rs2232638

Variant names:

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_206937.2(LIG4):c.807C>T(p.Tyr269Tyr) variant causes a synonymous change. The variant allele was found at a frequency of 0.00557 in 1,613,170 control chromosomes in the GnomAD database, including 463 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.030 ( 240 hom., cov: 32)

Exomes 𝑓: 0.0030 ( 223 hom. )

Consequence

LIG4
NM_206937.2 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 5.43

Variant links:

Genes affected

LIG4 (HGNC:6601): (DNA ligase 4) The protein encoded by this gene is a DNA ligase that joins single-strand breaks in a double-stranded polydeoxynucleotide in an ATP-dependent reaction. This protein is essential for V(D)J recombination and DNA double-strand break (DSB) repair through nonhomologous end joining (NHEJ). This protein forms a complex with the X-ray repair cross complementing protein 4 (XRCC4), and further interacts with the DNA-dependent protein kinase (DNA-PK). Both XRCC4 and DNA-PK are known to be required for NHEJ. The crystal structure of the complex formed by this protein and XRCC4 has been resolved. Defects in this gene are the cause of LIG4 syndrome. Alternatively spliced transcript variants encoding the same protein have been observed. [provided by RefSeq, Jul 2008]

LIG4 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.49).

BP6

Variant 13-108210462-G-A is Benign according to our data. Variant chr13-108210462-G-A is described in ClinVar as [Benign]. Clinvar id is 310988.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.103 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LIG4	NM_206937.2 link	c.807C>T	p.Tyr269Tyr	synonymous_variant	Exon 3 of 3	ENST00000442234.6	NP_996820.1	P49917A0A024RE06

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LIG4	ENST00000442234.6 link	c.807C>T	p.Tyr269Tyr	synonymous_variant	Exon 3 of 3	1	NM_206937.2	ENSP00000402030.1		P49917

Frequencies

GnomAD3 genomes

AF:

0.0300

AC:

4567

AN:

152132

Hom.:

237

Cov.:

show subpopulations

Gnomad AFR

AF:

0.105

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0112

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.0127

Gnomad NFE

AF:

0.000206

Gnomad OTH

AF:

0.0220

GnomAD3 exomes

AF:

0.00766

AC:

1916

AN:

250260

Hom.:

AF XY:

0.00551

AC XY:

746

AN XY:

135396

show subpopulations

Gnomad AFR exome

AF:

0.106

Gnomad AMR exome

AF:

0.00469

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000163

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000150

Gnomad OTH exome

AF:

0.00312

GnomAD4 exome

AF:

0.00300

AC:

4380

AN:

1460920

Hom.:

223

Cov.:

AF XY:

0.00254

AC XY:

1843

AN XY:

726774

show subpopulations

Gnomad4 AFR exome

AF:

0.108

Gnomad4 AMR exome

AF:

0.00512

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000128

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000890

Gnomad4 OTH exome

AF:

0.00669

GnomAD4 genome

AF:

0.0302

AC:

4602

AN:

152250

Hom.:

240

Cov.:

AF XY:

0.0298

AC XY:

2219

AN XY:

74456

show subpopulations

Gnomad4 AFR

AF:

0.105

Gnomad4 AMR

AF:

0.0112

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000206

Gnomad4 OTH

AF:

0.0217

Alfa

AF:

0.0169

Hom.:

Bravo

AF:

0.0342

Asia WGS

AF:

0.00895

AC:

AN:

3478

EpiCase

AF:

0.000164

EpiControl

AF:

0.000237

ClinVar

Significance: Benign

Submissions summary: Benign:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

DNA ligase IV deficiency

Benign:3

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jul 07, 2023

KCCC/NGS Laboratory, Kuwait Cancer Control Center

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

not provided

Benign:2

Mar 03, 2015

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Severe combined immunodeficiency due to DCLRE1C deficiency

Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.49

CADD

Benign

4.6

DANN

Benign

0.47

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