Incidental Mutation 'R4652:Top1'
ID351361
Institutional Source Beutler Lab
Gene Symbol Top1
Ensembl Gene ENSMUSG00000070544
Gene Nametopoisomerase (DNA) I
SynonymsD130064I21Rik, Top-1
MMRRC Submission 041912-MU
Accession Numbers
Is this an essential gene? Essential (E-score: 1.000) question?
Stock #R4652 (G1)
Quality Score225
Status Validated
Chromosome2
Chromosomal Location160645888-160722764 bp(+) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) T to C at 160712717 bp
ZygosityHeterozygous
Amino Acid Change Tyrosine to Histidine at position 463 (Y463H)
Ref Sequence ENSEMBL: ENSMUSP00000105094 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000109468]
Predicted Effect probably damaging
Transcript: ENSMUST00000109468
AA Change: Y463H

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000105094
Gene: ENSMUSG00000070544
AA Change: Y463H

DomainStartEndE-ValueType
low complexity region 20 95 N/A INTRINSIC
low complexity region 150 211 N/A INTRINSIC
Blast:TOPEUc 245 321 9e-19 BLAST
low complexity region 323 339 N/A INTRINSIC
TOPEUc 362 739 4.43e-280 SMART
Predicted Effect noncoding transcript
Transcript: ENSMUST00000150039
Meta Mutation Damage Score 0.4 question?
Coding Region Coverage
  • 1x: 99.3%
  • 3x: 98.6%
  • 10x: 97.4%
  • 20x: 95.7%
Validation Efficiency 95% (111/117)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a DNA topoisomerase, an enzyme that controls and alters the topologic states of DNA during transcription. This enzyme catalyzes the transient breaking and rejoining of a single strand of DNA which allows the strands to pass through one another, thus altering the topology of DNA. This gene is localized to chromosome 20 and has pseudogenes which reside on chromosomes 1 and 22. [provided by RefSeq, Jul 2008]
PHENOTYPE: A homozygous mutation resulted in early embryonic lethality at the 4 to 16 cell stage of development. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 105 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
2310022B05Rik T A 8: 124,639,611 Q131L probably damaging Het
2700049A03Rik G T 12: 71,164,546 E685* probably null Het
2700049A03Rik A T 12: 71,164,547 E685V possibly damaging Het
4933409G03Rik G A 2: 68,606,215 E168K unknown Het
A830018L16Rik C A 1: 11,537,342 probably benign Het
Adam26b A G 8: 43,521,338 V209A possibly damaging Het
Adh6a T A 3: 138,326,115 M256K probably benign Het
Ahnak2 T G 12: 112,774,837 S128R possibly damaging Het
Angptl2 G T 2: 33,243,883 D406Y probably damaging Het
Ano10 A T 9: 122,261,115 Y377* probably null Het
Arfgef1 C T 1: 10,173,262 D1021N probably damaging Het
Arhgap17 G A 7: 123,286,618 probably benign Het
Arsi G A 18: 60,916,651 G202E probably benign Het
Atp10b G A 11: 43,194,645 G284S probably damaging Het
Atp13a4 A T 16: 29,452,603 D498E probably damaging Het
C4a T A 17: 34,810,131 noncoding transcript Het
Cacna1d C T 14: 30,095,408 M1232I probably benign Het
Camsap3 A C 8: 3,600,689 K223T possibly damaging Het
Cast A G 13: 74,746,014 S171P probably benign Het
Cdh8 T A 8: 99,024,859 D742V probably benign Het
Ceacam12 A G 7: 18,067,434 T113A probably damaging Het
Cers3 G A 7: 66,781,856 probably null Het
Cipc T C 12: 86,962,090 V241A probably benign Het
