMART Domains

Protein: ENSMUSP00000101568
Gene: ENSMUSG00000061723

Domain	Start	End	E-Value	Type
coiled coil region	1	30	N/A	INTRINSIC
Pfam:Troponin	54	196	2.2e-42	PFAM
low complexity region	231	247	N/A	INTRINSIC

Predicted Effect

probably benign
Transcript: ENSMUST00000105949

SMART Domains

Protein: ENSMUSP00000101569
Gene: ENSMUSG00000061723

Domain	Start	End	E-Value	Type
low complexity region	4	23	N/A	INTRINSIC
Pfam:Troponin	48	190	1.8e-42	PFAM
low complexity region	229	241	N/A	INTRINSIC

Predicted Effect

probably benign
Transcript: ENSMUST00000105950

SMART Domains

Protein: ENSMUSP00000101570
Gene: ENSMUSG00000061723

Domain	Start	End	E-Value	Type
coiled coil region	3	42	N/A	INTRINSIC
Pfam:Troponin	66	208	1.9e-42	PFAM
internal_repeat_1	213	240	4.67e-5	PROSPERO
low complexity region	247	259	N/A	INTRINSIC

Predicted Effect

probably benign
Transcript: ENSMUST00000105952

SMART Domains

Protein: ENSMUSP00000101572
Gene: ENSMUSG00000061723

Domain	Start	End	E-Value	Type
coiled coil region	1	28	N/A	INTRINSIC
Pfam:Troponin	63	205	1.8e-42	PFAM
low complexity region	244	256	N/A	INTRINSIC

Predicted Effect

probably benign
Transcript: ENSMUST00000105953

SMART Domains

Protein: ENSMUSP00000101573
Gene: ENSMUSG00000061723

Domain	Start	End	E-Value	Type
coiled coil region	3	42	N/A	INTRINSIC
Pfam:Troponin	66	208	1.9e-42	PFAM
low complexity region	247	259	N/A	INTRINSIC

Predicted Effect

probably benign
Transcript: ENSMUST00000105954

SMART Domains

Protein: ENSMUSP00000101574
Gene: ENSMUSG00000061723

Domain	Start	End	E-Value	Type
coiled coil region	1	44	N/A	INTRINSIC
Pfam:Troponin	67	209	1.9e-42	PFAM
low complexity region	248	260	N/A	INTRINSIC

Predicted Effect

probably benign
Transcript: ENSMUST00000105955

SMART Domains

Protein: ENSMUSP00000101575
Gene: ENSMUSG00000061723

Domain	Start	End	E-Value	Type
coiled coil region	1	36	N/A	INTRINSIC
Pfam:Troponin	59	201	2.2e-42	PFAM
low complexity region	240	252	N/A	INTRINSIC

Predicted Effect

probably benign
Transcript: ENSMUST00000105957

SMART Domains

Protein: ENSMUSP00000101577
Gene: ENSMUSG00000061723

Domain	Start	End	E-Value	Type
low complexity region	4	36	N/A	INTRINSIC
Pfam:Troponin	63	205	1.8e-42	PFAM
low complexity region	244	256	N/A	INTRINSIC

Predicted Effect

probably benign
Transcript: ENSMUST00000105958

SMART Domains

Protein: ENSMUSP00000101578
Gene: ENSMUSG00000061723

Domain	Start	End	E-Value	Type
coiled coil region	1	28	N/A	INTRINSIC
Pfam:Troponin	76	218	2.1e-42	PFAM
low complexity region	253	269	N/A	INTRINSIC

Predicted Effect

probably benign
Transcript: ENSMUST00000128294

SMART Domains

Protein: ENSMUSP00000116223
Gene: ENSMUSG00000061723

Domain	Start	End	E-Value	Type
low complexity region	4	24	N/A	INTRINSIC
Pfam:Troponin	49	107	3.6e-17	PFAM

Predicted Effect

probably benign
Transcript: ENSMUST00000169299

SMART Domains

Protein: ENSMUSP00000127854
Gene: ENSMUSG00000061723

Domain	Start	End	E-Value	Type
coiled coil region	1	28	N/A	INTRINSIC
Pfam:Troponin	58	200	1.8e-42	PFAM
low complexity region	235	251	N/A	INTRINSIC

Predicted Effect

probably benign
Transcript: ENSMUST00000179658

SMART Domains

Protein: ENSMUSP00000136278
Gene: ENSMUSG00000061723

Domain	Start	End	E-Value	Type
coiled coil region	1	28	N/A	INTRINSIC
Pfam:Troponin	76	212	1.5e-36	PFAM
low complexity region	257	269	N/A	INTRINSIC

