Mutagenetix > Incidental Mutation

Incidental Mutation 'R1487:Twnk'

163570

Institutional Source

Beutler Lab

Gene Symbol

Twnk

Ensembl Gene

ENSMUSG00000025209

Gene Name

twinkle mtDNA helicase

Synonyms

Peo1, D19Ertd626e, twinkle, Twinl

Accession Numbers

Essential gene?

Essential (E-score: 1.000) question?

Stock #

R1487 (G1)

Quality Score

143

Status

Not validated

Chromosome

Chromosomal Location

44994102-45001201 bp(+) (GRCm39)

Type of Mutation

critical splice donor site (1 bp from exon)

DNA Base Change (assembly)

G to T at 44996815 bp (GRCm39)

Zygosity

Heterozygous

Amino Acid Change

Ref Sequence

ENSEMBL: ENSMUSP00000026227 (fasta)

Gene Model

predicted gene model for transcript(s): [ENSMUST00000026225] [ENSMUST00000026227] [ENSMUST00000097715] [ENSMUST00000130549] [ENSMUST00000179305]

AlphaFold

Q8CIW5

Predicted Effect

probably benign
Transcript: ENSMUST00000026225

SMART Domains

Protein: ENSMUSP00000026225
Gene: ENSMUSG00000025207

Domain	Start	End	E-Value	Type
signal peptide	1	17	N/A	INTRINSIC
Sema	56	487	2.38e-165	SMART
PSI	505	556	6.59e-13	SMART
IG	567	649	6.26e-5	SMART
low complexity region	650	666	N/A	INTRINSIC
transmembrane domain	677	699	N/A	INTRINSIC
low complexity region	701	708	N/A	INTRINSIC
low complexity region	713	720	N/A	INTRINSIC
low complexity region	734	751	N/A	INTRINSIC
low complexity region	761	774	N/A	INTRINSIC

Predicted Effect

probably null
Transcript: ENSMUST00000026227

SMART Domains

Protein: ENSMUSP00000026227
Gene: ENSMUSG00000025209

Domain	Start	End	E-Value	Type
low complexity region	213	224	N/A	INTRINSIC
Blast:TOPRIM	260	331	8e-16	BLAST
Pfam:AAA_25	377	565	5.6e-25	PFAM
Pfam:DnaB_C	390	631	6.7e-17	PFAM
Pfam:KaiC	394	628	2.6e-11	PFAM
low complexity region	650	661	N/A	INTRINSIC

Predicted Effect

probably benign
Transcript: ENSMUST00000097715

SMART Domains

Protein: ENSMUSP00000095322
Gene: ENSMUSG00000025208

Domain	Start	End	E-Value	Type
L51_S25_CI-B8	35	108	1.61e-23	SMART

Predicted Effect

probably benign
Transcript: ENSMUST00000130549

SMART Domains

Protein: ENSMUSP00000138321
Gene: ENSMUSG00000025207

Domain	Start	End	E-Value	Type
signal peptide	1	17	N/A	INTRINSIC
Sema	56	487	2.38e-165	SMART
PSI	505	556	6.59e-13	SMART
IG	567	649	6.26e-5	SMART
low complexity region	650	666	N/A	INTRINSIC
transmembrane domain	677	699	N/A	INTRINSIC
low complexity region	701	708	N/A	INTRINSIC
low complexity region	713	720	N/A	INTRINSIC
low complexity region	734	751	N/A	INTRINSIC
low complexity region	761	774	N/A	INTRINSIC

Predicted Effect

probably benign
Transcript: ENSMUST00000179305

SMART Domains

Protein: ENSMUSP00000137395
Gene: ENSMUSG00000025207

Domain	Start	End	E-Value	Type
signal peptide	1	17	N/A	INTRINSIC
Sema	56	487	2.38e-165	SMART
PSI	505	556	6.59e-13	SMART
IG	567	649	6.26e-5	SMART
low complexity region	650	666	N/A	INTRINSIC
transmembrane domain	677	699	N/A	INTRINSIC
low complexity region	701	708	N/A	INTRINSIC
low complexity region	713	720	N/A	INTRINSIC
low complexity region	734	751	N/A	INTRINSIC
low complexity region	761	774	N/A	INTRINSIC

Coding Region Coverage

1x: 99.2%
3x: 98.3%
10x: 96.4%
20x: 92.9%

Validation Efficiency

MGI Phenotype

FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a hexameric DNA helicase which unwinds short stretches of double-stranded DNA in the 5' to 3' direction and, along with mitochondrial single-stranded DNA binding protein and mtDNA polymerase gamma, is thought to play a key role in mtDNA replication. The protein localizes to the mitochondrial matrix and mitochondrial nucleoids. Mutations in this gene cause infantile onset spinocerebellar ataxia (IOSCA) and progressive external ophthalmoplegia (PEO) and are also associated with several mitochondrial depletion syndromes. Alternative splicing results in multiple transcript variants encoding distinct isoforms.[provided by RefSeq, Aug 2009]
PHENOTYPE: Homozygous embryos display abnormal development. Embryos die around E8.5. [provided by MGI curators]

