Incidental Mutation 'R1565:Top2a'
ID 175214
Institutional Source Beutler Lab
Gene Symbol Top2a
Ensembl Gene ENSMUSG00000020914
Gene Name topoisomerase (DNA) II alpha
Synonyms DNA Topoisomerase II alpha, Top-2
MMRRC Submission 039604-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.970) question?
Stock # R1565 (G1)
Quality Score 225
Status Validated
Chromosome 11
Chromosomal Location 98883769-98915015 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 98891880 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Phenylalanine to Leucine at position 1122 (F1122L)
Ref Sequence ENSEMBL: ENSMUSP00000068896 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000068031]
AlphaFold Q01320
Predicted Effect probably damaging
Transcript: ENSMUST00000068031
AA Change: F1122L

PolyPhen 2 Score 0.992 (Sensitivity: 0.70; Specificity: 0.97)
SMART Domains Protein: ENSMUSP00000068896
Gene: ENSMUSG00000020914
AA Change: F1122L

DomainStartEndE-ValueType
low complexity region 10 21 N/A INTRINSIC
Blast:TOP2c 22 60 3e-12 BLAST
HATPase_c 75 224 1.81e-2 SMART
TOP2c 79 669 N/A SMART
TOP4c 692 1166 3.58e-234 SMART
low complexity region 1192 1202 N/A INTRINSIC
low complexity region 1226 1238 N/A INTRINSIC
low complexity region 1261 1273 N/A INTRINSIC
low complexity region 1291 1306 N/A INTRINSIC
low complexity region 1407 1418 N/A INTRINSIC
Pfam:DTHCT 1425 1518 1.1e-18 PFAM
Predicted Effect noncoding transcript
Transcript: ENSMUST00000104097
Predicted Effect noncoding transcript
Transcript: ENSMUST00000144318
Predicted Effect noncoding transcript
Transcript: ENSMUST00000151997
Meta Mutation Damage Score 0.6462 question?
Coding Region Coverage
  • 1x: 99.0%
  • 3x: 98.1%
  • 10x: 95.5%
  • 20x: 90.0%
Validation Efficiency 96% (82/85)
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 nuclear enzyme is involved in processes such as chromosome condensation, chromatid separation, and the relief of torsional stress that occurs during DNA transcription and replication. It catalyzes the transient breaking and rejoining of two strands of duplex DNA which allows the strands to pass through one another, thus altering the topology of DNA. Two forms of this enzyme exist as likely products of a gene duplication event. The gene encoding this form, alpha, is localized to chromosome 17 and the beta gene is localized to chromosome 3. The gene encoding this enzyme functions as the target for several anticancer agents and a variety of mutations in this gene have been associated with the development of drug resistance. Reduced activity of this enzyme may also play a role in ataxia-telangiectasia. [provided by RefSeq, Jul 2010]
Allele List at MGI

All alleles(47) : Targeted(1) Gene trapped(46)

Other mutations in this stock
Total: 74 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
2810021J22Rik G A 11: 58,771,327 (GRCm39) G270S probably benign Het
Abtb1 T C 6: 88,813,536 (GRCm39) T401A probably benign Het
Adamts14 A T 10: 61,106,676 (GRCm39) M148K probably damaging Het
Adcy5 A G 16: 35,089,327 (GRCm39) E508G probably damaging Het
Ankfy1 T A 11: 72,648,144 (GRCm39) L875H probably damaging Het
Cacng3 A T 7: 122,367,624 (GRCm39) D168V probably damaging Het
