NM_000123.4:c.1259G>A

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_000123.4(ERCC5):​c.1259G>A​(p.Arg420His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000329 in 1,581,258 control chromosomes in the GnomAD database, including 1 homozygotes. 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0011 ( 1 hom., cov: 31)
Exomes 𝑓: 0.00026 ( 0 hom. )

Consequence

ERCC5
NM_000123.4 missense

Scores

18

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4O:1

Conservation

PhyloP100: -0.208
Variant links:
Genes affected
ERCC5 (HGNC:3437): (ERCC excision repair 5, endonuclease) This gene encodes a single-strand specific DNA endonuclease that makes the 3' incision in DNA excision repair following UV-induced damage. The protein may also function in other cellular processes, including RNA polymerase II transcription, and transcription-coupled DNA repair. Mutations in this gene cause xeroderma pigmentosum complementation group G (XP-G), which is also referred to as xeroderma pigmentosum VII (XP7), a skin disorder characterized by hypersensitivity to UV light and increased susceptibility for skin cancer development following UV exposure. Some patients also develop Cockayne syndrome, which is characterized by severe growth defects, cognitive disability, and cachexia. Read-through transcription exists between this gene and the neighboring upstream BIVM (basic, immunoglobulin-like variable motif containing) gene. [provided by RefSeq, Feb 2011]
BIVM-ERCC5 (HGNC:43690): (BIVM-ERCC5 readthrough) This locus represents naturally occurring read-through transcription between the neighboring BIVM (basic, immunoglobulin-like variable motif containing) and ERCC5 (excision repair cross-complementing rodent repair deficiency, complementation group 5) genes on chromosome 13. The read-through transcript encodes a fusion protein that shares sequence identity with the products of each individual gene. [provided by RefSeq, Feb 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.004959345).
BP6
Variant 13-102862408-G-A is Benign according to our data. Variant chr13-102862408-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 134193.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=1, not_provided=1}. Variant chr13-102862408-G-A is described in Lovd as [Likely_benign].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ERCC5NM_000123.4 linkc.1259G>A p.Arg420His missense_variant Exon 8 of 15 ENST00000652225.2 NP_000114.3 P28715-1
BIVM-ERCC5NM_001204425.2 linkc.2621G>A p.Arg874His missense_variant Exon 16 of 23 NP_001191354.2 R4GMW8Q59FZ7

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ERCC5ENST00000652225.2 linkc.1259G>A p.Arg420His missense_variant Exon 8 of 15 NM_000123.4 ENSP00000498881.2 P28715-1
BIVM-ERCC5ENST00000639435.1 linkc.2621G>A p.Arg874His missense_variant Exon 18 of 25 5 ENSP00000491742.1 R4GMW8
BIVM-ERCC5ENST00000639132.1 linkc.1934G>A p.Arg645His missense_variant Exon 17 of 24 5 ENSP00000492684.1 A0A1W2PS85

Frequencies

GnomAD3 genomes
AF:
0.00110
AC:
136
AN:
123596
Hom.:
1
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00341
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000952
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000180
Gnomad OTH
AF:
0.00179
GnomAD3 exomes
AF:
0.000231
AC:
58
AN:
251272
Hom.:
0
AF XY:
0.000133
AC XY:
18
AN XY:
135784
show subpopulations
Gnomad AFR exome
AF:
0.00240
Gnomad AMR exome
AF:
0.000174
Gnomad ASJ exome
AF:
0.0000993
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000880
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000263
AC:
384
AN:
1457540
Hom.:
0
Cov.:
32
AF XY:
0.000239
AC XY:
173
AN XY:
725196
show subpopulations
Gnomad4 AFR exome
AF:
0.00350
Gnomad4 AMR exome
AF:
0.000136
Gnomad4 ASJ exome
AF:
0.0000384
Gnomad4 EAS exome
AF:
0.0000760
Gnomad4 SAS exome
AF:
0.0000697
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000201
Gnomad4 OTH exome
AF:
0.000466
GnomAD4 genome
AF:
0.00110
AC:
136
AN:
123718
Hom.:
1
Cov.:
31
AF XY:
0.00109
AC XY:
67
AN XY:
61244
show subpopulations
Gnomad4 AFR
AF:
0.00340
Gnomad4 AMR
AF:
0.000950
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000180
Gnomad4 OTH
AF:
0.00177
Alfa
AF:
0.000206
Hom.:
0
Bravo
AF:
0.00102
ESP6500AA
AF:
0.00250
AC:
11
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000206
AC:
25
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:4Other:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Benign:3
-
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

-
Genome Diagnostics Laboratory, Amsterdam University Medical Center
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Jan 07, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Xeroderma pigmentosum, group G Uncertain:1
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Hereditary cancer-predisposing syndrome Benign:1
Nov 11, 2020
Sema4, Sema4
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: curation

- -

not specified Other:1
Sep 19, 2013
ITMI
Significance: not provided
Review Status: no classification provided
Collection Method: reference population

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.079
BayesDel_addAF
Benign
-0.68
T
BayesDel_noAF
Benign
-0.75
CADD
Benign
0.0060
DANN
Benign
0.93
DEOGEN2
Benign
0.076
.;.;.;T
Eigen
Benign
-2.0
Eigen_PC
Benign
-2.0
FATHMM_MKL
Benign
0.048
N
LIST_S2
Benign
0.25
T;T;.;T
M_CAP
Benign
0.0029
T
MetaRNN
Benign
0.0050
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
-0.34
.;.;.;N
PROVEAN
Benign
-0.60
.;.;.;N
REVEL
Benign
0.0090
Sift
Benign
0.63
.;.;.;T
Sift4G
Benign
0.47
.;.;.;T
Polyphen
0.0
.;.;.;B
Vest4
0.039
MVP
0.10
MPC
0.14
ClinPred
0.0040
T
GERP RS
-5.5
Varity_R
0.014
gMVP
0.14

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.

Other links and lift over

dbSNP: rs143667470; hg19: chr13-103514758; COSMIC: COSV63244308; COSMIC: COSV63244308; API