chr7-152649202-T-C

Variant names:

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_005431.2(XRCC2):c.283A>G(p.Ile95Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000397 in 1,613,736 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I95L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00015 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00042 ( 0 hom. )

Consequence

XRCC2
NM_005431.2 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:4

Conservation

PhyloP100: 0.0470

Publications

10 publications found

Variant links:

Genes affected

XRCC2 (HGNC:12829): (X-ray repair cross complementing 2) This gene encodes a member of the RecA/Rad51-related protein family that participates in homologous recombination to maintain chromosome stability and repair DNA damage. This gene is involved in the repair of DNA double-strand breaks by homologous recombination and it functionally complements Chinese hamster irs1, a repair-deficient mutant that exhibits hypersensitivity to a number of different DNA-damaging agents. [provided by RefSeq, Jul 2008]

XRCC2 Gene-Disease associations (from GenCC):

Fanconi anemia complementation group U
Inheritance: AR Classification: MODERATE, LIMITED Submitted by: ClinGen, Ambry Genetics, Labcorp Genetics (formerly Invitae)
male infertility with azoospermia or oligozoospermia due to single gene mutation
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Fanconi anemia
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
premature ovarian failure 17
Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)
spermatogenic failure 50
Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)
breast cancer
Inheritance: AD Classification: NO_KNOWN Submitted by: Ambry Genetics
hereditary breast carcinoma
Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
familial ovarian cancer
Inheritance: Unknown Classification: NO_KNOWN Submitted by: ClinGen

XRCC2 links:

ENSG00000298894 (HGNC:):

ENSG00000298894 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0667395).

BP6

Variant 7-152649202-T-C is Benign according to our data. Variant chr7-152649202-T-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 127954.

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.000151 (23/152214) while in subpopulation NFE AF = 0.000309 (21/68028). AF 95% confidence interval is 0.000207. There are 0 homozygotes in GnomAd4. There are 14 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005431.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	XRCC2	NM_005431.2	MANE Select	c.283A>G	p.Ile95Val	missense	Exon 3 of 3	NP_005422.1	O43543

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
XRCC2	ENST00000359321.2	TSL:1 MANE Select	c.283A>G	p.Ile95Val	missense	Exon 3 of 3	ENSP00000352271.1	O43543
XRCC2	ENST00000495707.1	TSL:1	n.305A>G		non_coding_transcript_exon	Exon 3 of 3
XRCC2	ENST00000698506.1		c.115A>G	p.Ile39Val	missense	Exon 2 of 2	ENSP00000513758.1	A0A8V8TMB7

Frequencies

GnomAD3 genomes

AF:

0.000151

AC:

AN:

152214

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000309

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000243

AC:

AN:

250976

AF XY:

0.000251

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000519

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000422

AC:

617

AN:

1461522

Hom.:

Cov.:

AF XY:

0.000432

AC XY:

314

AN XY:

727058

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44714

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86238

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53100

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000541

AC:

602

AN:

1112000

Other (OTH)

AF:

0.000232

AC:

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.478

Heterozygous variant carriers

107

143

179

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

120

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000151

AC:

AN:

152214

Hom.:

Cov.:

AF XY:

0.000188

AC XY:

AN XY:

74376

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41460

American (AMR)

AF:

0.0000655

AC:

AN:

15270

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5206

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000309

AC:

AN:

68028

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.473

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000395

Hom.:

Bravo

AF:

0.000193

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000778

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000329

AC:

EpiCase

AF:

0.000218

EpiControl

AF:

0.000771

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Hereditary cancer-predisposing syndrome (2)

not provided (2)

Fanconi anemia complementation group U (1)

Fanconi anemia complementation group U;C5436888:Spermatogenic failure 50;C5436889:Premature ovarian failure 17 (1)

not specified (1)

XRCC2-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.065

BayesDel_addAF

Benign

-0.52

BayesDel_noAF

Benign

-0.65

CADD

Benign

0.019

(source)

DANN

Benign

0.26

DEOGEN2

Benign

0.12

Eigen

Benign

-1.8

Eigen_PC

Benign

-1.8

FATHMM_MKL

Benign

0.081

LIST_S2

Benign

0.58

M_CAP

Benign

0.0054

MetaRNN

Benign

0.067

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.73

PhyloP100

0.047

PrimateAI

Benign

0.24

PROVEAN

Benign

-0.52

REVEL

Benign

0.12

Sift

Benign

0.36

Sift4G

Benign

0.37

Polyphen

0.013

Vest4

0.084

MVP

0.072

MPC

0.035

ClinPred

0.046

GERP RS

-5.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.015

gMVP

0.22

Mutation Taster

=96/4

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over