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GeneBe

22-18160167-T-G

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_StrongBP6_Moderate

The NM_017414.4(USP18):c.158-5T>G variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0006 in 1,613,882 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0033 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00032 ( 3 hom. )

Consequence

USP18
NM_017414.4 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.0009933
2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.76
Variant links:
Genes affected
USP18 (HGNC:12616): (ubiquitin specific peptidase 18) The protein encoded by this gene belongs to the ubiquitin-specific proteases (UBP) family of enzymes that cleave ubiquitin from ubiquitinated protein substrates. It is highly expressed in liver and thymus, and is localized to the nucleus. This protein efficiently cleaves only ISG15 (a ubiquitin-like protein) fusions, and deletion of this gene in mice results in a massive increase of ISG15 conjugates in tissues, indicating that this protein is a major ISG15-specific protease. Mice lacking this gene are also hypersensitive to interferon, suggesting a function of this protein in downregulating interferon responses, independent of its isopeptidase activity towards ISG15. [provided by RefSeq, Sep 2011]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.82).
BP6
Variant 22-18160167-T-G is Benign according to our data. Variant chr22-18160167-T-G is described in ClinVar as [Benign]. Clinvar id is 785677.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
USP18NM_017414.4 linkuse as main transcriptc.158-5T>G splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000215794.8
USP18XM_006724074.4 linkuse as main transcriptc.-65-5T>G splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
USP18ENST00000215794.8 linkuse as main transcriptc.158-5T>G splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_017414.4 P1Q9UMW8-1
USP18ENST00000699060.1 linkuse as main transcriptc.158-5T>G splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant

Frequencies

GnomAD3 genomes
AF:
0.00325
AC:
494
AN:
152136
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0113
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00111
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00431
GnomAD3 exomes
AF:
0.000756
AC:
190
AN:
251478
Hom.:
0
AF XY:
0.000530
AC XY:
72
AN XY:
135916
show subpopulations
Gnomad AFR exome
AF:
0.0104
Gnomad AMR exome
AF:
0.000347
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000352
Gnomad OTH exome
AF:
0.000489
GnomAD4 exome
AF:
0.000322
AC:
470
AN:
1461628
Hom.:
3
Cov.:
31
AF XY:
0.000278
AC XY:
202
AN XY:
727124
show subpopulations
Gnomad4 AFR exome
AF:
0.0114
Gnomad4 AMR exome
AF:
0.000380
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000927
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000809
Gnomad4 OTH exome
AF:
0.000861
GnomAD4 genome
AF:
0.00328
AC:
499
AN:
152254
Hom.:
1
Cov.:
32
AF XY:
0.00317
AC XY:
236
AN XY:
74446
show subpopulations
Gnomad4 AFR
AF:
0.0114
Gnomad4 AMR
AF:
0.00111
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00426
Alfa
AF:
0.000991
Hom.:
0
Bravo
AF:
0.00331
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeDec 31, 2019- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.82
Cadd
Benign
9.6
Dann
Benign
0.72

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00099
dbscSNV1_RF
Benign
0.11
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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs192782451; hg19: chr22-18642934; API