Incidental Mutation 'IGL00823:Top3b'
ID14549
Institutional Source Australian Phenomics Network (link to record)
Gene Symbol Top3b
Ensembl Gene ENSMUSG00000022779
Gene Nametopoisomerase (DNA) III beta
SynonymsTopo III beta
Accession Numbers
Is this an essential gene? Possibly non essential (E-score: 0.280) question?
Stock #IGL00823
Quality Score
Status
Chromosome16
Chromosomal Location16870736-16892990 bp(+) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) T to C at 16887622 bp
ZygosityHeterozygous
Amino Acid Change Isoleucine to Threonine at position 417 (I417T)
Ref Sequence ENSEMBL: ENSMUSP00000156132 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000023465] [ENSMUST00000119787] [ENSMUST00000139740] [ENSMUST00000156502] [ENSMUST00000232017] [ENSMUST00000232080] [ENSMUST00000232581]
Predicted Effect probably damaging
Transcript: ENSMUST00000023465
AA Change: I417T

PolyPhen 2 Score 0.968 (Sensitivity: 0.77; Specificity: 0.95)
SMART Domains Protein: ENSMUSP00000023465
Gene: ENSMUSG00000022779
AA Change: I417T

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 damaging
Transcript: ENSMUST00000119787
AA Change: I417T

PolyPhen 2 Score 0.968 (Sensitivity: 0.77; Specificity: 0.95)
SMART Domains Protein: ENSMUSP00000112913
Gene: ENSMUSG00000022779
AA Change: I417T

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 benign
Transcript: ENSMUST00000124185
SMART Domains Protein: ENSMUSP00000117491
Gene: ENSMUSG00000022779

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 probably benign
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: ENSMUST00000147531
Predicted Effect noncoding transcript
Transcript: ENSMUST00000150424
Predicted Effect noncoding transcript
Transcript: ENSMUST00000151271
Predicted Effect probably benign
Transcript: ENSMUST00000156502
SMART Domains Protein: ENSMUSP00000115491
Gene: ENSMUSG00000022779

DomainStartEndE-ValueType
TOPRIM 3 138 2.64e-27 SMART
TOP1Bc 146 234 4.29e-27 SMART
Predicted Effect
SMART Domains Protein: ENSMUSP00000115214
Gene: ENSMUSG00000022779
AA Change: I211T

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 benign
Transcript: ENSMUST00000231966
Predicted Effect probably benign
Transcript: ENSMUST00000232017
Predicted Effect probably benign
Transcript: ENSMUST00000232080
Predicted Effect unknown
Transcript: ENSMUST00000232117
AA Change: I211T
Predicted Effect noncoding transcript
Transcript: ENSMUST00000232153
Predicted Effect noncoding transcript
Transcript: ENSMUST00000232523
Predicted Effect noncoding transcript
Transcript: ENSMUST00000232531
Predicted Effect probably damaging
Transcript: ENSMUST00000232581
AA Change: I417T

PolyPhen 2 Score 0.968 (Sensitivity: 0.77; Specificity: 0.95)
Predicted Effect noncoding transcript
Transcript: ENSMUST00000232656
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 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: 41 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Aasdh T C 5: 76,878,534 probably benign Het
Adam5 T C 8: 24,818,742 E39G probably benign Het
Anapc7 G A 5: 122,433,477 W205* probably null Het
Arhgap5 C T 12: 52,518,742 T832I possibly damaging Het
Arhgef10 T A 8: 14,940,378 probably benign Het
Atg5 A G 10: 44,363,044 T274A probably benign Het
Baiap2l2 G T 15: 79,284,565 probably benign Het
Brap T A 5: 121,665,227 M146K probably damaging Het
Brpf1 T C 6: 113,321,886 S1074P probably benign Het
Camta1 A C 4: 151,084,601 I231R probably benign Het
Ccdc15 C T 9: 37,320,413 G205D probably benign Het
Cd6 G T 19: 10,796,394 probably benign Het
Cdh17 T G 4: 11,783,412 S219R possibly damaging Het
Cgn G A 3: 94,767,209 R873W probably damaging Het
Ctnna3 C T 10: 63,537,543 P41L possibly damaging Het
Dmbt1 T C 7: 131,058,158 W484R probably benign Het
Dmd A G X: 84,425,813 probably null Het
Dnah17 C T 11: 118,047,161 V3347I probably benign Het
Fam122b A T X: 53,245,331 C222S probably damaging Het
Fgd5 T A 6: 91,988,459 S400T possibly damaging Het
Kitl C A 10: 100,087,344 probably benign Het
Lamc3 A T 2: 31,918,521 D763V probably damaging Het
Lgmn T C 12: 102,398,176 probably benign Het
Lpcat2 T G 8: 92,864,970 W81G possibly damaging Het
Myh13 A G 11: 67,355,947 I1165V probably benign Het
Nf1 A G 11: 79,565,517 D599G probably damaging Het
Nin T C 12: 70,014,793 N2099S probably benign Het
Nlrc4 T C 17: 74,447,990 D77G probably benign Het
Otub1 A G 19: 7,204,051 probably benign Het
Pah A G 10: 87,570,331 Y174C probably null Het
Papd4 T C 13: 93,186,397 T15A probably benign Het
Rbbp5 G A 1: 132,489,706 V88I probably damaging Het
Scn1a C T 2: 66,324,935 R560H probably benign Het
Snx5 T C 2: 144,255,565 I217V probably benign Het
Syne2 T C 12: 75,989,242 S3769P probably damaging Het
Tmem255b T C 8: 13,457,054 M261T probably benign Het
Tspan2 T C 3: 102,758,233 probably null Het
Ttn T C 2: 76,709,713 T34310A possibly damaging Het
Ush2a G A 1: 188,911,443 C4334Y possibly damaging Het
Wdpcp A G 11: 21,659,995 D21G probably damaging Het
Yy2 A C X: 157,568,211 D186E probably benign Het
Other mutations in Top3b
AlleleSourceChrCoordTypePredicted EffectPPH Score
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
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 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
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
X0011:Top3b UTSW 16 16890189 missense probably benign 0.00
Posted On2012-12-06