Variant 19-42333704-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001271938.2(MEGF8):c.287G>A(p.Gly96Glu) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,684 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

MEGF8
NM_001271938.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.06

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:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MEGF8	NM_001271938.2 linkuse as main transcript	c.287G>A	p.Gly96Glu	missense_variant	2/42	ENST00000251268.11
MEGF8	NM_001410.3 linkuse as main transcript	c.287G>A	p.Gly96Glu	missense_variant	2/41

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MEGF8	ENST00000251268.11 linkuse as main transcript	c.287G>A	p.Gly96Glu	missense_variant	2/42	5	NM_001271938.2	A2	Q7Z7M0-1
MEGF8	ENST00000334370.8 linkuse as main transcript	c.287G>A	p.Gly96Glu	missense_variant	2/41	1		P2	Q7Z7M0-2
MEGF8	ENST00000378073.5 linkuse as main transcript	c.-6799G>A		5_prime_UTR_variant	2/41	5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000401

AC:

AN:

249150

Hom.:

AF XY:

0.00000740

AC XY:

AN XY:

135170

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000556

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:

6.84e-7

AC:

AN:

1461684

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727130

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000826

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

MEGF8-related Carpenter syndrome

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 11, 2023

This sequence change replaces glycine, which is neutral and non-polar, with glutamic acid, which is acidic and polar, at codon 96 of the MEGF8 protein (p.Gly96Glu). This variant is present in population databases (rs780016069, gnomAD 0.006%). This variant has not been reported in the literature in individuals affected with MEGF8-related conditions. ClinVar contains an entry for this variant (Variation ID: 1977100). 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 tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.22

BayesDel_addAF

Benign

-0.088

BayesDel_noAF

Benign

-0.20

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.14

.;T

Eigen

Uncertain

0.35

Eigen_PC

Uncertain

0.38

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.87

D;D

M_CAP

Uncertain

0.094

MetaRNN

Uncertain

0.45

T;T

MetaSVM

Benign

-0.82

MutationAssessor

Benign

0.53

N;N

MutationTaster

Benign

0.83

D;D

PrimateAI

Uncertain

0.67

PROVEAN

Benign

-2.0

N;N

REVEL

Benign

0.23

Sift

Benign

0.084

T;D

Sift4G

Uncertain

0.057

T;T

Polyphen

0.88

P;.

Vest4

0.55

MutPred

0.51

Gain of disorder (P = 0.1411);Gain of disorder (P = 0.1411);

MVP

0.49

MPC

0.81

ClinPred

0.50

GERP RS

5.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.092

gMVP

0.69

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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