NM_000124.4:c.2825C>G

Variant names:

• chr10-49472913-G-C
• rs2228525
• NM_000124.4:c.2825C>G

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_000124.4(ERCC6):​c.2825C>G​(p.Thr942Arg) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T942M) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: ERCC6 NM_000124.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.89
• Publications: 0 publications found

Genes affected

ERCC6 (HGNC:3438): (ERCC excision repair 6, chromatin remodeling factor) This gene encodes a DNA-binding protein that is important in transcription-coupled excision repair. The encoded protein has ATP-stimulated ATPase activity, interacts with several transcription and excision repair proteins, and may promote complex formation at DNA repair sites. Mutations in this gene are associated with Cockayne syndrome type B and cerebrooculofacioskeletal syndrome 1. Alternative splicing occurs between a splice site from exon 5 of this gene to the 3' splice site upstream of the open reading frame (ORF) of the adjacent gene, piggyback-derived-3 (GeneID:267004), which activates the alternative polyadenylation site downstream of the piggyback-derived-3 ORF. The resulting transcripts encode a fusion protein that shares sequence with the product of each individual gene. [provided by RefSeq, Mar 2016]

ERCC6 Gene-Disease associations (from GenCC):

• Cockayne spectrum with or without cerebrooculofacioskeletal syndrome

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• Cockayne syndrome type 2

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Myriad Women’s Health, Orphanet, Genomics England PanelApp, PanelApp Australia, Labcorp Genetics (formerly Invitae)
• UV-sensitive syndrome 1

  Inheritance: AR Classification: STRONG Submitted by: Genomics England PanelApp
• COFS syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• UV-sensitive syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• premature ovarian failure 11

  Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

ENSG00000235939 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.911

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000124.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ERCC6	NM_000124.4	MANE Select	c.2825C>G	p.Thr942Arg	missense	Exon 15 of 21	NP_000115.1
	ERCC6	NM_001346440.2		c.2825C>G	p.Thr942Arg	missense	Exon 15 of 21	NP_001333369.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ERCC6	ENST00000355832.10	TSL:1 MANE Select	c.2825C>G	p.Thr942Arg	missense	Exon 15 of 21	ENSP00000348089.5
	ERCC6	ENST00000623073.3	TSL:1	n.7209C>G		non_coding_transcript_exon	Exon 9 of 15
	ERCC6	ENST00000624341.3	TSL:1	n.*424C>G		non_coding_transcript_exon	Exon 5 of 11	ENSP00000485163.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.52
BayesDel_addAF	Uncertain	0.15	D
BayesDel_noAF	Uncertain	-0.020
CADD	Pathogenic	28
DANN	Uncertain	0.99
DEOGEN2	Benign	0.36	T
Eigen	Benign	0.10
Eigen_PC	Benign	0.077
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.95	D
M_CAP	Benign	0.038	D
MetaRNN	Pathogenic	0.91	D
MetaSVM	Uncertain	-0.27	T
MutationAssessor	Benign	-0.11	N
PhyloP100		6.9
PrimateAI	Pathogenic	0.80	T
PROVEAN	Uncertain	-4.3	D
REVEL	Uncertain	0.51
Sift	Uncertain	0.0060	D
Sift4G	Uncertain	0.011	D
Polyphen		1.0	D
Vest4		0.70
MutPred		0.52		Gain of MoRF binding (P = 0.0241)
MVP		0.76
MPC		0.49
ClinPred		0.96	D
GERP RS		3.9
Varity_R		0.65
gMVP		0.90
Mutation Taster		=66/34	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.34		Details are displayed if max score is > 0.2
DS_DG_spliceai		0.34		Position offset: 0

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs2228525; hg19: chr10-50680959;