Incidental Mutation 'R8100:Top1'
ID 630440
Institutional Source Beutler Lab
Gene Symbol Top1
Ensembl Gene ENSMUSG00000070544
Gene Name topoisomerase (DNA) I
Synonyms D130064I21Rik, Top-1
MMRRC Submission 067532-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R8100 (G1)
Quality Score 225.009
Status Not validated
Chromosome 2
Chromosomal Location 160487901-160564684 bp(+) (GRCm39)
Type of Mutation nonsense
DNA Base Change (assembly) T to A at 160540155 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Tyrosine to Stop codon at position 244 (Y244*)
Ref Sequence ENSEMBL: ENSMUSP00000105094 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000109468]
AlphaFold Q04750
Predicted Effect probably null
Transcript: ENSMUST00000109468
AA Change: Y244*
SMART Domains Protein: ENSMUSP00000105094
Gene: ENSMUSG00000070544
AA Change: Y244*

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
Coding Region Coverage
  • 1x: 99.9%
  • 3x: 99.8%
  • 10x: 99.4%
  • 20x: 98.4%
Validation Efficiency
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: 56 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adcy4 G A 14: 56,009,722 (GRCm39) Q777* probably null Het
Art1 T C 7: 101,756,405 (GRCm39) S199P probably damaging Het
Cadps2 A T 6: 23,838,808 (GRCm39) M110K probably damaging Het
Cdk13 C T 13: 17,978,101 (GRCm39) R379Q unknown Het
Cdk7 T C 13: 100,842,925 (GRCm39) I272V probably benign Het
Cep350 T C 1: 155,829,148 (GRCm39) D192G probably damaging Het
Chrna6 C T 8: 27,903,844 (GRCm39) probably benign Het
Ciart G A 3: 95,788,656 (GRCm39) P61L probably damaging Het
Ckmt1 T A 2: 121,191,258 (GRCm39) D223E probably benign Het
Col6a5 C T 9: 105,755,839 (GRCm39) R2195H probably damaging Het
D430041D05Rik C T 2: 104,087,287 (GRCm39) R563H probably benign Het
Defa29 A T 8: 21,816,990 (GRCm39) M1K probably null Het
Dnah11 A G 12: 117,930,368 (GRCm39) S3326P probably damaging Het
Dsg3 A G 18: 20,662,028 (GRCm39) D431G probably benign Het
Ell3 TCTCCTC TCTC 2: 121,269,937 (GRCm39) probably benign Het
Fbln1 T A 15: 85,169,357 (GRCm39) F699I probably damaging Het
Fndc1 A G 17: 7,990,685 (GRCm39) S1004P unknown Het
Gpr15 T A 16: 58,538,076 (GRCm39) T338S probably benign Het
Grin2d T C 7: 45,483,171 (GRCm39) Y1002C unknown Het
Hk2 C T 6: 82,707,859 (GRCm39) M703I probably benign Het
Ifi213 A C 1: 173,422,748 (GRCm39) L39R probably damaging Het
Kctd17 CAGCTGGAGGAGC CAGC 15: 78,321,113 (GRCm39) probably benign Het
Lama2 C A 10: 26,917,113 (GRCm39) A2271S probably benign Het
Lmo7 A T 14: 102,137,899 (GRCm39) Q867L probably benign Het
Loxhd1 T A 18: 77,492,512 (GRCm39) S1427T possibly damaging Het
Lzts1 A G 8: 69,593,397 (GRCm39) V70A probably damaging Het
Mocs3 A G 2: 168,073,257 (GRCm39) T235A possibly damaging Het
Myo15a G A 11: 60,408,016 (GRCm39) R3168H probably damaging Het
Ndc1 A G 4: 107,240,802 (GRCm39) D260G possibly damaging Het
Nfam1 T C 15: 82,900,730 (GRCm39) D44G probably damaging Het
Or4a47 G A 2: 89,666,029 (GRCm39) Q87* probably null Het
Osbpl10 G A 9: 114,996,322 (GRCm39) R128H probably benign Het
Otx1 C A 11: 21,949,392 (GRCm39) V29L probably benign Het
Pogk A T 1: 166,229,511 (GRCm39) D113E possibly damaging Het
Ptgs2 T C 1: 149,978,472 (GRCm39) F195L probably damaging Het
Ptpn21 T A 12: 98,648,881 (GRCm39) E925V possibly damaging Het
Ranbp2 T C 10: 58,326,470 (GRCm39) F2714L possibly damaging Het
Rbm20 T G 19: 53,839,744 (GRCm39) I911S possibly damaging Het
Rwdd2b A G 16: 87,233,509 (GRCm39) V197A possibly damaging Het
Sel1l2 C G 2: 140,117,329 (GRCm39) A181P probably damaging Het
Sf1 A G 19: 6,422,368 (GRCm39) E234G possibly damaging Het
Skint2 A C 4: 112,483,197 (GRCm39) T201P probably damaging Het
Sra1 C T 18: 36,809,948 (GRCm39) R199H probably damaging Het
Svs5 A G 2: 164,079,712 (GRCm39) M65T probably benign Het
Tgif1 C A 17: 71,153,544 (GRCm39) probably benign Het
Tmem184c A G 8: 78,331,411 (GRCm39) W113R possibly damaging Het
Tmem30a T C 9: 79,681,432 (GRCm39) R282G probably benign Het
Trank1 A G 9: 111,221,861 (GRCm39) Y2866C probably damaging Het
Trim7 A C 11: 48,740,346 (GRCm39) I148L probably damaging Het
Triml1 T A 8: 43,591,717 (GRCm39) M214L probably benign Het
