Genetic Variant EPG5:c.6622-7_6622-6insTTTTTTTTTTTTTTTTTT (chr18-45865765-C-CAAAAAAAAAAAAAAAAAA) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

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

The NM_020964.3(EPG5):c.6622-7_6622-6insTTTTTTTTTTTTTTTTTT variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000975 in 102,560 control chromosomes in the GnomAD database, with no homozygous occurrence. It is difficult to determine the true allele frequency of this variant because it is of type INS_BIG, and the frequency of such variant types in population databases may be underestimated and unreliable. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000098 ( 0 hom., cov: 25)

Exomes 𝑓: 7.6e-7 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

EPG5
NM_020964.3 splice_region, intron

Scores

Not classified

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.327

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:

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ACMG classification

Classification was made for transcript

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

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EPG5	NM_020964.3 link	c.6622-7_6622-6insTTTTTTTTTTTTTTTTTT		splice_region_variant, intron_variant	Intron 38 of 43	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.6622-7_6622-6insTTTTTTTTTTTTTTTTTT		splice_region_variant, intron_variant	Intron 38 of 43	1	NM_020964.3	ENSP00000282041.4		Q9HCE0-1

Frequencies

GnomAD3 genomes

AF:

0.00000975

AC:

AN:

102560

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000398

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

7.64e-7

AC:

AN:

1309302

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

647542

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

28372

American (AMR)

AF:

0.00

AC:

AN:

30794

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

20628

East Asian (EAS)

AF:

0.00

AC:

AN:

37546

South Asian (SAS)

AF:

0.00

AC:

AN:

68130

European-Finnish (FIN)

AF:

0.00

AC:

AN:

37564

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4242

European-Non Finnish (NFE)

AF:

9.73e-7

AC:

AN:

1027594

Other (OTH)

AF:

0.00

AC:

AN:

54432

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000975

AC:

AN:

102560

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

49252

show subpopulations

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

African (AFR)

AF:

0.0000398

AC:

AN:

25154

American (AMR)

AF:

0.00

AC:

AN:

11364

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

2386

East Asian (EAS)

AF:

0.00

AC:

AN:

3992

South Asian (SAS)

AF:

0.00

AC:

AN:

3644

European-Finnish (FIN)

AF:

0.00

AC:

AN:

6252

Middle Eastern (MID)

AF:

0.00

AC:

AN:

164

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

47580

Other (OTH)

AF:

0.00

AC:

AN:

1434

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.275

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

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

PhyloP100

-0.33

Splicing

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

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over