Incidental Mutation 'R0883:Top3b'
Institutional Source Beutler Lab
Gene Symbol Top3b
Ensembl Gene ENSMUSG00000022779
Gene Nametopoisomerase (DNA) III beta
SynonymsTopo III beta
MMRRC Submission 039050-MU
Accession Numbers
Is this an essential gene? Possibly non essential (E-score: 0.268) question?
Stock #R0883 (G1)
Quality Score225
Status Validated
Chromosomal Location16870736-16892990 bp(+) (GRCm38)
Type of Mutationsplice site
DNA Base Change (assembly) T to C at 16879437 bp
Amino Acid Change
Ref Sequence ENSEMBL: ENSMUSP00000156132 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000023465] [ENSMUST00000119787] [ENSMUST00000124960] [ENSMUST00000139740] [ENSMUST00000156502] [ENSMUST00000231812] [ENSMUST00000232017] [ENSMUST00000232231] [ENSMUST00000232547] [ENSMUST00000232080] [ENSMUST00000232581] [ENSMUST00000232200]
Predicted Effect probably benign
Transcript: ENSMUST00000023465
SMART Domains Protein: ENSMUSP00000023465
Gene: ENSMUSG00000022779

TOPRIM 3 138 2.64e-27 SMART
TOP1Bc 146 242 3.84e-38 SMART
TOP1Ac 289 545 2.28e-104 SMART
low complexity region 824 850 N/A INTRINSIC
Predicted Effect noncoding transcript
Transcript: ENSMUST00000118424
Predicted Effect
SMART Domains Protein: ENSMUSP00000112913
Gene: ENSMUSG00000022779

TOPRIM 3 138 2.64e-27 SMART
TOP1Bc 146 242 3.84e-38 SMART
TOP1Ac 289 545 2.28e-104 SMART
low complexity region 824 850 N/A INTRINSIC
Predicted Effect
SMART Domains Protein: ENSMUSP00000118897
Gene: ENSMUSG00000022779

TOPRIM 3 118 3.89e-7 SMART
Predicted Effect noncoding transcript
Transcript: ENSMUST00000125202
Predicted Effect noncoding transcript
Transcript: ENSMUST00000135597
Predicted Effect noncoding transcript
Transcript: ENSMUST00000138618
Predicted Effect
SMART Domains Protein: ENSMUSP00000118398
Gene: ENSMUSG00000022779

TOPRIM 3 138 2.64e-27 SMART
TOP1Bc 146 242 3.84e-38 SMART
Predicted Effect noncoding transcript
Transcript: ENSMUST00000150424
Predicted Effect
SMART Domains Protein: ENSMUSP00000115491
Gene: ENSMUSG00000022779

TOPRIM 3 138 2.64e-27 SMART
TOP1Bc 146 234 4.29e-27 SMART
Predicted Effect noncoding transcript
Transcript: ENSMUST00000231278
Predicted Effect noncoding transcript
Transcript: ENSMUST00000231576
Predicted Effect probably benign
Transcript: ENSMUST00000231812
Predicted Effect probably benign
Transcript: ENSMUST00000232017
Predicted Effect probably benign
Transcript: ENSMUST00000232231
Predicted Effect noncoding transcript
Transcript: ENSMUST00000232523
Predicted Effect probably benign
Transcript: ENSMUST00000232547
Predicted Effect probably benign
Transcript: ENSMUST00000232080
Predicted Effect probably benign
Transcript: ENSMUST00000232117
Predicted Effect noncoding transcript
Transcript: ENSMUST00000232531
Predicted Effect noncoding transcript
Transcript: ENSMUST00000232380
Predicted Effect probably benign
Transcript: ENSMUST00000232581
Predicted Effect probably benign
Transcript: ENSMUST00000232200
Coding Region Coverage
  • 1x: 99.5%
  • 3x: 99.0%
  • 10x: 97.8%
  • 20x: 96.1%
Validation Efficiency 98% (148/151)
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 enzyme catalyzes the transient breaking and rejoining of a single strand of DNA which allows the strands to pass through one another, thus relaxing the supercoils and altering the topology of DNA. The enzyme interacts with DNA helicase SGS1 and plays a role in DNA recombination, cellular aging and maintenance of genome stability. Low expression of this gene may be related to higher survival rates in breast cancer patients. This gene has a pseudogene on chromosome 22. Alternate splicing results in multiple transcript variants. Additional alternatively spliced transcript variants of this gene have been described, but their full-length nature is not known. [provided by RefSeq, Aug 2013]
