rs55950593

Positions:

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 0P and 0B.

The NM_000234.3(LIG1):c.2014C>T(p.Arg672Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000264 in 1,613,528 control chromosomes in the GnomAD database, including 2 homozygotes. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00028 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00026 ( 1 hom. )

Consequence

LIG1
NM_000234.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 3.50

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:

(HGNC:):

links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LIG1	NM_000234.3 linkuse as main transcript	c.2014C>T	p.Arg672Cys	missense_variant	22/28	ENST00000263274.12	NP_000225.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
LIG1	ENST00000263274.12 linkuse as main transcript	c.2014C>T	p.Arg672Cys	missense_variant	22/28	1	NM_000234.3	ENSP00000263274	P4	P18858-1
	ENST00000596563.5 linkuse as main transcript	n.176+2050G>A		intron_variant, non_coding_transcript_variant		2

Frequencies

GnomAD3 genomes

AF:

0.000276

AC:

AN:

152160

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000397

Gnomad OTH

AF:

0.00144

GnomAD3 exomes

AF:

0.000184

AC:

AN:

250406

Hom.:

AF XY:

0.000192

AC XY:

AN XY:

135554

show subpopulations

Gnomad AFR exome

AF:

0.0000622

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000980

Gnomad FIN exome

AF:

0.0000474

Gnomad NFE exome

AF:

0.000353

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000263

AC:

384

AN:

1461250

Hom.:

Cov.:

AF XY:

0.000249

AC XY:

181

AN XY:

726938

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.000116

Gnomad4 FIN exome

AF:

0.0000189

Gnomad4 NFE exome

AF:

0.000314

Gnomad4 OTH exome

AF:

0.000248

GnomAD4 genome

AF:

0.000276

AC:

AN:

152278

Hom.:

Cov.:

AF XY:

0.000269

AC XY:

AN XY:

74450

show subpopulations

Gnomad4 AFR

AF:

0.000241

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000397

Gnomad4 OTH

AF:

0.00142

Alfa

AF:

0.000310

Hom.:

Bravo

AF:

0.000234

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000698

AC:

ExAC

AF:

0.000198

AC:

EpiCase

AF:

0.000491

EpiControl

AF:

0.000474

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Nov 25, 2022	Observed in the apparent homozygous state in a patient with likely primary immunodeficiency, but detailed clinical information was not provided and this individual was also reported to have a potentially causative variant in another gene (Platt et al., 2021); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 32888943) -
Uncertain significance, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Aug 21, 2022	This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 672 of the LIG1 protein (p.Arg672Cys). This variant is present in population databases (rs55950593, gnomAD 0.03%). This missense change has been observed in individual(s) with primary immunodeficiency (PMID: 32888943). ClinVar contains an entry for this variant (Variation ID: 1521453). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C15"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Immunodeficiency 96

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Apr 08, 2022

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Uncertain

0.019

BayesDel_noAF

Uncertain

0.10

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.75

D;.;.;.

Eigen

Pathogenic

0.70

Eigen_PC

Uncertain

0.60

FATHMM_MKL

Uncertain

0.89

LIST_S2

Pathogenic

0.98

D;D;D;D

M_CAP

Uncertain

0.097

MetaRNN

Uncertain

0.51

D;D;D;D

MetaSVM

Uncertain

0.48

MutationAssessor

Pathogenic

3.6

H;.;.;H

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.60

PROVEAN

Pathogenic

-5.9

D;D;D;.

REVEL

Uncertain

0.60

Sift

Uncertain

0.0020

D;D;D;.

Sift4G

Uncertain

0.010

D;D;D;D

Polyphen

1.0

D;D;.;.

Vest4

0.55

MVP

0.85

MPC

1.1

ClinPred

0.91

GERP RS

5.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.78

gMVP

0.37

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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