Genetic Variant EDEM2:p.Arg424Cys (chr20-35115900-G-A) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_018217.3(EDEM2):c.1270C>T(p.Arg424Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000109 in 1,461,828 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

EDEM2
NM_018217.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.32

Variant links:

Genes affected

EDEM2 (HGNC:15877): (ER degradation enhancing alpha-mannosidase like protein 2) In the endoplasmic reticulum (ER), misfolded proteins are retrotranslocated to the cytosol and degraded by the proteasome in a process known as ER-associated degradation (ERAD). EDEM2 belongs to a family of proteins involved in ERAD of glycoproteins (Mast et al., 2005 [PubMed 15537790]).[supplied by OMIM, Mar 2008]

EDEM2 links:

MMP24-AS1-EDEM2 (HGNC:):

MMP24-AS1-EDEM2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.878

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EDEM2	NM_018217.3 link	c.1270C>T	p.Arg424Cys	missense_variant	Exon 11 of 11	ENST00000374492.8	NP_060687.2	Q9BV94-1
EDEM2	NM_001145025.2 link	c.1159C>T	p.Arg387Cys	missense_variant	Exon 10 of 10		NP_001138497.1	Q9BV94-2
MMP24-AS1-EDEM2	NM_001355008.2 link	c.1147C>T	p.Arg383Cys	missense_variant	Exon 15 of 15		NP_001341937.1
EDEM2	NR_026728.2 link	n.1564C>T		non_coding_transcript_exon_variant	Exon 10 of 10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
EDEM2	ENST00000374492.8 link	c.1270C>T	p.Arg424Cys	missense_variant	Exon 11 of 11	1	NM_018217.3	ENSP00000363616.3		Q9BV94-1
EDEM2	ENST00000374491.3 link	c.1159C>T	p.Arg387Cys	missense_variant	Exon 10 of 10	1		ENSP00000363615.2		Q9BV94-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000478

AC:

AN:

250832

Hom.:

AF XY:

0.0000516

AC XY:

AN XY:

135636

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000652

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000109

AC:

AN:

1461828

Hom.:

Cov.:

AF XY:

0.0000124

AC XY:

AN XY:

727204

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000151

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000450

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

Cov.:

Bravo

AF:

0.0000151

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 22, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1270C>T (p.R424C) alteration is located in exon 11 (coding exon 11) of the EDEM2 gene. This alteration results from a C to T substitution at nucleotide position 1270, causing the arginine (R) at amino acid position 424 to be replaced by a cysteine (C). 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

Pathogenic

0.97

BayesDel_addAF

Uncertain

0.14

BayesDel_noAF

Pathogenic

0.31

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.70

D;.

Eigen

Pathogenic

0.92

Eigen_PC

Pathogenic

0.84

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.97

D;D

M_CAP

Uncertain

0.18

MetaRNN

Pathogenic

0.88

D;D

MetaSVM

Uncertain

0.56

MutationAssessor

Pathogenic

4.1

H;.

PrimateAI

Pathogenic

0.87

PROVEAN

Pathogenic

-7.1

D;D

REVEL

Pathogenic

0.74

Sift

Pathogenic

0.0

D;D

Sift4G

Pathogenic

0.0

D;D

Polyphen

1.0

D;D

Vest4

0.90

MutPred

0.68

Loss of disorder (P = 0.0144);.;

MVP

0.94

MPC

1.3

ClinPred

0.98

GERP RS

4.5

Varity_R

0.95

gMVP

0.85

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

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