Incidental Mutation 'R0599:Top2a'
ID 55243
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 038788-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.970) question?
Stock # R0599 (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 98892243 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Isoleucine to Threonine at position 1073 (I1073T)
Ref Sequence ENSEMBL: ENSMUSP00000068896 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000068031]
AlphaFold Q01320
Predicted Effect probably damaging
Transcript: ENSMUST00000068031
AA Change: I1073T

PolyPhen 2 Score 0.991 (Sensitivity: 0.71; Specificity: 0.97)
SMART Domains Protein: ENSMUSP00000068896
Gene: ENSMUSG00000020914
AA Change: I1073T

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 0.3063 question?
Coding Region Coverage
  • 1x: 99.4%
  • 3x: 98.9%
  • 10x: 97.5%
  • 20x: 95.0%
Validation Efficiency 98% (80/82)
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: 78 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
A2ml1 A G 6: 128,529,208 (GRCm39) L978P probably damaging Het
Abcb1a C T 5: 8,748,539 (GRCm39) T290M probably benign Het
Abcd3 A T 3: 121,558,742 (GRCm39) F585I probably damaging Het
Abtb3 G A 10: 85,494,200 (GRCm39) G1106D probably damaging Het
Acan A G 7: 78,761,038 (GRCm39) probably benign Het
Anxa6 T C 11: 54,870,292 (GRCm39) D667G possibly damaging Het
Ap3m2 G T 8: 23,283,128 (GRCm39) A208D possibly damaging Het
Arhgap17 A T 7: 122,903,013 (GRCm39) probably benign Het
Bptf A G 11: 106,959,208 (GRCm39) V1838A probably damaging Het
Brip1 T A 11: 86,043,563 (GRCm39) M334L probably benign Het
Btbd10 C T 7: 112,934,516 (GRCm39) probably benign Het
Cdh20 C A 1: 109,980,696 (GRCm39) T208K probably damaging Het
Cnga4 A G 7: 105,055,025 (GRCm39) Y100C probably damaging Het
Dnah10 G A 5: 124,878,017 (GRCm39) V2644M probably damaging Het
Dnah9 T C 11: 65,856,515 (GRCm39) D2882G probably damaging Het
Eapp T A 12: 54,732,747 (GRCm39) K117M probably damaging Het
Eml3 T C 19: 8,916,427 (GRCm39) V673A probably benign Het
Ephb4 G A 5: 137,368,117 (GRCm39) C754Y probably damaging Het
Eps8l1 A G 7: 4,480,956 (GRCm39) D33G possibly damaging Het
Farsa A G 8: 85,594,212 (GRCm39) K321E probably damaging Het
Fry G A 5: 150,360,624 (GRCm39) R2090Q probably damaging Het
Gm10283 A G 8: 60,954,258 (GRCm39) probably benign Het
Grm4 A G 17: 27,650,464 (GRCm39) I844T probably benign Het
Gtf2h3 A G 5: 124,726,691 (GRCm39) D124G probably benign Het
Gulo A T 14: 66,227,890 (GRCm39) D347E probably damaging Het
Hmcn1 A G 1: 150,485,552 (GRCm39) F4350S possibly damaging Het
Hspg2 A G 4: 137,239,712 (GRCm39) D473G probably damaging Het
Il17ra T A 6: 120,458,466 (GRCm39) I539N probably damaging Het
Insrr A G 3: 87,720,440 (GRCm39) E1026G probably damaging Het
Itga2 A T 13: 114,993,186 (GRCm39) probably benign Het
Kdm1b A T 13: 47,212,286 (GRCm39) D190V possibly damaging Het
Lima1 A T 15: 99,700,040 (GRCm39) N146K probably damaging Het
Mnt G T 11: 74,733,122 (GRCm39) V85L probably benign Het
