rs140447219
Variant summary
Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong
The NM_005101.4(ISG15):c.491G>A(p.Arg164Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000162 in 1,600,870 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. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R164W) has been classified as Uncertain significance.
Frequency
Consequence
NM_005101.4 missense
Scores
Clinical Significance
Conservation
Publications
- Mendelian susceptibility to mycobacterial diseases due to complete ISG15 deficiencyInheritance: AR Classification: STRONG, SUPPORTIVE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Orphanet
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ACMG classification
Our verdict: Likely_benign. The variant received -2 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| ISG15 | ENST00000649529.1 | c.491G>A | p.Arg164Gln | missense_variant | Exon 2 of 2 | NM_005101.4 | ENSP00000496832.1 | |||
| ISG15 | ENST00000624697.4 | c.467G>A | p.Arg156Gln | missense_variant | Exon 3 of 3 | 3 | ENSP00000485643.1 | |||
| ISG15 | ENST00000624652.1 | c.*36G>A | downstream_gene_variant | 3 | ENSP00000485313.1 |
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152220Hom.: 0 Cov.: 34 show subpopulations
GnomAD2 exomes AF: 0.0000373 AC: 9AN: 241544 AF XY: 0.0000379 show subpopulations
GnomAD4 exome AF: 0.0000166 AC: 24AN: 1448650Hom.: 0 Cov.: 38 AF XY: 0.0000139 AC XY: 10AN XY: 718588 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152220Hom.: 0 Cov.: 34 AF XY: 0.0000269 AC XY: 2AN XY: 74372 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Mendelian susceptibility to mycobacterial diseases due to complete ISG15 deficiency Uncertain:1
This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 164 of the ISG15 protein (p.Arg164Gln). This variant is present in population databases (rs140447219, gnomAD 0.007%). This variant has not been reported in the literature in individuals affected with ISG15-related conditions. ClinVar contains an entry for this variant (Variation ID: 1017805). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Not Available"; PolyPhen-2: "Benign"; Align-GVGD: "Not Available". The glutamine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at