NM_005101.4:c.339dupG

Variant names:

• chr1-1014316-C-CG
• rs672601345
• NM_005101.4:c.339dupG

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PVS1_Strong PM2 PP5

The NM_005101.4(ISG15):​c.339dupG​(p.Leu114AlafsTer74) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,354 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency:
  • Genomes: not found (cov: 35)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: ISG15 NM_005101.4 frameshift
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: -1.46

Genes affected

ISG15 (HGNC:4053): (ISG15 ubiquitin like modifier) The protein encoded by this gene is a ubiquitin-like protein that is conjugated to intracellular target proteins upon activation by interferon-alpha and interferon-beta. Several functions have been ascribed to the encoded protein, including chemotactic activity towards neutrophils, direction of ligated target proteins to intermediate filaments, cell-to-cell signaling, and antiviral activity during viral infections. While conjugates of this protein have been found to be noncovalently attached to intermediate filaments, this protein is sometimes secreted. [provided by RefSeq, Dec 2012]

ACMG classification

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

• PVS1: Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.317 CDS is truncated, and there are 2 pathogenic variants in the truncated region.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 1-1014316-C-CG is Pathogenic according to our data. Variant chr1-1014316-C-CG is described in ClinVar as [Pathogenic]. Clinvar id is 161455.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ISG15	NM_005101.4	c.339dupG	p.Leu114AlafsTer74	frameshift_variant	Exon 2 of 2	ENST00000649529.1	NP_005092.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ISG15	ENST00000649529.1	c.339dupG	p.Leu114AlafsTer74	frameshift_variant	Exon 2 of 2		NM_005101.4	ENSP00000496832.1
ISG15	ENST00000624697.4	c.315dupG	p.Leu106AlafsTer74	frameshift_variant	Exon 3 of 3	3		ENSP00000485643.1
ISG15	ENST00000624652.1	c.315dupG	p.Leu106AlafsTer39	frameshift_variant	Exon 3 of 3	3		ENSP00000485313.1

Frequencies

GnomAD3 genomes Cov.: 35

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461354 Hom.: 0 Cov.: 38 AF XY: 0.00 AC XY: 0 AN XY: 726978

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: 0.00

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome Cov.: 35

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Mendelian susceptibility to mycobacterial diseases due to complete ISG15 deficiency Pathogenic:1

Jan 01, 2015

OMIM

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

- -

Computational scores

Source: dbNSFP v4.3

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs672601345; hg19: chr1-949696;