Incidental Mutation 'R3413:Top1mt'
ID 267822
Institutional Source Beutler Lab
Gene Symbol Top1mt
Ensembl Gene ENSMUSG00000000934
Gene Name DNA topoisomerase 1, mitochondrial
Synonyms 2900052H09Rik
MMRRC Submission 040631-MU
Accession Numbers
Essential gene? Possibly non essential (E-score: 0.274) question?
Stock # R3413 (G1)
Quality Score 225
Status Validated
Chromosome 15
Chromosomal Location 75528884-75550649 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 75529025 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Asparagine to Serine at position 573 (N573S)
Ref Sequence ENSEMBL: ENSMUSP00000000958 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000000958]
AlphaFold Q8R4U6
Predicted Effect probably benign
Transcript: ENSMUST00000000958
AA Change: N573S

PolyPhen 2 Score 0.413 (Sensitivity: 0.89; Specificity: 0.90)
SMART Domains Protein: ENSMUSP00000000958
Gene: ENSMUSG00000000934
AA Change: N573S

DomainStartEndE-ValueType
Blast:TOPEUc 72 150 4e-38 BLAST
low complexity region 151 166 N/A INTRINSIC
TOPEUc 189 565 5.86e-230 SMART
Predicted Effect noncoding transcript
Transcript: ENSMUST00000146755
Predicted Effect noncoding transcript
Transcript: ENSMUST00000184801
Meta Mutation Damage Score 0.0898 question?
Coding Region Coverage
  • 1x: 99.1%
  • 3x: 98.5%
  • 10x: 97.1%
  • 20x: 94.4%
Validation Efficiency 98% (48/49)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a mitochondrial DNA topoisomerase that plays a role in the modification of DNA topology. The encoded protein is a type IB topoisomerase and catalyzes the transient breaking and rejoining of DNA to relieve tension and DNA supercoiling generated in the mitochondrial genome during replication and transcription. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, May 2012]
PHENOTYPE: Mice homozygous for a null allele display increased oxidative stress and lipid peroxidation, enhanced glycolysis, and mitochondrial abnormalities. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 42 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abhd13 T C 8: 10,037,387 (GRCm39) probably benign Het
Ap2a2 T A 7: 141,178,689 (GRCm39) N105K probably benign Het
Axin1 A G 17: 26,407,012 (GRCm39) H535R probably damaging Het
Ccnb3 T A X: 6,874,040 (GRCm39) E846D probably benign Het
Cdca7 G A 2: 72,315,631 (GRCm39) G365R probably damaging Het
Clvs2 T A 10: 33,498,967 (GRCm39) probably benign Het
Coq10a A G 10: 128,200,998 (GRCm39) V93A possibly damaging Het
Ddx42 A G 11: 106,138,636 (GRCm39) T812A probably benign Het
Dnaaf6 T A X: 139,006,770 (GRCm39) N216K possibly damaging Het
Eya1 T A 1: 14,344,433 (GRCm39) probably null Het
Fcna G C 2: 25,517,505 (GRCm39) P49A probably damaging Het
Gckr T A 5: 31,458,211 (GRCm39) probably null Het
Golgb1 A G 16: 36,707,709 (GRCm39) K68E probably damaging Het
Got1l1 A G 8: 27,689,864 (GRCm39) probably null Het
Hip1 T C 5: 135,451,026 (GRCm39) E451G probably damaging Het
Hs6st2 C T X: 50,770,332 (GRCm39) V50I possibly damaging Het
Ighv1-23 C T 12: 114,728,087 (GRCm39) V112I probably benign Het
Map1s A G 8: 71,365,163 (GRCm39) N107D probably damaging Het
Mmel1 T A 4: 154,974,043 (GRCm39) V361D probably damaging Het
Myh15 A G 16: 48,959,095 (GRCm39) D989G probably benign Het
Myo1g G T 11: 6,467,870 (GRCm39) H188Q possibly damaging Het
Nup210 G T 6: 91,002,224 (GRCm39) Q755K probably benign Het
Or14j3 A G 17: 37,900,587 (GRCm39) V219A probably benign Het
Or51q1c A G 7: 103,653,039 (GRCm39) M186V probably damaging Het
