Incidental Mutation 'IGL01451:Top2a'
ID84631
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: 0.968) question?
Stock #IGL01451
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: 28 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1700003H04Rik A G 3: 124,579,878 S23P possibly damaging Het
Adam1a T C 5: 121,519,376 Y618C probably benign Het
Amigo2 A C 15: 97,245,226 S438R probably benign Het
Atp5k T C 5: 108,434,056 I21V probably benign Het
Dnah2 T C 11: 69,474,191 probably benign Het
Dock2 A G 11: 34,310,390 Y984H probably damaging Het
Dpysl2 T A 14: 66,807,918 I469F possibly damaging Het
Edem3 C T 1: 151,818,628 T886I probably benign Het
Gart T C 16: 91,625,512 T706A probably benign Het
Gfpt2 A T 11: 49,807,690 probably benign Het
Gm11541 T G 11: 94,695,669 D84A unknown Het
Gne T C 4: 44,041,860 probably null Het
Gria4 A T 9: 4,503,652 D321E probably benign Het
Ift122 T G 6: 115,912,604 probably null Het
Lcp2 A T 11: 34,047,345 probably benign Het
Mcm2 C T 6: 88,891,966 probably benign Het
Olfr921 A G 9: 38,775,929 I225V probably benign Het
Ptpru C A 4: 131,769,492 probably benign Het
Rpap2 T C 5: 107,603,626 probably null Het
Slc25a39 T C 11: 102,404,900 T138A probably damaging Het
St6galnac1 A C 11: 116,769,339 S49R probably benign Het
Stat1 T C 1: 52,139,343 L312P probably damaging Het
Tmem198 T C 1: 75,484,370 probably benign Het
Treml4 T C 17: 48,264,995 probably benign Het
Trpm6 A G 19: 18,809,569 D503G probably damaging Het
Ttn C A 2: 76,945,273 E1854D unknown Het
Ubqln3 A T 7: 104,142,196 M229K possibly damaging Het
Zfyve9 T C 4: 108,682,260 T939A 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
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
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
R7924:Top2a UTSW 11 99022350 missense probably damaging 1.00
R7977:Top2a UTSW 11 99009605 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 On2013-11-11