Genetic Variant NM_016041.5:c.671A>G (chr17-5474733-T-C) – ACMG Classification: Likely_benign (-3 pts)

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4BS2

The NM_016041.5(DERL2):c.671A>G(p.Glu224Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,604 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

DERL2
NM_016041.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.67

Variant links:

Genes affected

DERL2 (HGNC:17943): (derlin 2) Proteins that are unfolded or misfolded in the endoplasmic reticulum (ER) must be refolded or degraded to maintain the homeostasis of the ER. DERL2 is involved in the degradation of misfolded glycoproteins in the ER (Oda et al., 2006 [PubMed 16449189]).[supplied by OMIM, Mar 2008]

DERL2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.27702218).

BS2

High AC in GnomAdExome4 at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DERL2	NM_016041.5 link	c.671A>G	p.Glu224Gly	missense_variant	Exon 7 of 7	ENST00000158771.9	NP_057125.2	Q9GZP9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DERL2	ENST00000158771.9 link	c.671A>G	p.Glu224Gly	missense_variant	Exon 7 of 7	1	NM_016041.5	ENSP00000158771.4		Q9GZP9

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000399

AC:

AN:

250882

Hom.:

AF XY:

0.00000737

AC XY:

AN XY:

135640

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:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000882

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000342

AC:

AN:

1461604

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727124

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000450

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 23, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.671A>G (p.E224G) alteration is located in exon 7 (coding exon 7) of the DERL2 gene. This alteration results from a A to G substitution at nucleotide position 671, causing the glutamic acid (E) at amino acid position 224 to be replaced by a glycine (G). 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

0.62

BayesDel_addAF

Benign

-0.052

BayesDel_noAF

Benign

-0.31

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.54

D;T

Eigen

Benign

0.077

Eigen_PC

Uncertain

0.27

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.93

D;D

M_CAP

Benign

0.0093

MetaRNN

Benign

0.28

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.2

M;.

PrimateAI

Uncertain

0.63

PROVEAN

Uncertain

-4.0

D;.

REVEL

Benign

0.14

Sift

Uncertain

0.025

D;.

Sift4G

Benign

0.085

T;T

Polyphen

0.0030

B;.

Vest4

0.33

MutPred

0.28

Loss of stability (P = 0.0265);.;

MVP

0.39

MPC

0.85

ClinPred

0.65

GERP RS

5.8

Varity_R

0.26

gMVP

0.70

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