Incidental Mutation 'IGL01367:Twnk'
ID 75984
Institutional Source Australian Phenomics Network (link to record)
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 # IGL01367
Quality Score
Status
Chromosome 19
Chromosomal Location 44994102-45001201 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) G to A at 45000090 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Arginine to Glutamine at position 602 (R602Q)
Ref Sequence ENSEMBL: ENSMUSP00000026227 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000026227] [ENSMUST00000039016] [ENSMUST00000179108]
AlphaFold Q8CIW5
Predicted Effect possibly damaging
Transcript: ENSMUST00000026227
AA Change: R602Q

PolyPhen 2 Score 0.917 (Sensitivity: 0.81; Specificity: 0.94)
SMART Domains Protein: ENSMUSP00000026227
Gene: ENSMUSG00000025209
AA Change: R602Q

DomainStartEndE-ValueType
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: ENSMUST00000039016
SMART Domains Protein: ENSMUSP00000045478
Gene: ENSMUSG00000035342

DomainStartEndE-ValueType
low complexity region 99 105 N/A INTRINSIC
low complexity region 187 199 N/A INTRINSIC
low complexity region 242 265 N/A INTRINSIC
low complexity region 267 321 N/A INTRINSIC
low complexity region 375 407 N/A INTRINSIC
low complexity region 412 423 N/A INTRINSIC
Pfam:Fez1 441 639 4.2e-82 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000179108
SMART Domains Protein: ENSMUSP00000137571
Gene: ENSMUSG00000035342

DomainStartEndE-ValueType
low complexity region 99 105 N/A INTRINSIC
low complexity region 187 199 N/A INTRINSIC
low complexity region 242 265 N/A INTRINSIC
low complexity region 267 321 N/A INTRINSIC
low complexity region 375 407 N/A INTRINSIC
low complexity region 412 423 N/A INTRINSIC
Pfam:Fez1 441 639 4.2e-82 PFAM
Coding Region Coverage
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: 44 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4930505A04Rik A G 11: 30,404,843 (GRCm39) V20A possibly damaging Het
Alk T C 17: 72,207,781 (GRCm39) I985V probably damaging Het
Anapc2 A C 2: 25,164,794 (GRCm39) R59S possibly damaging Het
Ankhd1 T A 18: 36,711,696 (GRCm39) D165E probably benign Het
Asb8 A T 15: 98,034,054 (GRCm39) V167D probably damaging Het
Atp5pf A G 16: 84,625,360 (GRCm39) M81T probably benign Het
Bcl7b A G 5: 135,208,950 (GRCm39) T138A probably damaging Het
Cdh23 A G 10: 60,146,566 (GRCm39) L2869P probably damaging Het
Chl1 T C 6: 103,706,186 (GRCm39) S1174P probably benign Het
Clec2g T C 6: 128,925,699 (GRCm39) I36T unknown Het
Denr A G 5: 124,046,182 (GRCm39) D4G probably benign Het
Dnajc10 T C 2: 80,155,096 (GRCm39) probably benign Het
Egf C T 3: 129,496,104 (GRCm39) probably null Het
Galnt10 A C 11: 57,616,409 (GRCm39) Y108S probably damaging Het
Gls C T 1: 52,207,558 (GRCm39) G602D probably damaging Het
Grb10 G T 11: 11,895,599 (GRCm39) Q242K probably damaging Het
Hspg2 A T 4: 137,265,800 (GRCm39) Y1837F probably damaging Het
Ikzf1 G T 11: 11,698,358 (GRCm39) A70S probably benign Het
Il17ra T C 6: 120,458,426 (GRCm39) Y526H probably damaging Het
Il34 A T 8: 111,469,375 (GRCm39) I186N possibly damaging Het
Iqca1 G A 1: 89,998,350 (GRCm39) probably benign Het
Kntc1 A G 5: 123,896,546 (GRCm39) Y136C probably damaging Het
Man2b2 A T 5: 36,971,681 (GRCm39) Y257* probably null Het
Map3k19 A G 1: 127,752,088 (GRCm39) F421S possibly damaging Het
Melk A G 4: 44,332,907 (GRCm39) T288A possibly damaging Het
Mpp2 T C 11: 101,954,135 (GRCm39) E187G probably damaging Het
Mtf2 A G 5: 108,252,323 (GRCm39) T394A probably benign Het
Neil2 A G 14: 63,429,177 (GRCm39) S39P probably damaging Het
Or4e5 T A 14: 52,727,624 (GRCm39) I266F probably benign Het
Pcdh7 A G 5: 58,286,566 (GRCm39) E1214G possibly damaging Het
Pcdhb17 G T 18: 37,620,548 (GRCm39) Q779H probably benign Het
Pik3c2b A G 1: 133,033,726 (GRCm39) I1577V probably benign Het
Pkp3 C T 7: 140,663,989 (GRCm39) P389S probably damaging Het
Ppp4r2 T A 6: 100,841,706 (GRCm39) Y92* probably null Het
Rnf13 T C 3: 57,714,508 (GRCm39) I189T probably benign Het
Serpinf2 T C 11: 75,328,871 (GRCm39) D53G probably benign Het
Slc47a2 T A 11: 61,220,607 (GRCm39) T184S probably benign Het
Sned1 T C 1: 93,210,936 (GRCm39) I1008T probably benign Het
Sorcs3 A T 19: 48,784,814 (GRCm39) E1079V probably damaging Het
Trappc8 G A 18: 20,999,176 (GRCm39) S318L probably benign Het
Trappc9 A G 15: 72,462,002 (GRCm39) S909P probably benign Het
Ttn G A 2: 76,560,483 (GRCm39) T29306I probably damaging Het
Vmn2r15 A T 5: 109,441,075 (GRCm39) I261K probably damaging Het
Vmn2r77 G A 7: 86,461,124 (GRCm39) A817T probably damaging Het
Other mutations in Twnk
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00858:Twnk APN 19 44,996,065 (GRCm39) missense probably benign 0.03
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
R1487:Twnk UTSW 19 44,996,815 (GRCm39) critical splice donor site probably null
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
Posted On 2013-10-07