Mutagenetix > Incidental Mutation

Incidental Mutation 'R4157:Top2b'

315602

Institutional Source

Beutler Lab

Gene Symbol

Top2b

Ensembl Gene

ENSMUSG00000017485

Gene Name

topoisomerase (DNA) II beta

Synonyms

Top-2, D230016L12Rik

MMRRC Submission

041000-MU

Accession Numbers

Essential gene?

Probably essential (E-score: 0.929) question?

Stock #

R4157 (G1)

Quality Score

225

Status

Validated

Chromosome

Chromosomal Location

6038976-6104585 bp(-) (GRCm39)

Type of Mutation

missense

DNA Base Change (assembly)

A to G at 16384491 bp (GRCm38)

Zygosity

Heterozygous

Amino Acid Change

Asparagine to Serine at position 80 (N80S)

Ref Sequence

ENSEMBL: ENSMUSP00000017629 (fasta)

Gene Model

predicted gene model for transcript(s): [ENSMUST00000017629]

AlphaFold

Q64511

Predicted Effect

probably benign
Transcript: ENSMUST00000017629
AA Change: N80S

PolyPhen 2 Score 0.423 (Sensitivity: 0.89; Specificity: 0.90)

SMART Domains

Protein: ENSMUSP00000017629
Gene: ENSMUSG00000017485
AA Change: N80S

Domain	Start	End	E-Value	Type
Blast:TOP2c	32	70	7e-10	BLAST
HATPase_c	85	234	1.91e-2	SMART
TOP2c	89	679	N/A	SMART
TOP4c	702	1175	2.55e-230	SMART
low complexity region	1201	1215	N/A	INTRINSIC
low complexity region	1287	1299	N/A	INTRINSIC
low complexity region	1324	1336	N/A	INTRINSIC
low complexity region	1360	1382	N/A	INTRINSIC
Pfam:DTHCT	1495	1597	4.6e-31	PFAM

Meta Mutation Damage Score

0.0612

Coding Region Coverage

1x: 99.3%
3x: 98.7%
10x: 97.6%
20x: 96.1%

Validation Efficiency

95% (52/55)

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, beta, is localized to chromosome 3 and the alpha form is localized to chromosome 17. 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. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2016]
PHENOTYPE: Homozygous null mice exhibit abnormal innervation. Offspring die shortly after birth due to respiratory failure. [provided by MGI curators]

