Mutagenetix > Incidental Mutation

Incidental Mutation 'R6337:Top2b'

513770

Institutional Source

Beutler Lab

Gene Symbol

Top2b

Ensembl Gene

ENSMUSG00000017485

Gene Name

topoisomerase (DNA) II beta

Synonyms

Top-2, D230016L12Rik

MMRRC Submission

044491-MU

Accession Numbers

Essential gene?

Probably essential (E-score: 0.924) question?

Stock #

R6337 (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 16399026 bp (GRCm38)

Zygosity

Heterozygous

Amino Acid Change

Threonine to Alanine at position 549 (T549A)

Ref Sequence

ENSEMBL: ENSMUSP00000017629 (fasta)

Gene Model

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

AlphaFold

Q64511

Predicted Effect

possibly damaging
Transcript: ENSMUST00000017629
AA Change: T549A

PolyPhen 2 Score 0.769 (Sensitivity: 0.85; Specificity: 0.92)

SMART Domains

Protein: ENSMUSP00000017629
Gene: ENSMUSG00000017485
AA Change: T549A

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

0.1752

Coding Region Coverage

1x: 99.9%
3x: 99.6%
10x: 98.0%
20x: 94.1%

Validation Efficiency

98% (61/62)

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: 62 list
Gene	Ref	Var	Chr/Loc	Mutation	Predicted Effect	Zygosity
4933434E20Rik	T	G	3: 89,969,040 (GRCm39)	V221G	probably benign	Het
Abca12	G	A	1: 71,334,172 (GRCm39)	A1110V	probably damaging	Het
Acsl6	C	A	11: 54,231,368 (GRCm39)	P462T	probably damaging	Het
Acsm5	G	A	7: 119,133,458 (GRCm39)	A208T	probably benign	Het
Adcyap1	T	A	17: 93,509,709 (GRCm39)	Y53*	probably null	Het
Adgrg7	T	A	16: 56,572,788 (GRCm39)	I343F	probably damaging	Het
Agl	T	A	3: 116,580,426 (GRCm39)	K376M	possibly damaging	Het
Akna	A	G	4: 63,292,240 (GRCm39)	Y1142H	probably benign	Het
Anks1b	A	T	10: 90,757,158 (GRCm39)	T182S	probably benign	Het
Apol7e	T	A	15: 77,598,582 (GRCm39)	Y16N	possibly damaging	Het
Bptf	G	T	11: 106,949,605 (GRCm39)	T2238K	possibly damaging	Het
Ccdc87	A	G	19: 4,889,829 (GRCm39)	E107G	probably benign	Het
Ccng2	C	T	5: 93,418,780 (GRCm39)	A135V	probably benign	Het
Chd8	C	A	14: 52,441,566 (GRCm39)	R842L	probably damaging	Het
Cldn18	T	A	9: 99,591,995 (GRCm39)	T3S	probably benign	Het
Dhcr7	T	C	7: 143,390,468 (GRCm39)		probably null	Het
Dnah8	G	A	17: 30,967,542 (GRCm39)	D2585N	probably benign	Het
Dusp26	T	C	8: 31,586,325 (GRCm39)	V182A	probably damaging	Het
Eif3e	T	C	15: 43,115,692 (GRCm39)	D358G	possibly damaging	Het
Epha3	A	T	16: 63,388,806 (GRCm39)	L814H	probably damaging	Het
Flnc	A	G	6: 29,454,318 (GRCm39)	N1877S	probably damaging	Het
Fpgs	A	T	2: 32,577,953 (GRCm39)	Y156*	probably null	Het
Gm10549	C	A	18: 33,597,358 (GRCm39)		probably benign	Het