Usp30 T G 5: 114,249,245 (GRCm39) V183G probably damaging Het
Vmn1r175 G A 7: 23,508,012 (GRCm39) S205F probably damaging Het
Zbtb32 CTTG CTTGTTG 7: 30,290,946 (GRCm39) probably benign Het
Zfp108 T A 7: 23,960,602 (GRCm39) C398S probably damaging Het
Zfp592 T G 7: 80,673,940 (GRCm39) D301E probably benign Het
Zfp764l1 C T 7: 126,992,496 (GRCm39) C38Y probably null Het
Other mutations in Top1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL02168:Top1 APN 2 160,546,893 (GRCm39) splice site probably null
IGL03083:Top1 APN 2 160,545,498 (GRCm39) missense probably damaging 0.97
IGL03242:Top1 APN 2 160,557,653 (GRCm39) missense probably damaging 1.00
IGL03369:Top1 APN 2 160,535,647 (GRCm39) missense unknown
Mainspring UTSW 2 160,556,158 (GRCm39) missense probably damaging 0.98
Taut UTSW 2 160,562,921 (GRCm39) missense probably damaging 0.99
unwind UTSW 2 160,546,739 (GRCm39) missense probably damaging 1.00
R0022:Top1 UTSW 2 160,544,719 (GRCm39) missense possibly damaging 0.62
R0449:Top1 UTSW 2 160,554,628 (GRCm39) nonsense probably null
R0501:Top1 UTSW 2 160,556,079 (GRCm39) missense probably damaging 1.00
R0564:Top1 UTSW 2 160,556,185 (GRCm39) missense probably damaging 0.98
R0946:Top1 UTSW 2 160,554,588 (GRCm39) nonsense probably null
R0972:Top1 UTSW 2 160,562,945 (GRCm39) missense probably damaging 1.00
R0976:Top1 UTSW 2 160,559,343 (GRCm39) missense possibly damaging 0.86
R1534:Top1 UTSW 2 160,556,152 (GRCm39) missense probably damaging 1.00
R1608:Top1 UTSW 2 160,545,515 (GRCm39) missense probably benign 0.01
R1655:Top1 UTSW 2 160,545,616 (GRCm39) critical splice donor site probably null
R1818:Top1 UTSW 2 160,557,643 (GRCm39) missense probably damaging 1.00
R1937:Top1 UTSW 2 160,512,042 (GRCm39) missense unknown
R2055:Top1 UTSW 2 160,544,748 (GRCm39) splice site probably benign
R2104:Top1 UTSW 2 160,546,739 (GRCm39) missense probably damaging 1.00
R3705:Top1 UTSW 2 160,544,744 (GRCm39) critical splice donor site probably null
R3769:Top1 UTSW 2 160,563,442 (GRCm39) missense probably damaging 1.00
R3770:Top1 UTSW 2 160,563,442 (GRCm39) missense probably damaging 1.00
R3801:Top1 UTSW 2 160,544,688 (GRCm39) missense probably damaging 1.00
R3804:Top1 UTSW 2 160,544,688 (GRCm39) missense probably damaging 1.00
R3928:Top1 UTSW 2 160,529,669 (GRCm39) splice site probably benign
R4598:Top1 UTSW 2 160,562,885 (GRCm39) missense possibly damaging 0.89
R4651:Top1 UTSW 2 160,554,637 (GRCm39) missense probably damaging 1.00
R4652:Top1 UTSW 2 160,554,637 (GRCm39) missense probably damaging 1.00
R4742:Top1 UTSW 2 160,545,490 (GRCm39) critical splice acceptor site probably null
R5523:Top1 UTSW 2 160,544,695 (GRCm39) nonsense probably null
R6292:Top1 UTSW 2 160,540,061 (GRCm39) missense probably benign 0.19
R6724:Top1 UTSW 2 160,554,616 (GRCm39) missense probably damaging 1.00
R7354:Top1 UTSW 2 160,546,878 (GRCm39) missense probably damaging 1.00
R7461:Top1 UTSW 2 160,554,762 (GRCm39) splice site probably null
R7843:Top1 UTSW 2 160,556,176 (GRCm39) missense possibly damaging 0.90
R7855:Top1 UTSW 2 160,556,008 (GRCm39) missense probably damaging 1.00
R8302:Top1 UTSW 2 160,545,496 (GRCm39) missense probably damaging 1.00
R8377:Top1 UTSW 2 160,488,009 (GRCm39) start gained probably benign
R8380:Top1 UTSW 2 160,559,315 (GRCm39) missense probably benign 0.00
R8381:Top1 UTSW 2 160,545,594 (GRCm39) missense probably null 0.77
R8392:Top1 UTSW 2 160,559,374 (GRCm39) nonsense probably null
R8713:Top1 UTSW 2 160,559,360 (GRCm39) missense probably damaging 0.98
R8773:Top1 UTSW 2 160,556,158 (GRCm39) missense probably damaging 0.98
R8844:Top1 UTSW 2 160,563,469 (GRCm39) missense probably damaging 1.00
R8949:Top1 UTSW 2 160,547,182 (GRCm39) missense possibly damaging 0.77
R8992:Top1 UTSW 2 160,562,921 (GRCm39) missense probably damaging 0.99
R9133:Top1 UTSW 2 160,545,591 (GRCm39) nonsense probably null
R9799:Top1 UTSW 2 160,563,406 (GRCm39) missense probably damaging 1.00
X0027:Top1 UTSW 2 160,563,438 (GRCm39) nonsense probably null
Predicted Primers PCR Primer
(F):5'- AGACACAGCCTTTGAATGGG -3'
(R):5'- GGGTCCTTCTGAATTAAACACCTG -3'

Sequencing Primer
(F):5'- AATGAGCTTGTGCCTTG -3'
(R):5'- AACACCTGAGATTCCTTTTCCCAAG -3'
Posted On 2020-06-30