Genetic Variant NM_005101.4:c.237C>G (chr1-1014217-C-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_005101.4(ISG15):c.237C>G(p.Asp79Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,184 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. D79D) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 35)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

ISG15
NM_005101.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -3.32

Publications

2 publications found

Variant links:

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]

ISG15 Gene-Disease associations (from GenCC):

Mendelian susceptibility to mycobacterial diseases due to complete ISG15 deficiency
Inheritance: AR Classification: STRONG, SUPPORTIVE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Orphanet

ISG15 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.042057842).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ISG15	NM_005101.4 link	c.237C>G	p.Asp79Glu	missense_variant	Exon 2 of 2	ENST00000649529.1	NP_005092.1	P05161

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ISG15	ENST00000649529.1 link	c.237C>G	p.Asp79Glu	missense_variant	Exon 2 of 2		NM_005101.4	ENSP00000496832.1	P05161
ISG15	ENST00000624697.4 link	c.213C>G	p.Asp71Glu	missense_variant	Exon 3 of 3	3		ENSP00000485643.1	A0A096LPJ4
ISG15	ENST00000624652.1 link	c.213C>G	p.Asp71Glu	missense_variant	Exon 3 of 3	3		ENSP00000485313.1	A0A096LNZ9

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000400

AC:

AN:

250062

AF XY:

0.00000738

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461184

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726898

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33476

American (AMR)

AF:

0.0000224

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52800

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111954

Other (OTH)

AF:

0.00

AC:

AN:

60380

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.73

CADD

Benign

0.0050

(source)

DANN

Benign

0.44

DEOGEN2

Benign

0.0096

T;T;T;T

Eigen

Benign

-2.2

Eigen_PC

Benign

-2.4

FATHMM_MKL

Benign

0.13

LIST_S2

Benign

0.44

T;T;.;T

M_CAP

Benign

0.0030

MetaRNN

Benign

0.042

T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.9

.;.;L;L

PhyloP100

-3.3

PrimateAI

Benign

0.25

PROVEAN

Benign

-0.34

.;.;N;.

REVEL

Benign

0.031

Sift

Benign

0.59

.;.;T;.

Sift4G

Benign

0.54

T;T;T;.

Polyphen

0.052

.;.;B;B

Vest4

0.049

MutPred

0.44

.;.;Gain of sheet (P = 0.0266);Gain of sheet (P = 0.0266);

MVP

0.014

MPC

0.19

ClinPred

0.043

GERP RS

-8.0

Varity_R

0.23

gMVP

0.14

Mutation Taster

=99/1

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over