Incidental Mutation 'R4832:Top3b'
ID372943
Institutional Source Beutler Lab
Gene Symbol Top3b
Ensembl Gene ENSMUSG00000022779
Gene Nametopoisomerase (DNA) III beta
SynonymsTopo III beta
MMRRC Submission 042448-MU
Accession Numbers
Is this an essential gene? Possibly non essential (E-score: 0.333) question?
Stock #R4832 (G1)
Quality Score225
Status Validated
Chromosome16
Chromosomal Location16870736-16892990 bp(+) (GRCm38)
Type of Mutationnonsense
DNA Base Change (assembly) C to T at 16890662 bp
ZygosityHeterozygous
Amino Acid Change Arginine to Stop codon at position 629 (R629*)
Ref Sequence ENSEMBL: ENSMUSP00000156132 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000023465] [ENSMUST00000119787] [ENSMUST00000232080] [ENSMUST00000232581]
Predicted Effect probably null
Transcript: ENSMUST00000023465
AA Change: R629*
SMART Domains Protein: ENSMUSP00000023465
Gene: ENSMUSG00000022779
AA Change: R629*

DomainStartEndE-ValueType
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 probably null
Transcript: ENSMUST00000119787
AA Change: R629*
SMART Domains Protein: ENSMUSP00000112913
Gene: ENSMUSG00000022779
AA Change: R629*

DomainStartEndE-ValueType
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 probably null
Transcript: ENSMUST00000124185
AA Change: R39*
SMART Domains Protein: ENSMUSP00000117491
Gene: ENSMUSG00000022779
AA Change: R39*

DomainStartEndE-ValueType
Blast:RING 99 152 1e-13 BLAST
Predicted Effect noncoding transcript
Transcript: ENSMUST00000128407
Predicted Effect noncoding transcript
Transcript: ENSMUST00000128497
Predicted Effect noncoding transcript
Transcript: ENSMUST00000129969
Predicted Effect noncoding transcript
Transcript: ENSMUST00000135597
Predicted Effect noncoding transcript
Transcript: ENSMUST00000147531
Predicted Effect noncoding transcript
Transcript: ENSMUST00000150424
Predicted Effect noncoding transcript
Transcript: ENSMUST00000151271
Predicted Effect probably null
Transcript: ENSMUST00000156951
AA Change: R423*
SMART Domains Protein: ENSMUSP00000115214
Gene: ENSMUSG00000022779
AA Change: R423*

