Incidental Mutation 'R4939:Top2a'
ID 382941
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 042538-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.970) question?
Stock # R4939 (G1)
Quality Score 225
Status Not validated
Chromosome 11
Chromosomal Location 98883769-98915015 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to A at 98900918 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Histidine to Leucine at position 557 (H557L)
Ref Sequence ENSEMBL: ENSMUSP00000068896 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000068031]
AlphaFold Q01320
Predicted Effect probably damaging
Transcript: ENSMUST00000068031
AA Change: H557L

PolyPhen 2 Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000068896
Gene: ENSMUSG00000020914
AA Change: H557L

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: ENSMUST00000144318
Coding Region Coverage
  • 1x: 99.1%
  • 3x: 98.4%
  • 10x: 96.6%
  • 20x: 93.4%
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 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: 85 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adamtsl1 A T 4: 86,161,962 (GRCm39) Y365F possibly damaging Het
Atp2a1 T C 7: 126,049,288 (GRCm39) M585V probably benign Het
Brca1 A G 11: 101,398,876 (GRCm39) V1572A probably benign Het
C1ql4 A T 15: 98,985,521 (GRCm39) M30K probably damaging Het
Ccdc73 A G 2: 104,822,502 (GRCm39) probably null Het
Cdk6 A T 5: 3,394,377 (GRCm39) D4V probably null Het
Celf3 ACAGCAGCAGCAGCAGCAGCAGCA ACAGCAGCAGCAGCAGCAGCA 3: 94,395,537 (GRCm39) probably benign Het
Clic4 T C 4: 134,950,852 (GRCm39) E113G probably benign Het
Creld1 C A 6: 113,465,140 (GRCm39) H122Q probably benign Het
Cyp4a29 G A 4: 115,104,873 (GRCm39) probably null Het
Dnaaf3 A T 7: 4,530,144 (GRCm39) S246R probably damaging Het
Dnah12 A T 14: 26,613,481 (GRCm39) T3925S probably damaging Het
Dnajc21 T A 15: 10,449,683 (GRCm39) D446V probably damaging Het
Dock8 A T 19: 25,099,764 (GRCm39) Y629F probably damaging Het
Duxf4 T C 10: 58,071,425 (GRCm39) N263S probably benign Het
E2f8 A T 7: 48,521,886 (GRCm39) N405K probably benign Het
Flg A G 3: 93,187,154 (GRCm39) N202S probably benign Het
Glyatl3 A G 17: 41,220,914 (GRCm39) probably null Het
Gm38999 A G 7: 43,077,885 (GRCm39) T63A possibly damaging Het
Grap A G 11: 61,551,124 (GRCm39) Y52C probably damaging Het
Haus2 T A 2: 120,449,517 (GRCm39) I187K probably damaging Het
Heatr5b T C 17: 79,069,689 (GRCm39) E1686G probably benign Het
Herc2 A G 7: 55,856,484 (GRCm39) D3944G probably damaging Het
Hexd A T 11: 121,098,542 (GRCm39) M9L probably benign Het
Hoxa3 T C 6: 52,147,656 (GRCm39) probably benign Het
Hspg2 A T 4: 137,235,342 (GRCm39) I126F probably damaging Het
Itpr1 T A 6: 108,417,519 (GRCm39) C123* probably null Het
Jmjd1c T A 10: 67,081,916 (GRCm39) N2346K possibly damaging Het
Kctd9 A G 14: 67,967,135 (GRCm39) Y37C probably damaging Het
Kmt5b A C 19: 3,865,245 (GRCm39) S747R possibly damaging Het
Krt26 T C 11: 99,225,522 (GRCm39) M320V probably benign Het
Lama1 T G 17: 68,044,470 (GRCm39) V123G possibly damaging Het
Lamc2 T C 1: 153,002,582 (GRCm39) D1103G probably damaging Het
Lepr A T 4: 101,590,635 (GRCm39) K71I possibly damaging Het
Llgl1 A T 11: 60,600,805 (GRCm39) probably null Het
Mcoln2 A T 3: 145,897,996 (GRCm39) H39L probably benign Het
Mtrex T C 13: 113,046,426 (GRCm39) D308G possibly damaging Het
