rs3730931

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBA1

The NM_000234.3(LIG1):​c.777-21A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.12 in 1,579,302 control chromosomes in the GnomAD database, including 12,325 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.15 ( 2023 hom., cov: 31)
Exomes 𝑓: 0.12 ( 10302 hom. )

Consequence

LIG1
NM_000234.3 intron

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -2.25
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.92).
BP6
Variant 19-48143984-T-C is Benign according to our data. Variant chr19-48143984-T-C is described in ClinVar as [Benign]. Clinvar id is 2628268.Status of the report is criteria_provided_single_submitter, 1 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.251 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
LIG1NM_000234.3 linkuse as main transcriptc.777-21A>G intron_variant ENST00000263274.12 NP_000225.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
LIG1ENST00000263274.12 linkuse as main transcriptc.777-21A>G intron_variant 1 NM_000234.3 ENSP00000263274 P4P18858-1

Frequencies

GnomAD3 genomes
AF:
0.151
AC:
22965
AN:
151866
Hom.:
2022
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.255
Gnomad AMI
AF:
0.0691
Gnomad AMR
AF:
0.131
Gnomad ASJ
AF:
0.0899
Gnomad EAS
AF:
0.120
Gnomad SAS
AF:
0.0815
Gnomad FIN
AF:
0.0862
Gnomad MID
AF:
0.0828
Gnomad NFE
AF:
0.115
Gnomad OTH
AF:
0.127
GnomAD3 exomes
AF:
0.119
AC:
29971
AN:
251408
Hom.:
2055
AF XY:
0.114
AC XY:
15467
AN XY:
135890
show subpopulations
Gnomad AFR exome
AF:
0.267
Gnomad AMR exome
AF:
0.134
Gnomad ASJ exome
AF:
0.0835
Gnomad EAS exome
AF:
0.127
Gnomad SAS exome
AF:
0.0831
Gnomad FIN exome
AF:
0.0887
Gnomad NFE exome
AF:
0.112
Gnomad OTH exome
AF:
0.108
GnomAD4 exome
AF:
0.117
AC:
166592
AN:
1427318
Hom.:
10302
Cov.:
28
AF XY:
0.115
AC XY:
81885
AN XY:
712344
show subpopulations
Gnomad4 AFR exome
AF:
0.264
Gnomad4 AMR exome
AF:
0.133
Gnomad4 ASJ exome
AF:
0.0855
Gnomad4 EAS exome
AF:
0.0991
Gnomad4 SAS exome
AF:
0.0824
Gnomad4 FIN exome
AF:
0.0908
Gnomad4 NFE exome
AF:
0.117
Gnomad4 OTH exome
AF:
0.120
GnomAD4 genome
AF:
0.151
AC:
22984
AN:
151984
Hom.:
2023
Cov.:
31
AF XY:
0.148
AC XY:
10979
AN XY:
74290
show subpopulations
Gnomad4 AFR
AF:
0.255
Gnomad4 AMR
AF:
0.131
Gnomad4 ASJ
AF:
0.0899
Gnomad4 EAS
AF:
0.120
Gnomad4 SAS
AF:
0.0812
Gnomad4 FIN
AF:
0.0862
Gnomad4 NFE
AF:
0.115
Gnomad4 OTH
AF:
0.127
Alfa
AF:
0.137
Hom.:
553
Bravo
AF:
0.160
Asia WGS
AF:
0.120
AC:
419
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Benign, criteria provided, single submitterclinical testingUnidad de Genómica Garrahan, Hospital de Pediatría GarrahanNov 12, 2023This variant is classified as Benign based on local population frequency. This variant was detected in 24% of patients studied by a panel of primary immunodeficiencies. Number of patients: 23. Only high quality variants are reported. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.92
CADD
Benign
0.12
DANN
Benign
0.34
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.10
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.

Other links and lift over

dbSNP: rs3730931; hg19: chr19-48647241; COSMIC: COSV54391159; COSMIC: COSV54391159; API