DomainStartEndE-ValueType
TOP1Ac 84 340 2.28e-104 SMART
Predicted Effect noncoding transcript
Transcript: ENSMUST00000231278
Predicted Effect noncoding transcript
Transcript: ENSMUST00000231402
Predicted Effect noncoding transcript
Transcript: ENSMUST00000231432
Predicted Effect noncoding transcript
Transcript: ENSMUST00000231834
Predicted Effect probably null
Transcript: ENSMUST00000231966
AA Change: R39*
Predicted Effect probably benign
Transcript: ENSMUST00000232080
Predicted Effect probably null
Transcript: ENSMUST00000232117
AA Change: R423*
Predicted Effect noncoding transcript
Transcript: ENSMUST00000232153
Predicted Effect noncoding transcript
Transcript: ENSMUST00000232523
Predicted Effect probably null
Transcript: ENSMUST00000232581
AA Change: R629*
Predicted Effect noncoding transcript
Transcript: ENSMUST00000232656
Meta Mutation Damage Score 0.6228 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.5%
  • 10x: 96.8%
  • 20x: 93.9%
Validation Efficiency 98% (106/108)
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: 98 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1110032F04Rik T C 3: 68,870,264 V186A possibly damaging Het
1700088E04Rik A T 15: 79,135,209 M198K probably damaging Het
4931406P16Rik T C 7: 34,238,908 probably benign Het
4933402J07Rik A G 8: 87,567,973 K84R probably null Het
9930021J03Rik G T 19: 29,717,216 L1626I possibly damaging Het
A530099J19Rik T A 13: 19,729,670 noncoding transcript Het
Aamdc T C 7: 97,550,566 probably null Het
Abcc9 A G 6: 142,671,556 V594A probably damaging Het
Adamts13 G A 2: 26,989,402 D656N probably benign Het
Adcy10 G T 1: 165,506,644 C122F probably damaging Het
Adi1 A G 12: 28,675,253 M1V probably null Het
Ahnak G A 19: 9,012,460 probably benign Het
Akt1 G T 12: 112,657,087 P313Q probably damaging Het
Ano3 A T 2: 110,667,722 M758K probably damaging Het
Baz2a T A 10: 128,123,130 N1168K probably benign Het
Bbs10 A G 10: 111,301,134 K703E probably benign Het
Bcap29 A G 12: 31,624,203 I131T probably benign Het
Btnl6 T C 17: 34,513,992 D299G possibly damaging Het
Ccdc66 A G 14: 27,500,567 I73T probably benign Het
Cdh2 A G 18: 16,627,697 S538P probably benign Het
Cfap54 T A 10: 92,967,528 M1551L probably benign Het
Chd2 G A 7: 73,502,125 A243V probably damaging Het
Cntnap1 T A 11: 101,183,019 N665K probably damaging Het
Colgalt2 C T 1: 152,484,998 T262I possibly damaging Het
Cyp24a1 T C 2: 170,496,178 I149V probably benign Het
Cyp2a5 T A 7: 26,835,545 probably null Het
Dab2 A G 15: 6,336,599 probably null Het
Dnah17 T A 11: 118,026,780 I4158F probably damaging Het
Dnm2 G A 9: 21,474,679 probably null Het
Dpp7 A T 2: 25,352,386 probably benign Het
Epha6 T A 16: 59,960,413 I642F probably damaging Het
Erbb4 T C 1: 68,330,238 S415G probably benign Het
Fancd2 A G 6: 113,553,722 T439A probably benign Het
Fat1 G A 8: 45,013,065 V1431M possibly damaging Het
Fhod3 G A 18: 25,090,248 A884T probably benign Het
Fsip2 A G 2: 82,990,171 D5416G possibly damaging Het
Gabarap C T 11: 69,991,852 probably benign Het
Gm11544 C T 11: 94,845,706 noncoding transcript Het
Gnat2 A C 3: 108,100,648 K304Q probably benign Het
Gramd4 C T 15: 86,134,856 A575V probably benign Het
Gtpbp10 G A 5: 5,539,295 A274V possibly damaging Het
Gzmb A G 14: 56,260,222 I187T probably damaging Het
H2-M10.2 G A 17: 36,284,327 T315I probably damaging Het
Haus5 A T 7: 30,657,027 F524I probably damaging Het
Herc1 A G 9: 66,495,971 S4391G probably benign Het
Herc2 T A 7: 56,098,417 L511* probably null Het
Htt T A 5: 34,824,840 C923S probably benign Het
Idua T C 5: 108,669,381 S7P probably benign Het
Ighv16-1 A T 12: 114,068,846 L112Q probably damaging Het
Igkv1-110 A G 6: 68,271,201 K98R probably benign Het
Kif15 G A 9: 123,002,126 probably null Het
Leng9 C A 7: 4,149,030 G216W probably damaging Het
Lrpprc A G 17: 84,707,156 L1306S probably benign Het
Lztfl1 C A 9: 123,715,389 E20D possibly damaging Het
Maob T C X: 16,716,423 T400A probably benign Het
Map3k4 C T 17: 12,271,780 E255K probably damaging Het
Megf9 G A 4: 70,534,428 T132M probably damaging Het
Mob4 T C 1: 55,145,252 probably benign Het
Mttp G A 3: 138,116,050 A252V probably benign Het
Mxi1 A G 19: 53,370,314 D226G probably damaging Het
Myh14 A G 7: 44,625,142 S1249P probably benign Het
Mylk G A 16: 34,922,367 G1083D probably benign Het
Mylk4 T G 13: 32,721,977 I408L probably benign Het
Nbas A G 12: 13,483,739 S1792G probably benign Het
Nelfb A G 2: 25,209,969 V212A probably damaging Het
Nisch T C 14: 31,177,630 probably benign Het
Nqo1 C G 8: 107,388,845 D267H probably benign Het
Olfr1037 C A 2: 86,084,846 L310F probably benign Het
Pcid2 T A 8: 13,085,425 I195F probably damaging Het
Pcnx2 A T 8: 125,752,188 M2107K probably damaging Het
Pgd A T 4: 149,156,591 probably benign Het
Prim2 T C 1: 33,464,064 M430V probably benign Het
Prkaa1 A G 15: 5,160,620 T40A probably damaging Het
Ptges T C 2: 30,903,220 probably benign Het
Ptprn T C 1: 75,258,265 E226G probably benign Het
Rab14 A G 2: 35,189,966 F55S probably damaging Het
Ralgps2 A T 1: 156,857,067 probably benign Het
Rgs11 C T 17: 26,207,568 H258Y probably benign Het
Rhpn2 T C 7: 35,376,349 probably null Het
Rprd2 A T 3: 95,774,171 V452E probably damaging Het
Scube3 C A 17: 28,166,015 H646Q probably damaging Het
Selp A T 1: 164,126,340 I70F probably damaging Het
Sept2 A G 1: 93,499,127 I153V probably damaging Het
Sh3rf3 G A 10: 58,814,083 S170N probably benign Het
Skint4 A T 4: 112,143,766 I353F possibly damaging Het
Slc16a12 A G 19: 34,680,380 I41T possibly damaging Het
Snai2 T C 16: 14,707,017 F129S probably damaging Het
Trim17 T A 11: 58,971,444 V434E probably damaging Het
Ttn G A 2: 76,784,983 P15051L probably damaging Het
Uggt2 A T 14: 119,001,847 I1391N probably damaging Het
Usp8 A T 2: 126,755,038 M923L probably damaging Het
Vmn1r176 T C 7: 23,835,038 H230R possibly damaging Het
Vmn1r217 C A 13: 23,113,989 D248Y probably damaging Het
Vmn2r14 A T 5: 109,216,110 C647S probably damaging Het
Vwa5b1 A G 4: 138,605,540 I237T probably damaging Het
Zan T A 5: 137,393,161 D4687V unknown Het
Zfp273 T C 13: 67,825,365 V204A probably benign Het
Zfp956 T G 6: 47,952,053 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
R0883:Top3b UTSW 16 16879437 splice site probably benign
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 unclassified probably null
R4292:Top3b UTSW 16 16883519 missense probably damaging 1.00
R4307:Top3b UTSW 16 16889617 splice site probably benign
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 unclassified 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
X0011:Top3b UTSW 16 16890189 missense probably benign 0.00
Predicted Primers PCR Primer
(F):5'- ACACTTGGATCCTTGACCATG -3'
(R):5'- CTGTTGGCCAGAGTGAATAGAC -3'

Sequencing Primer
(F):5'- CCATGTGTGGTGGCCTC -3'
(R):5'- ACAATGTGTATACAGCCTGATGG -3'
Posted On2016-03-01