1-1014276-G-A

Variant names:

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_005101.4(ISG15):c.296G>A(p.Arg99Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000985 in 1,613,436 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R99W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00022 ( 2 hom., cov: 34)

Exomes 𝑓: 0.000086 ( 2 hom. )

Consequence

ISG15
NM_005101.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:2

Conservation

PhyloP100: -4.87

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:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0148818195).

BP6

Variant 1-1014276-G-A is Benign according to our data. Variant chr1-1014276-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 568195.

BS2

High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ISG15	NM_005101.4 link	c.296G>A	p.Arg99Gln	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.296G>A	p.Arg99Gln	missense_variant	Exon 2 of 2		NM_005101.4	ENSP00000496832.1	P05161
ISG15	ENST00000624697.4 link	c.272G>A	p.Arg91Gln	missense_variant	Exon 3 of 3	3		ENSP00000485643.1	A0A096LPJ4
ISG15	ENST00000624652.1 link	c.272G>A	p.Arg91Gln	missense_variant	Exon 3 of 3	3		ENSP00000485313.1	A0A096LNZ9

Frequencies

GnomAD3 genomes

AF:

0.000217

AC:

AN:

152234

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00105

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00173

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00287

GnomAD2 exomes

AF:

0.0000599

AC:

AN:

250368

AF XY:

0.0000663

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000578

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000435

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000327

GnomAD4 exome

AF:

0.0000862

AC:

126

AN:

1461202

Hom.:

Cov.:

AF XY:

0.0000825

AC XY:

AN XY:

726914

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33476

American (AMR)

AF:

0.0000447

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26128

East Asian (EAS)

AF:

0.000403

AC:

AN:

39698

South Asian (SAS)

AF:

0.0000927

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52854

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000989

AC:

AN:

1111922

Other (OTH)

AF:

0.00147

AC:

AN:

60376

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.486

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000217

AC:

AN:

152234

Hom.:

Cov.:

AF XY:

0.0000672

AC XY:

AN XY:

74380

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41458

American (AMR)

AF:

0.00105

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00173

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10632

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68036

Other (OTH)

AF:

0.00287

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.503

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000658

Hom.:

Bravo

AF:

0.000121

ExAC

AF:

0.0000741

AC:

Asia WGS

AF:

0.00202

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Mendelian susceptibility to mycobacterial diseases due to complete ISG15 deficiency

Uncertain:2Benign:1

Jan 23, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Mar 30, 2021

Center for Genomics, Ann and Robert H. Lurie Children's Hospital of Chicago

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

ISG15 NM_005101.3 exon 2 p.Arg99Gln (c.296G>A): This variant has not been reported in the literature but is present in 0.06% (12/19930) of East Asian alleles in the Genome Aggregation Database (https://gnomad.broadinstitute.org/variant/1-949656-G-A?dataset=gnomad_r2_1). This variant is present in ClinVar (Variation ID:568195). This variant amino acid Glutamine (Gln) is present in >20 species including mammals and is not well conserved among evolutionarily distant species; this suggests that this variant may not impact the protein. Additional computational prediction tools do not suggest an impact. In summary, data on this variant is insufficient for disease classification. Therefore, the clinical significance of this variant is uncertain. -

Apr 22, 2021

Revvity Omics, Revvity

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not specified

Benign:1

May 25, 2022

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.074

BayesDel_addAF

Benign

-0.51

BayesDel_noAF

Benign

-0.64

CADD

Benign

0.0010

(source)

DANN

Benign

0.76

DEOGEN2

Benign

0.0067

T;T;T;T

Eigen

Benign

-2.3

Eigen_PC

Benign

-2.4

FATHMM_MKL

Benign

0.071

LIST_S2

Benign

0.44

T;T;.;T

M_CAP

Benign

0.061

MetaRNN

Benign

0.015

T;T;T;T

MetaSVM

Benign

-0.92

MutationAssessor

Benign

0.99

.;.;L;L

PhyloP100

-4.9

PrimateAI

Benign

0.19

PROVEAN

Benign

-0.090

.;.;N;.

REVEL

Benign

0.13

Sift

Benign

0.75

.;.;T;.

Sift4G

Benign

0.26

T;T;T;.

Polyphen

0.0020

.;.;B;B

Vest4

0.033

MutPred

0.40

.;.;Loss of MoRF binding (P = 0.0169);Loss of MoRF binding (P = 0.0169);

MVP

0.10

MPC

0.24

ClinPred

0.012

GERP RS

-9.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.14

gMVP

0.25

Mutation Taster

=98/2

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

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over