rs3730855

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 same amino acid change has been previously reported as Likely benignin UniProt.

Frequency

Genomes: 𝑓 0.0042 ( 10 hom., cov: 31)
Exomes 𝑓: 0.00045 ( 5 hom. )

Consequence

LIG1
NM_000234.3 missense

Scores

1
17

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]

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/exons MANE Protein UniProt
LIG1NM_000234.3 linkuse as main transcriptc.71C>T p.Ala24Val missense_variant 3/28 ENST00000263274.12 NP_000225.1 P18858-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
LIG1ENST00000263274.12 linkuse as main transcriptc.71C>T p.Ala24Val missense_variant 3/281 NM_000234.3 ENSP00000263274.6 P18858-1

Frequencies

GnomAD3 genomes
AF:
0.00419
AC:
637
AN:
152070
Hom.:
10
Cov.:
31
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.:
3
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.:
5
Cov.:
31
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.:
10
Cov.:
31
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.:
2
Bravo
AF:
0.00485
ESP6500AA
AF:
0.0154
AC:
68
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.00172
AC:
209
Asia WGS
AF:
0.00115
AC:
4
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
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 29, 2024- -
LIG1-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesFeb 26, 2024This 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
T
BayesDel_noAF
Benign
-0.60
CADD
Benign
17
DANN
Uncertain
0.99
DEOGEN2
Benign
0.11
T;.;.;.;.;T
Eigen
Benign
-0.83
Eigen_PC
Benign
-0.78
FATHMM_MKL
Benign
0.057
N
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
T
MutationAssessor
Benign
0.69
N;.;N;.;.;.
PrimateAI
Benign
0.29
T
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
T
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.

Other links and lift over

dbSNP: rs3730855; hg19: chr19-48665555; COSMIC: COSV105033938; API