NM_005236.3:c.32C>T

Variant names:

• chr16-13920197-C-T
• rs753596005
• NM_005236.3:c.32C>T

Variant summary

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

The NM_005236.3(ERCC4):​c.32C>T​(p.Ala11Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,454,600 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. A11A) has been classified as Benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: ERCC4 NM_005236.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.635

Genes affected

ERCC4 (HGNC:3436): (ERCC excision repair 4, endonuclease catalytic subunit) The protein encoded by this gene forms a complex with ERCC1 and is involved in the 5' incision made during nucleotide excision repair. This complex is a structure specific DNA repair endonuclease that interacts with EME1. Defects in this gene are a cause of xeroderma pigmentosum complementation group F (XP-F), or xeroderma pigmentosum VI (XP6).[provided by RefSeq, Mar 2009]

LOC105371093 (HGNC:):

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=0.14500445).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ERCC4	NM_005236.3	c.32C>T	p.Ala11Val	missense_variant	Exon 1 of 11	ENST00000311895.8	NP_005227.1
ERCC4	XM_011522424.4	c.32C>T	p.Ala11Val	missense_variant	Exon 1 of 12		XP_011520726.1
LOC105371093	XR_007064999.1	n.82+6328G>A		intron_variant	Intron 1 of 2
LOC105371093	XR_007065000.1	n.82+6328G>A		intron_variant	Intron 1 of 3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ERCC4	ENST00000311895.8	c.32C>T	p.Ala11Val	missense_variant	Exon 1 of 11	1	NM_005236.3	ENSP00000310520.7

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD3 exomes AF: 0.0000123 AC: 3 AN: 243746 Hom.: 0 AF XY: 0.0000151 AC XY: 2 AN XY: 132888

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000109

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.0000607

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1454600 Hom.: 0 Cov.: 34 AF XY: 0.00000276 AC XY: 2 AN XY: 723978

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.0000215

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ExAC AF: 0.00000824 AC: 1

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Cockayne syndrome;C0268140:Xeroderma pigmentosum, group F;C3808988:Fanconi anemia complementation group Q Uncertain:1

Jun 04, 2019

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces alanine with valine at codon 11 of the ERCC4 protein (p.Ala11Val). The alanine residue is weakly conserved and there is a small physicochemical difference between alanine and valine. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. This variant has not been reported in the literature in individuals with ERCC4-related conditions. This variant is present in population databases (rs753596005, ExAC 0.01%). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.12
BayesDel_addAF	Benign	-0.097	T
BayesDel_noAF	Benign	-0.15
CADD	Benign	20
DANN	Uncertain	1.0
DEOGEN2	Benign	0.12	.;T
Eigen	Benign	-0.50
Eigen_PC	Benign	-0.48
FATHMM_MKL	Benign	0.26	N
LIST_S2	Benign	0.69	T;T
M_CAP	Benign	0.082	D
MetaRNN	Benign	0.15	T;T
MetaSVM	Benign	-0.96	T
MutationAssessor	Benign	0.69	N;N
PrimateAI	Uncertain	0.65	T
PROVEAN	Benign	-0.34	.;N
REVEL	Benign	0.073
Sift	Uncertain	0.011	.;D
Sift4G	Benign	0.083	T;D
Polyphen		0.36	.;B
Vest4		0.20
MutPred		0.27		Gain of helix (P = 0.0143);Gain of helix (P = 0.0143);
MVP		0.96
MPC		0.12
ClinPred		0.18	T
GERP RS		4.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.0
Varity_R		0.17
gMVP		0.28

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

Other links and lift over

dbSNP: rs753596005; hg19: chr16-14014054;