rs115428796

Variant names:

• chr19-42376574-C-A
• rs115428796
• NM_001271938.2:c.8337C>A

Your query was ambiguous. Multiple possible variants found:

• chr19-42376574-C-A
• chr19-42376574-C-T

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_001271938.2(MEGF8):​c.8337C>A​(p.Gly2779Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000714 in 1,399,904 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. G2779G) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 7.1e-7 (0 hom.)
• Consequence: MEGF8 NM_001271938.2 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -3.66
• Publications: 0 publications found

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

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.68).
• BP7: Synonymous conserved (PhyloP=-3.66 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MEGF8	NM_001271938.2	c.8337C>A	p.Gly2779Gly	synonymous_variant	Exon 42 of 42	ENST00000251268.11	NP_001258867.1
MEGF8	NM_001410.3	c.8136C>A	p.Gly2712Gly	synonymous_variant	Exon 41 of 41		NP_001401.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MEGF8	ENST00000251268.11	c.8337C>A	p.Gly2779Gly	synonymous_variant	Exon 42 of 42	5	NM_001271938.2	ENSP00000251268.5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.0000133 AC: 2 AN: 150130 AF XY: 0.0000246

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000170

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 7.14e-7 AC: 1 AN: 1399904 Hom.: 0 Cov.: 31 AF XY: 0.00000145 AC XY: 1 AN XY: 691440

African (AFR) AF: 0.00 AC: 0 AN: 31796

American (AMR) AF: 0.00 AC: 0 AN: 36294

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25212

East Asian (EAS) AF: 0.00 AC: 0 AN: 36028

South Asian (SAS) AF: 0.00 AC: 0 AN: 79790

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 44040

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5696

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1082832

Other (OTH) AF: 0.0000172 AC: 1 AN: 58216

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.68
CADD	Benign	0.22
DANN	Benign	0.62
PhyloP100		-3.7

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

Other links and lift over

dbSNP: rs115428796; hg19: chr19-42880726;