Mutagenetix > Incidental Mutation

Incidental Mutation 'R8031:Top2b'

617974

Institutional Source

Beutler Lab

Gene Symbol

Top2b

Ensembl Gene

ENSMUSG00000017485

Gene Name

topoisomerase (DNA) II beta

Synonyms

Top-2, D230016L12Rik

MMRRC Submission

067469-MU

Accession Numbers

Essential gene?

Probably essential (E-score: 0.924) question?

Stock #

R8031 (G1)

Quality Score

225.009

Status

Validated

Chromosome

Chromosomal Location

6038976-6104585 bp(-) (GRCm39)

Type of Mutation

missense

DNA Base Change (assembly)

A to G at 16412986 bp (GRCm38)

Zygosity

Heterozygous

Amino Acid Change

Aspartic acid to Glycine at position 965 (D965G)

Ref Sequence

ENSEMBL: ENSMUSP00000017629 (fasta)

Gene Model

predicted gene model for transcript(s): [ENSMUST00000017629] [ENSMUST00000161693]

AlphaFold

Q64511

Predicted Effect

probably damaging
Transcript: ENSMUST00000017629
AA Change: D965G

PolyPhen 2 Score 0.981 (Sensitivity: 0.75; Specificity: 0.96)

SMART Domains

Protein: ENSMUSP00000017629
Gene: ENSMUSG00000017485
AA Change: D965G

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

Predicted Effect

SMART Domains

Protein: ENSMUSP00000124889
Gene: ENSMUSG00000017485
AA Change: D107G

Domain	Start	End	E-Value	Type
TOP4c	2	222	3.97e-12	SMART

Predicted Effect

probably benign
Transcript: ENSMUST00000161693

SMART Domains

Protein: ENSMUSP00000123992
Gene: ENSMUSG00000017485

Domain	Start	End	E-Value	Type
Pfam:DNA_topoisoIV	1	117	1.2e-12	PFAM
low complexity region	161	173	N/A	INTRINSIC
low complexity region	198	210	N/A	INTRINSIC
low complexity region	234	256	N/A	INTRINSIC

Coding Region Coverage

1x: 100.0%
3x: 100.0%
10x: 99.7%
20x: 99.0%

Validation Efficiency

100% (60/60)

