X-72207644-G-A

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_017669.4(ERCC6L):c.1123C>T(p.Pro375Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000397 in 1,208,018 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 27 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000027 ( 0 hom., 3 hem., cov: 22)

Exomes 𝑓: 0.000041 ( 0 hom. 24 hem. )

Consequence

ERCC6L
NM_017669.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.88

Variant links:

Genes affected

ERCC6L (HGNC:20794): (ERCC excision repair 6 like, spindle assembly checkpoint helicase) This gene encodes a member of the SWItch/Sucrose Non-Fermentable (SWI/SNF2) family of proteins, and contains a SNF2-like ATPase domain and a PICH family domain. One distinguishing feature of this SWI/SNF protein family member is that during interphase, the protein is excluded from the nucleus, and only associates with chromatin after the nuclear envelope has broken down. This protein is a DNA translocase that is thought to bind double-stranded DNA that is exposed to stretching forces, such as those exerted by the mitotic spindle. This protein associates with ribosomal DNA and ultra-fine DNA bridges (UFBs), fine structures that connect sister chromatids during anaphase at some sites such as fragile sites, telomeres and centromeres. This gene is required for the faithful segregation of sister chromatids during mitosis, and the ATPase activity of this protein required for the resolution of UFBs before cytokinesis. [provided by RefSeq, May 2017]

ERCC6L links:

PIN4 (HGNC:8992): (peptidylprolyl cis/trans isomerase, NIMA-interacting 4) This gene encodes a member of the parvulin subfamily of the peptidyl-prolyl cis/trans isomerase protein family. The encoded protein catalyzes the isomerization of peptidylprolyl bonds, and may play a role in the cell cycle, chromatin remodeling, and/or ribosome biogenesis. The encoded protein may play an additional role in the mitochondria. [provided by RefSeq, Dec 2009]

PIN4 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.09148854).

BS2

High Hemizygotes in GnomAd at 3 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
ERCC6L	NM_017669.4 linkuse as main transcript	c.1123C>T	p.Pro375Ser	missense_variant	2/2	ENST00000334463.4
ERCC6L	NM_001009954.3 linkuse as main transcript	c.754C>T	p.Pro252Ser	missense_variant	3/3
PIN4	NM_001170747.1 linkuse as main transcript	c.312+10740G>A		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ERCC6L	ENST00000334463.4 linkuse as main transcript	c.1123C>T	p.Pro375Ser	missense_variant	2/2	1	NM_017669.4	P1

Frequencies

GnomAD3 genomes

AF:

0.0000269

AC:

AN:

111562

Hom.:

Cov.:

AF XY:

0.0000888

AC XY:

AN XY:

33768

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00112

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000550

AC:

AN:

181751

Hom.:

AF XY:

0.000120

AC XY:

AN XY:

66479

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:

0.000485

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000123

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000410

AC:

AN:

1096456

Hom.:

Cov.:

AF XY:

0.0000663

AC XY:

AN XY:

361864

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:

0.000670

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000107

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000269

AC:

AN:

111562

Hom.:

Cov.:

AF XY:

0.0000888

AC XY:

AN XY:

33768

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00112

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000151

ExAC

AF:

0.0000494

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 21, 2023

The c.1123C>T (p.P375S) alteration is located in exon 2 (coding exon 2) of the ERCC6L gene. This alteration results from a C to T substitution at nucleotide position 1123, causing the proline (P) at amino acid position 375 to be replaced by a serine (S). 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

0.12

BayesDel_addAF

Benign

-0.40

BayesDel_noAF

Benign

-0.48

Cadd

Benign

Dann

Benign

0.93

DEOGEN2

Benign

0.016

T;T

FATHMM_MKL

Benign

0.63

LIST_S2

Benign

0.79

T;T

M_CAP

Pathogenic

0.31

MetaRNN

Benign

0.091

T;T

MetaSVM

Benign

-0.50

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.45

PROVEAN

Benign

-2.0

N;N

REVEL

Benign

0.26

Sift

Benign

0.30

T;T

Sift4G

Benign

0.59

T;T

Polyphen

0.097

.;B

Vest4

0.031

MutPred

0.52

.;Gain of MoRF binding (P = 0.0646);

MVP

0.70

MPC

0.77

ClinPred

0.028

GERP RS

5.1

Varity_R

0.11

gMVP

0.61

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

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