Allele List at MGI

Other mutations in this stock

Total: 47 list
Gene	Ref	Var	Chr/Loc	Mutation	Predicted Effect	Zygosity
Adamts7	G	T	9: 90,070,414 (GRCm39)	R585L	probably damaging	Het
Adamtsl5	C	T	10: 80,181,156 (GRCm39)	R75Q	probably null	Het
Ankrd26	T	A	6: 118,484,782 (GRCm39)	Q1485L	probably damaging	Het
Apbb2	G	A	5: 66,459,947 (GRCm39)	R717*	probably null	Het
Arl6ip1	AAAATAAATAAATAAATAAATAAATA	AAAATAAATAAATAAATAAATAAATAAATA	7: 117,721,122 (GRCm39)		probably benign	Het
Atp8b5	A	G	4: 43,365,591 (GRCm39)	E735G	probably damaging	Het
Bcl11b	A	T	12: 107,883,684 (GRCm39)		probably null	Het
C4b	A	G	17: 34,961,829 (GRCm39)	I139T	probably damaging	Het
Ccpg1	C	A	9: 72,919,449 (GRCm39)	Q355K	probably benign	Het
Cdk8	A	T	5: 146,236,259 (GRCm39)		probably benign	Het
Ctif	T	C	18: 75,568,341 (GRCm39)	H599R	probably benign	Het
Degs1	A	G	1: 182,110,192 (GRCm39)	I26T	possibly damaging	Het
Dnajc4	T	C	19: 6,967,208 (GRCm39)	N72S	probably damaging	Het
Ecd	A	G	14: 20,374,632 (GRCm39)	S503P	probably damaging	Het
Gm3486	G	A	14: 41,208,343 (GRCm39)	L123F	probably benign	Het
Inpp5f	C	T	7: 128,281,423 (GRCm39)		probably benign	Het
Irx4	A	T	13: 73,413,662 (GRCm39)	Q44L	probably benign	Het
Krt9	T	A	11: 100,079,475 (GRCm39)	Y639F	unknown	Het
Lgals9	C	A	11: 78,863,933 (GRCm39)	V71L	possibly damaging	Het
Mdga1	T	C	17: 30,052,317 (GRCm39)	N143S	probably benign	Het
Ndufs4	A	T	13: 114,444,390 (GRCm39)	S129R	probably benign	Het
Nup50l	C	G	6: 96,142,264 (GRCm39)	W260S	possibly damaging	Het
Oog2	A	G	4: 143,920,523 (GRCm39)		probably benign	Het
Orm2	T	A	4: 63,282,222 (GRCm39)	F133L	probably null	Het
Pasd1	T	C	X: 70,983,161 (GRCm39)	C378R	possibly damaging	Het
Pidd1	A	G	7: 141,021,279 (GRCm39)	V333A	possibly damaging	Het
Ppp4r3a	A	G	12: 101,021,878 (GRCm39)	F341L	probably damaging	Het
Rab11fip1	A	T	8: 27,642,175 (GRCm39)	S875T	probably damaging	Het
Rpap1	C	T	2: 119,604,660 (GRCm39)	R416H	probably damaging	Het
Rpl31-ps17	C	T	12: 54,748,397 (GRCm39)		noncoding transcript	Het
Shroom3	G	T	5: 93,090,945 (GRCm39)	V1151F	probably damaging	Het
Snx22	T	C	9: 65,975,493 (GRCm39)	Y92C	probably damaging	Het
Srgn	A	G	10: 62,333,613 (GRCm39)	F55L	possibly damaging	Het
Swt1	A	T	1: 151,278,795 (GRCm39)	V454E	probably damaging	Het
Tmem54	G	A	4: 129,004,504 (GRCm39)	R151Q	probably damaging	Het
Tns1	T	A	1: 73,953,790 (GRCm39)	N1848Y	probably damaging	Het
Tns2	C	T	15: 102,017,369 (GRCm39)	R281C	probably damaging	Het
Trim7	T	C	11: 48,738,920 (GRCm39)	V313A	probably benign	Het
Uaca	A	G	9: 60,779,035 (GRCm39)	S1141G	probably benign	Het
Ubr3	T	C	2: 69,790,013 (GRCm39)		probably null	Het
Utp20	A	G	10: 88,597,729 (GRCm39)	V121A	probably benign	Het
Wdr20	G	A	12: 110,704,608 (GRCm39)	R49H	possibly damaging	Het
Ylpm1	T	C	12: 85,104,177 (GRCm39)		probably benign	Het
Zfp398	A	T	6: 47,812,843 (GRCm39)	T5S	probably benign	Het
Zfp410	G	A	12: 84,374,206 (GRCm39)	R181H	probably damaging	Het
Zfp523	C	T	17: 28,421,257 (GRCm39)	A367V	probably benign	Het
Zfp748	G	A	13: 67,690,225 (GRCm39)	S345L	possibly damaging	Het

