Incidental Mutation 'R5969:Top3b'
ID 472428
Institutional Source Beutler Lab
Gene Symbol Top3b
Ensembl Gene ENSMUSG00000022779
Gene Name topoisomerase (DNA) III beta
Synonyms Topo III beta
MMRRC Submission 044152-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.248) question?
Stock # R5969 (G1)
Quality Score 225
Status Validated
Chromosome 16
Chromosomal Location 16688600-16710854 bp(+) (GRCm39)
Type of Mutation critical splice donor site (2 bp from exon)
DNA Base Change (assembly) T to C at 16701429 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change
Ref Sequence ENSEMBL: ENSMUSP00000156132 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000023465] [ENSMUST00000119787] [ENSMUST00000139740] [ENSMUST00000231812] [ENSMUST00000232080] [ENSMUST00000232017] [ENSMUST00000232547] [ENSMUST00000232581] [ENSMUST00000232231] [ENSMUST00000232200]
AlphaFold Q9Z321
Predicted Effect probably null
Transcript: ENSMUST00000023465
SMART Domains Protein: ENSMUSP00000023465
Gene: ENSMUSG00000022779

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 noncoding transcript
Transcript: ENSMUST00000118424
Predicted Effect probably null
Transcript: ENSMUST00000119787
SMART Domains Protein: ENSMUSP00000112913
Gene: ENSMUSG00000022779

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 noncoding transcript
Transcript: ENSMUST00000125202
Predicted Effect noncoding transcript
Transcript: ENSMUST00000128407
Predicted Effect noncoding transcript
Transcript: ENSMUST00000128497
Predicted Effect noncoding transcript
Transcript: ENSMUST00000129969
Predicted Effect probably null
Transcript: ENSMUST00000156951
SMART Domains Protein: ENSMUSP00000115214
Gene: ENSMUSG00000022779

DomainStartEndE-ValueType
TOP1Ac 84 340 2.28e-104 SMART
Predicted Effect probably null
Transcript: ENSMUST00000139740
SMART Domains Protein: ENSMUSP00000118398
Gene: ENSMUSG00000022779

