Variant 19-48115899-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_000234.3(LIG1):c.2650C>T(p.Pro884Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000958 in 1,461,686 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P884L) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

LIG1
NM_000234.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.21

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:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
LIG1	NM_000234.3 linkuse as main transcript	c.2650C>T	p.Pro884Ser	missense_variant	27/28	ENST00000263274.12

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
LIG1	ENST00000263274.12 linkuse as main transcript	c.2650C>T	p.Pro884Ser	missense_variant	27/28	1	NM_000234.3	P4	P18858-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000958

AC:

AN:

1461686

Hom.:

Cov.:

AF XY:

0.00000825

AC XY:

AN XY:

727140

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000117

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000532

Hom.:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

May 28, 2024

The c.2650C>T (p.P884S) alteration is located in exon 27 (coding exon 26) of the LIG1 gene. This alteration results from a C to T substitution at nucleotide position 2650, causing the proline (P) at amino acid position 884 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.25

BayesDel_addAF

Uncertain

0.068

BayesDel_noAF

Benign

-0.14

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.71

D;.;.

Eigen

Uncertain

0.23

Eigen_PC

Benign

0.21

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.96

D;D;D

M_CAP

Benign

0.013

MetaRNN

Uncertain

0.54

D;D;D

MetaSVM

Benign

-0.63

MutationAssessor

Uncertain

2.0

M;.;.

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Benign

0.40

PROVEAN

Pathogenic

-4.7

D;D;D

REVEL

Benign

0.25

Sift

Benign

0.12

T;T;T

Sift4G

Benign

0.18

T;T;T

Polyphen

0.88

P;P;.

Vest4

0.52

MutPred

0.43

Loss of helix (P = 0.0237);.;.;

MVP

0.68

MPC

0.30

ClinPred

0.97

GERP RS

3.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.6

Varity_R

0.69

gMVP

0.63

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