19-42375942-G-A

Position:

chr19-42375942-G-A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001271938.2(MEGF8):c.7705G>A(p.Val2569Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00396 in 1,604,188 control chromosomes in the GnomAD database, including 19 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0025 ( 2 hom., cov: 32)

Exomes 𝑓: 0.0041 ( 17 hom. )

Consequence

MEGF8
NM_001271938.2 missense

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: 9.12

Variant links:

Genes affected

MEGF8 (HGNC:3233): (multiple EGF like domains 8) The protein encoded by this gene is a single-pass type I membrane protein of unknown function that contains several EGF-like domains, Kelch repeats, and PSI domains. Defects in this gene are a cause of Carpenter syndrome 2. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2012]

MEGF8 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.005036235).

BP6

Variant 19-42375942-G-A is Benign according to our data. Variant chr19-42375942-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 473348.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-42375942-G-A is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00251 (382/152298) while in subpopulation NFE AF= 0.00423 (288/68030). AF 95% confidence interval is 0.00383. There are 2 homozygotes in gnomad4. There are 168 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MEGF8	NM_001271938.2 linkuse as main transcript	c.7705G>A	p.Val2569Ile	missense_variant	42/42	ENST00000251268.11
MEGF8	NM_001410.3 linkuse as main transcript	c.7504G>A	p.Val2502Ile	missense_variant	41/41

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MEGF8	ENST00000251268.11 linkuse as main transcript	c.7705G>A	p.Val2569Ile	missense_variant	42/42	5	NM_001271938.2	A2	Q7Z7M0-1

Frequencies

GnomAD3 genomes

AF:

0.00251

AC:

382

AN:

152180

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000989

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00242

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00207

Gnomad FIN

AF:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00423

Gnomad OTH

AF:

0.00239

GnomAD3 exomes

AF:

0.00258

AC:

613

AN:

237494

Hom.:

AF XY:

0.00270

AC XY:

351

AN XY:

130086

show subpopulations

Gnomad AFR exome

AF:

0.000675

Gnomad AMR exome

AF:

0.00234

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00190

Gnomad FIN exome

AF:

0.000253

Gnomad NFE exome

AF:

0.00421

Gnomad OTH exome

AF:

0.00258

GnomAD4 exome

AF:

0.00411

AC:

5963

AN:

1451890

Hom.:

Cov.:

AF XY:

0.00415

AC XY:

2993

AN XY:

721482

show subpopulations

Gnomad4 AFR exome

AF:

0.000900

Gnomad4 AMR exome

AF:

0.00234

Gnomad4 ASJ exome

AF:

0.0000390

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00155

Gnomad4 FIN exome

AF:

0.000336

Gnomad4 NFE exome

AF:

0.00493

Gnomad4 OTH exome

AF:

0.00358

GnomAD4 genome

AF:

0.00251

AC:

382

AN:

152298

Hom.:

Cov.:

AF XY:

0.00226

AC XY:

168

AN XY:

74460

show subpopulations

Gnomad4 AFR

AF:

0.000986

Gnomad4 AMR

AF:

0.00242

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00207

Gnomad4 FIN

AF:

0.0000942

Gnomad4 NFE

AF:

0.00423

Gnomad4 OTH

AF:

0.00237

Alfa

AF:

0.00366

Hom.:

Bravo

AF:

0.00268

TwinsUK

AF:

0.00431

AC:

ALSPAC

AF:

0.00467

AC:

ESP6500AA

AF:

0.000688

AC:

ESP6500EA

AF:

0.00269

AC:

ExAC

AF:

0.00252

AC:

304

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:7

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:5

Likely benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Likely benign, no assertion criteria provided	clinical testing	Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)	-	- -
Likely benign, no assertion criteria provided	clinical testing	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	-	- -
Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Dec 01, 2023	MEGF8: BS2 -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Aug 13, 2019	- -

MEGF8-related Carpenter syndrome

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 31, 2024

- -

MEGF8-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

May 02, 2021

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.50

BayesDel_noAF

Benign

-0.49

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.078

.;.;T

Eigen

Uncertain

0.27

Eigen_PC

Uncertain

0.37

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.84

T;T;T

M_CAP

Benign

0.011

MetaRNN

Benign

0.0050

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.0

.;.;N

MutationTaster

Benign

0.99

D;D;D

PrimateAI

Uncertain

0.59

PROVEAN

Benign

-0.50

N;N;N

REVEL

Benign

0.091

Sift

Benign

0.12

T;T;T

Sift4G

Benign

0.47

T;T;T

Polyphen

0.80

P;P;P

Vest4

0.13

MVP

0.15

MPC

0.50

ClinPred

0.050

GERP RS

5.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.066

gMVP

0.26

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