DomainStartEndE-ValueType
TOPRIM 3 138 2.64e-27 SMART
TOP1Bc 146 242 3.84e-38 SMART
Predicted Effect noncoding transcript
Transcript: ENSMUST00000135597
Predicted Effect noncoding transcript
Transcript: ENSMUST00000138618
Predicted Effect noncoding transcript
Transcript: ENSMUST00000147531
Predicted Effect noncoding transcript
Transcript: ENSMUST00000150424
Predicted Effect probably null
Transcript: ENSMUST00000232117
Predicted Effect noncoding transcript
Transcript: ENSMUST00000231576
Predicted Effect probably benign
Transcript: ENSMUST00000231812
Predicted Effect probably null
Transcript: ENSMUST00000232080
Predicted Effect noncoding transcript
Transcript: ENSMUST00000231834
Predicted Effect probably benign
Transcript: ENSMUST00000232017
Predicted Effect noncoding transcript
Transcript: ENSMUST00000231432
Predicted Effect noncoding transcript
Transcript: ENSMUST00000231278
Predicted Effect noncoding transcript
Transcript: ENSMUST00000232153
Predicted Effect probably benign
Transcript: ENSMUST00000232547
Predicted Effect noncoding transcript
Transcript: ENSMUST00000232523
Predicted Effect probably null
Transcript: ENSMUST00000232581
Predicted Effect noncoding transcript
Transcript: ENSMUST00000232656
Predicted Effect probably benign
Transcript: ENSMUST00000232231
Predicted Effect probably benign
Transcript: ENSMUST00000232200
Predicted Effect noncoding transcript
Transcript: ENSMUST00000232380
Predicted Effect noncoding transcript
Transcript: ENSMUST00000232531
Meta Mutation Damage Score 0.9488 question?
Coding Region Coverage
  • 1x: 99.9%
  • 3x: 99.6%
  • 10x: 98.1%
  • 20x: 94.2%
Validation Efficiency 99% (67/68)
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: 59 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Aaas A C 15: 102,258,999 (GRCm39) Y19D probably damaging Het
Abca13 T A 11: 9,242,214 (GRCm39) L1359* probably null Het
Ahi1 A T 10: 20,860,292 (GRCm39) D671V probably damaging Het
Ahnak T C 19: 8,993,949 (GRCm39) S5078P probably damaging Het
Ankhd1 A T 18: 36,733,887 (GRCm39) T584S probably damaging Het
Apba2 T A 7: 64,394,195 (GRCm39) L568* probably null Het
Cenpn C A 8: 117,667,276 (GRCm39) L300I probably damaging Het
Cmya5 A T 13: 93,226,052 (GRCm39) L3012Q possibly damaging Het
Cnnm1 T C 19: 43,479,911 (GRCm39) S819P probably damaging Het
Cpa6 A T 1: 10,559,108 (GRCm39) S87T probably benign Het
Crybg2 T A 4: 133,803,003 (GRCm39) probably null Het
Csmd1 T A 8: 16,121,367 (GRCm39) T1777S probably benign Het
Csmd3 G T 15: 47,811,386 (GRCm39) P1235Q probably damaging Het
Cxcr4 T A 1: 128,517,584 (GRCm39) N24Y probably benign Het
D630003M21Rik G T 2: 158,059,628 (GRCm39) H91N probably damaging Het
Ece1 T C 4: 137,689,051 (GRCm39) probably null Het
Edc3 T C 9: 57,620,711 (GRCm39) S11P probably damaging Het
Eif1ad14 T C 12: 87,886,248 (GRCm39) D127G unknown Het
Exoc3 G A 13: 74,320,305 (GRCm39) Q719* probably null Het
Fam13a A G 6: 58,942,183 (GRCm39) M203T probably damaging Het
Fchsd1 C T 18: 38,092,926 (GRCm39) probably benign Het
Fhip2a C T 19: 57,372,555 (GRCm39) R602* probably null Het
Fxyd2 T A 9: 45,319,628 (GRCm39) I30N probably damaging Het
Gapt A G 13: 110,490,480 (GRCm39) V61A probably benign Het
Glb1l2 C T 9: 26,692,038 (GRCm39) A74T probably damaging Het
Gpr35 T C 1: 92,910,942 (GRCm39) V2A probably damaging Het
Gtf3c1 A G 7: 125,244,848 (GRCm39) S1729P possibly damaging Het
Heatr5a T C 12: 52,005,823 (GRCm39) T51A probably benign Het
Kat6b G A 14: 21,720,860 (GRCm39) M1737I probably damaging Het
Kif20a G A 18: 34,765,468 (GRCm39) A822T probably benign Het
Klk10 A G 7: 43,434,409 (GRCm39) Y267C probably damaging Het
Lgmn T C 12: 102,372,086 (GRCm39) Y98C probably damaging Het
Lyst A C 13: 13,862,398 (GRCm39) probably null Het
Man2a1 A G 17: 64,932,375 (GRCm39) K154R probably benign Het
Mfng A T 15: 78,648,582 (GRCm39) V165D possibly damaging Het
Mto1 A G 9: 78,360,187 (GRCm39) E225G probably damaging Het
Notch3 C A 17: 32,372,858 (GRCm39) C571F probably damaging Het
