rs150607375

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_001271938.2(MEGF8):​c.5281C>G​(p.Leu1761Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000583 in 1,611,558 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00044 ( 1 hom., cov: 31)
Exomes 𝑓: 0.00060 ( 1 hom. )

Consequence

MEGF8
NM_001271938.2 missense

Scores

19

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: -0.473
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.019727409).
BP6
Variant 19-42358892-C-G is Benign according to our data. Variant chr19-42358892-C-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 473334.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=1}.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000441 (67/151960) while in subpopulation NFE AF= 0.000941 (64/67990). AF 95% confidence interval is 0.000756. There are 1 homozygotes in gnomad4. There are 31 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MEGF8NM_001271938.2 linkc.5281C>G p.Leu1761Val missense_variant Exon 30 of 42 ENST00000251268.11 NP_001258867.1 Q7Z7M0-1
MEGF8NM_001410.3 linkc.5080C>G p.Leu1694Val missense_variant Exon 29 of 41 NP_001401.2 Q7Z7M0-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MEGF8ENST00000251268.11 linkc.5281C>G p.Leu1761Val missense_variant Exon 30 of 42 5 NM_001271938.2 ENSP00000251268.5 Q7Z7M0-1
MEGF8ENST00000334370.8 linkc.5080C>G p.Leu1694Val missense_variant Exon 29 of 41 1 ENSP00000334219.4 Q7Z7M0-2
MEGF8ENST00000378073 linkc.-1805C>G 5_prime_UTR_premature_start_codon_gain_variant Exon 30 of 41 5 ENSP00000367313.4 F5GZG7
MEGF8ENST00000378073 linkc.-1805C>G 5_prime_UTR_variant Exon 30 of 41 5 ENSP00000367313.4 F5GZG7

Frequencies

GnomAD3 genomes
AF:
0.000441
AC:
67
AN:
151960
Hom.:
1
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000484
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:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000941
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.000463
AC:
114
AN:
246420
Hom.:
0
AF XY:
0.000465
AC XY:
62
AN XY:
133356
show subpopulations
Gnomad AFR exome
AF:
0.0000634
Gnomad AMR exome
AF:
0.000176
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000186
Gnomad NFE exome
AF:
0.000908
Gnomad OTH exome
AF:
0.000331
GnomAD4 exome
AF:
0.000597
AC:
872
AN:
1459598
Hom.:
1
Cov.:
32
AF XY:
0.000637
AC XY:
462
AN XY:
725806
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
Gnomad4 AMR exome
AF:
0.000158
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000117
Gnomad4 FIN exome
AF:
0.000394
Gnomad4 NFE exome
AF:
0.000734
Gnomad4 OTH exome
AF:
0.000431
GnomAD4 genome
AF:
0.000441
AC:
67
AN:
151960
Hom.:
1
Cov.:
31
AF XY:
0.000418
AC XY:
31
AN XY:
74216
show subpopulations
Gnomad4 AFR
AF:
0.0000484
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000941
Gnomad4 OTH
AF:
0.000479
Alfa
AF:
0.000539
Hom.:
1
Bravo
AF:
0.000393
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.000519
AC:
2
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000698
AC:
6
ExAC
AF:
0.000577
AC:
70
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Sep 16, 2021
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The c.5080C>G (p.L1694V) alteration is located in exon 29 (coding exon 29) of the MEGF8 gene. This alteration results from a C to G substitution at nucleotide position 5080, causing the leucine (L) at amino acid position 1694 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

MEGF8-related Carpenter syndrome Benign:1
Dec 02, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Benign:1
-
Breakthrough Genomics, Breakthrough Genomics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.085
BayesDel_addAF
Benign
-0.65
T
BayesDel_noAF
Benign
-0.73
CADD
Benign
0.10
DANN
Benign
0.25
DEOGEN2
Benign
0.070
.;T
Eigen
Benign
-1.6
Eigen_PC
Benign
-1.7
FATHMM_MKL
Benign
0.023
N
LIST_S2
Benign
0.53
T;T
M_CAP
Benign
0.011
T
MetaRNN
Benign
0.020
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.0
.;N
PrimateAI
Benign
0.31
T
PROVEAN
Benign
-0.30
N;N
REVEL
Benign
0.0010
Sift
Benign
0.17
T;T
Sift4G
Benign
0.15
T;T
Polyphen
0.0
B;B
Vest4
0.12
MVP
0.12
MPC
0.033
ClinPred
0.022
T
GERP RS
-5.1
Varity_R
0.034
gMVP
0.23

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.

Other links and lift over

dbSNP: rs150607375; hg19: chr19-42863044; API