Cntn5 C A 9: 9,704,912 K832N possibly damaging Het
Col12a1 A T 9: 79,612,946 D2815E probably damaging Het
Ctf2 T C 7: 127,719,384 T148A probably benign Het
Cttnbp2 A G 6: 18,434,038 I607T possibly damaging Het
Cux1 A T 5: 136,567,229 N4K probably damaging Het
Dhx36 A T 3: 62,500,998 L140M probably benign Het
Dhx58 T A 11: 100,701,359 N288Y probably damaging Het
Dlgap1 T A 17: 70,761,095 Y554N probably damaging Het
Dnah10 T C 5: 124,729,143 Y127H probably benign Het
Dnah6 T C 6: 73,070,597 M3140V probably benign Het
Dnd1 G A 18: 36,765,061 probably benign Het
Dpy19l1 A C 9: 24,482,054 S140A possibly damaging Het
Dyrk1a C T 16: 94,692,065 T719I probably benign Het
Erlin1 T A 19: 44,040,792 K234* probably null Het
Fndc7 T C 3: 108,862,819 N597S probably benign Het
Folh1 C A 7: 86,744,425 G360* probably null Het
Frmd4b T C 6: 97,295,755 H846R probably benign Het
Gm10375 C A 14: 43,606,869 probably null Het
Gm27047 T C 6: 130,630,516 noncoding transcript Het
Gm7168 A G 17: 13,949,807 R479G possibly damaging Het
Gm9996 T A 10: 29,143,758 probably benign Het
Gnat3 T A 5: 18,015,570 L247H probably damaging Het
H2-D1 T G 17: 35,266,516 probably null Het
Hpf1 T G 8: 60,893,730 S26R possibly damaging Het
Ift80 T A 3: 68,914,940 N627I probably benign Het
Inpp5d A G 1: 87,665,451 K91R probably benign Het
Irgc1 C A 7: 24,432,813 R193L probably damaging Het
Kirrel C T 3: 87,089,151 M380I probably null Het
Lamc1 T G 1: 153,228,777 S59R probably damaging Het
Lrrc9 T C 12: 72,477,386 W790R probably damaging Het
Man1a2 A G 3: 100,632,561 L188P probably damaging Het
Med8 A T 4: 118,410,892 E5V probably damaging Het
Mefv A G 16: 3,717,818 L82P probably damaging Het
Mettl25 A T 10: 105,779,648 C498* probably null Het
Mettl3 T A 14: 52,295,092 I545F probably damaging Het
Mvp T A 7: 126,993,549 I397F probably damaging Het
Nlrp14 A T 7: 107,181,817 I74F probably benign Het
Nudt5 G A 2: 5,856,065 probably benign Het
Nyap2 T A 1: 81,336,729 D713E probably damaging Het
Obscn G A 11: 59,038,877 R5824C probably damaging Het
Olfr1310 G T 2: 112,008,250 S312Y probably damaging Het
Olfr807 T C 10: 129,755,418 I11V probably benign Het
Orc4 A T 2: 48,936,750 probably benign Het
Pde10a T A 17: 8,757,053 N3K possibly damaging Het
Pgm3 T A 9: 86,558,470 R389S probably benign Het
Piwil4 G A 9: 14,712,308 R529* probably null Het
Pkd2l2 A T 18: 34,409,836 R20* probably null Het
Ppp4r3a T A 12: 101,082,911 probably benign Het
Prkcq T C 2: 11,279,522 V501A possibly damaging Het
Prkg1 T C 19: 30,595,012 T400A probably damaging Het
Prps2 T C X: 167,352,292 D183G probably damaging Het
Prrc2c A T 1: 162,723,274 H40Q probably damaging Het
Ptcd1 A T 5: 145,155,175 H371Q probably benign Het
Ptprk T C 10: 28,263,690 I137T probably damaging Het
R3hdm1 T C 1: 128,184,444 S422P probably damaging Het
Rapgef5 G A 12: 117,714,128 G366E probably damaging Het
Rsf1 GCGGCGGCG GCGGCGGCGTCGGCGGCG 7: 97,579,919 probably benign Het
Setd2 A G 9: 110,594,132 D2085G possibly damaging Het
Sfxn3 A G 19: 45,050,874 probably null Het
Sgce T C 6: 4,689,560 probably benign Het
Sipa1l1 T A 12: 82,422,471 L1248* probably null Het
Skint7 T G 4: 111,982,112 M201R probably damaging Het
