NM_001271938.2:c.6576G>A

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_001271938.2(MEGF8):​c.6576G>A​(p.Thr2192Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00473 in 1,613,866 control chromosomes in the GnomAD database, including 279 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.022 ( 134 hom., cov: 32)
Exomes 𝑓: 0.0029 ( 145 hom. )

Consequence

MEGF8
NM_001271938.2 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -8.17

Publications

1 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 -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.88).
BP6
Variant 19-42368937-G-A is Benign according to our data. Variant chr19-42368937-G-A is described in ClinVar as Benign. ClinVar VariationId is 473339.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-8.17 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0734 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MEGF8NM_001271938.2 linkc.6576G>A p.Thr2192Thr synonymous_variant Exon 37 of 42 ENST00000251268.11 NP_001258867.1 Q7Z7M0-1
MEGF8NM_001410.3 linkc.6375G>A p.Thr2125Thr synonymous_variant Exon 36 of 41 NP_001401.2 Q7Z7M0-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MEGF8ENST00000251268.11 linkc.6576G>A p.Thr2192Thr synonymous_variant Exon 37 of 42 5 NM_001271938.2 ENSP00000251268.5 Q7Z7M0-1
MEGF8ENST00000334370.8 linkc.6375G>A p.Thr2125Thr synonymous_variant Exon 36 of 41 1 ENSP00000334219.4 Q7Z7M0-2
MEGF8ENST00000378073.5 linkc.-510G>A 5_prime_UTR_variant Exon 37 of 41 5 ENSP00000367313.4 F5GZG7
MEGF8ENST00000598762.1 linkc.159+6724G>A intron_variant Intron 2 of 2 3 ENSP00000471370.1 M0R0Q0

Frequencies

GnomAD3 genomes
AF:
0.0220
AC:
3354
AN:
152198
Hom.:
128
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0750
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00988
Gnomad ASJ
AF:
0.00115
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.0222
Gnomad NFE
AF:
0.000676
Gnomad OTH
AF:
0.0172
GnomAD2 exomes
AF:
0.00610
AC:
1531
AN:
250902
AF XY:
0.00438
show subpopulations
Gnomad AFR exome
AF:
0.0756
Gnomad AMR exome
AF:
0.00460
Gnomad ASJ exome
AF:
0.00149
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000776
Gnomad OTH exome
AF:
0.00522
GnomAD4 exome
AF:
0.00291
AC:
4248
AN:
1461550
Hom.:
145
Cov.:
33
AF XY:
0.00264
AC XY:
1916
AN XY:
727062
show subpopulations
African (AFR)
AF:
0.0858
AC:
2872
AN:
33480
American (AMR)
AF:
0.00505
AC:
226
AN:
44718
Ashkenazi Jewish (ASJ)
AF:
0.00134
AC:
35
AN:
26128
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39700
South Asian (SAS)
AF:
0.000336
AC:
29
AN:
86258
European-Finnish (FIN)
AF:
0.0000188
AC:
1
AN:
53262
Middle Eastern (MID)
AF:
0.0165
AC:
95
AN:
5768
European-Non Finnish (NFE)
AF:
0.000487
AC:
541
AN:
1111862
Other (OTH)
AF:
0.00742
AC:
448
AN:
60374
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.470
Heterozygous variant carriers
0
257
515
772
1030
1287
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
102
204
306
408
510
<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:
0.0222
AC:
3388
AN:
152316
Hom.:
134
Cov.:
32
AF XY:
0.0216
AC XY:
1611
AN XY:
74472
show subpopulations
African (AFR)
AF:
0.0756
AC:
3143
AN:
41550
American (AMR)
AF:
0.00987
AC:
151
AN:
15304
Ashkenazi Jewish (ASJ)
AF:
0.00115
AC:
4
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.0238
AC:
7
AN:
294
European-Non Finnish (NFE)
AF:
0.000676
AC:
46
AN:
68038
Other (OTH)
AF:
0.0170
AC:
36
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.495
Heterozygous variant carriers
0
155
309
464
618
773
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
36
72
108
144
180
<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:
0.0123
Hom.:
40
Bravo
AF:
0.0260
Asia WGS
AF:
0.0130
AC:
47
AN:
3478
EpiCase
AF:
0.00104
EpiControl
AF:
0.000948

ClinVar

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

Submissions by phenotype

not provided Benign:2
Aug 15, 2019
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

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

- -

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
BayesDel_noAF
Benign
-0.88
CADD
Benign
0.23
DANN
Benign
0.61
PhyloP100
-8.2
Mutation Taster
=82/18
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: rs10425783; hg19: chr19-42873089; COSMIC: COSV52103012; COSMIC: COSV52103012; API