Other mutations in Top2b

Allele	Source	Chr	Coord	Type	Predicted Effect	PPH Score
IGL00430:Top2b	APN	14	16,422,692 (GRCm38)	missense	probably benign	0.00
IGL00730:Top2b	APN	14	16,389,831 (GRCm38)	missense	probably damaging	1.00
IGL00917:Top2b	APN	14	16,407,354 (GRCm38)	missense	probably benign	0.05
IGL01959:Top2b	APN	14	16,422,695 (GRCm38)	missense	probably benign	0.19
IGL02019:Top2b	APN	14	16,409,965 (GRCm38)	missense	probably benign	0.44
IGL02119:Top2b	APN	14	16,406,733 (GRCm38)	missense	probably damaging	1.00
IGL02136:Top2b	APN	14	16,407,103 (GRCm38)	unclassified	probably benign
IGL02148:Top2b	APN	14	16,400,488 (GRCm38)	missense	probably damaging	1.00
IGL02496:Top2b	APN	14	16,387,335 (GRCm38)	missense	probably benign
IGL02503:Top2b	APN	14	16,407,163 (GRCm38)	missense	possibly damaging	0.92
IGL02672:Top2b	APN	14	16,409,166 (GRCm38)	unclassified	probably benign
IGL02721:Top2b	APN	14	16,409,236 (GRCm38)	missense	probably damaging	1.00
IGL02886:Top2b	APN	14	16,365,688 (GRCm38)	missense	possibly damaging	0.73
IGL03252:Top2b	APN	14	16,393,163 (GRCm38)	missense	possibly damaging	0.60
PIT4434001:Top2b	UTSW	14	16,423,780 (GRCm38)	critical splice donor site	probably null
R0092:Top2b	UTSW	14	16,409,263 (GRCm38)	missense	probably damaging	1.00
R0201:Top2b	UTSW	14	16,383,174 (GRCm38)	missense	probably damaging	1.00
R0390:Top2b	UTSW	14	16,418,442 (GRCm38)	missense	probably benign	0.00
R0394:Top2b	UTSW	14	16,413,556 (GRCm38)	splice site	probably null
R1159:Top2b	UTSW	14	16,430,329 (GRCm38)	missense	possibly damaging	0.81
R1424:Top2b	UTSW	14	16,383,177 (GRCm38)	missense	probably damaging	1.00
R1519:Top2b	UTSW	14	16,408,953 (GRCm38)	splice site	probably null
R1561:Top2b	UTSW	14	16,398,993 (GRCm38)	missense	possibly damaging	0.80
R1713:Top2b	UTSW	14	16,409,823 (GRCm38)	missense	probably benign	0.05
R1987:Top2b	UTSW	14	16,398,916 (GRCm38)	missense	probably damaging	0.99
R2219:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R2287:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R2422:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R2679:Top2b	UTSW	14	16,413,947 (GRCm38)	missense	probably damaging	1.00
R3687:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R3707:Top2b	UTSW	14	16,388,447 (GRCm38)	missense	probably damaging	1.00
R3810:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R3812:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R3815:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R3816:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R3818:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R4023:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R4025:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R4026:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R4133:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R4179:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R4180:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R4300:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R4376:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R4377:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R4492:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R4549:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R4550:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R4581:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R4582:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R4628:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R4630:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R4667:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R4668:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R4669:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R4698:Top2b	UTSW	14	16,387,331 (GRCm38)	nonsense	probably null
