Incidental Mutation 'IGL01481:Top2a'
ID278527
Institutional Source Australian Phenomics Network (link to record)
Gene Symbol Top2a
Ensembl Gene ENSMUSG00000020914
Gene Nametopoisomerase (DNA) II alpha
SynonymsTop-2, DNA Topoisomerase II alpha
Accession Numbers

Ncbi RefSeq: NM_011623.2; MGI:98790

Is this an essential gene? Probably essential (E-score: 0.965) question?
Stock #IGL01481
Quality Score
Status
Chromosome11
Chromosomal Location98992943-99024189 bp(-) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) A to T at 99011030 bp
ZygosityHeterozygous
Amino Acid Change Leucine to Glutamine at position 458 (L458Q)
Ref Sequence ENSEMBL: ENSMUSP00000068896 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000068031]
Predicted Effect probably damaging
Transcript: ENSMUST00000068031
AA Change: L458Q

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000068896
Gene: ENSMUSG00000020914
AA Change: L458Q

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
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: 50 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4930590J08Rik A T 6: 91,933,098 S523C probably damaging Het
Apaf1 A T 10: 91,031,588 D798E possibly damaging Het
Arhgef7 G T 8: 11,815,256 V410L probably benign Het
Capn7 T C 14: 31,355,339 L338P probably damaging Het
Cldn17 A G 16: 88,506,583 V86A probably benign Het
Clec4a2 A G 6: 123,142,500 N237S probably benign Het
Cmtr1 T G 17: 29,698,657 I654S probably benign Het
Cryzl2 G A 1: 157,470,739 probably null Het
Ctif A G 18: 75,611,784 probably benign Het
Dcaf7 T A 11: 106,054,746 I307N probably damaging Het
Drosha A T 15: 12,842,439 T399S probably benign Het
Eef2k A T 7: 120,895,218 Y35F probably benign Het
Emc1 T C 4: 139,362,099 S193P probably benign Het
Fpr2 T C 17: 17,892,763 I7T probably benign Het
Fras1 C A 5: 96,657,241 N1247K probably damaging Het
Gipr T C 7: 19,159,506 probably benign Het
Heatr5a C T 12: 51,955,425 G243S probably damaging Het
Hivep2 G A 10: 14,149,237 R2265Q probably benign Het
Iars T C 13: 49,728,698 S1073P probably benign Het
Inpp4b T C 8: 81,997,380 S514P probably damaging Het
Inpp5b T A 4: 124,800,699 probably null Het
Itga2 C T 13: 114,859,632 V708I possibly damaging Het
Itih5 A C 2: 10,190,289 Q164P probably damaging Het
Map3k19 T A 1: 127,822,478 E1045D probably damaging Het
Mbd5 T C 2: 49,278,939 V1374A possibly damaging Het
Mrps34 T C 17: 24,897,336 probably benign Het
Nadsyn1 T C 7: 143,812,584 D191G probably damaging Het
Nlrc3 T G 16: 3,963,905 N563H probably damaging Het
Nlrp4c T C 7: 6,100,784 C906R possibly damaging Het
Olfr1252 A G 2: 89,721,526 L195P probably damaging Het
Olfr344 T A 2: 36,568,742 L48H probably damaging Het
Olfr654 C A 7: 104,587,860 P36T probably damaging Het
Olfr981 T C 9: 40,023,278 M295T possibly damaging Het
Pdgfd C A 9: 6,337,271 T195K probably null Het
Ptprz1 C A 6: 22,999,980 Q690K probably benign Het
Scfd1 T A 12: 51,384,120 M23K probably damaging Het
Scn10a G A 9: 119,609,194 R1869C probably damaging Het
Scp2 T C 4: 108,074,442 probably null Het
Sec61a1 A G 6: 88,506,847 V354A probably benign Het
Sgpp1 T C 12: 75,722,657 I246V probably benign Het
Slco2a1 G T 9: 103,070,251 D250Y probably damaging Het
Slit2 A G 5: 48,302,931 N1435D probably benign Het
Sspo A G 6: 48,448,515 I23M probably benign Het
Steap4 A T 5: 7,976,858 T274S probably damaging Het
Tbc1d22b T C 17: 29,568,598 L107P possibly damaging Het
Tiparp G T 3: 65,552,609 G442* probably null Het
Tmem45a2 T A 16: 57,047,012 I109F probably benign Het
Tox T A 4: 6,842,396 T45S probably damaging Het
Vmn2r4 A T 3: 64,406,395 N388K probably damaging Het
Wdr7 G A 18: 63,739,179 D395N probably damaging Het
Other mutations in Top2a
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00518:Top2a APN 11 99018821 nonsense probably null