Clpb G A 7: 101,434,668 (GRCm39) R488Q probably benign Het
Cltrn A G X: 162,901,230 (GRCm39) D184G possibly damaging Het
Cpxm2 A T 7: 131,663,874 (GRCm39) Y350N probably damaging Het
D130040H23Rik T A 8: 69,755,812 (GRCm39) *406R probably null Het
Dnah10 T A 5: 124,906,678 (GRCm39) D4236E probably damaging Het
Dpf3 T A 12: 83,417,391 (GRCm39) Y27F probably damaging Het
Esp4 T C 17: 40,913,486 (GRCm39) *118Q probably null Het
Fam222b T C 11: 78,045,488 (GRCm39) S222P possibly damaging Het
Flnc T C 6: 29,455,170 (GRCm39) V1933A probably damaging Het
Gem T C 4: 11,713,709 (GRCm39) F282L possibly damaging Het
Gli2 T C 1: 118,769,660 (GRCm39) T631A possibly damaging Het
Gpld1 T A 13: 25,140,051 (GRCm39) V116E probably damaging Het
Gpr176 A G 2: 118,110,695 (GRCm39) M188T probably benign Het
Grk5 T C 19: 61,078,410 (GRCm39) V489A probably damaging Het
Hpdl T C 4: 116,678,080 (GRCm39) N127S probably damaging Het
Hsd17b8 C T 17: 34,246,469 (GRCm39) V105I possibly damaging Het
Id4 G T 13: 48,415,770 (GRCm39) V151L possibly damaging Het
Kcnh8 G T 17: 53,263,909 (GRCm39) G802V probably benign Het
Lamc1 C A 1: 153,118,489 (GRCm39) S894I probably benign Het
Larp1b A G 3: 40,926,819 (GRCm39) N184S probably damaging Het
Lhx1 A T 11: 84,410,647 (GRCm39) S226T probably benign Het
Lmo7 A T 14: 102,124,957 (GRCm39) Q472L probably damaging Het
Mog G C 17: 37,328,474 (GRCm39) N152K possibly damaging Het
Mttp A G 3: 137,822,166 (GRCm39) probably null Het
Mycbp2 A G 14: 103,489,945 (GRCm39) V953A possibly damaging Het
Myo3a A T 2: 22,345,091 (GRCm39) Y509F probably damaging Het
Myo9b A G 8: 71,767,836 (GRCm39) N303S possibly damaging Het
Nek3 T C 8: 22,622,217 (GRCm39) probably null Het
Nlrc4 A T 17: 74,748,926 (GRCm39) D771E probably benign Het
Nup160 A T 2: 90,552,405 (GRCm39) N1127I possibly damaging Het
Oas1h A T 5: 121,000,663 (GRCm39) N91I probably damaging Het
Or13p4 T A 4: 118,547,389 (GRCm39) N87Y probably damaging Het
Or4c120 A T 2: 89,000,971 (GRCm39) V195D probably benign Het
Or4c121 G T 2: 89,024,227 (GRCm39) S50R probably damaging Het
Parp4 T C 14: 56,827,329 (GRCm39) probably benign Het
Pi4ka G A 16: 17,099,764 (GRCm39) C96Y probably null Het
Pira2 A T 7: 3,847,548 (GRCm39) F47Y probably damaging Het
Pkhd1 C A 1: 20,417,681 (GRCm39) G2490V probably damaging Het
Plekhg1 C T 10: 3,890,526 (GRCm39) T394I probably damaging Het
Pramel22 G A 4: 143,382,187 (GRCm39) Q170* probably null Het
Psmd1 T C 1: 86,019,719 (GRCm39) probably benign Het
Rab3ip A T 10: 116,775,128 (GRCm39) C77S probably benign Het
Reln A T 5: 22,130,211 (GRCm39) M2700K probably benign Het
Rfx1 A G 8: 84,800,575 (GRCm39) T59A probably benign Het
Ric8b G T 10: 84,815,963 (GRCm39) V405L probably benign Het
Rufy3 G T 5: 88,788,491 (GRCm39) A479S probably damaging Het
Sardh A T 2: 27,132,731 (GRCm39) Y166N probably damaging Het
Slamf6 T G 1: 171,761,975 (GRCm39) V132G possibly damaging Het
Slc12a3 T G 8: 95,072,505 (GRCm39) H674Q possibly damaging Het
Sned1 G A 1: 93,209,376 (GRCm39) V830M possibly damaging Het
Srsf9 A G 5: 115,465,429 (GRCm39) N21S possibly damaging Het
Stkld1 A T 2: 26,840,102 (GRCm39) T391S probably benign Het
Sumf2 C A 5: 129,888,755 (GRCm39) N230K probably damaging Het
