Incidental Mutation 'R0422:Top2a'
ID 37139
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 038624-MU
Accession Numbers
Essential gene? Probably essential (E-score: 0.970) question?
Stock # R0422 (G1)
Quality Score 225
Status Not validated
Chromosome 11
Chromosomal Location 98883769-98915015 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 98900679 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Phenylalanine to Leucine at position 594 (F594L)
Ref Sequence ENSEMBL: ENSMUSP00000068896 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000068031]
AlphaFold Q01320
Predicted Effect probably damaging
Transcript: ENSMUST00000068031
AA Change: F594L

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000068896
Gene: ENSMUSG00000020914
AA Change: F594L

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: 99.3%
  • 3x: 98.7%
  • 10x: 97.3%
  • 20x: 95.6%
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: 56 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Acsm3 T A 7: 119,372,963 (GRCm39) Y155* probably null Het
Adamts16 A G 13: 70,887,074 (GRCm39) C937R probably damaging Het
Akna T C 4: 63,310,391 (GRCm39) D451G probably damaging Het
Alox12 A T 11: 70,145,384 (GRCm39) V63E probably damaging Het
Ap3b1 T C 13: 94,598,968 (GRCm39) I514T probably damaging Het
Arhgap23 T C 11: 97,354,478 (GRCm39) M286T probably damaging Het
Cdkl2 T C 5: 92,168,171 (GRCm39) D341G probably benign Het
Clip2 T C 5: 134,526,967 (GRCm39) D813G probably benign Het
Cntnap3 A G 13: 64,905,099 (GRCm39) V894A probably damaging Het
Coro2b T A 9: 62,335,259 (GRCm39) Y304F probably benign Het
Dclre1a T A 19: 56,532,567 (GRCm39) K676* probably null Het
Dmxl2 A G 9: 54,307,224 (GRCm39) probably null Het
Dpep3 A G 8: 106,702,750 (GRCm39) probably null Het
Efna5 C T 17: 62,914,414 (GRCm39) A177T probably benign Het
Fabp1 G A 6: 71,180,077 (GRCm39) V83I possibly damaging Het
H2-DMa G T 17: 34,356,921 (GRCm39) G140C probably damaging Het
Hectd4 T A 5: 121,481,145 (GRCm39) probably null Het
Hyou1 T A 9: 44,300,539 (GRCm39) N869K probably damaging Het
Ing1 G A 8: 11,611,933 (GRCm39) V124I probably damaging Het
Kalrn T A 16: 34,134,643 (GRCm39) I380F probably damaging Het
Kcnh1 A G 1: 192,019,888 (GRCm39) I378V probably benign Het
Kmt2c A G 5: 25,520,662 (GRCm39) V1816A probably benign Het
Matn2 G A 15: 34,435,917 (GRCm39) probably null Het
Naip2 C T 13: 100,297,621 (GRCm39) S805N probably benign Het
Napsa A C 7: 44,234,530 (GRCm39) Q254P probably damaging Het
Nat10 G T 2: 103,557,074 (GRCm39) S860* probably null Het
Nipbl T C 15: 8,381,112 (GRCm39) D560G probably benign Het
Nr3c2 A G 8: 77,912,596 (GRCm39) M736V probably benign Het
Or4k44 A T 2: 111,368,328 (GRCm39) F102Y probably damaging Het
Or7e174 A T 9: 20,012,744 (GRCm39) R230* probably null Het
Or8u8 A T 2: 86,011,566 (GRCm39) D296E probably benign Het
Palm3 A G 8: 84,755,492 (GRCm39) S335G possibly damaging Het
Panx1 G T 9: 14,919,112 (GRCm39) S249* probably null Het
Parvb A G 15: 84,179,812 (GRCm39) T231A probably benign Het
Pcdhb11 G T 18: 37,554,923 (GRCm39) L84F probably damaging Het
Pi4k2b T C 5: 52,925,096 (GRCm39) *447Q probably null Het
Ppp1r1a A G 15: 103,440,783 (GRCm39) S125P probably benign Het
Prss1 T A 6: 41,440,246 (GRCm39) D194E probably damaging Het
Rnf216 A T 5: 143,001,409 (GRCm39) C772* probably null Het
Rnf216 A T 5: 143,076,125 (GRCm39) F253Y probably benign Het
Rsf1 A T 7: 97,330,024 (GRCm39) E1183D probably benign Het
Rusc1 T C 3: 88,994,132 (GRCm39) T958A probably benign Het
Rxfp1 A G 3: 79,558,038 (GRCm39) M480T probably benign Het
Slc22a16 T A 10: 40,467,886 (GRCm39) V473E probably damaging Het
Slc26a3 A G 12: 31,515,848 (GRCm39) T583A possibly damaging Het
Slc7a15 T C 12: 8,584,400 (GRCm39) T117A probably benign Het
Slitrk6 A T 14: 110,987,364 (GRCm39) L781H probably damaging Het
Slitrk6 T A 14: 110,989,725 (GRCm39) probably benign Het
Spata31g1 T C 4: 42,972,199 (GRCm39) S511P possibly damaging Het
Spata7 A G 12: 98,624,524 (GRCm39) Y110C probably damaging Het
Supt16 T A 14: 52,421,453 (GRCm39) I31F probably benign Het
Taar7a T C 10: 23,869,172 (GRCm39) T70A probably benign Het
Unc13d C T 11: 115,960,846 (GRCm39) probably null Het
Unc80 T G 1: 66,522,497 (GRCm39) V233G probably damaging Het
Wdr91 A T 6: 34,857,781 (GRCm39) D735E probably damaging Het
Zzef1 A G 11: 72,756,917 (GRCm39) T1141A possibly 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
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
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'- TGAGCACACTGAGAGTGACCTCTG -3'
(R):5'- GGTTCCCACATCAAAGGCTTGCTG -3'

Sequencing Primer
(F):5'- CTTCAGGGCCAGAGTATTTGAAC -3'
(R):5'- AGGCTTGCTGATCAATTTTATCC -3'
Posted On 2013-05-09