Allele List at MGI

Other mutations in this stock

Total: 65 list
Gene	Ref	Var	Chr/Loc	Mutation	Predicted Effect	Zygosity
1700034J05Rik	A	C	6: 146,854,877 (GRCm39)	V55G	probably benign	Het
Abhd13	A	G	8: 10,037,402 (GRCm39)		probably benign	Het
Arid5b	T	A	10: 67,933,044 (GRCm39)	K953*	probably null	Het
Armh3	A	C	19: 45,928,882 (GRCm39)		probably null	Het
B4galt6	A	G	18: 20,839,571 (GRCm39)	V121A	possibly damaging	Het
C1qtnf12	G	A	4: 156,050,331 (GRCm39)	E223K	probably damaging	Het
Calu	A	G	6: 29,366,955 (GRCm39)	I208V	probably benign	Het
Cd14	T	C	18: 36,858,537 (GRCm39)	N306S	probably benign	Het
Cdc16	T	A	8: 13,821,445 (GRCm39)	N415K	probably benign	Het
Cfap57	C	A	4: 118,471,978 (GRCm39)	V134F	probably benign	Het
Chrna2	C	T	14: 66,380,812 (GRCm39)	A27V	probably benign	Het
Chtf18	T	C	17: 25,939,583 (GRCm39)	K67R	probably benign	Het
Clock	T	C	5: 76,414,201 (GRCm39)		probably null	Het
Cplane1	C	T	15: 8,215,715 (GRCm39)	R424W	probably damaging	Het
Eif4g1	G	A	16: 20,497,623 (GRCm39)		probably benign	Het
Eps8l2	A	T	7: 140,941,531 (GRCm39)	M601L	probably benign	Het
Fat4	A	G	3: 39,050,066 (GRCm39)	E3976G	possibly damaging	Het
Flrt3	T	A	2: 140,502,854 (GRCm39)	H258L	probably damaging	Het
Flt4	C	A	11: 49,523,971 (GRCm39)	T517K	possibly damaging	Het
Galnt7	T	C	8: 57,993,073 (GRCm39)	N416S	probably damaging	Het
Gipc1	C	T	8: 84,387,808 (GRCm39)	Q63*	probably null	Het
Gm17079	A	T	14: 51,930,542 (GRCm39)		probably null	Het
Gucy2c	T	A	6: 136,725,824 (GRCm39)	I375F	possibly damaging	Het
Hps4	C	T	5: 112,525,865 (GRCm39)	Q629*	probably null	Het
Hunk	A	G	16: 90,183,525 (GRCm39)	Y61C	probably damaging	Het
Itga6	T	C	2: 71,673,584 (GRCm39)	S873P	possibly damaging	Het
Kcnc1	A	G	7: 46,047,298 (GRCm39)	H66R	possibly damaging	Het
Kcnc1	T	C	7: 46,084,772 (GRCm39)		probably null	Het
Khdc3	A	G	9: 73,009,846 (GRCm39)	T19A	probably benign	Het
Kmt2a	T	C	9: 44,745,287 (GRCm39)		probably benign	Het
Lipe	C	T	7: 25,084,240 (GRCm39)	A615T	possibly damaging	Het
Lrguk	A	T	6: 34,039,295 (GRCm39)	M269L	probably benign	Het
Lrrc18	A	G	14: 32,730,640 (GRCm39)	N60D	probably damaging	Het
Magi1	T	C	6: 93,685,060 (GRCm39)	T773A	probably benign	Het
Map3k14	T	A	11: 103,116,163 (GRCm39)	D755V	possibly damaging	Het
Mecom	T	C	3: 30,034,213 (GRCm39)	T488A	probably damaging	Het
Mmp10	T	G	9: 7,509,978 (GRCm39)	W473G	probably damaging	Het
Mrgpra2a	C	T	7: 47,076,434 (GRCm39)	V275I	probably benign	Het
Myo7a	A	C	7: 97,703,017 (GRCm39)		probably null	Het
Nadsyn1	C	T	7: 143,360,662 (GRCm39)	V369I	probably benign	Het
Nptxr	C	A	15: 79,674,104 (GRCm39)	G424V	probably damaging	Het
Nrg2	C	T	18: 36,185,965 (GRCm39)	G258E	possibly damaging	Het
Nup210	G	A	6: 91,019,558 (GRCm39)	P221S	probably damaging	Het
Odad2	A	T	18: 7,273,245 (GRCm39)	Y282N	probably damaging	Het
Or52a33	T	A	7: 103,288,801 (GRCm39)	H182L	probably damaging	Het
Or6c208	T	C	10: 129,224,209 (GRCm39)	F236L	probably benign	Het
Oxct1	A	G	15: 4,177,057 (GRCm39)	D477G	possibly damaging	Het
Pcdh8	G	T	14: 80,006,987 (GRCm39)	D525E	probably damaging	Het
Phldb2	A	G	16: 45,609,387 (GRCm39)	S740P	probably damaging	Het
Prss54	A	G	8: 96,286,276 (GRCm39)	S266P	probably benign	Het
Ptprh	T	A	7: 4,555,737 (GRCm39)	I741F	probably damaging	Het
Rab11fip1	G	T	8: 27,644,240 (GRCm39)	S515Y	probably damaging	Het
Recql4	T	A	15: 76,593,183 (GRCm39)	N309I	probably benign	Het
Sec24a	T	C	11: 51,622,713 (GRCm39)	T388A	possibly damaging	Het
Setd6	T	A	8: 96,444,556 (GRCm39)	L83H	probably damaging	Het
Slc6a12	G	A	6: 121,340,716 (GRCm39)	W534*	probably null	Het
St14	C	T	9: 31,008,476 (GRCm39)	C488Y	probably damaging	Het
Supt16	A	G	14: 52,414,065 (GRCm39)		probably null	Het
Tanc2	A	G	11: 105,814,460 (GRCm39)	Y1968C	probably damaging	Het
Tcaim	T	A	9: 122,647,897 (GRCm39)	Y137*	probably null	Het
Tns2	C	T	15: 102,017,369 (GRCm39)	R281C	probably damaging	Het
Tpm3	A	T	3: 89,997,389 (GRCm39)		probably null	Het
Trip12	A	T	1: 84,746,352 (GRCm39)	N475K	probably damaging	Het
Zfp287	T	C	11: 62,616,115 (GRCm39)	K192R	probably damaging	Het
Zfp799	G	T	17: 33,039,651 (GRCm39)	T204N	possibly damaging	Het

