14-103698914-C-T

Position:

chr14-103698914-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_005432.4(XRCC3):c.925G>A(p.Gly309Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000127 in 1,600,418 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

XRCC3
NM_005432.4 missense

Scores

Clinical Significance

Benign criteria provided, single submitter U:1B:1

Conservation

PhyloP100: -0.206

Variant links:

Genes affected

XRCC3 (HGNC:12830): (X-ray repair cross complementing 3) 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 functionally complements Chinese hamster irs1SF, a repair-deficient mutant that exhibits hypersensitivity to a number of different DNA-damaging agents and is chromosomally unstable. A rare microsatellite polymorphism in this gene is associated with cancer in patients of varying radiosensitivity. Alternatively spliced transcript variants encoding the same protein have been identified. [provided by RefSeq, Jul 2008]

XRCC3 links:

KLC1 (HGNC:6387): (kinesin light chain 1) Conventional kinesin is a tetrameric molecule composed of two heavy chains and two light chains, and transports various cargos along microtubules toward their plus ends. The heavy chains provide the motor activity, while the light chains bind to various cargos. This gene encodes a member of the kinesin light chain family. It associates with kinesin heavy chain through an N-terminal domain, and six tetratricopeptide repeat (TPR) motifs are thought to be involved in binding of cargos such as vesicles, mitochondria, and the Golgi complex. Thus, kinesin light chains function as adapter molecules and not motors per se. Although previously named "kinesin 2", this gene is not a member of the kinesin-2 / kinesin heavy chain subfamily of kinesin motor proteins. Extensive alternative splicing produces isoforms with different C-termini that are proposed to bind to different cargos; however, the full-length nature and/or biological validity of most of these variants have not been determined. [provided by RefSeq, Jul 2008]

KLC1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.011938393).

BP6

Variant 14-103698914-C-T is Benign according to our data. Variant chr14-103698914-C-T is described in ClinVar as [Benign]. Clinvar id is 1050194.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
XRCC3	NM_005432.4 linkuse as main transcript	c.925G>A	p.Gly309Ser	missense_variant	10/10	ENST00000555055.6	NP_005423.1
KLC1	NM_001394837.1 linkuse as main transcript	c.1849-1741C>T		intron_variant		ENST00000334553.11	NP_001381766.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
XRCC3	ENST00000555055.6 linkuse as main transcript	c.925G>A	p.Gly309Ser	missense_variant	10/10	1	NM_005432.4	ENSP00000452598	P1
KLC1	ENST00000334553.11 linkuse as main transcript	c.1849-1741C>T		intron_variant		5	NM_001394837.1	ENSP00000334523		Q07866-9

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152168

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000386

Gnomad SAS

AF:

0.00124

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000284

AC:

AN:

222118

Hom.:

AF XY:

0.000364

AC XY:

AN XY:

120878

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000180

Gnomad SAS exome

AF:

0.00210

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000102

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000133

AC:

193

AN:

1448132

Hom.:

Cov.:

AF XY:

0.000195

AC XY:

140

AN XY:

719168

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000102

Gnomad4 SAS exome

AF:

0.00202

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000904

Gnomad4 OTH exome

AF:

0.000150

GnomAD4 genome

AF:

0.0000722

AC:

AN:

152286

Hom.:

Cov.:

AF XY:

0.0000806

AC XY:

AN XY:

74458

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000387

Gnomad4 SAS

AF:

0.00124

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.0000680

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.000322

AC:

Asia WGS

AF:

0.000866

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, no assertion criteria provided

clinical testing

Department of Pathology and Laboratory Medicine, Sinai Health System

The XRCC3 p.Gly309Ser variant was not identified in the literature nor was it identified in ClinVar. The variant was identified in dbSNP (ID: rs532124840) and in control databases in 65 of 253456 chromosomes at a frequency of 0.0002565 (Genome Aggregation Database March 6, 2019, v2.1.1). The variant was observed in the following populations: South Asian in 59 of 28102 chromosomes (freq: 0.002099), East Asian in 3 of 18218 chromosomes (freq: 0.000165), Other in 1 of 6638 chromosomes (freq: 0.000151) and European (non-Finnish) in 2 of 113534 chromosomes (freq: 0.000018), but was not observed in the African, Latino, Ashkenazi Jewish, or European (Finnish) populations. The p.Gly309 residue is not conserved in mammals and computational analyses (PolyPhen-2, SIFT, AlignGVGD, BLOSUM, MutationTaster) do not suggest a high likelihood of impact to the protein; however, this information is not predictive enough to rule out pathogenicity. The variant occurs outside of the splicing consensus sequence and 2 of 4 in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) predict a greater than 10% difference in splicing; this is not very predictive of pathogenicity. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time. This variant is classified as a variant of uncertain significance. -

Ovarian cancer

Benign:1

Benign, criteria provided, single submitter

clinical testing

Laboratory of Molecular Epidemiology of Birth Defects, West China Second University Hospital, Sichuan University

Jan 01, 2022

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.092

BayesDel_addAF

Benign

-0.57

BayesDel_noAF

Benign

-0.60

CADD

Benign

6.5

DANN

Benign

0.70

DEOGEN2

Benign

0.048

T;T;T;T;T

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.31

LIST_S2

Benign

0.53

.;.;.;T;T

M_CAP

Benign

0.021

MetaRNN

Benign

0.012

T;T;T;T;T

MetaSVM

Benign

-0.97

MutationAssessor

Benign

0.80

N;N;N;N;.

MutationTaster

Benign

1.0

N;N;N;N;N;N;N;N;N;N;N;N

PrimateAI

Benign

0.45

PROVEAN

Benign

-0.93

N;N;N;N;N

REVEL

Benign

0.062

Sift

Benign

0.76

T;T;T;T;T

Sift4G

Benign

0.59

T;T;T;T;T

Polyphen

0.059

B;B;B;B;.

Vest4

0.17

MutPred

0.64

Gain of disorder (P = 0.0493);Gain of disorder (P = 0.0493);Gain of disorder (P = 0.0493);Gain of disorder (P = 0.0493);.;

MVP

0.48

MPC

0.19

ClinPred

0.015

GERP RS

-0.90

RBP_binding_hub_radar

1.1

RBP_regulation_power_radar

2.3

Varity_R

0.057

gMVP

0.58

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over