Predicted Effect

probably benign
Transcript: ENSMUST00000180152

SMART Domains

Protein: ENSMUSP00000137111
Gene: ENSMUSG00000061723

Domain	Start	End	E-Value	Type
coiled coil region	1	28	N/A	INTRINSIC
Pfam:Troponin	76	218	5.1e-42	PFAM
internal_repeat_1	223	250	2.76e-5	PROSPERO
low complexity region	257	269	N/A	INTRINSIC

Coding Region Coverage

1x: 100.0%
3x: 99.9%
10x: 99.7%
20x: 99.0%

Validation Efficiency

100% (47/47)

MGI Phenotype

FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The binding of Ca(2+) to the trimeric troponin complex initiates the process of muscle contraction. Increased Ca(2+) concentrations produce a conformational change in the troponin complex that is transmitted to tropomyosin dimers situated along actin filaments. The altered conformation permits increased interaction between a myosin head and an actin filament which, ultimately, produces a muscle contraction. The troponin complex has protein subunits C, I, and T. Subunit C binds Ca(2+) and subunit I binds to actin and inhibits actin-myosin interaction. Subunit T binds the troponin complex to the tropomyosin complex and is also required for Ca(2+)-mediated activation of actomyosin ATPase activity. There are 3 different troponin T genes that encode tissue-specific isoforms of subunit T for fast skeletal-, slow skeletal-, and cardiac-muscle. This gene encodes fast skeletal troponin T protein; also known as troponin T type 3. Alternative splicing results in multiple transcript variants encoding additional distinct troponin T type 3 isoforms. A developmentally regulated switch between fetal/neonatal and adult troponin T type 3 isoforms occurs. Additional splice variants have been described but their biological validity has not been established. Mutations in this gene may cause distal arthrogryposis multiplex congenita type 2B (DA2B). [provided by RefSeq, Oct 2009]
PHENOTYPE: Mice homozygous for a knock-out allele exhibit neonatal lethality, decreased fetal weight, liver and kidney hemorrhage and thin diaphragm. Mice heterozygous for this allele exhibit growth retardation with mild skeleton defects. [provided by MGI curators]

Allele List at MGI

Other mutations in this stock

Total: 47 list
Gene	Ref	Var	Chr/Loc	Mutation	Predicted Effect	Zygosity
4933427D14Rik	A	G	11: 72,086,667 (GRCm39)	V248A	possibly damaging	Het
Alpk2	A	G	18: 65,440,274 (GRCm39)	I373T	probably benign	Het
Anxa1	A	T	19: 20,352,650 (GRCm39)	M308K	possibly damaging	Het
Apob	T	C	12: 8,060,851 (GRCm39)	M3111T	possibly damaging	Het
Cacna1e	T	C	1: 154,344,839 (GRCm39)	D1095G	probably damaging	Het
Cacna2d3	C	T	14: 28,704,328 (GRCm39)	V818I	probably benign	Het
Ces1c	T	A	8: 93,825,809 (GRCm39)	H550L	possibly damaging	Het
Cluap1	A	G	16: 3,729,017 (GRCm39)		probably benign	Het
Cped1	G	T	6: 21,986,820 (GRCm39)	R4L	unknown	Het
Cyb561d1	A	G	3: 108,106,532 (GRCm39)	I229T	probably benign	Het
Cyb561d1	A	G	3: 108,106,713 (GRCm39)	C169R	probably damaging	Het
Dip2a	C	T	10: 76,100,610 (GRCm39)	V1522M	possibly damaging	Het
Diras2	A	G	13: 52,661,863 (GRCm39)	M148T	probably benign	Het
Dnah5	G	T	15: 28,408,538 (GRCm39)	A3508S	probably benign	Het
Fam43b	T	C	4: 138,123,281 (GRCm39)	E13G	probably damaging	Het
Farsa	T	G	8: 85,587,808 (GRCm39)	I113S	probably damaging	Het
Fcrl2	G	T	3: 87,166,364 (GRCm39)	S137*	probably null	Het
Fer1l4	T	C	2: 155,891,620 (GRCm39)	D114G	probably damaging	Het
Gm4181	A	T	14: 51,868,015 (GRCm39)	*185R	probably null	Het
Gm5901	G	A	7: 105,027,105 (GRCm39)		probably null	Het
Heatr4	C	A	12: 84,016,670 (GRCm39)	E532D	probably benign	Het
Il10	C	T	1: 130,947,749 (GRCm39)	P34L	possibly damaging	Het
Irag1	T	C	7: 110,522,828 (GRCm39)	E205G	possibly damaging	Het
Lilra6	A	G	7: 3,916,046 (GRCm39)	L271P	probably benign	Het
Mlh1	A	T	9: 111,078,286 (GRCm39)		probably null	Het
Naaa	T	C	5: 92,411,308 (GRCm39)	Y293C	probably damaging	Het
Ndufaf7	G	A	17: 79,251,275 (GRCm39)	G227R	possibly damaging	Het
Nmral1	A	G	16: 4,531,659 (GRCm39)	S199P	probably damaging	Het
Or1o11	T	C	17: 37,756,744 (GRCm39)	F100L	probably benign	Het
Or4c122	A	T	2: 89,079,234 (GRCm39)	I268K	probably damaging	Het
Or4k2	A	C	14: 50,423,723 (GRCm39)	L318*	probably null	Het
Or4x6	C	A	2: 89,949,742 (GRCm39)	V67L	probably benign	Het
Or6b2	T	C	1: 92,407,729 (GRCm39)	I205V	noncoding transcript	Het
Or8b52	T	A	9: 38,576,783 (GRCm39)	Y119F	probably damaging	Het
Or8g21	C	T	9: 38,906,075 (GRCm39)	V219I	probably benign	Het
Paxbp1	G	T	16: 90,831,123 (GRCm39)	H418N	probably benign	Het
Prtg	A	G	9: 72,813,433 (GRCm39)	Y931C	probably damaging	Het
Robo4	T	C	9: 37,315,372 (GRCm39)	S239P	probably benign	Het
Rragd	A	G	4: 32,995,112 (GRCm39)	R76G	probably benign	Het
Samd8	G	A	14: 21,830,219 (GRCm39)	W278*	probably null	Het
Slc22a8	T	A	19: 8,586,627 (GRCm39)	Y379*	probably null	Het
Taar8c	T	A	10: 23,976,835 (GRCm39)	I326F	probably benign	Het
Tmem245	A	T	4: 56,890,884 (GRCm39)	S715T	possibly damaging	Het
Trio	A	G	15: 27,902,996 (GRCm39)	I214T	unknown	Het
Uqcrfs1	A	T	13: 30,729,071 (GRCm39)	S54T	probably benign	Het
Usf3	A	G	16: 44,038,864 (GRCm39)	T1115A	probably benign	Het
Zscan4f	A	T	7: 11,251,599 (GRCm39)	I212F	probably damaging	Het

