rs757551016

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 2P and 11B. PM2BP4_StrongBP6_ModerateBP7BS1

The NM_001271938.2(MEGF8):ā€‹c.2649T>Cā€‹(p.Asp883=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000273 in 1,609,470 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (ā˜…).

Frequency

Genomes: š‘“ 0.00012 ( 0 hom., cov: 32)
Exomes š‘“: 0.000017 ( 0 hom. )

Consequence

MEGF8
NM_001271938.2 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -2.40
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.94).
BP6
Variant 19-42350297-T-C is Benign according to our data. Variant chr19-42350297-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 540550.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=-2.4 with no splicing effect.
BS1
Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.000125 (19/152374) while in subpopulation AMR AF= 0.000588 (9/15312). AF 95% confidence interval is 0.000306. There are 0 homozygotes in gnomad4. There are 4 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MEGF8NM_001271938.2 linkuse as main transcriptc.2649T>C p.Asp883= synonymous_variant 15/42 ENST00000251268.11 NP_001258867.1
MEGF8NM_001410.3 linkuse as main transcriptc.2448T>C p.Asp816= synonymous_variant 14/41 NP_001401.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MEGF8ENST00000251268.11 linkuse as main transcriptc.2649T>C p.Asp883= synonymous_variant 15/425 NM_001271938.2 ENSP00000251268 A2Q7Z7M0-1
MEGF8ENST00000334370.8 linkuse as main transcriptc.2448T>C p.Asp816= synonymous_variant 14/411 ENSP00000334219 P2Q7Z7M0-2
MEGF8ENST00000378073.5 linkuse as main transcriptc.-4437T>C 5_prime_UTR_variant 15/415 ENSP00000367313

Frequencies

GnomAD3 genomes
AF:
0.0000920
AC:
14
AN:
152256
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000589
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:
0.0000294
Gnomad OTH
AF:
0.000955
GnomAD3 exomes
AF:
0.0000203
AC:
5
AN:
245740
Hom.:
0
AF XY:
0.0000225
AC XY:
3
AN XY:
133460
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000546
Gnomad SAS exome
AF:
0.0000655
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000893
Gnomad OTH exome
AF:
0.000165
GnomAD4 exome
AF:
0.0000172
AC:
25
AN:
1457096
Hom.:
0
Cov.:
32
AF XY:
0.0000179
AC XY:
13
AN XY:
725188
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000450
Gnomad4 OTH exome
AF:
0.000315
GnomAD4 genome
AF:
0.000125
AC:
19
AN:
152374
Hom.:
0
Cov.:
32
AF XY:
0.0000537
AC XY:
4
AN XY:
74514
show subpopulations
Gnomad4 AFR
AF:
0.0000240
Gnomad4 AMR
AF:
0.000588
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00331
Alfa
AF:
0.0000566
Hom.:
0
Bravo
AF:
0.0000264
Asia WGS
AF:
0.00953
AC:
33
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

MEGF8-related Carpenter syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 18, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.94
CADD
Benign
0.39
DANN
Benign
0.26

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
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: rs757551016; hg19: chr19-42854449; API