PHENOTYPE: Homozygous null mice develop to maturity but die prematurely showing enlargement of lymphatic organs and glomerulonephritis. Intercrossing of mutant mice progressively results in infertility that is correlated to increased aneuploidy in germ cells. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 150 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1110002E22Rik T C 3: 138,069,871 L1607P probably damaging Het
1700016H13Rik T C 5: 103,648,821 *118W probably null Het
1700061G19Rik A T 17: 56,883,835 N468Y probably benign Het
4930595M18Rik G T X: 81,420,931 T390N possibly damaging Het
Abca13 C T 11: 9,291,238 Q1034* probably null Het
Adgra3 T C 5: 49,960,723 H1161R probably damaging Het
AF529169 T C 9: 89,602,417 H309R probably benign Het
Aff1 T C 5: 103,826,138 probably benign Het
Agap2 A G 10: 127,091,702 T1131A possibly damaging Het
Ankrd12 A G 17: 65,985,132 V1102A probably benign Het
Ankrd54 A T 15: 79,062,731 C23S probably damaging Het
Anxa10 C T 8: 62,077,967 V70I probably benign Het
Asap3 T C 4: 136,234,325 probably benign Het
Asb13 T C 13: 3,645,052 probably null Het
Atp6v1a A T 16: 44,101,692 probably benign Het
Atp8b1 T G 18: 64,564,541 I411L probably benign Het
Baiap3 T A 17: 25,249,101 N313I probably damaging Het
Bok T C 1: 93,686,487 I14T probably benign Het
Bri3bp T A 5: 125,441,744 probably null Het
C2cd2l A G 9: 44,316,202 L186P probably damaging Het
Cadm2 A T 16: 66,882,814 C44S probably damaging Het
Capn11 T C 17: 45,638,881 probably benign Het
Carm1 T A 9: 21,569,591 probably benign Het
Ccdc189 T C 7: 127,584,862 E261G probably damaging Het
Ccdc27 T C 4: 154,036,484 E285G unknown Het
Cct3 T A 3: 88,313,557 D298E probably damaging Het
Cd59b T A 2: 104,080,986 probably benign Het
Cdh2 T C 18: 16,629,576 N437S probably benign Het
Celsr3 T A 9: 108,842,633 I2470N probably damaging Het
Cfap100 G A 6: 90,415,906 probably benign Het
Cfap45 A T 1: 172,532,189 R98S possibly damaging Het
Cfap54 T A 10: 92,870,669 H2757L unknown Het
Chd1 C A 17: 15,725,431 N72K probably benign Het
Cntn4 A T 6: 106,667,540 probably benign Het
Cstf2t A T 19: 31,084,626 M521L probably benign Het
Daam2 A T 17: 49,498,883 probably benign Het
Ddias A T 7: 92,859,337 W457R probably benign Het
Ddr2 C T 1: 169,994,629 V417I probably benign Het
Dhx57 T C 17: 80,270,371 T570A probably damaging Het
Dmp1 A G 5: 104,207,630 E32G possibly damaging Het
Dtymk C T 1: 93,801,788 V14M possibly damaging Het
Dync2li1 G A 17: 84,649,271 M286I probably benign Het
Eea1 G A 10: 96,021,667 D664N possibly damaging Het
Esp6 G T 17: 40,565,396 V112L probably benign Het
Fam83h G T 15: 76,006,169 Q127K probably damaging Het
Gabbr2 G A 4: 46,677,474 T802I probably benign Het
Gart C A 16: 91,623,403 D851Y possibly damaging Het
Gemin6 T A 17: 80,228,095 H161Q probably damaging Het
Gm10912 T C 2: 104,066,530 S5P probably benign Het
Gm4907 A T X: 23,907,051 I264F probably benign Het
Gm5941 G A X: 92,490,211 A62T possibly damaging Het
Gng2 G T 14: 19,891,295 D26E probably benign Het
Gpr33 A G 12: 52,023,635 V207A probably benign Het
Gstm3 T A 3: 107,966,270 probably benign Het