Other mutations in Twnk

Allele	Source	Chr	Coord	Type	Predicted Effect	PPH Score
IGL00858:Twnk	APN	19	44,996,065 (GRCm39)	missense	probably benign	0.03
IGL01367:Twnk	APN	19	45,000,090 (GRCm39)	missense	possibly damaging	0.92
IGL01736:Twnk	APN	19	44,998,627 (GRCm39)	missense	probably damaging	0.97
IGL02724:Twnk	APN	19	44,996,557 (GRCm39)	missense	probably damaging	0.99
IGL03368:Twnk	APN	19	44,998,931 (GRCm39)	missense	probably damaging	0.99
R0121:Twnk	UTSW	19	44,997,704 (GRCm39)	unclassified	probably benign
R0389:Twnk	UTSW	19	44,996,578 (GRCm39)	missense	possibly damaging	0.67
R0427:Twnk	UTSW	19	44,996,026 (GRCm39)	missense	probably benign	0.00
R0443:Twnk	UTSW	19	44,996,578 (GRCm39)	missense	possibly damaging	0.67
R0501:Twnk	UTSW	19	44,996,185 (GRCm39)	missense	probably damaging	1.00
R0791:Twnk	UTSW	19	44,998,693 (GRCm39)	unclassified	probably benign
R1193:Twnk	UTSW	19	44,996,229 (GRCm39)	missense	probably damaging	1.00
R1470:Twnk	UTSW	19	44,997,820 (GRCm39)	missense	probably damaging	1.00
R1470:Twnk	UTSW	19	44,997,820 (GRCm39)	missense	probably damaging	1.00
R1556:Twnk	UTSW	19	44,997,850 (GRCm39)	missense	possibly damaging	0.80
R3895:Twnk	UTSW	19	44,995,890 (GRCm39)	missense	probably damaging	0.98
R5652:Twnk	UTSW	19	44,995,732 (GRCm39)	missense	possibly damaging	0.85
R6373:Twnk	UTSW	19	44,997,820 (GRCm39)	missense	probably damaging	1.00
R6595:Twnk	UTSW	19	44,998,931 (GRCm39)	missense	probably damaging	0.99
R6880:Twnk	UTSW	19	44,995,855 (GRCm39)	missense	probably benign
R7349:Twnk	UTSW	19	44,998,600 (GRCm39)	missense	possibly damaging	0.65
R7401:Twnk	UTSW	19	45,000,219 (GRCm39)	missense	probably benign	0.15
R7417:Twnk	UTSW	19	44,999,003 (GRCm39)	splice site	probably null
R7798:Twnk	UTSW	19	44,996,107 (GRCm39)	missense	probably benign	0.00
R7994:Twnk	UTSW	19	44,996,277 (GRCm39)	missense	probably benign	0.03
R8698:Twnk	UTSW	19	44,996,299 (GRCm39)	missense	probably benign
R8826:Twnk	UTSW	19	44,996,434 (GRCm39)	missense	probably benign
R8855:Twnk	UTSW	19	45,000,272 (GRCm39)	nonsense	probably null
R8866:Twnk	UTSW	19	45,000,272 (GRCm39)	nonsense	probably null
R8972:Twnk	UTSW	19	45,000,149 (GRCm39)	missense	probably damaging	1.00
R9683:Twnk	UTSW	19	44,998,622 (GRCm39)	missense	probably damaging	1.00

Predicted Primers

PCR Primer
(F):5'- ACTGTTTGCTCGAAAACTCAACCCC -3'
(R):5'- AGCATTCATGCACATAGACACTGCC -3'

Sequencing Primer
(F):5'- CAAGCGATGCTCTCTGGTG -3'
(R):5'- tggattacaggtacgcttgg -3'

Posted On

2014-03-28