Nup205 C T 6: 35,154,513 (GRCm39) probably benign Het
Or51b6 T A 7: 103,556,117 (GRCm39) I157N probably damaging Het
P2ry14 T A 3: 59,022,579 (GRCm39) I303F probably damaging Het
Pcnx3 T C 19: 5,735,563 (GRCm39) D421G probably damaging Het
Pdlim4 T C 11: 53,954,482 (GRCm39) H75R possibly damaging Het
Phf21a A T 2: 92,051,956 (GRCm39) H17L probably damaging Het
Ppid T A 3: 79,505,024 (GRCm39) N122K probably damaging Het
Ppp4r3a T C 12: 101,009,838 (GRCm39) I613V probably benign Het
Prcp C T 7: 92,566,974 (GRCm39) P229S probably benign Het
Ralgds T C 2: 28,432,426 (GRCm39) V85A probably damaging Het
Rgs22 G A 15: 36,015,782 (GRCm39) T1034I probably benign Het
Slc4a3 T C 1: 75,526,623 (GRCm39) V48A probably damaging Het
Snx16 A T 3: 10,503,217 (GRCm39) M10K possibly damaging Het
Svep1 G A 4: 58,070,977 (GRCm39) Q2270* probably null Het
Tmem185b T G 1: 119,455,193 (GRCm39) I318S probably benign Het
Tnik C T 3: 28,675,097 (GRCm39) R657C probably damaging Het
Trim40 C T 17: 37,193,319 (GRCm39) R203H probably benign Het
Triobp T A 15: 78,851,740 (GRCm39) N631K probably benign Het
Ubr3 T G 2: 69,809,730 (GRCm39) Y1233* probably null Het
Vgll3 A G 16: 65,636,449 (GRCm39) D200G probably damaging Het
Vmn2r24 G A 6: 123,755,981 (GRCm39) E18K probably benign Het
Zfp141 C A 7: 42,138,912 (GRCm39) R40L probably damaging Het
Other mutations in Top3b
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00823:Top3b APN 16 16,705,486 (GRCm39) missense probably damaging 0.97
IGL01512:Top3b APN 16 16,709,286 (GRCm39) missense possibly damaging 0.74
IGL01552:Top3b APN 16 16,705,687 (GRCm39) splice site probably benign
IGL01738:Top3b APN 16 16,698,468 (GRCm39) missense probably benign 0.04
IGL02090:Top3b APN 16 16,709,334 (GRCm39) missense possibly damaging 0.81
R0143:Top3b UTSW 16 16,701,389 (GRCm39) missense probably damaging 0.97
R0883:Top3b UTSW 16 16,697,301 (GRCm39) splice site probably benign
R1386:Top3b UTSW 16 16,698,493 (GRCm39) missense probably benign 0.29
R1440:Top3b UTSW 16 16,710,641 (GRCm39) nonsense probably null
R1958:Top3b UTSW 16 16,702,166 (GRCm39) missense possibly damaging 0.52
R1970:Top3b UTSW 16 16,701,383 (GRCm39) missense probably damaging 1.00
R4211:Top3b UTSW 16 16,700,396 (GRCm39) splice site probably null
R4292:Top3b UTSW 16 16,701,383 (GRCm39) missense probably damaging 1.00
R4307:Top3b UTSW 16 16,707,481 (GRCm39) splice site probably benign
R4832:Top3b UTSW 16 16,708,526 (GRCm39) nonsense probably null
R5047:Top3b UTSW 16 16,709,282 (GRCm39) missense probably benign 0.00
R5364:Top3b UTSW 16 16,704,834 (GRCm39) missense probably benign 0.00
R5590:Top3b UTSW 16 16,709,441 (GRCm39) intron probably benign
R5604:Top3b UTSW 16 16,707,399 (GRCm39) nonsense probably null
R5719:Top3b UTSW 16 16,703,700 (GRCm39) missense probably damaging 1.00
R6018:Top3b UTSW 16 16,710,756 (GRCm39) missense probably damaging 1.00
R6144:Top3b UTSW 16 16,697,005 (GRCm39) splice site probably null
R6155:Top3b UTSW 16 16,709,373 (GRCm39) missense probably damaging 1.00
R6341:Top3b UTSW 16 16,696,935 (GRCm39) missense probably damaging 0.98
R6700:Top3b UTSW 16 16,710,533 (GRCm39) missense possibly damaging 0.48
R7417:Top3b UTSW 16 16,695,714 (GRCm39) start gained probably benign
R7586:Top3b UTSW 16 16,709,232 (GRCm39) missense probably benign 0.44
R7747:Top3b UTSW 16 16,705,585 (GRCm39) missense probably benign 0.17
R8382:Top3b UTSW 16 16,705,867 (GRCm39) missense probably damaging 1.00
R8438:Top3b UTSW 16 16,709,364 (GRCm39) missense probably benign 0.04
R9142:Top3b UTSW 16 16,701,299 (GRCm39) missense probably damaging 1.00
R9311:Top3b UTSW 16 16,700,563 (GRCm39) critical splice donor site probably null
R9630:Top3b UTSW 16 16,710,354 (GRCm39) missense probably benign 0.03
X0011:Top3b UTSW 16 16,708,053 (GRCm39) missense probably benign 0.00
Predicted Primers PCR Primer
(F):5'- CAACCTAGGTTTACATGGGTTTG -3'
(R):5'- AAGCTGGTGACTCTACCTCCTG -3'

Sequencing Primer
(F):5'- ACCTAGGTTTACATGGGTTTGTCTAG -3'
(R):5'- GTGACTCTACCTCCTGGGCAC -3'
Posted On 2017-04-03