Incidental Mutation 'IGL01753:Top2a'
ID153145
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: 0.970) question?
Stock #IGL01753
Quality Score
Status
Chromosome11
Chromosomal Location98992943-99024189 bp(-) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) T to A at 99007274 bp
ZygosityHeterozygous
Amino Acid Change Threonine to Serine at position 689 (T689S)
Ref Sequence ENSEMBL: ENSMUSP00000068896 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000068031]
Predicted Effect probably damaging
Transcript: ENSMUST00000068031
AA Change: T689S

PolyPhen 2 Score 0.974 (Sensitivity: 0.76; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000068896
Gene: ENSMUSG00000020914
AA Change: T689S

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: 31 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adamts1 A G 16: 85,802,224 F163L probably benign Het
Ap2b1 A G 11: 83,321,973 T60A probably damaging Het
Casp3 A G 8: 46,629,741 probably benign Het
Ces1d T C 8: 93,192,810 Y118C probably damaging Het
Chuk T C 19: 44,098,576 probably benign Het
Clec4b2 A T 6: 123,202,210 Y157F possibly damaging Het
Dlg4 T A 11: 70,041,347 F480I probably damaging Het
Dock8 T A 19: 25,061,292 probably benign Het
Dsg1b T C 18: 20,397,849 probably benign Het
Dstyk T C 1: 132,462,939 Y830H probably damaging Het
Gm9268 T A 7: 43,024,715 V399E probably damaging Het
Hook2 T C 8: 84,993,236 probably null Het
Ighv2-9-1 T C 12: 113,769,928 D91G probably damaging Het
Igkv12-41 T C 6: 69,858,526 R81G probably damaging Het
Ispd C T 12: 36,473,177 L202F probably damaging Het
Jmjd1c T A 10: 67,232,015 S1766T probably damaging Het
Mdn1 G A 4: 32,708,483 V1670I probably benign Het
Naa15 T C 3: 51,442,853 F124L probably damaging Het
Nek2 C T 1: 191,825,486 Q187* probably null Het
Olfr134 G T 17: 38,175,686 V201L probably benign Het
Olfr912 C T 9: 38,581,513 P79S probably damaging Het
Pif1 G A 9: 65,593,308 G505D probably damaging Het
Plxna4 T A 6: 32,310,478 I495F probably benign Het
Ppp1r21 T C 17: 88,562,102 probably benign Het
Prex1 T C 2: 166,602,882 I282V probably benign Het
Pzp A T 6: 128,502,183 I669N possibly damaging Het
Sipa1l2 T A 8: 125,453,292 probably benign Het
Trerf1 T A 17: 47,315,436 noncoding transcript Het
Uso1 T C 5: 92,152,918 probably null Het
Zcchc7 A G 4: 44,929,217 I390V probably benign Het
Zfp90 C T 8: 106,424,150 T165I probably benign 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
IGL01481:Top2a APN 11 99011030 missense probably damaging 1.00
IGL01485:Top2a APN 11 99011030 missense probably damaging 1.00
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
U24488:Top2a UTSW 11 99022426 missense probably damaging 1.00
X0025:Top2a UTSW 11 98995941 missense probably benign 0.32
Posted On2014-02-04