Genetic Variant USE1:p.Thr78Ile (chr19-17216170-C-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_018467.4(USE1):c.233C>T(p.Thr78Ile) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.000000685 in 1,460,508 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/23 in silico tools predict a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

USE1
NM_018467.4 missense, splice_region

Scores

Splicing: ADA: 0.9385

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.79

Variant links:

Genes affected

USE1 (HGNC:30882): (unconventional SNARE in the ER 1) Predicted to enable SNAP receptor activity. Predicted to be involved in several processes, including lysosomal transport; protein catabolic process; and retrograde vesicle-mediated transport, Golgi to endoplasmic reticulum. Predicted to act upstream of or within endoplasmic reticulum tubular network organization and regulation of ER to Golgi vesicle-mediated transport. Located in endoplasmic reticulum. [provided by Alliance of Genome Resources, Apr 2022]

USE1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.32774216).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
USE1	NM_018467.4 link	c.233C>T	p.Thr78Ile	missense_variant, splice_region_variant	Exon 4 of 8	ENST00000263897.10	NP_060937.2	Q9NZ43-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
USE1	ENST00000263897.10 link	c.233C>T	p.Thr78Ile	missense_variant, splice_region_variant	Exon 4 of 8	1	NM_018467.4	ENSP00000263897.4		Q9NZ43-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000402

AC:

AN:

248778

Hom.:

AF XY:

0.00000740

AC XY:

AN XY:

135106

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 SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1460508

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726382

show subpopulations

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:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 12, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.233C>T (p.T78I) alteration is located in exon 4 (coding exon 4) of the USE1 gene. This alteration results from a C to T substitution at nucleotide position 233, causing the threonine (T) at amino acid position 78 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.16

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.52

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.18

T;.;.;T;T

Eigen

Benign

0.017

Eigen_PC

Benign

0.11

FATHMM_MKL

Uncertain

0.91

LIST_S2

Uncertain

0.92

D;D;D;D;D

M_CAP

Benign

0.024

MetaRNN

Benign

0.33

T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.4

L;L;L;.;.

PrimateAI

Benign

0.46

PROVEAN

Benign

-2.0

N;.;.;N;.

REVEL

Benign

0.099

Sift

Benign

0.045

D;.;.;D;.

Sift4G

Benign

0.14

T;T;T;T;T

Polyphen

0.61

P;B;P;.;.

Vest4

0.27

MutPred

0.45

Loss of ubiquitination at K76 (P = 0.0645);Loss of ubiquitination at K76 (P = 0.0645);Loss of ubiquitination at K76 (P = 0.0645);Loss of ubiquitination at K76 (P = 0.0645);.;

MVP

0.69

MPC

0.45

ClinPred

0.55

GERP RS

4.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.18

gMVP

0.11

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.94

dbscSNV1_RF

Pathogenic

0.73

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over