Myh11 T A 16: 14,057,371 (GRCm39) T315S probably benign Het
Ncapd3 T C 9: 26,975,165 (GRCm39) probably null Het
Nlrp9b G T 7: 19,758,421 (GRCm39) V553F probably damaging Het
Nubpl A G 12: 52,227,878 (GRCm39) N129S probably damaging Het
Nup214 C A 2: 31,873,171 (GRCm39) T255K probably benign Het
Or10j3 T C 1: 173,031,030 (GRCm39) Y36H possibly damaging Het
Or2t46 G T 11: 58,472,037 (GRCm39) M122I probably damaging Het
Or2y17 A G 11: 49,231,376 (GRCm39) T6A probably benign Het
Or4d1 G T 11: 87,804,950 (GRCm39) P261T probably damaging Het
Or52z14 T C 7: 103,253,458 (GRCm39) V199A probably benign Het
Or5b3 T A 19: 13,388,219 (GRCm39) N95K probably benign Het
Orc3 G A 4: 34,593,126 (GRCm39) Q256* probably null Het
Pbrm1 A G 14: 30,783,580 (GRCm39) M566V probably damaging Het
Pde6b A G 5: 108,569,363 (GRCm39) I357V probably benign Het
Pkdrej A G 15: 85,704,484 (GRCm39) I484T possibly damaging Het
Plvap A G 8: 71,964,083 (GRCm39) V93A probably benign Het
Plxna4 T C 6: 32,142,697 (GRCm39) Y1586C probably damaging Het
Ppfia4 A T 1: 134,255,817 (GRCm39) L196Q possibly damaging Het
Ptpn13 T G 5: 103,665,335 (GRCm39) probably null Het
Ranbp17 T C 11: 33,169,223 (GRCm39) N997S probably benign Het
Rpap2 G T 5: 107,751,491 (GRCm39) probably null Het
Rrm1 T C 7: 102,116,131 (GRCm39) V683A probably benign Het
Ruvbl1 A G 6: 88,460,021 (GRCm39) probably null Het
Sh3pxd2a A G 19: 47,266,843 (GRCm39) Y277H probably damaging Het
Shank1 C T 7: 43,975,586 (GRCm39) P477S unknown Het
Shtn1 T C 19: 59,010,633 (GRCm39) E278G probably benign Het
Skap2 T A 6: 51,899,303 (GRCm39) I109F possibly damaging Het
Slc28a3 A C 13: 58,706,395 (GRCm39) I615M probably benign Het
Slc4a11 A G 2: 130,526,788 (GRCm39) L780P probably damaging Het
Slc5a4b T C 10: 75,917,301 (GRCm39) E245G probably benign Het
Slfn8 C T 11: 82,894,111 (GRCm39) A843T probably benign Het
Sncaip A T 18: 53,040,335 (GRCm39) Q843L possibly damaging Het
Spidr T A 16: 15,958,610 (GRCm39) K51* probably null Het
Spopfm2 A T 3: 94,083,540 (GRCm39) Y90* probably null Het
Tas2r123 T C 6: 132,824,808 (GRCm39) V235A probably benign Het
Tgfbr3 T C 5: 107,278,335 (GRCm39) D757G probably benign Het
Tmem132d A T 5: 127,873,139 (GRCm39) V490D probably damaging Het
Trafd1 A G 5: 121,513,254 (GRCm39) I328T probably benign Het
Trappc11 G A 8: 47,972,700 (GRCm39) A291V probably damaging Het
Tuba1c A G 15: 98,935,835 (GRCm39) Y432C probably damaging Het
Utp11 T G 4: 124,577,043 (GRCm39) R109S possibly damaging Het
Vmn1r159 T G 7: 22,542,316 (GRCm39) T239P probably damaging Het
Vwce A T 19: 10,622,414 (GRCm39) N239Y probably damaging Het
Yes1 T C 5: 32,802,457 (GRCm39) probably null Het
Zfand6 A C 7: 84,265,030 (GRCm39) *224G probably null Het
Zfp408 A T 2: 91,475,450 (GRCm39) I668N probably damaging Het
Zfp647 TGCACG TGCACGCACG 15: 76,795,244 (GRCm39) probably null Het
Zfp946 T C 17: 22,674,418 (GRCm39) F391L probably damaging 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
R1565:Top2a UTSW 11 98,891,880 (GRCm39) missense probably damaging 0.99
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
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'- CTGTGGCTTTGCACATTGTC -3'
(R):5'- TCTCTAGCAAACATCCTGTCAG -3'

Sequencing Primer
(F):5'- GTCGACTCCCTGACTTAGCATAG -3'
(R):5'- TAGCAAACATCCTGTCAGAAAAGCTG -3'
Posted On 2016-04-27