chr19-48115929-G-A
Variant summary
Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong
The NM_000234.3(LIG1):c.2620C>T(p.Arg874Trp) variant causes a missense change. The variant allele was found at a frequency of 0.00000372 in 1,613,856 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000027 ( 0 hom. )
Consequence
LIG1
NM_000234.3 missense
NM_000234.3 missense
Scores
14
4
1
Clinical Significance
Conservation
PhyloP100: 6.15
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 Likely_pathogenic. Variant got 6 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
PP3
?
MetaRNN computational evidence supports a deleterious effect, 0.966
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
LIG1 | NM_000234.3 | c.2620C>T | p.Arg874Trp | missense_variant | 27/28 | ENST00000263274.12 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
LIG1 | ENST00000263274.12 | c.2620C>T | p.Arg874Trp | missense_variant | 27/28 | 1 | NM_000234.3 | P4 |
Frequencies
GnomAD3 genomes ? AF: 0.0000131 AC: 2AN: 152142Hom.: 0 Cov.: 32
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GnomAD4 exome AF: 0.00000274 AC: 4AN: 1461714Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2AN XY: 727154
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GnomAD4 genome ? AF: 0.0000131 AC: 2AN: 152142Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74314
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | Nov 02, 2019 | Not observed in large population cohorts (Lek et al., 2016); In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; Has not been previously published as pathogenic or benign to our knowledge - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
Cadd
Pathogenic
Dann
Pathogenic
DEOGEN2
Uncertain
D;.;.
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Pathogenic
D
LIST_S2
Pathogenic
D;D;D
M_CAP
Uncertain
D
MetaRNN
Pathogenic
D;D;D
MetaSVM
Uncertain
D
MutationAssessor
Pathogenic
H;.;.
MutationTaster
Benign
D;D;D
PrimateAI
Uncertain
T
PROVEAN
Pathogenic
D;D;D
REVEL
Pathogenic
Sift
Pathogenic
D;D;D
Sift4G
Pathogenic
D;D;D
Polyphen
D;D;.
Vest4
MutPred
Loss of disorder (P = 0.007);.;.;
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at