R4769:Top2b	UTSW	14	16,398,991 (GRCm38)	missense	probably damaging	1.00
R4809:Top2b	UTSW	14	16,383,125 (GRCm38)	missense	probably benign	0.06
R4899:Top2b	UTSW	14	16,387,313 (GRCm38)	missense	probably damaging	1.00
R5035:Top2b	UTSW	14	16,409,966 (GRCm38)	missense	probably benign	0.01
R5621:Top2b	UTSW	14	16,387,280 (GRCm38)	missense	probably damaging	1.00
R5631:Top2b	UTSW	14	16,409,882 (GRCm38)	missense	probably damaging	1.00
R5685:Top2b	UTSW	14	16,413,666 (GRCm38)	missense	probably damaging	1.00
R5732:Top2b	UTSW	14	16,400,106 (GRCm38)	missense	possibly damaging	0.92
R5939:Top2b	UTSW	14	16,422,786 (GRCm38)	missense	probably damaging	0.96
R6007:Top2b	UTSW	14	16,423,779 (GRCm38)	critical splice donor site	probably null
R6087:Top2b	UTSW	14	16,409,864 (GRCm38)	missense	probably benign	0.14
R6144:Top2b	UTSW	14	16,423,740 (GRCm38)	missense	possibly damaging	0.48
R6196:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R6218:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R6229:Top2b	UTSW	14	16,409,838 (GRCm38)	missense	probably damaging	1.00
R6249:Top2b	UTSW	14	16,399,006 (GRCm38)	missense	probably damaging	1.00
R6337:Top2b	UTSW	14	16,399,026 (GRCm38)	missense	possibly damaging	0.77
R6353:Top2b	UTSW	14	16,416,671 (GRCm38)	missense	probably damaging	1.00
R6512:Top2b	UTSW	14	16,409,854 (GRCm38)	missense	possibly damaging	0.94
R6573:Top2b	UTSW	14	16,398,991 (GRCm38)	missense	probably damaging	1.00
R6614:Top2b	UTSW	14	16,407,142 (GRCm38)	nonsense	probably null
R6844:Top2b	UTSW	14	16,429,383 (GRCm38)	missense	possibly damaging	0.94
R6848:Top2b	UTSW	14	16,409,958 (GRCm38)	missense	possibly damaging	0.89
R6871:Top2b	UTSW	14	16,409,189 (GRCm38)	missense	probably damaging	1.00
R6895:Top2b	UTSW	14	16,413,604 (GRCm38)	missense	probably benign	0.06
R7162:Top2b	UTSW	14	16,416,653 (GRCm38)	missense	probably benign	0.00
R7247:Top2b	UTSW	14	16,416,962 (GRCm38)	missense	probably benign	0.08
R7250:Top2b	UTSW	14	16,420,411 (GRCm38)	missense	probably benign
R7359:Top2b	UTSW	14	16,407,376 (GRCm38)	missense	probably null	1.00
R7365:Top2b	UTSW	14	16,416,649 (GRCm38)	missense	probably benign	0.04
R7493:Top2b	UTSW	14	16,416,605 (GRCm38)	missense	probably benign	0.00
R7528:Top2b	UTSW	14	16,395,427 (GRCm38)	nonsense	probably null
R7562:Top2b	UTSW	14	16,412,946 (GRCm38)	missense	probably benign	0.04
R7594:Top2b	UTSW	14	16,428,587 (GRCm38)	missense	probably benign
R7670:Top2b	UTSW	14	16,416,620 (GRCm38)	missense	possibly damaging	0.61
R7894:Top2b	UTSW	14	16,413,081 (GRCm38)	missense	possibly damaging	0.68
R8031:Top2b	UTSW	14	16,412,986 (GRCm38)	missense	probably damaging	0.98
R8150:Top2b	UTSW	14	16,393,291 (GRCm38)	missense	probably damaging	0.99
R8214:Top2b	UTSW	14	16,383,177 (GRCm38)	missense	probably damaging	1.00
R8299:Top2b	UTSW	14	16,386,123 (GRCm38)	missense	possibly damaging	0.68
R8977:Top2b	UTSW	14	16,393,239 (GRCm38)	missense	probably benign	0.36
R9562:Top2b	UTSW	14	16,365,718 (GRCm38)	missense	probably benign	0.09
R9565:Top2b	UTSW	14	16,365,718 (GRCm38)	missense	probably benign	0.09
R9798:Top2b	UTSW	14	16,389,845 (GRCm38)	missense	probably damaging	1.00
X0028:Top2b	UTSW	14	16,384,499 (GRCm38)	nonsense	probably null
Z1176:Top2b	UTSW	14	16,395,434 (GRCm38)	missense	probably damaging	1.00
Z1177:Top2b	UTSW	14	16,416,953 (GRCm38)	missense	probably benign

Predicted Primers

PCR Primer
(F):5'- ACTTCAGGTTTACTTTGAATGCCTG -3'
(R):5'- ACAGGCTCTCTATGGAATATGAATG -3'

Sequencing Primer
(F):5'- TGCATGTAGCCCAGATTAGC -3'
(R):5'- CTCTATGGAATATGAATGCAACACAC -3'

Posted On

2015-05-14