IGL01285:Top2a APN 11 99006159 splice site probably benign
IGL01445:Top2a APN 11 99011030 missense probably damaging 1.00
IGL01451:Top2a APN 11 99011030 missense probably damaging 1.00
IGL01456:Top2a APN 11 99011030 missense probably damaging 1.00
IGL01458:Top2a APN 11 99011030 missense probably damaging 1.00
IGL01485:Top2a APN 11 99011030 missense probably damaging 1.00
IGL01753:Top2a APN 11 99007274 missense probably damaging 0.97
IGL03029:Top2a APN 11 99018799 missense probably benign 0.03
PIT4581001:Top2a UTSW 11 99002964 missense probably damaging 0.97
PIT4585001:Top2a UTSW 11 99001373 missense probably benign 0.02
R0008:Top2a UTSW 11 99002903 nonsense probably null
R0047:Top2a UTSW 11 98997856 missense probably benign
R0047:Top2a UTSW 11 98997856 missense probably benign
R0070:Top2a UTSW 11 99015060 critical splice acceptor site probably null
R0070:Top2a UTSW 11 99015060 critical splice acceptor site probably null
R0116:Top2a UTSW 11 99003590 missense probably benign 0.00
R0245:Top2a UTSW 11 99010096 missense probably benign 0.37
R0276:Top2a UTSW 11 99009907 splice site probably benign
R0288:Top2a UTSW 11 99016423 splice site probably benign
R0335:Top2a UTSW 11 99022955 missense probably benign 0.08
R0422:Top2a UTSW 11 99009853 missense probably damaging 1.00
R0546:Top2a UTSW 11 98999226 missense possibly damaging 0.75
R0558:Top2a UTSW 11 98996839 missense probably benign
R0599:Top2a UTSW 11 99001417 missense probably damaging 0.99
R0727:Top2a UTSW 11 99012148 nonsense probably null
R1565:Top2a UTSW 11 99001054 missense probably damaging 0.99
R1674:Top2a UTSW 11 99009273 missense probably damaging 0.96
R1844:Top2a UTSW 11 99016069 missense probably benign 0.06
R1959:Top2a UTSW 11 98995977 splice site probably null
R2124:Top2a UTSW 11 99004228 missense probably benign 0.00
R2128:Top2a UTSW 11 99009807 missense probably damaging 0.97
R3707:Top2a UTSW 11 98996825 missense probably benign 0.13
R4110:Top2a UTSW 11 99022960 missense probably damaging 1.00
R4112:Top2a UTSW 11 99022960 missense probably damaging 1.00
R4423:Top2a UTSW 11 99001405 missense probably benign 0.00
R4425:Top2a UTSW 11 99001405 missense probably benign 0.00
R4914:Top2a UTSW 11 99002960 missense probably damaging 1.00
R4939:Top2a UTSW 11 99010092 missense probably damaging 1.00
R4944:Top2a UTSW 11 98997850 missense probably benign 0.37
R4971:Top2a UTSW 11 98993841 missense probably damaging 1.00
R5362:Top2a UTSW 11 99018912 missense probably damaging 1.00
R5477:Top2a UTSW 11 99016480 nonsense probably null
R5499:Top2a UTSW 11 99022376 missense probably benign 0.20
R5911:Top2a UTSW 11 99016465 missense possibly damaging 0.92
R7126:Top2a UTSW 11 99014992 missense probably benign 0.09
R7131:Top2a UTSW 11 99004182 missense possibly damaging 0.75
R7174:Top2a UTSW 11 99024096 start gained probably benign
R7329:Top2a UTSW 11 99004246 missense possibly damaging 0.57
R7560:Top2a UTSW 11 99000837 missense probably benign
R7563:Top2a UTSW 11 99016179 missense probably damaging 1.00
R7740:Top2a UTSW 11 98993814 missense probably benign 0.34
R7841:Top2a UTSW 11 99022350 missense probably damaging 1.00
R7894:Top2a UTSW 11 99009605 missense probably damaging 1.00
R8122:Top2a UTSW 11 98999167 missense probably benign
R8260:Top2a UTSW 11 99000769 missense probably null 0.87
R8504:Top2a UTSW 11 99014741 missense probably benign
R8550:Top2a UTSW 11 98995918 missense probably benign
R8558:Top2a UTSW 11 99021723 missense probably damaging 1.00
R8693:Top2a UTSW 11 99010042 missense probably damaging 1.00
R8851:Top2a UTSW 11 99009851 missense probably damaging 1.00
U24488:Top2a UTSW 11 99022426 missense probably damaging 1.00
X0025:Top2a UTSW 11 98995941 missense probably benign 0.32
Posted On2015-04-16