rs80359869

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PVS1_StrongPM2PP5_Moderate

The NM_001017420.3(ESCO2):​c.1674-2A>G variant causes a splice acceptor change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,546 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Pathogenic (★).

Frequency

Genomes: not found (cov: 30)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

ESCO2
NM_001017420.3 splice_acceptor

Scores

5
1
1
Splicing: ADA: 1.000
2

Clinical Significance

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

Conservation

PhyloP100: 8.78
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PVS1
Splicing +-2 bp (donor or acceptor) variant, product NOT destroyed by NMD, known LOF gene, truncates exone, which is 1.1129568 fraction of the gene. Cryptic splice site detected, with MaxEntScore 5.3, offset of 30, new splice context is: atgtttggctgttttctcAGcac. Cryptic site results in inframe change. If cryptic site found is not functional and variant results in exon loss, it results in frameshift change.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 8-27803304-A-G is Pathogenic according to our data. Variant chr8-27803304-A-G is described in ClinVar as [Pathogenic]. Clinvar id is 21239.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr8-27803304-A-G is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ESCO2NM_001017420.3 linkuse as main transcriptc.1674-2A>G splice_acceptor_variant ENST00000305188.13 NP_001017420.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ESCO2ENST00000305188.13 linkuse as main transcriptc.1674-2A>G splice_acceptor_variant 1 NM_001017420.3 ENSP00000306999 P1Q56NI9-1
ESCO2ENST00000522378.5 linkuse as main transcriptc.*649-2A>G splice_acceptor_variant, NMD_transcript_variant 1 ENSP00000428928
ESCO2ENST00000397418.4 linkuse as main transcriptc.618-2A>G splice_acceptor_variant 5 ENSP00000380563 Q56NI9-2

Frequencies

GnomAD3 genomes
Cov.:
30
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251330
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135852
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461546
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727078
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
30
Alfa
AF:
0.000176
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1Other:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Roberts-SC phocomelia syndrome;C0796099:Juberg-Hayward syndrome Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsSep 21, 2021- -
Roberts-SC phocomelia syndrome Other:1
not provided, no classification providedliterature onlyGeneReviews-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.63
D
BayesDel_noAF
Pathogenic
0.20
CADD
Pathogenic
29
DANN
Uncertain
0.99
Eigen
Pathogenic
1.1
Eigen_PC
Pathogenic
0.98
FATHMM_MKL
Pathogenic
1.0
D
MutationTaster
Benign
1.0
A;A
GERP RS
5.9

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.93
SpliceAI score (max)
0.99
Details are displayed if max score is > 0.2
DS_AL_spliceai
0.99
Position offset: 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: rs80359869; hg19: chr8-27660821; API