Incidental Mutation 'PIT4585001:Top2a'
ID 556620
Institutional Source Beutler Lab
Gene Symbol Top2a
Ensembl Gene ENSMUSG00000020914
Gene Name topoisomerase (DNA) II alpha
Synonyms DNA Topoisomerase II alpha, Top-2
Accession Numbers
Essential gene? Probably essential (E-score: 0.971) question?
Stock # PIT4585001 (G1)
Quality Score 194.009
Status Not validated
Chromosome 11
Chromosomal Location 98883769-98915015 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) C to T at 98892199 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Alanine to Threonine at position 1088 (A1088T)
Ref Sequence ENSEMBL: ENSMUSP00000068896 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000068031]
AlphaFold Q01320
Predicted Effect probably benign
Transcript: ENSMUST00000068031
AA Change: A1088T

PolyPhen 2 Score 0.021 (Sensitivity: 0.95; Specificity: 0.80)
SMART Domains Protein: ENSMUSP00000068896
Gene: ENSMUSG00000020914
AA Change: A1088T

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
Coding Region Coverage
  • 1x: 93.6%
  • 3x: 91.2%
  • 10x: 86.5%
  • 20x: 76.8%
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: 55 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Aurka T C 2: 172,199,117 (GRCm39) M318V probably benign Het
Cacna2d1 T A 5: 16,531,342 (GRCm39) D560E probably damaging Het
Ccdc148 T A 2: 58,872,988 (GRCm39) T202S probably benign Het
Cdc42bpb T C 12: 111,271,412 (GRCm39) D1149G probably damaging Het
Clasp1 T A 1: 118,390,285 (GRCm39) N156K probably damaging Het
Cox18 G A 5: 90,365,434 (GRCm39) T255I possibly damaging Het
Cse1l A G 2: 166,783,394 (GRCm39) T783A probably damaging Het
Dnajc16 T C 4: 141,491,996 (GRCm39) Y609C probably damaging Het
Doc2g A G 19: 4,056,630 (GRCm39) T339A probably benign Het
Eif5a T C 11: 69,808,896 (GRCm39) probably benign Het
Epha3 A G 16: 63,386,940 (GRCm39) probably null Het
Esco1 A T 18: 10,594,355 (GRCm39) C310* probably null Het
Fam222a A G 5: 114,749,101 (GRCm39) Y99C probably damaging Het
Fzd2 T C 11: 102,496,573 (GRCm39) L339P probably damaging Het
Gfral A T 9: 76,104,576 (GRCm39) N145K probably damaging Het
Gga1 T A 15: 78,777,990 (GRCm39) N618K probably benign Het
Gpatch3 T A 4: 133,310,397 (GRCm39) H447Q probably damaging Het
Gpn1 A T 5: 31,666,747 (GRCm39) R346* probably null Het
Gsg1 T C 6: 135,214,558 (GRCm39) E317G probably benign Het
Gsk3b A G 16: 38,004,816 (GRCm39) N129S probably damaging Het
Hmg20b G T 10: 81,184,789 (GRCm39) D94E possibly damaging Het
Kash5 C T 7: 44,849,695 (GRCm39) G76D probably benign Het
Klhdc9 T A 1: 171,187,386 (GRCm39) H204L possibly damaging Het
Klhl24 A G 16: 19,925,638 (GRCm39) I55M probably benign Het
Kmt2c T C 5: 25,520,104 (GRCm39) D2002G probably benign Het
Lama4 A G 10: 38,950,742 (GRCm39) N1015S probably damaging Het
Lpp T C 16: 24,580,697 (GRCm39) C263R probably benign Het
Lrp1b T C 2: 41,159,216 (GRCm39) I1689V Het
Mipep C A 14: 61,022,284 (GRCm39) Q50K probably benign Het
Mx1 T C 16: 97,257,454 (GRCm39) D101G probably benign Het
Nabp2 C G 10: 128,244,676 (GRCm39) E37Q possibly damaging Het
Nme6 A G 9: 109,671,104 (GRCm39) I115V possibly damaging Het
Nup93 A T 8: 94,970,355 (GRCm39) T85S probably benign Het
Oit3 T A 10: 59,266,835 (GRCm39) I224F possibly damaging Het
Parp14 T C 16: 35,678,975 (GRCm39) K331R probably benign Het
Pls1 T A 9: 95,643,443 (GRCm39) T519S probably benign Het
Rcn3 A G 7: 44,736,118 (GRCm39) F197L probably benign Het
Rnf213 C T 11: 119,349,218 (GRCm39) T3773I Het
Rprd1b A T 2: 157,889,877 (GRCm39) I153L probably benign Het
Scel A G 14: 103,829,804 (GRCm39) D462G possibly damaging Het
Sh3bp1 C T 15: 78,794,276 (GRCm39) S548L possibly damaging Het
Sim1 T A 10: 50,860,284 (GRCm39) Y715* probably null Het
Slc18a2 A T 19: 59,282,293 (GRCm39) Q500L possibly damaging Het
Slc5a8 T G 10: 88,722,365 (GRCm39) M66R probably damaging Het
Slco1a6 T C 6: 142,055,246 (GRCm39) T233A probably damaging Het
Smu1 T C 4: 40,739,623 (GRCm39) T396A probably benign Het
Tas2r104 T C 6: 131,662,521 (GRCm39) T63A possibly damaging Het
Tasor2 G A 13: 3,624,979 (GRCm39) A1657V possibly damaging Het
Ucp1 T C 8: 84,020,577 (GRCm39) F129S probably damaging Het
Unc13b T A 4: 43,091,298 (GRCm39) D41E probably benign Het
Usp10 T G 8: 120,681,631 (GRCm39) V696G probably benign Het
Xylt2 C T 11: 94,557,066 (GRCm39) V745M probably damaging Het
Zbtb49 A T 5: 38,373,820 (GRCm39) N41K probably damaging Het
Zfp109 T A 7: 23,928,779 (GRCm39) D218V probably benign Het
Zfp420 G A 7: 29,575,430 (GRCm39) R550Q 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
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
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'- AGTACAAACATGCAGCTTCCTTC -3'
(R):5'- TCCCTTTTGCAGAGAGGAGG -3'

Sequencing Primer
(F):5'- ACAAACATGCAGCTTCCTTCATTTTC -3'
(R):5'- ACTCACTCTGTAGACCAGGCTG -3'
Posted On 2019-06-07