rs3730855

Variant names:

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP6_Very_StrongBS2

The NM_000234.3(LIG1):c.71C>T(p.Ala24Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000808 in 1,613,994 control chromosomes in the GnomAD database, including 15 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Likely benign in UniProt.

Frequency

Genomes: 𝑓 0.0042 ( 10 hom., cov: 31)

Exomes 𝑓: 0.00045 ( 5 hom. )

Consequence

LIG1
NM_000234.3 missense

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 1.69

Variant links:

Genes affected

LIG1 (HGNC:6598): (DNA ligase 1) This gene encodes a member of the ATP-dependent DNA ligase protein family. The encoded protein functions in DNA replication, recombination, and the base excision repair process. Mutations in this gene that lead to DNA ligase I deficiency result in immunodeficiency and increased sensitivity to DNA-damaging agents. Disruption of this gene may also be associated with a variety of cancers. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2014]

LIG1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP6

Variant 19-48162298-G-A is Benign according to our data. Variant chr19-48162298-G-A is described in ClinVar as [Benign]. Clinvar id is 788030.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-48162298-G-A is described in Lovd as [Benign].

BS2

High Homozygotes in GnomAd4 at 10 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LIG1	NM_000234.3 link	c.71C>T	p.Ala24Val	missense_variant	Exon 3 of 28	ENST00000263274.12	NP_000225.1	P18858-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LIG1	ENST00000263274.12 link	c.71C>T	p.Ala24Val	missense_variant	Exon 3 of 28	1	NM_000234.3	ENSP00000263274.6		P18858-1

Frequencies

GnomAD3 genomes

AF:

0.00419

AC:

637

AN:

152070

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0145

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00151

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000208

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00335

GnomAD3 exomes

AF:

0.00128

AC:

322

AN:

250992

Hom.:

AF XY:

0.000884

AC XY:

120

AN XY:

135710

show subpopulations

Gnomad AFR exome

AF:

0.0173

Gnomad AMR exome

AF:

0.000867

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000980

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000441

Gnomad OTH exome

AF:

0.000489

GnomAD4 exome

AF:

0.000451

AC:

659

AN:

1461806

Hom.:

Cov.:

AF XY:

0.000399

AC XY:

290

AN XY:

727212

show subpopulations

Gnomad4 AFR exome

AF:

0.0157

Gnomad4 AMR exome

AF:

0.000894

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000580

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000135

Gnomad4 OTH exome

AF:

0.00116

GnomAD4 genome

AF:

0.00424

AC:

645

AN:

152188

Hom.:

Cov.:

AF XY:

0.00386

AC XY:

287

AN XY:

74414

show subpopulations

Gnomad4 AFR

AF:

0.0146

Gnomad4 AMR

AF:

0.00151

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000416

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.00331

Alfa

AF:

0.00248

Hom.:

Bravo

AF:

0.00485

ESP6500AA

AF:

0.0154

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.00172

AC:

209

Asia WGS

AF:

0.00115

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000178

ClinVar

Significance: Benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

LIG1-related disorder

Benign:1

Feb 26, 2024

PreventionGenetics, part of Exact Sciences

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.074

BayesDel_addAF

Benign

-0.58

BayesDel_noAF

Benign

-0.60

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.11

T;.;.;.;.;T

Eigen

Benign

-0.83

Eigen_PC

Benign

-0.78

FATHMM_MKL

Benign

0.057

LIST_S2

Benign

0.85

D;D;D;T;T;T

MetaRNN

Benign

0.0021

T;T;T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.69

N;.;N;.;.;.

PrimateAI

Benign

0.29

PROVEAN

Benign

0.0

N;N;.;.;.;.

REVEL

Benign

0.047

Sift

Benign

0.75

T;T;.;.;.;.

Sift4G

Benign

0.37

T;T;T;.;.;.

Polyphen

0.0080

B;B;.;.;.;.

Vest4

0.12

MVP

0.13

MPC

0.28

ClinPred

0.0038

GERP RS

2.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.027

gMVP

0.094

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.29

Details are displayed if max score is > 0.2

DS_DL_spliceai

0.29

Position offset: -36

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