Slc18a1 A G 8: 69,043,931 M360T possibly damaging Het
Srp68 A T 11: 116,274,014 S31R probably benign Het
Stag1 T A 9: 100,796,716 M230K probably damaging Het
Strc A T 2: 121,374,348 D985E possibly damaging Het
Tarsl2 T A 7: 65,689,969 V704E probably damaging Het
Tbc1d2b A G 9: 90,207,887 F863S probably damaging Het
Tek T C 4: 94,780,884 S41P probably damaging Het
Trim24 T G 6: 37,957,839 probably null Het
Ttn A G 2: 76,746,635 V24638A possibly damaging Het
Ttn A G 2: 76,870,869 probably benign Het
Txndc11 A G 16: 11,075,122 S915P probably benign Het
Tyro3 G C 2: 119,816,868 G826A probably benign Het
Ubxn4 T A 1: 128,274,850 W410R probably benign Het
Vmn1r193 C T 13: 22,219,525 G99D probably damaging Het
Vmn2r109 T A 17: 20,541,394 K567M probably damaging Het
Vmn2r23 T C 6: 123,741,730 F681L probably damaging Het
Vrk2 T C 11: 26,489,803 D256G probably damaging Het
Vwa3a T A 7: 120,778,915 I476N probably damaging Het
Wdr81 A G 11: 75,451,240 V1067A probably damaging Het
Zcwpw2 A G 9: 118,014,051 noncoding transcript Het
Other mutations in Top1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL02168:Top1 APN 2 160704973 splice site probably null
IGL03083:Top1 APN 2 160703578 missense probably damaging 0.97
IGL03242:Top1 APN 2 160715733 missense probably damaging 1.00
IGL03369:Top1 APN 2 160693727 missense unknown
R0022:Top1 UTSW 2 160702799 missense possibly damaging 0.62
R0449:Top1 UTSW 2 160712708 nonsense probably null
R0501:Top1 UTSW 2 160714159 missense probably damaging 1.00
R0564:Top1 UTSW 2 160714265 missense probably damaging 0.98
R0946:Top1 UTSW 2 160712668 nonsense probably null
R0972:Top1 UTSW 2 160721025 missense probably damaging 1.00
R0976:Top1 UTSW 2 160717423 missense possibly damaging 0.86
R1534:Top1 UTSW 2 160714232 missense probably damaging 1.00
R1608:Top1 UTSW 2 160703595 missense probably benign 0.01
R1655:Top1 UTSW 2 160703696 critical splice donor site probably null
R1818:Top1 UTSW 2 160715723 missense probably damaging 1.00
R1937:Top1 UTSW 2 160670122 missense unknown
R2055:Top1 UTSW 2 160702828 splice site probably benign
R2104:Top1 UTSW 2 160704819 missense probably damaging 1.00
R3705:Top1 UTSW 2 160702824 critical splice donor site probably null
R3769:Top1 UTSW 2 160721522 missense probably damaging 1.00
R3770:Top1 UTSW 2 160721522 missense probably damaging 1.00
R3801:Top1 UTSW 2 160702768 missense probably damaging 1.00
R3804:Top1 UTSW 2 160702768 missense probably damaging 1.00
R3928:Top1 UTSW 2 160687749 splice site probably benign
R4598:Top1 UTSW 2 160720965 missense possibly damaging 0.89
R4651:Top1 UTSW 2 160712717 missense probably damaging 1.00
R4742:Top1 UTSW 2 160703570 critical splice acceptor site probably null
R5523:Top1 UTSW 2 160702775 nonsense probably null
R6292:Top1 UTSW 2 160698141 missense probably benign 0.19
R6724:Top1 UTSW 2 160712696 missense probably damaging 1.00
R7354:Top1 UTSW 2 160704958 missense probably damaging 1.00
X0027:Top1 UTSW 2 160721518 nonsense probably null
Predicted Primers PCR Primer
(F):5'- ATGTTACATGCCCCAGACTTTC -3'
(R):5'- TAGCCAACATACTGTACATGCCTC -3'

Sequencing Primer
(F):5'- ACATGCCCCAGACTTTCTCTTCAG -3'
(R):5'- TTTGGATTATAAGTCACACAGCAG -3'
Posted On2015-10-08