Genetic Variant EPG5:p.Phe1743Leu (chr18-45884692-G-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_020964.3(EPG5):c.5229C>A(p.Phe1743Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,459,634 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts 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. F1743F) has been classified as Benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

EPG5
NM_020964.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.12

Publications

0 publications found

Variant links:

Genes affected

EPG5 (HGNC:29331): (ectopic P-granules 5 autophagy tethering factor) This gene encodes a large coiled coil domain-containing protein that functions in autophagy during starvation conditions. Mutations in this gene cause Vici syndrome. [provided by RefSeq, Aug 2015]

EPG5 Gene-Disease associations (from GenCC):

Vici syndrome
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet, G2P

EPG5 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.12166321).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EPG5	NM_020964.3 link	c.5229C>A	p.Phe1743Leu	missense_variant	Exon 30 of 44	ENST00000282041.11	NP_066015.2	Q9HCE0-1Q9BTI0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
EPG5	ENST00000282041.11 link	c.5229C>A	p.Phe1743Leu	missense_variant	Exon 30 of 44	1	NM_020964.3	ENSP00000282041.4		Q9HCE0-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1459634

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726094

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33286

American (AMR)

AF:

0.00

AC:

AN:

44266

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26092

East Asian (EAS)

AF:

0.00

AC:

AN:

39476

South Asian (SAS)

AF:

0.0000117

AC:

AN:

85808

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53396

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5760

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111230

Other (OTH)

AF:

0.00

AC:

AN:

60320

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.225

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

Pathogenic

0.87

BayesDel_addAF

Benign

-0.097

BayesDel_noAF

Benign

-0.38

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.18

T;T

Eigen

Benign

-0.32

Eigen_PC

Benign

-0.17

FATHMM_MKL

Uncertain

0.89

LIST_S2

Benign

0.81

.;T

M_CAP

Benign

0.011

MetaRNN

Benign

0.12

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.4

L;L

PhyloP100

1.1

PrimateAI

Uncertain

0.64

PROVEAN

Uncertain

-3.5

D;.

REVEL

Benign

0.14

Sift

Benign

0.27

T;.

Sift4G

Benign

0.47

T;.

Polyphen

0.050

B;B

Vest4

0.58

MutPred

0.49

Gain of glycosylation at P1740 (P = 0.2578);Gain of glycosylation at P1740 (P = 0.2578);

MVP

0.23

MPC

0.64

ClinPred

0.75

GERP RS

3.1

Varity_R

0.21

gMVP

0.55

Mutation Taster

=80/20

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