3-68977647-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001278689.2(EOGT):c.1555C>G(p.Pro519Ala) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,340 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 Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: EOGT NM_001278689.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.75

Genes affected

EOGT (HGNC:28526): (EGF domain specific O-linked N-acetylglucosamine transferase) This gene encodes an enzyme that acts in the lumen of the endoplasmic reticulum to catalyze the transfer of N-acetylglucosamine to serine or threonine residues of extracellular-targeted proteins. This enzyme modifies proteins containing eukaryotic growth factor (EGF)-like domains, including the Notch receptor, thereby regulating developmental signalling. Mutations in this gene have been observed in individuals with Adams-Oliver syndrome 4. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2015]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.15731442).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
EOGT	NM_001278689.2	c.1555C>G	p.Pro519Ala	missense_variant	18/18	ENST00000383701.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
EOGT	ENST00000383701.8	c.1555C>G	p.Pro519Ala	missense_variant	18/18	1	NM_001278689.2	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461340 Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2 AN XY: 726956

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: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000180

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Inborn genetic diseases Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 04, 2024

The c.1303C>G (p.P435A) alteration is located in exon 15 (coding exon 12) of the EOGT gene. This alteration results from a C to G substitution at nucleotide position 1303, causing the proline (P) at amino acid position 435 to be replaced by an alanine (A). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.099
BayesDel_addAF	Uncertain	0.024	T
BayesDel_noAF	Benign	-0.20
Cadd	Benign	22
Dann	Uncertain	0.98
DEOGEN2	Benign	0.031	T;.;T;.
Eigen	Uncertain	0.44
Eigen_PC	Uncertain	0.51
FATHMM_MKL	Pathogenic	0.99	D
M_CAP	Benign	0.0088	T
MetaRNN	Benign	0.16	T;T;T;T
MetaSVM	Benign	-0.63	T
MutationAssessor	Uncertain	2.1	M;.;M;.
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Benign	0.41	T
PROVEAN	Benign	-0.65	N;N;.;.
REVEL	Benign	0.12
Sift	Benign	0.10	T;T;.;.
Sift4G	Benign	0.28	T;T;T;T
Polyphen		0.43	B;P;B;P
Vest4		0.30
MutPred		0.24		Loss of glycosylation at P519 (P = 0.0192);.;Loss of glycosylation at P519 (P = 0.0192);.;
MVP		0.49
MPC		0.56
ClinPred		0.61	D
GERP RS		5.5
Varity_R		0.047
gMVP		0.41

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr3-69026798;