Mutagenetix > Incidental Mutation

Incidental Mutation 'R6844:Top2b'

534684

Institutional Source

Beutler Lab

Gene Symbol

Top2b

Ensembl Gene

ENSMUSG00000017485

Gene Name

topoisomerase (DNA) II beta

Synonyms

Top-2, D230016L12Rik

MMRRC Submission

044950-MU

Accession Numbers

Essential gene?

Probably essential (E-score: 0.929) question?

Stock #

R6844 (G1)

Quality Score

225.009

Status

Validated

Chromosome

Chromosomal Location

6038976-6104585 bp(-) (GRCm39)

Type of Mutation

missense

DNA Base Change (assembly)

A to T at 16429383 bp (GRCm38)

Zygosity

Heterozygous

Amino Acid Change

Asparagine to Isoleucine at position 1541 (N1541I)

Ref Sequence

ENSEMBL: ENSMUSP00000017629 (fasta)

Gene Model

predicted gene model for transcript(s): [ENSMUST00000017629] [ENSMUST00000063750] [ENSMUST00000161693] [ENSMUST00000225921]

AlphaFold

Q64511

Predicted Effect

possibly damaging
Transcript: ENSMUST00000017629
AA Change: N1541I

PolyPhen 2 Score 0.937 (Sensitivity: 0.80; Specificity: 0.94)

SMART Domains

Protein: ENSMUSP00000017629
Gene: ENSMUSG00000017485
AA Change: N1541I

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

probably benign
Transcript: ENSMUST00000063750

SMART Domains

Protein: ENSMUSP00000067694
Gene: ENSMUSG00000017491

Domain	Start	End	E-Value	Type
low complexity region	52	75	N/A	INTRINSIC
ZnF_C4	78	149	3.77e-40	SMART
HOLI	223	381	1.72e-34	SMART
low complexity region	428	445	N/A	INTRINSIC

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

Predicted Effect

probably benign
Transcript: ENSMUST00000225921

Meta Mutation Damage Score

0.1268

Coding Region Coverage

1x: 100.0%
3x: 99.9%
10x: 99.5%
20x: 98.2%

Validation Efficiency

92% (36/39)

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: 40 list
Gene	Ref	Var	Chr/Loc	Mutation	Predicted Effect	Zygosity
Arhgap18	G	A	10: 26,648,682 (GRCm39)	A35T	probably benign	Het
Arhgap21	A	G	2: 20,886,116 (GRCm39)	S354P	probably benign	Het
Casq2	A	T	3: 102,017,578 (GRCm39)	H86L	possibly damaging	Het
Ccdc188	G	A	16: 18,036,074 (GRCm39)	G83E	probably damaging	Het
Cd22	G	T	7: 30,572,856 (GRCm39)		probably null	Het
Cyp2b13	T	A	7: 25,781,122 (GRCm39)	I178N	probably damaging	Het
Cyp4a31	T	A	4: 115,420,989 (GRCm39)	C26S	probably null	Het
Eif3h	T	C	15: 51,728,729 (GRCm39)	D42G	possibly damaging	Het
Elovl4	T	A	9: 83,672,164 (GRCm39)	I52L	probably benign	Het
Fgfbp3	C	A	19: 36,896,280 (GRCm39)	A113S	possibly damaging	Het
Fsip2	A	T	2: 82,813,969 (GRCm39)	K3429N	possibly damaging	Het
Gemin5	T	C	11: 58,054,730 (GRCm39)	D224G	probably benign	Het
Gm3415	T	C	5: 146,494,811 (GRCm39)	I158T	probably benign	Het
Gpr22	C	A	12: 31,759,951 (GRCm39)	R20L	probably benign	Het
Htr1a	A	G	13: 105,581,455 (GRCm39)	K232E	possibly damaging	Het
Itgax	T	A	7: 127,747,106 (GRCm39)		probably null	Het
Jag2	T	C	12: 112,880,334 (GRCm39)	Y310C	probably damaging	Het
Lce1j	A	G	3: 92,696,656 (GRCm39)	S41P	unknown	Het
Mllt10	A	G	2: 18,164,294 (GRCm39)	I197V	probably benign	Het
Muc5ac	C	T	7: 141,363,481 (GRCm39)		probably benign	Het
Mybpc1	T	A	10: 88,372,243 (GRCm39)	I796F	possibly damaging	Het
Nr2c1	T	A	10: 94,007,029 (GRCm39)	L289*	probably null	Het
Omp	T	A	7: 97,794,283 (GRCm39)	M115L	probably benign	Het
Pdcd1	C	T	1: 93,967,106 (GRCm39)	R264H	probably benign	Het
Plxna2	T	C	1: 194,476,136 (GRCm39)	F1119L	probably benign	Het
Ralyl	A	G	3: 13,841,938 (GRCm39)	T25A	probably damaging	Het
Rapgef4	A	G	2: 72,064,970 (GRCm39)	T656A	probably damaging	Het
Ripor3	C	T	2: 167,835,253 (GRCm39)		probably null	Het
Samd8	T	C	14: 21,825,205 (GRCm39)	S54P	probably damaging	Het
Serpinb9g	A	T	13: 33,670,616 (GRCm39)	I35F	probably damaging	Het
Shisa8	T	C	15: 82,096,310 (GRCm39)	S102G	probably damaging	Het
Slc4a1ap	T	A	5: 31,684,822 (GRCm39)	S153T	probably damaging	Het
Slc4a4	T	A	5: 89,376,831 (GRCm39)	D1028E	probably damaging	Het
Slc6a13	T	A	6: 121,302,012 (GRCm39)	I198N	probably damaging	Het
Sst	C	T	16: 23,708,592 (GRCm39)	D80N	probably benign	Het
Synj2	A	G	17: 6,026,081 (GRCm39)	K47E	probably damaging	Het
Tal1	C	T	4: 114,920,464 (GRCm39)	P46L	probably benign	Het
Vps13b	T	A	15: 35,877,736 (GRCm39)	N2903K	probably benign	Het
Zfp949	A	G	9: 88,451,464 (GRCm39)	T345A	possibly damaging	Het
Zmat3	A	G	3: 32,395,644 (GRCm39)	Y288H	probably 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
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
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'- ATGCTGTCCAAGTCTCTGTATGTC -3'
(R):5'- TCTGACTAAGTTGACTTATGGTGCTC -3'

Sequencing Primer
(F):5'- CATTTATAGTATGCAGGTAGGGTTGC -3'
(R):5'- GGTGCTCTCTTTGCATAAGAATTAG -3'

Posted On

2018-09-12