Plcz1 C T 6: 139,947,807 (GRCm39) R525Q probably damaging Het
Ppef2 T G 5: 92,376,581 (GRCm39) S649R probably damaging Het
Rusc2 T G 4: 43,415,935 (GRCm39) S414A probably damaging Het
Sez6l A G 5: 112,623,227 (GRCm39) L108P possibly damaging Het
Slc1a7 A G 4: 107,868,191 (GRCm39) E497G probably benign Het
Spag8 T A 4: 43,651,606 (GRCm39) S423C probably damaging Het
Sspo C T 6: 48,457,631 (GRCm39) R3178C probably damaging Het
St6galnac1 A G 11: 116,656,682 (GRCm39) W486R probably damaging Het
Syk A G 13: 52,785,775 (GRCm39) D327G probably benign Het
Tbc1d8b C T X: 138,614,140 (GRCm39) A391V probably benign Het
Tmed9 A G 13: 55,743,387 (GRCm39) E173G probably benign Het
Tusc1 C A 4: 93,223,173 (GRCm39) R162L probably damaging Het
Ubn2 A G 6: 38,475,674 (GRCm39) T1211A probably benign Het
Unc80 G A 1: 66,678,464 (GRCm39) V2082I probably benign Het
Vmn2r63 A G 7: 42,576,406 (GRCm39) F469S probably benign Het
Zfp92 C T X: 72,463,900 (GRCm39) probably benign Het
Zfyve28 C T 5: 34,357,028 (GRCm39) M723I probably benign Het
Zmynd8 A T 2: 165,657,371 (GRCm39) M533K probably damaging Het
Other mutations in Top1mt
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01925:Top1mt APN 15 75,528,992 (GRCm39) missense possibly damaging 0.47
IGL02111:Top1mt APN 15 75,537,555 (GRCm39) splice site probably benign
IGL02425:Top1mt APN 15 75,547,970 (GRCm39) missense probably benign
IGL02662:Top1mt APN 15 75,540,554 (GRCm39) missense probably damaging 1.00
R1240:Top1mt UTSW 15 75,541,916 (GRCm39) missense probably damaging 0.99
R1438:Top1mt UTSW 15 75,546,247 (GRCm39) missense probably damaging 1.00
R1732:Top1mt UTSW 15 75,538,100 (GRCm39) critical splice donor site probably null
R1884:Top1mt UTSW 15 75,539,750 (GRCm39) missense possibly damaging 0.81
R3414:Top1mt UTSW 15 75,529,025 (GRCm39) missense probably benign 0.41
R4677:Top1mt UTSW 15 75,535,907 (GRCm39) missense possibly damaging 0.48
R4784:Top1mt UTSW 15 75,547,880 (GRCm39) missense possibly damaging 0.88
R4784:Top1mt UTSW 15 75,529,552 (GRCm39) missense probably damaging 1.00
R4791:Top1mt UTSW 15 75,540,474 (GRCm39) critical splice donor site probably null
R6339:Top1mt UTSW 15 75,537,505 (GRCm39) missense possibly damaging 0.72
R6723:Top1mt UTSW 15 75,539,282 (GRCm39) missense probably benign 0.01
R6732:Top1mt UTSW 15 75,541,337 (GRCm39) splice site probably null
R6841:Top1mt UTSW 15 75,547,973 (GRCm39) missense probably benign 0.00
R6884:Top1mt UTSW 15 75,535,893 (GRCm39) missense probably benign 0.37
R7024:Top1mt UTSW 15 75,539,297 (GRCm39) missense probably damaging 1.00
R7052:Top1mt UTSW 15 75,540,560 (GRCm39) missense possibly damaging 0.82
R7055:Top1mt UTSW 15 75,550,523 (GRCm39) missense probably benign 0.01
R7273:Top1mt UTSW 15 75,535,931 (GRCm39) missense probably benign 0.27
R8032:Top1mt UTSW 15 75,540,572 (GRCm39) missense probably damaging 1.00
R8284:Top1mt UTSW 15 75,539,712 (GRCm39) nonsense probably null
R8510:Top1mt UTSW 15 75,541,151 (GRCm39) missense probably benign 0.02
R9469:Top1mt UTSW 15 75,539,742 (GRCm39) missense probably damaging 1.00
R9522:Top1mt UTSW 15 75,539,309 (GRCm39) missense probably damaging 1.00
R9697:Top1mt UTSW 15 75,547,874 (GRCm39) missense probably damaging 1.00
X0028:Top1mt UTSW 15 75,528,980 (GRCm39) missense probably benign 0.00
Predicted Primers PCR Primer
(F):5'- CCAAGGTCAGTCAGTGTTGTTG -3'
(R):5'- CAGGGATGTCATGATACGTGGG -3'

Sequencing Primer
(F):5'- GGGGCCTTTGTTCTAGGTCAC -3'
(R):5'- TGTCATGATACGTGGGGAAGGAATAC -3'
Posted On 2015-02-18