rs72660870

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_206937.2(LIG4):ā€‹c.2525C>Gā€‹(p.Ala842Gly) variant causes a missense change. The variant allele was found at a frequency of 0.00000274 in 1,461,874 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A842D) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 0.0000027 ( 0 hom. )

Consequence

LIG4
NM_206937.2 missense

Scores

1
3
15

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.24
Variant links:
Genes affected
LIG4 (HGNC:6601): (DNA ligase 4) The protein encoded by this gene is a DNA ligase that joins single-strand breaks in a double-stranded polydeoxynucleotide in an ATP-dependent reaction. This protein is essential for V(D)J recombination and DNA double-strand break (DSB) repair through nonhomologous end joining (NHEJ). This protein forms a complex with the X-ray repair cross complementing protein 4 (XRCC4), and further interacts with the DNA-dependent protein kinase (DNA-PK). Both XRCC4 and DNA-PK are known to be required for NHEJ. The crystal structure of the complex formed by this protein and XRCC4 has been resolved. Defects in this gene are the cause of LIG4 syndrome. Alternatively spliced transcript variants encoding the same protein have been observed. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.23604563).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
LIG4NM_206937.2 linkuse as main transcriptc.2525C>G p.Ala842Gly missense_variant 3/3 ENST00000442234.6 NP_996820.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
LIG4ENST00000442234.6 linkuse as main transcriptc.2525C>G p.Ala842Gly missense_variant 3/31 NM_206937.2 ENSP00000402030 P1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251444
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135892
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1461874
Hom.:
0
Cov.:
33
AF XY:
0.00000413
AC XY:
3
AN XY:
727230
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:
0.00000360
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.095
BayesDel_addAF
Uncertain
0.10
D
BayesDel_noAF
Benign
-0.090
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Benign
0.14
T;T;T;T;.
Eigen
Benign
0.076
Eigen_PC
Benign
0.22
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.68
.;.;.;T;T
M_CAP
Benign
0.028
D
MetaRNN
Benign
0.24
T;T;T;T;T
MetaSVM
Benign
-0.74
T
MutationAssessor
Benign
2.0
M;M;M;M;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.49
T
PROVEAN
Benign
-1.1
N;.;N;N;.
REVEL
Benign
0.25
Sift
Benign
0.13
T;.;T;T;.
Sift4G
Benign
0.28
T;T;T;T;T
Polyphen
0.0010
B;B;B;B;.
Vest4
0.19
MutPred
0.58
Gain of catalytic residue at R846 (P = 1e-04);Gain of catalytic residue at R846 (P = 1e-04);Gain of catalytic residue at R846 (P = 1e-04);Gain of catalytic residue at R846 (P = 1e-04);.;
MVP
0.60
MPC
0.049
ClinPred
0.40
T
GERP RS
5.8
Varity_R
0.45
gMVP
0.59

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.

Other links and lift over

dbSNP: rs72660870; hg19: chr13-108861092; API