Tbc1d22a T C 15: 86,119,770 (GRCm39) V22A possibly damaging Het
Thsd7b T A 1: 129,523,778 (GRCm39) S194T possibly damaging Het
Tnn T A 1: 159,924,835 (GRCm39) Y1173F probably damaging Het
Trappc9 G A 15: 72,897,816 (GRCm39) R377W probably damaging Het
Trim39 G A 17: 36,579,746 (GRCm39) R70W probably damaging Het
Ttn G A 2: 76,624,605 (GRCm39) T15289I probably damaging Het
Ugt2b38 A T 5: 87,559,773 (GRCm39) V373E probably damaging Het
Usp54 A G 14: 20,657,227 (GRCm39) S24P probably damaging Het
Vmn2r27 C T 6: 124,208,593 (GRCm39) G51S probably benign Het
Xylt2 C T 11: 94,558,420 (GRCm39) A579T probably benign Het
Zbtb21 A G 16: 97,753,627 (GRCm39) S247P probably benign Het
Zc3h7b C T 15: 81,661,289 (GRCm39) P376L probably benign Het
Zfp251 T A 15: 76,737,238 (GRCm39) R613S probably damaging Het
Zfp251 C T 15: 76,737,239 (GRCm39) R613K possibly damaging Het
Zfp91 T C 19: 12,756,439 (GRCm39) D135G probably benign Het
Other mutations in Top2a
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00518:Top2a APN 11 98,909,647 (GRCm39) nonsense probably null
IGL01285:Top2a APN 11 98,896,985 (GRCm39) splice site probably benign
IGL01445:Top2a APN 11 98,901,856 (GRCm39) missense probably damaging 1.00
IGL01451:Top2a APN 11 98,901,856 (GRCm39) missense probably damaging 1.00
IGL01456:Top2a APN 11 98,901,856 (GRCm39) missense probably damaging 1.00
IGL01458:Top2a APN 11 98,901,856 (GRCm39) missense probably damaging 1.00
IGL01481:Top2a APN 11 98,901,856 (GRCm39) missense probably damaging 1.00
IGL01485:Top2a APN 11 98,901,856 (GRCm39) missense probably damaging 1.00
IGL01753:Top2a APN 11 98,898,100 (GRCm39) missense probably damaging 0.97
IGL03029:Top2a APN 11 98,909,625 (GRCm39) missense probably benign 0.03
PIT4581001:Top2a UTSW 11 98,893,790 (GRCm39) missense probably damaging 0.97
PIT4585001:Top2a UTSW 11 98,892,199 (GRCm39) missense probably benign 0.02
R0008:Top2a UTSW 11 98,893,729 (GRCm39) nonsense probably null
R0047:Top2a UTSW 11 98,888,682 (GRCm39) missense probably benign
R0047:Top2a UTSW 11 98,888,682 (GRCm39) missense probably benign
R0070:Top2a UTSW 11 98,905,886 (GRCm39) critical splice acceptor site probably null
R0070:Top2a UTSW 11 98,905,886 (GRCm39) critical splice acceptor site probably null
R0116:Top2a UTSW 11 98,894,416 (GRCm39) missense probably benign 0.00
R0245:Top2a UTSW 11 98,900,922 (GRCm39) missense probably benign 0.37
R0276:Top2a UTSW 11 98,900,733 (GRCm39) splice site probably benign
R0288:Top2a UTSW 11 98,907,249 (GRCm39) splice site probably benign
R0335:Top2a UTSW 11 98,913,781 (GRCm39) missense probably benign 0.08
R0422:Top2a UTSW 11 98,900,679 (GRCm39) missense probably damaging 1.00
R0546:Top2a UTSW 11 98,890,052 (GRCm39) missense possibly damaging 0.75
R0558:Top2a UTSW 11 98,887,665 (GRCm39) missense probably benign
R0599:Top2a UTSW 11 98,892,243 (GRCm39) missense probably damaging 0.99
R0727:Top2a UTSW 11 98,902,974 (GRCm39) nonsense probably null
R1674:Top2a UTSW 11 98,900,099 (GRCm39) missense probably damaging 0.96
R1844:Top2a UTSW 11 98,906,895 (GRCm39) missense probably benign 0.06
R1959:Top2a UTSW 11 98,886,803 (GRCm39) splice site probably null