Mon2 T A 10: 122,861,970 (GRCm39) probably benign Het
Mtf1 T C 4: 124,713,994 (GRCm39) probably benign Het
Mylk4 T C 13: 32,896,737 (GRCm39) probably null Het
Myo18b A C 5: 113,013,616 (GRCm39) L780R probably damaging Het
Myo1e A G 9: 70,283,942 (GRCm39) probably benign Het
Obscn A G 11: 58,964,522 (GRCm39) S705P probably damaging Het
Ocrl A T X: 47,024,963 (GRCm39) probably benign Het
Or1e34 A T 11: 73,778,730 (GRCm39) M156K probably benign Het
Or4c35 T C 2: 89,808,545 (GRCm39) F141S probably benign Het
Or51k1 A T 7: 103,661,395 (GRCm39) C171* probably null Het
Or52ab4 A G 7: 102,987,393 (GRCm39) N44S probably damaging Het
Otof T A 5: 30,528,049 (GRCm39) K1931N probably damaging Het
Plcxd3 A G 15: 4,546,349 (GRCm39) S118G probably damaging Het
Plcz1 T A 6: 139,974,268 (GRCm39) Q58L probably benign Het
Proser1 C A 3: 53,386,485 (GRCm39) P789Q probably benign Het
Rassf4 T C 6: 116,622,897 (GRCm39) E38G probably damaging Het
Ros1 A T 10: 51,999,396 (GRCm39) Y1164N probably damaging Het
Rpgrip1l A G 8: 92,031,628 (GRCm39) I83T probably damaging Het
Scn9a T G 2: 66,357,143 (GRCm39) K1053Q probably damaging Het
Sgsm1 G T 5: 113,392,894 (GRCm39) Q1087K probably damaging Het
Slc16a10 T C 10: 40,017,914 (GRCm39) D40G probably benign Het
Slc27a6 A G 18: 58,689,885 (GRCm39) D117G probably damaging Het
Slc2a9 T A 5: 38,637,487 (GRCm39) probably benign Het
Slc4a1 A G 11: 102,248,741 (GRCm39) probably benign Het
Smarca1 T A X: 46,912,303 (GRCm39) Q982L probably benign Het
Sp100 T A 1: 85,608,831 (GRCm39) I320N possibly damaging Het
Stx8 A T 11: 68,000,188 (GRCm39) R209S probably null Het
Sulf2 T C 2: 165,925,799 (GRCm39) T453A possibly damaging Het
Syne2 AGAGTGAG AGAGTGAGTGAG 12: 76,144,734 (GRCm39) probably null Het
Tenm2 T A 11: 35,915,607 (GRCm39) I1976F possibly damaging Het
Tenm3 G A 8: 48,730,745 (GRCm39) S1341L probably damaging Het
Tmem130 C T 5: 144,674,619 (GRCm39) V369M probably damaging Het
Tmem200c A G 17: 69,147,506 (GRCm39) K30E probably damaging Het
Tmem225 A G 9: 40,061,043 (GRCm39) I117V possibly damaging Het
Tmt1a3 A T 15: 100,233,264 (GRCm39) N152Y possibly damaging Het
Trps1 A C 15: 50,695,256 (GRCm39) Y296* probably null Het
Tubg1 T C 11: 101,016,162 (GRCm39) M377T probably benign Het
Tut7 A G 13: 59,957,301 (GRCm39) V7A probably damaging Het
Vmn1r35 G A 6: 66,656,497 (GRCm39) H58Y probably benign Het
Vmn1r56 G A 7: 5,199,429 (GRCm39) H63Y probably benign Het
Vmn1r75 T C 7: 11,615,189 (GRCm39) probably null Het
Vnn3 T C 10: 23,741,603 (GRCm39) S303P possibly damaging Het
Wdr49 C T 3: 75,338,383 (GRCm39) probably null Het
Wdr49 T C 3: 75,357,197 (GRCm39) probably null Het
Zzef1 T C 11: 72,804,004 (GRCm39) L2582P 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
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
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'- TGCCTGATGAGTGCCAGAGCAAG -3'
(R):5'- CCCAACGTGCTGCTGAAATCAAAG -3'

Sequencing Primer
(F):5'- TGCCAGAGCAAGAGGTAAGTG -3'
(R):5'- cgaactcagaaatctacctgcc -3'
Posted On 2013-07-11