Havcr1 T C 11: 46,752,432 C60R probably damaging Het
Hspg2 T C 4: 137,541,440 S2157P probably benign Het
Ift140 A G 17: 25,090,933 T1105A probably benign Het
Igsf8 C A 1: 172,316,259 A56D possibly damaging Het
Kat6a G T 8: 22,862,214 A5S probably damaging Het
Kctd16 A G 18: 40,530,775 E319G probably damaging Het
Kmo T C 1: 175,647,140 V157A possibly damaging Het
Lrp5 T A 19: 3,605,308 I1071F probably damaging Het
Lrrc17 A G 5: 21,561,278 T253A probably benign Het
Mast2 T A 4: 116,311,767 H769L probably damaging Het
Mast4 T C 13: 102,853,900 K50E probably damaging Het
Mbd5 A G 2: 49,256,689 T304A possibly damaging Het
Mbp T C 18: 82,572,870 S73P probably damaging Het
Mc5r T A 18: 68,339,092 V174E probably damaging Het
Med13 T A 11: 86,307,038 T736S probably benign Het
Med13l T C 5: 118,671,002 probably benign Het
Mlh3 C G 12: 85,235,714 A1382P possibly damaging Het
Mpdz T C 4: 81,359,991 probably benign Het
Muc5ac A G 7: 141,796,265 T582A possibly damaging Het
Mum1l1 T A X: 139,235,695 D327E probably damaging Het
Nalcn A G 14: 123,464,740 F453S probably damaging Het
Nrap T A 19: 56,345,474 M902L probably damaging Het
Nup85 C T 11: 115,568,370 R100* probably null Het
Nxf1 T G 19: 8,764,591 N296K probably damaging Het
Ogg1 A G 6: 113,328,420 T65A probably damaging Het
Ogt A G X: 101,644,199 probably benign Het
Olfr1258 A G 2: 89,930,201 T131A probably benign Het
Olfr1298 C T 2: 111,645,791 V69I probably benign Het
Olfr504 T A 7: 108,565,276 N173I probably benign Het
Olfr558 T A 7: 102,709,995 H245Q probably damaging Het
Ovol2 T C 2: 144,331,790 D24G probably damaging Het
Pabpc1 A G 15: 36,599,054 probably benign Het
Pak6 T C 2: 118,693,687 L441P probably damaging Het
Pappa T A 4: 65,189,315 C654* probably null Het
Paqr6 T A 3: 88,365,991 S97T probably damaging Het
Parp14 T C 16: 35,858,518 N360S probably benign Het
Pclo G T 5: 14,677,859 G2244* probably null Het
Pdzrn3 A T 6: 101,155,942 probably null Het
Pes1 T C 11: 3,975,557 M220T probably damaging Het
Phip A T 9: 82,876,221 V1473E probably benign Het
Pkd2l2 T A 18: 34,430,268 probably null Het
Plch1 T C 3: 63,753,256 D302G probably damaging Het
Plekhh2 A G 17: 84,618,031 T1419A probably benign Het
Ppara A T 15: 85,798,171 E356V probably damaging Het
Ppp1r37 G A 7: 19,532,177 P555S probably benign Het
Ppp6r1 T C 7: 4,639,710 E545G possibly damaging Het
Proser3 G A 7: 30,540,699 H327Y probably damaging Het
Prss43 T A 9: 110,829,508 I292N probably damaging Het
Pygl G C 12: 70,206,404 N271K probably damaging Het
Rassf7 T A 7: 141,216,990 probably benign Het
Rfx2 T C 17: 56,803,722 Y88C probably damaging Het
Rpl6 T C 5: 121,208,478 V214A probably benign Het
Rspo1 T A 4: 124,991,432 probably null Het
Sav1 A C 12: 69,966,205 L366V probably benign Het
Sema3b T G 9: 107,604,156 T52P possibly damaging Het
Senp6 A G 9: 80,116,559 D40G probably damaging Het
Sh3pxd2a A G 19: 47,268,207 S719P probably damaging Het
Shank1 C T 7: 44,352,294 R1146W unknown Het
Slc34a3 G T 2: 25,231,233 D307E probably benign Het
Slc35b3 T C 13: 38,937,275 I330V probably benign Het
Slc4a10 G A 2: 62,243,398 C268Y probably benign Het
Slco6d1 A G 1: 98,421,399 E65G probably benign Het
Slit2 A G 5: 48,245,573 probably benign Het
Smcr8 T C 11: 60,778,115 Y30H probably damaging Het
Snap47 A G 11: 59,438,500 probably benign Het
Snrnp25 G A 11: 32,206,960 V15I probably damaging Het
Spns2 T C 11: 72,454,397 Y449C probably damaging Het
Stab2 T A 10: 86,924,450 probably benign Het
