17-34983072-C-G

Variant names:

• chr17-34983072-C-G
• rs144307769
• NM_013975.4:c.67C>G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_013975.4(LIG3):​c.67C>G​(p.Leu23Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,614 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: LIG3 NM_013975.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.202

Genes affected

LIG3 (HGNC:6600): (DNA ligase 3) This gene is a member of the DNA ligase family. Each member of this family encodes a protein that catalyzes the joining of DNA ends but they each have a distinct role in DNA metabolism. The protein encoded by this gene is involved in excision repair and is located in both the mitochondria and nucleus, with translation initiation from the upstream start codon allowing for transport to the mitochondria and translation initiation from a downstream start codon allowing for transport to the nucleus. Additionally, alternate transcriptional splice variants, encoding different isoforms, have been characterized. [provided by RefSeq, Jul 2008]

ACMG classification

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=0.09416735).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LIG3	NM_013975.4	c.67C>G	p.Leu23Val	missense_variant	Exon 2 of 20	ENST00000378526.9	NP_039269.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LIG3	ENST00000378526.9	c.67C>G	p.Leu23Val	missense_variant	Exon 2 of 20	1	NM_013975.4	ENSP00000367787.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000398 AC: 1 AN: 251192 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 135766

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: 0.00000880

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461614 Hom.: 0 Cov.: 34 AF XY: 0.00000275 AC XY: 2 AN XY: 727102

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: 0.00000180

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ExAC AF: 0.00000824 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.071
BayesDel_addAF	Benign	-0.10	T
BayesDel_noAF	Benign	-0.39
CADD	Benign	8.7
DANN	Uncertain	0.98
DEOGEN2	Benign	0.18	T;T;.
Eigen	Benign	-0.57
Eigen_PC	Benign	-0.54
FATHMM_MKL	Benign	0.089	N
LIST_S2	Benign	0.70	T;T;T
M_CAP	Benign	0.053	D
MetaRNN	Benign	0.094	T;T;T
MetaSVM	Benign	-0.95	T
MutationAssessor	Uncertain	2.3	M;.;M
PrimateAI	Benign	0.33	T
PROVEAN	Benign	-0.19	N;.;N
REVEL	Benign	0.12
Sift	Uncertain	0.022	D;.;D
Sift4G	Pathogenic	0.0	D;D;D
Polyphen		0.0010	B;.;.
Vest4		0.14
MutPred		0.23		Loss of helix (P = 0.0237);.;Loss of helix (P = 0.0237);
MVP		0.48
MPC		0.27
ClinPred		0.12	T
GERP RS		4.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.057
gMVP		0.26

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.040		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

Other links and lift over

dbSNP: rs144307769; hg19: chr17-33310091;