R2124:Top2a UTSW 11 98,895,054 (GRCm39) missense probably benign 0.00
R2128:Top2a UTSW 11 98,900,633 (GRCm39) missense probably damaging 0.97
R3707:Top2a UTSW 11 98,887,651 (GRCm39) missense probably benign 0.13
R4110:Top2a UTSW 11 98,913,786 (GRCm39) missense probably damaging 1.00
R4112:Top2a UTSW 11 98,913,786 (GRCm39) missense probably damaging 1.00
R4423:Top2a UTSW 11 98,892,231 (GRCm39) missense probably benign 0.00
R4425:Top2a UTSW 11 98,892,231 (GRCm39) missense probably benign 0.00
R4914:Top2a UTSW 11 98,893,786 (GRCm39) missense probably damaging 1.00
R4939:Top2a UTSW 11 98,900,918 (GRCm39) missense probably damaging 1.00
R4944:Top2a UTSW 11 98,888,676 (GRCm39) missense probably benign 0.37
R4971:Top2a UTSW 11 98,884,667 (GRCm39) missense probably damaging 1.00
R5362:Top2a UTSW 11 98,909,738 (GRCm39) missense probably damaging 1.00
R5477:Top2a UTSW 11 98,907,306 (GRCm39) nonsense probably null
R5499:Top2a UTSW 11 98,913,202 (GRCm39) missense probably benign 0.20
R5911:Top2a UTSW 11 98,907,291 (GRCm39) missense possibly damaging 0.92
R7126:Top2a UTSW 11 98,905,818 (GRCm39) missense probably benign 0.09
R7131:Top2a UTSW 11 98,895,008 (GRCm39) missense possibly damaging 0.75
R7174:Top2a UTSW 11 98,914,922 (GRCm39) start gained probably benign
R7329:Top2a UTSW 11 98,895,072 (GRCm39) missense possibly damaging 0.57
R7560:Top2a UTSW 11 98,891,663 (GRCm39) missense probably benign
R7563:Top2a UTSW 11 98,907,005 (GRCm39) missense probably damaging 1.00
R7740:Top2a UTSW 11 98,884,640 (GRCm39) missense probably benign 0.34
R7841:Top2a UTSW 11 98,913,176 (GRCm39) missense probably damaging 1.00
R7894:Top2a UTSW 11 98,900,431 (GRCm39) missense probably damaging 1.00
R8122:Top2a UTSW 11 98,889,993 (GRCm39) missense probably benign
R8260:Top2a UTSW 11 98,891,595 (GRCm39) missense probably null 0.87
R8504:Top2a UTSW 11 98,905,567 (GRCm39) missense probably benign
R8550:Top2a UTSW 11 98,886,744 (GRCm39) missense probably benign
R8558:Top2a UTSW 11 98,912,549 (GRCm39) missense probably damaging 1.00
R8693:Top2a UTSW 11 98,900,868 (GRCm39) missense probably damaging 1.00
R8851:Top2a UTSW 11 98,900,677 (GRCm39) missense probably damaging 1.00
R9143:Top2a UTSW 11 98,900,705 (GRCm39) missense probably benign 0.14
R9240:Top2a UTSW 11 98,901,368 (GRCm39) nonsense probably null
R9294:Top2a UTSW 11 98,891,904 (GRCm39) missense probably benign 0.00
R9301:Top2a UTSW 11 98,897,790 (GRCm39) missense probably damaging 0.99
R9383:Top2a UTSW 11 98,901,884 (GRCm39) nonsense probably null
R9450:Top2a UTSW 11 98,894,434 (GRCm39) missense possibly damaging 0.73
R9515:Top2a UTSW 11 98,902,970 (GRCm39) missense probably damaging 0.99
R9655:Top2a UTSW 11 98,905,334 (GRCm39) missense probably damaging 1.00
R9683:Top2a UTSW 11 98,887,683 (GRCm39) missense probably benign 0.21
R9689:Top2a UTSW 11 98,914,883 (GRCm39) missense probably benign 0.01
U24488:Top2a UTSW 11 98,913,252 (GRCm39) missense probably damaging 1.00
X0025:Top2a UTSW 11 98,886,767 (GRCm39) missense probably benign 0.32
Predicted Primers PCR Primer
(F):5'- AGGAGTGTTTTCAAGCAGAACCCAG -3'
(R):5'- TTAGCCACTTGCTAAGCTCCGAGG -3'

Sequencing Primer
(F):5'- GTTAAATTTCCCACCAGGACAG -3'
(R):5'- TCTGGCACTCATCAGGCAG -3'
Posted On 2014-04-24