Other mutations in Tnnt3

Allele	Source	Chr	Coord	Type	Predicted Effect	PPH Score
IGL02247:Tnnt3	APN	7	142,062,062 (GRCm39)	intron	probably benign
IGL02376:Tnnt3	APN	7	142,066,295 (GRCm39)	missense	possibly damaging	0.64
R0432:Tnnt3	UTSW	7	142,065,823 (GRCm39)	missense	probably benign	0.09
R0463:Tnnt3	UTSW	7	142,066,072 (GRCm39)	missense	probably benign	0.25
R1421:Tnnt3	UTSW	7	142,065,103 (GRCm39)	missense	probably damaging	0.97
R1521:Tnnt3	UTSW	7	142,069,562 (GRCm39)	nonsense	probably null
R1789:Tnnt3	UTSW	7	142,066,101 (GRCm39)	missense	probably damaging	1.00
R1990:Tnnt3	UTSW	7	142,065,262 (GRCm39)	missense	possibly damaging	0.78
R1991:Tnnt3	UTSW	7	142,065,262 (GRCm39)	missense	possibly damaging	0.78
R2029:Tnnt3	UTSW	7	142,066,364 (GRCm39)	splice site	probably benign
R2216:Tnnt3	UTSW	7	142,066,301 (GRCm39)	missense	probably benign	0.03
R4779:Tnnt3	UTSW	7	142,068,020 (GRCm39)	intron	probably benign
R5568:Tnnt3	UTSW	7	142,065,777 (GRCm39)	missense	probably damaging	0.98
R5756:Tnnt3	UTSW	7	142,056,495 (GRCm39)	critical splice donor site	probably null
R5994:Tnnt3	UTSW	7	142,065,003 (GRCm39)	missense	probably damaging	1.00
R6265:Tnnt3	UTSW	7	142,055,382 (GRCm39)	missense	probably damaging	0.98
R7658:Tnnt3	UTSW	7	142,065,833 (GRCm39)	nonsense	probably null
R9074:Tnnt3	UTSW	7	142,065,823 (GRCm39)	missense	probably benign	0.05

Predicted Primers

PCR Primer
(F):5'- TGGAGTCTAAGTTCCAGGGC -3'
(R):5'- ACTGTCATAGTGGGTGAGTAGC -3'

Sequencing Primer
(F):5'- AAAGAAGAAGGGGCATCAAAGTCATG -3'
(R):5'- CATAGTGGGTGAGTAGCAGTGG -3'

Posted On

2020-07-28