1-111118224-A-G

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2BP4_ModerateBS1_Supporting

The NM_001349884.2(DRAM2):c.737T>C(p.Leu246Pro) variant causes a missense change. The variant allele was found at a frequency of 0.000561 in 1,612,948 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00031 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00059 ( 1 hom. )

Consequence

DRAM2
NM_001349884.2 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:5

Conservation

PhyloP100: 5.59

Variant links:

Genes affected

DRAM2 (HGNC:28769): (DNA damage regulated autophagy modulator 2) The protein encoded by this gene binds microtubule-associated protein 1 light chain 3 and is required for autophagy. Defects in this gene are a cause of retinal dystrophy. In addition, two microRNAs (microRNA 125b-1 and microRNA 144) can bind to the mRNA of this gene and produce the disease state. [provided by RefSeq, Mar 2017]

DRAM2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.19191244).

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000309 (47/151998) while in subpopulation NFE AF= 0.000648 (44/67888). AF 95% confidence interval is 0.000496. There are 0 homozygotes in gnomad4. There are 22 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DRAM2	NM_001349884.2 link	c.737T>C	p.Leu246Pro	missense_variant	Exon 10 of 10	ENST00000484310.6	NP_001336813.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DRAM2	ENST00000484310.6 link	c.737T>C	p.Leu246Pro	missense_variant	Exon 10 of 10	1	NM_001349884.2	ENSP00000503400.1		Q6UX65

Frequencies

GnomAD3 genomes

AF:

0.000309

AC:

AN:

151998

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000648

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000335

AC:

AN:

250858

Hom.:

AF XY:

0.000332

AC XY:

AN XY:

135584

show subpopulations

Gnomad AFR exome

AF:

0.0000616

Gnomad AMR exome

AF:

0.000116

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000277

Gnomad NFE exome

AF:

0.000635

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.000587

AC:

858

AN:

1460950

Hom.:

Cov.:

AF XY:

0.000566

AC XY:

411

AN XY:

726764

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000134

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.000169

Gnomad4 NFE exome

AF:

0.000740

Gnomad4 OTH exome

AF:

0.000331

GnomAD4 genome

AF:

0.000309

AC:

AN:

151998

Hom.:

Cov.:

AF XY:

0.000296

AC XY:

AN XY:

74268

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000942

Gnomad4 NFE

AF:

0.000648

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.000474

Hom.:

Bravo

AF:

0.000291

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.00104

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000465

AC:

ExAC

AF:

0.000371

AC:

EpiCase

AF:

0.000546

EpiControl

AF:

0.000593

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Pathogenic:1Uncertain:5

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Pathogenic:1Uncertain:3

Clinical Genetics, Academic Medical Center

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Nov 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Jan 20, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces leucine, which is neutral and non-polar, with proline, which is neutral and non-polar, at codon 246 of the DRAM2 protein (p.Leu246Pro). This variant is present in population databases (rs148031211, gnomAD 0.07%). This missense change has been observed in individual(s) with inherited retinal disease (PMID: 32483926, 35806404; internal data). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 863836). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. For these reasons, this variant has been classified as Pathogenic. -

Cone-rod dystrophy 21

Uncertain:1

Sep 23, 2021

Institute of Human Genetics, University of Leipzig Medical Center

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Retinal dystrophy

Uncertain:1

Jan 01, 2023

Institute of Human Genetics, Univ. Regensburg, Univ. Regensburg

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.63

BayesDel_addAF

Uncertain

0.13

BayesDel_noAF

Pathogenic

0.32

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.037

T;T

Eigen

Uncertain

0.56

Eigen_PC

Uncertain

0.61

FATHMM_MKL

Uncertain

0.97

LIST_S2

Benign

0.70

.;T

M_CAP

Benign

0.019

MetaRNN

Benign

0.19

T;T

MetaSVM

Benign

-0.66

MutationAssessor

Uncertain

2.1

M;M

PrimateAI

Uncertain

0.64

PROVEAN

Benign

-1.6

N;N

REVEL

Uncertain

0.30

Sift

Uncertain

0.0010

D;D

Sift4G

Uncertain

0.034

D;D

Polyphen

1.0

D;D

Vest4

0.48

MVP

0.40

MPC

0.77

ClinPred

0.26

GERP RS

5.8

Varity_R

0.70

gMVP

0.86

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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