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: 61 list
Gene	Ref	Var	Chr/Loc	Mutation	Predicted Effect	Zygosity
Ace3	T	C	11: 105,888,924 (GRCm39)		probably null	Het
Arhgdib	A	G	6: 136,901,274 (GRCm39)	Y152H	probably benign	Het
Atxn10	T	G	15: 85,277,594 (GRCm39)	S354A	probably benign	Het
Cacng6	T	C	7: 3,473,401 (GRCm39)	V75A	possibly damaging	Het
Cdc23	A	G	18: 34,784,741 (GRCm39)	V7A	unknown	Het
Cdc40	T	A	10: 40,728,512 (GRCm39)	E157D	probably benign	Het
Defa25	T	A	8: 21,575,253 (GRCm39)	N77K	probably benign	Het
Dsc2	C	T	18: 20,165,331 (GRCm39)	G881R	possibly damaging	Het
Efcab3	T	C	11: 104,772,295 (GRCm39)	V2659A	possibly damaging	Het
Efcab6	T	C	15: 83,867,699 (GRCm39)	K260E	possibly damaging	Het
Eif4a3	T	C	11: 119,179,731 (GRCm39)	Y352C	probably damaging	Het
Erc2	A	T	14: 27,733,649 (GRCm39)	K566N	probably damaging	Het
Fam3b	A	C	16: 97,283,052 (GRCm39)	Y74*	probably null	Het
Flg2	T	A	3: 93,127,521 (GRCm39)	S2144R	unknown	Het
Fmo4	G	T	1: 162,626,421 (GRCm39)	S375*	probably null	Het
Fsip2	A	G	2: 82,817,235 (GRCm39)	T4323A	probably benign	Het
Gm16503	A	T	4: 147,625,767 (GRCm39)	H87L	unknown	Het
Hes7	C	T	11: 69,013,591 (GRCm39)	A150V	probably damaging	Het
Hk1	T	A	10: 62,132,478 (GRCm39)	N190I	probably benign	Het
Il17rc	A	G	6: 113,459,782 (GRCm39)	D576G	probably damaging	Het
Inhba	T	A	13: 16,200,860 (GRCm39)	S141T	possibly damaging	Het
Itga8	G	T	2: 12,160,297 (GRCm39)	D840E	probably benign	Het
Kazn	T	C	4: 141,881,862 (GRCm39)	E126G		Het
Kcnk13	A	G	12: 99,932,438 (GRCm39)	Y78C	probably damaging	Het
Kcnt1	C	A	2: 25,798,054 (GRCm39)		probably benign	Het
Krt42	G	C	11: 100,155,865 (GRCm39)	R294G	possibly damaging	Het
Myo9a	A	G	9: 59,687,374 (GRCm39)	K160E	probably benign	Het
Nlrp1b	T	C	11: 71,107,747 (GRCm39)	R585G	probably benign	Het
Ntrk2	T	C	13: 59,022,193 (GRCm39)	I416T	probably benign	Het
Or4c112	A	T	2: 88,853,972 (GRCm39)	I125N	probably damaging	Het
Or52h7	T	A	7: 104,214,316 (GRCm39)	I296N	probably damaging	Het
Or5k14	T	C	16: 58,693,054 (GRCm39)	N153S	probably benign	Het
Or8k33	G	A	2: 86,384,447 (GRCm39)	T7I	probably damaging	Het
P4ha3	A	G	7: 99,941,905 (GRCm39)	E106G	probably damaging	Het
Pcif1	A	G	2: 164,728,442 (GRCm39)	N233S	probably damaging	Het
Pgm2l1	C	A	7: 99,921,625 (GRCm39)	R619S	probably damaging	Het
Pkhd1l1	A	G	15: 44,376,230 (GRCm39)	Q964R	probably damaging	Het
Pla2g4a	T	A	1: 149,776,964 (GRCm39)	I89F	possibly damaging	Het
Ppp1cc	G	A	5: 122,312,151 (GRCm39)	A306T	probably benign	Het
Psmd4	T	C	3: 94,943,203 (GRCm39)	D67G	probably damaging	Het
Ptprt	G	A	2: 161,977,377 (GRCm39)	T307I	probably damaging	Het
Rnf213	C	A	11: 119,321,107 (GRCm39)	C1188*	probably null	Het
Ror2	C	T	13: 53,267,193 (GRCm39)	C426Y	probably damaging	Het
Sacs	C	T	14: 61,441,640 (GRCm39)	H1229Y	probably damaging	Het
Slc25a25	A	T	2: 32,311,517 (GRCm39)	L118Q	probably damaging	Het
Slc38a6	G	A	12: 73,397,377 (GRCm39)	A340T	probably benign	Het
Smarca5	A	T	8: 81,431,311 (GRCm39)	Y969N	probably damaging	Het
Sorbs1	C	A	19: 40,314,933 (GRCm39)	M626I	probably benign	Het
Spink5	T	A	18: 44,143,303 (GRCm39)	D753E	probably benign	Het
Taf1d	T	G	9: 15,221,695 (GRCm39)	I226S	probably damaging	Het
Tmem225	A	G	9: 40,060,689 (GRCm39)	I83V	possibly damaging	Het
Traf3ip1	A	G	1: 91,429,141 (GRCm39)	K303E	probably damaging	Het
Ube2n	C	T	10: 95,377,244 (GRCm39)	R70C	probably benign	Het
Ubl7	C	T	9: 57,830,489 (GRCm39)	P312S	probably damaging	Het
Vmn1r34	A	T	6: 66,614,165 (GRCm39)	M191K	probably damaging	Het
Vmn2r103	C	T	17: 20,013,759 (GRCm39)	H184Y	probably benign	Het
Vmn2r104	T	C	17: 20,263,048 (GRCm39)	I138V	probably benign	Het
Vmn2r49	T	C	7: 9,720,408 (GRCm39)	E361G	possibly damaging	Het
Vmn2r78	T	C	7: 86,604,075 (GRCm39)	L751P	probably damaging	Het
Zc3h13	T	A	14: 75,568,070 (GRCm39)	I1121N	not run	Het
Zfp235	T	A	7: 23,841,114 (GRCm39)	V511E	probably benign	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
R4157:Top2b	UTSW	14	16,384,491 (GRCm38)	missense	probably benign	0.42
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
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'- CAGAACCTGCATATTGTATGGC -3'
(R):5'- AGCATTCAAGTTCATTGTTGTGGC -3'

Sequencing Primer
(F):5'- GTATGGCTTTTCTCACCATCAAGG -3'
(R):5'- AAAAACTTTATGCAGGCCA -3'

Posted On

2020-01-23