rs112167630

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001271938.2(MEGF8):​c.7054G>A​(p.Val2352Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0228 in 1,581,696 control chromosomes in the GnomAD database, including 500 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.016 ( 31 hom., cov: 27)
Exomes 𝑓: 0.024 ( 469 hom. )

Consequence

MEGF8
NM_001271938.2 missense

Scores

2
8
8

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 7.54

Publications

9 publications found
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 Gene-Disease associations (from GenCC):
  • MEGF8-related Carpenter syndrome
    Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: PanelApp Australia, G2P, Ambry Genetics, ClinGen, Labcorp Genetics (formerly Invitae)
  • Carpenter syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.008328646).
BP6
Variant 19-42370749-G-A is Benign according to our data. Variant chr19-42370749-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 473343.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.0163 (2454/150866) while in subpopulation NFE AF = 0.0246 (1662/67610). AF 95% confidence interval is 0.0236. There are 31 homozygotes in GnomAd4. There are 1177 alleles in the male GnomAd4 subpopulation. Median coverage is 27. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 31 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MEGF8NM_001271938.2 linkc.7054G>A p.Val2352Met missense_variant Exon 40 of 42 ENST00000251268.11 NP_001258867.1 Q7Z7M0-1
MEGF8NM_001410.3 linkc.6853G>A p.Val2285Met missense_variant Exon 39 of 41 NP_001401.2 Q7Z7M0-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MEGF8ENST00000251268.11 linkc.7054G>A p.Val2352Met missense_variant Exon 40 of 42 5 NM_001271938.2 ENSP00000251268.5 Q7Z7M0-1

Frequencies

GnomAD3 genomes
AF:
0.0163
AC:
2455
AN:
150752
Hom.:
31
Cov.:
27
show subpopulations
Gnomad AFR
AF:
0.00411
Gnomad AMI
AF:
0.0220
Gnomad AMR
AF:
0.00640
Gnomad ASJ
AF:
0.0309
Gnomad EAS
AF:
0.000195
Gnomad SAS
AF:
0.00189
Gnomad FIN
AF:
0.0341
Gnomad MID
AF:
0.00949
Gnomad NFE
AF:
0.0246
Gnomad OTH
AF:
0.0165
GnomAD2 exomes
AF:
0.0179
AC:
3632
AN:
202642
AF XY:
0.0182
show subpopulations
Gnomad AFR exome
AF:
0.00316
Gnomad AMR exome
AF:
0.00538
Gnomad ASJ exome
AF:
0.0326
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0362
Gnomad NFE exome
AF:
0.0261
Gnomad OTH exome
AF:
0.0208
GnomAD4 exome
AF:
0.0235
AC:
33649
AN:
1430830
Hom.:
469
Cov.:
31
AF XY:
0.0228
AC XY:
16184
AN XY:
708736
show subpopulations
African (AFR)
AF:
0.00338
AC:
111
AN:
32830
American (AMR)
AF:
0.00567
AC:
226
AN:
39840
Ashkenazi Jewish (ASJ)
AF:
0.0352
AC:
900
AN:
25566
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38222
South Asian (SAS)
AF:
0.00212
AC:
173
AN:
81674
European-Finnish (FIN)
AF:
0.0359
AC:
1846
AN:
51414
Middle Eastern (MID)
AF:
0.00279
AC:
16
AN:
5730
European-Non Finnish (NFE)
AF:
0.0267
AC:
29265
AN:
1096214
Other (OTH)
AF:
0.0187
AC:
1112
AN:
59340
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.484
Heterozygous variant carriers
0
1436
2873
4309
5746
7182
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
1098
2196
3294
4392
5490
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0163
AC:
2454
AN:
150866
Hom.:
31
Cov.:
27
AF XY:
0.0160
AC XY:
1177
AN XY:
73644
show subpopulations
African (AFR)
AF:
0.00410
AC:
169
AN:
41216
American (AMR)
AF:
0.00645
AC:
97
AN:
15028
Ashkenazi Jewish (ASJ)
AF:
0.0309
AC:
107
AN:
3462
East Asian (EAS)
AF:
0.000196
AC:
1
AN:
5110
South Asian (SAS)
AF:
0.00189
AC:
9
AN:
4762
European-Finnish (FIN)
AF:
0.0341
AC:
354
AN:
10392
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.0246
AC:
1662
AN:
67610
Other (OTH)
AF:
0.0163
AC:
34
AN:
2084
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.534
Heterozygous variant carriers
0
110
219
329
438
548
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
30
60
90
120
150
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0217
Hom.:
126
Bravo
AF:
0.0142
TwinsUK
AF:
0.0270
AC:
100
ALSPAC
AF:
0.0288
AC:
111
ESP6500AA
AF:
0.00477
AC:
21
ESP6500EA
AF:
0.0248
AC:
213
ExAC
AF:
0.0161
AC:
1944
Asia WGS
AF:
0.00173
AC:
6
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Mar 21, 2021
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

MEGF8-related Carpenter syndrome Benign:1
Feb 02, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.24
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.30
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.17
.;T;.
Eigen
Pathogenic
0.70
Eigen_PC
Uncertain
0.65
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Uncertain
0.95
D;D;D
MetaRNN
Benign
0.0083
T;T;T
MetaSVM
Benign
-0.35
T
MutationAssessor
Uncertain
2.2
.;M;.
PhyloP100
7.5
PrimateAI
Uncertain
0.69
T
PROVEAN
Benign
-1.4
N;N;.
REVEL
Uncertain
0.30
Sift
Uncertain
0.0060
D;D;.
Sift4G
Pathogenic
0.0
D;D;D
Polyphen
1.0
D;D;.
Vest4
0.42
MPC
1.5
ClinPred
0.0086
T
GERP RS
4.9
Varity_R
0.30
gMVP
0.55
Mutation Taster
=228/72
polymorphism (auto)

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

Other links and lift over

dbSNP: rs112167630; hg19: chr19-42874901; COSMIC: COSV99044067; API