Strip1 C A 3: 107,614,613 D750Y probably damaging Het
Taf1c A T 8: 119,599,983 I438N probably damaging Het
Tbc1d2 T A 4: 46,609,003 K745* probably null Het
Tctn1 T C 5: 122,264,144 T76A probably damaging Het
Tfpi T C 2: 84,443,320 probably benign Het
Timm44 A T 8: 4,266,592 H317Q probably benign Het
Tnfaip1 A T 11: 78,530,014 probably benign Het
Tnpo3 A T 6: 29,554,993 probably benign Het
Trak1 T A 9: 121,453,285 M410K possibly damaging Het
Trpm3 C A 19: 22,978,654 P1160Q probably damaging Het
Tyk2 T A 9: 21,111,137 T799S possibly damaging Het
Ubfd1 G A 7: 122,067,491 probably benign Het
Unc13a G A 8: 71,642,173 R1272* probably null Het
Unc45b T A 11: 82,940,205 L797Q possibly damaging Het
Urb2 C T 8: 124,030,970 Q1139* probably null Het
Vmn2r66 A T 7: 85,007,862 S112T probably benign Het
Vmn2r71 A T 7: 85,623,634 D552V probably benign Het
Vmn2r76 A G 7: 86,228,696 Y498H probably benign Het
Vmn2r84 A C 10: 130,391,115 W285G probably damaging Het
Vps72 G T 3: 95,122,583 L304F probably damaging Het
Wiz A T 17: 32,356,441 I907N probably damaging Het
Yaf2 T C 15: 93,285,536 K131R probably damaging Het
Zfp141 A T 7: 42,476,056 Y331N possibly damaging Het
Zfp324 G T 7: 12,971,024 C380F probably damaging Het
Zfp521 T C 18: 13,845,062 T765A probably benign Het
Zfp616 A T 11: 74,085,674 H923L probably damaging Het
Zfpm1 C T 8: 122,335,846 T548M probably damaging Het
Zp2 A T 7: 120,143,576 probably benign Het
Other mutations in Top3b
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00823:Top3b APN 16 16887622 missense probably damaging 0.97
IGL01512:Top3b APN 16 16891422 missense possibly damaging 0.74
IGL01552:Top3b APN 16 16887823 splice site probably benign
IGL01738:Top3b APN 16 16880604 missense probably benign 0.04
IGL02090:Top3b APN 16 16891470 missense possibly damaging 0.81
R0143:Top3b UTSW 16 16883525 missense probably damaging 0.97
R1386:Top3b UTSW 16 16880629 missense probably benign 0.29
R1440:Top3b UTSW 16 16892777 nonsense probably null
R1958:Top3b UTSW 16 16884302 missense possibly damaging 0.52
R1970:Top3b UTSW 16 16883519 missense probably damaging 1.00
R4211:Top3b UTSW 16 16882532 splice site probably null
R4292:Top3b UTSW 16 16883519 missense probably damaging 1.00
R4307:Top3b UTSW 16 16889617 splice site probably benign
R4832:Top3b UTSW 16 16890662 nonsense probably null
R5047:Top3b UTSW 16 16891418 missense probably benign 0.00
R5364:Top3b UTSW 16 16886970 missense probably benign 0.00
R5590:Top3b UTSW 16 16891577 intron probably benign
R5604:Top3b UTSW 16 16889535 nonsense probably null
R5719:Top3b UTSW 16 16885836 missense probably damaging 1.00
R5969:Top3b UTSW 16 16883565 critical splice donor site probably null
R6018:Top3b UTSW 16 16892892 missense probably damaging 1.00
R6144:Top3b UTSW 16 16879141 splice site probably null
R6155:Top3b UTSW 16 16891509 missense probably damaging 1.00
R6341:Top3b UTSW 16 16879071 missense probably damaging 0.98
R6700:Top3b UTSW 16 16892669 missense possibly damaging 0.48
R7417:Top3b UTSW 16 16877850 start gained probably benign
R7586:Top3b UTSW 16 16891368 missense probably benign 0.44
R7747:Top3b UTSW 16 16887721 missense probably benign 0.17
R8382:Top3b UTSW 16 16888003 missense probably damaging 1.00
R8438:Top3b UTSW 16 16891500 missense probably benign 0.04
X0011:Top3b UTSW 16 16890189 missense probably benign 0.00
Predicted Primers PCR Primer

Sequencing Primer
(R):5'- gttcatctgcctctgcctc -3'
Posted On2013-11-07