chr16-13926675-C-G

Variant names:

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS1

The NM_005236.3(ERCC4):c.503C>G(p.Ala168Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000911 in 1,613,946 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A168V) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00045 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000054 ( 0 hom. )

Consequence

ERCC4
NM_005236.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: 7.57

Publications

3 publications found

Variant links:

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]

ERCC4 Gene-Disease associations (from GenCC):

xeroderma pigmentosum group F
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, G2P, ClinGen
Fanconi anemia complementation group Q
Inheritance: AR Classification: STRONG, MODERATE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
XFE progeroid syndrome
Inheritance: AR Classification: STRONG Submitted by: Ambry Genetics
Fanconi anemia
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
xeroderma pigmentosum
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
xeroderma pigmentosum-Cockayne syndrome complex
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ERCC4 links:

LOC105371093 (HGNC:):

LOC105371093 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -7 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.13509637).

BP6

Variant 16-13926675-C-G is Benign according to our data. Variant chr16-13926675-C-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 240126.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000447 (68/152286) while in subpopulation AFR AF = 0.00152 (63/41560). AF 95% confidence interval is 0.00122. There are 0 homozygotes in GnomAd4. There are 35 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005236.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ERCC4	NM_005236.3	MANE Select	c.503C>G	p.Ala168Gly	missense	Exon 3 of 11	NP_005227.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
ERCC4	ENST00000311895.8	TSL:1 MANE Select	c.503C>G	p.Ala168Gly	missense	Exon 3 of 11	ENSP00000310520.7
ERCC4	ENST00000575156.5	TSL:1	c.503C>G	p.Ala168Gly	missense	Exon 3 of 6	ENSP00000459933.1
ERCC4	ENST00000682617.1		c.641C>G	p.Ala214Gly	missense	Exon 4 of 12	ENSP00000507912.1

Frequencies

GnomAD3 genomes

AF:

0.000447

AC:

AN:

152168

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00152

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

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:

0.00

Gnomad OTH

AF:

0.000956

GnomAD2 exomes

AF:

0.000115

AC:

AN:

251458

AF XY:

0.0000662

show subpopulations

Gnomad AFR exome

AF:

0.00166

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS 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:

0.0000540

AC:

AN:

1461660

Hom.:

Cov.:

AF XY:

0.0000413

AC XY:

AN XY:

727142

show subpopulations

African (AFR)

AF:

0.00164

AC:

AN:

33478

American (AMR)

AF:

0.0000894

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39688

South Asian (SAS)

AF:

0.0000348

AC:

AN:

86250

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.000694

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111818

Other (OTH)

AF:

0.000215

AC:

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.476

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000447

AC:

AN:

152286

Hom.:

Cov.:

AF XY:

0.000470

AC XY:

AN XY:

74470

show subpopulations

African (AFR)

AF:

0.00152

AC:

AN:

41560

American (AMR)

AF:

0.000196

AC:

AN:

15298

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68012

Other (OTH)

AF:

0.000946

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.490

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.000574

ExAC

AF:

0.000140

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

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

ERCC4-related disorder (1)

Fanconi anemia complementation group Q (1)

Xeroderma pigmentosum, group F;C1970416:XFE progeroid syndrome;C3808988:Fanconi anemia complementation group Q (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.44

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Uncertain

0.040

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.63

Eigen

Uncertain

0.49

Eigen_PC

Uncertain

0.52

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.89

M_CAP

Benign

0.021

MetaRNN

Benign

0.14

MetaSVM

Benign

-0.53

MutationAssessor

Uncertain

2.6

PhyloP100

7.6

PrimateAI

Uncertain

0.71

PROVEAN

Benign

-2.3

REVEL

Uncertain

0.32

Sift

Benign

0.17

Sift4G

Uncertain

0.048

Polyphen

0.61

Vest4

0.69

MutPred

0.62

Loss of stability (P = 0.0935)

MVP

0.93

MPC

0.24

ClinPred

0.097

GERP RS

5.3

Varity_R

0.53

gMVP

0.77

Mutation Taster

=52/48

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over