Gm11595	G	A	11: 99,663,381 (GRCm39)	R100C	unknown	Het
Gm5591	T	C	7: 38,221,319 (GRCm39)	D250G	probably benign	Het
Gtf2e2	C	T	8: 34,266,043 (GRCm39)	R240*	probably null	Het
Hells	G	T	19: 38,943,254 (GRCm39)	Q519H	probably benign	Het
Hscb	A	G	5: 110,987,360 (GRCm39)		probably null	Het
Inpp5k	T	A	11: 75,537,640 (GRCm39)	I350N	probably damaging	Het
Irf9	G	A	14: 55,843,799 (GRCm39)	V221I	possibly damaging	Het
Itga8	A	T	2: 12,258,280 (GRCm39)	Y261*	probably null	Het
Itprid2	G	A	2: 79,485,463 (GRCm39)	D506N	probably damaging	Het
Lama1	C	T	17: 68,093,014 (GRCm39)	T1684M	probably benign	Het
Lrp2	A	T	2: 69,268,811 (GRCm39)	H4157Q	probably damaging	Het
Nceh1	G	T	3: 27,276,956 (GRCm39)	R93L	probably damaging	Het
Nell2	A	G	15: 95,283,025 (GRCm39)	F339S	probably damaging	Het
Or2t49	A	T	11: 58,392,838 (GRCm39)	C181*	probably null	Het
Phf11a	C	A	14: 59,521,817 (GRCm39)	C118F	probably damaging	Het
Purg	A	G	8: 33,876,451 (GRCm39)	K30E	possibly damaging	Het
Qprt	C	T	7: 126,708,101 (GRCm39)	R110H	probably damaging	Het
Robo2	T	C	16: 73,725,039 (GRCm39)	T1055A	probably benign	Het
Serpina3a	T	C	12: 104,079,137 (GRCm39)	F10L	probably benign	Het
Sidt1	A	T	16: 44,121,298 (GRCm39)		probably null	Het
Slc4a4	T	A	5: 89,194,231 (GRCm39)	M237K	probably benign	Het
Slitrk5	A	T	14: 111,917,684 (GRCm39)	D436V	probably damaging	Het
Snd1	T	C	6: 28,888,288 (GRCm39)	Y908H	probably damaging	Het
Sorcs1	A	G	19: 50,132,562 (GRCm39)	V1132A	probably benign	Het
Speer3	A	G	5: 13,843,369 (GRCm39)	E92G	probably damaging	Het
Strada	T	C	11: 106,064,143 (GRCm39)	E58G	possibly damaging	Het
Tbx10	A	T	19: 4,047,312 (GRCm39)	K139*	probably null	Het
Tcf4	T	C	18: 69,766,651 (GRCm39)	Y25H	probably damaging	Het
Tmem108	C	T	9: 103,376,960 (GRCm39)	R163H	possibly damaging	Het
Tpcn2	A	G	7: 144,833,080 (GRCm39)	I46T	probably damaging	Het
Uox	C	T	3: 146,330,332 (GRCm39)	R163*	probably null	Het
Vipr2	T	A	12: 116,086,363 (GRCm39)	Y129*	probably null	Het
Vps37a	A	T	8: 40,993,749 (GRCm39)	Q248L	probably benign	Het
Wrap53	T	C	11: 69,468,511 (GRCm39)	I179V	probably benign	Het
Zan	G	A	5: 137,450,750 (GRCm39)	A1609V	unknown	Het
Zbtb17	G	A	4: 141,190,694 (GRCm39)	G171S	probably benign	Het
Zbtb5	G	A	4: 44,993,459 (GRCm39)	R642W	probably damaging	Het
Zfyve27	A	G	19: 42,171,096 (GRCm39)		probably null	Het
Zup1	T	C	10: 33,825,252 (GRCm39)	N77D	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
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'- ATGGAGTCTTCCCACTCAGG -3'
(R):5'- TATACTACTTCCCGAGACAATTACC -3'

Sequencing Primer
(F):5'- TTCTCAATGTACGAGAAGCCTC -3'
(R):5'- TTACCAAACAACAGTCTCAGAGTTAG -3'

Posted On

2018-04-27