Variant chr8-27777058-T-TG details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate

The NM_001017420.3(ESCO2):c.751dup(p.Glu251GlyfsTer30) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000413 in 1,454,010 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

ESCO2
NM_001017420.3 frameshift

Scores

Not classified

Clinical Significance

Pathogenic criteria provided, single submitter P:2O:1

Conservation

PhyloP100: 0.756

Variant links:

Genes affected

ESCO2 (HGNC:27230): (establishment of sister chromatid cohesion N-acetyltransferase 2) This gene encodes a protein that may have acetyltransferase activity and may be required for the establishment of sister chromatid cohesion during the S phase of mitosis. Mutations in this gene have been associated with Roberts syndrome. [provided by RefSeq, Jul 2008]

ESCO2 links:

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 12 ACMG points.

PVS1

Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.

PM2

Very rare variant in population databases, with high coverage;

PP5

Variant 8-27777058-T-TG is Pathogenic according to our data. Variant chr8-27777058-T-TG is described in ClinVar as [Pathogenic]. Clinvar id is 1737.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ESCO2	NM_001017420.3 linkuse as main transcript	c.751dup	p.Glu251GlyfsTer30	frameshift_variant	3/11	ENST00000305188.13

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ESCO2	ENST00000305188.13 linkuse as main transcript	c.751dup	p.Glu251GlyfsTer30	frameshift_variant	3/11	1	NM_001017420.3	P1	Q56NI9-1
ESCO2	ENST00000524293.1 linkuse as main transcript	n.769dup		non_coding_transcript_exon_variant	2/2	1
ESCO2	ENST00000522378.5 linkuse as main transcript	c.751dup	p.Glu251GlyfsTer30	frameshift_variant, NMD_transcript_variant	3/12	1
ESCO2	ENST00000523910.1 linkuse as main transcript	n.550dup		non_coding_transcript_exon_variant	1/2	3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000413

AC:

AN:

1454010

Hom.:

Cov.:

AF XY:

0.00000553

AC XY:

AN XY:

722948

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000540

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:2Other:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Roberts-SC phocomelia syndrome

Pathogenic:1Other:1

not provided, no classification provided	literature only	GeneReviews	-	- -
Pathogenic, no assertion criteria provided	literature only	OMIM	May 01, 2005	- -

not provided

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 28, 2024

This sequence change creates a premature translational stop signal (p.Glu251Glyfs*30) in the ESCO2 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in ESCO2 are known to be pathogenic (PMID: 15821733, 16380922). This variant is not present in population databases (gnomAD no frequency). This premature translational stop signal has been observed in individual(s) with Roberts syndrome (PMID: 15821733). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 1737). For these reasons, this variant has been classified as Pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.11

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over