18-45910574-G-C

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_020964.3(EPG5):c.4152C>G(p.His1384Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000481 in 1,613,792 control chromosomes in the GnomAD database, including 1 homozygotes. 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 Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. H1384H) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00032 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00050 ( 1 hom. )

Consequence

EPG5
NM_020964.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 0.796

Publications

3 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:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.013958991).

BP6

Variant 18-45910574-G-C is Benign according to our data. Variant chr18-45910574-G-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 570618.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020964.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
EPG5	NM_020964.3	MANE Select	c.4152C>G	p.His1384Gln	missense	Exon 23 of 44	NP_066015.2
EPG5	NM_001410859.1		c.4152C>G	p.His1384Gln	missense	Exon 23 of 44	NP_001397788.1
EPG5	NM_001410858.1		c.4152C>G	p.His1384Gln	missense	Exon 23 of 44	NP_001397787.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
EPG5	ENST00000282041.11	TSL:1 MANE Select	c.4152C>G	p.His1384Gln	missense	Exon 23 of 44	ENSP00000282041.4
EPG5	ENST00000587884.2	TSL:1	n.4152C>G		non_coding_transcript_exon	Exon 23 of 45	ENSP00000466990.2
EPG5	ENST00000587974.1	TSL:1	n.4187C>G		non_coding_transcript_exon	Exon 23 of 24

Frequencies

GnomAD3 genomes

AF:

0.000322

AC:

AN:

152216

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000193

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.000603

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000281

AC:

AN:

249268

AF XY:

0.000281

show subpopulations

Gnomad AFR exome

AF:

0.000129

Gnomad AMR exome

AF:

0.0000580

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000464

Gnomad NFE exome

AF:

0.000575

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000497

AC:

727

AN:

1461576

Hom.:

Cov.:

AF XY:

0.000477

AC XY:

347

AN XY:

727092

show subpopulations

African (AFR)

AF:

0.000119

AC:

AN:

33478

American (AMR)

AF:

0.0000447

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26128

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86226

European-Finnish (FIN)

AF:

0.0000187

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5608

European-Non Finnish (NFE)

AF:

0.000633

AC:

704

AN:

1111936

Other (OTH)

AF:

0.000265

AC:

AN:

60368

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.474

Heterozygous variant carriers

113

151

189

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

112

140

<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:

0.000322

AC:

AN:

152216

Hom.:

Cov.:

AF XY:

0.000336

AC XY:

AN XY:

74358

show subpopulations

African (AFR)

AF:

0.000193

AC:

AN:

41466

American (AMR)

AF:

0.00

AC:

AN:

15288

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000603

AC:

AN:

68040

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.541

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.000491

Hom.:

Bravo

AF:

0.000306

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00104

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000364

AC:

ExAC

AF:

0.000323

AC:

EpiCase

AF:

0.000382

EpiControl

AF:

0.000178

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Vici syndrome

Uncertain:1

Aug 22, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces histidine, which is basic and polar, with glutamine, which is neutral and polar, at codon 1384 of the EPG5 protein (p.His1384Gln). This variant is present in population databases (rs200079588, gnomAD 0.05%). This variant has not been reported in the literature in individuals affected with EPG5-related conditions. ClinVar contains an entry for this variant (Variation ID: 570618). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". 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.

Inborn genetic diseases

Benign:1

Oct 12, 2021

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 v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.070

BayesDel_addAF

Benign

-0.66

BayesDel_noAF

Benign

-0.83

CADD

Benign

7.6

(source)

DANN

Benign

0.64

DEOGEN2

Benign

0.0021

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.011

LIST_S2

Benign

0.27

M_CAP

Benign

0.0021

MetaRNN

Benign

0.014

MetaSVM

Benign

-0.93

MutationAssessor

Benign

-1.8

PhyloP100

0.80

PrimateAI

Benign

0.34

PROVEAN

Benign

1.1

REVEL

Benign

0.022

Sift

Benign

0.72

Sift4G

Benign

0.61

Polyphen

0.0

Vest4

0.095

MutPred

0.14

Gain of solvent accessibility (P = 0.0338)

MVP

0.061

MPC

0.15

ClinPred

0.0078

GERP RS

-0.032

Varity_R

0.036

gMVP

0.23

Mutation Taster

=85/15

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over