NM_001033855.3:c.403G>A

Variant names:

• chr10-14935524-C-T
• rs786205456
• NM_001033855.3:c.403G>A

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PM1 PM2 PP3_Moderate PP5_Moderate

The NM_001033855.3(DCLRE1C):​c.403G>A​(p.Gly135Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★). Synonymous variant affecting the same amino acid position (i.e. G135G) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 31)
• Consequence: DCLRE1C NM_001033855.3 missense
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:2
• Conservation: PhyloP100: 7.43
• Publications: 3 publications found

Genes affected

DCLRE1C (HGNC:17642): (DNA cross-link repair 1C) This gene encodes a nuclear protein that is involved in V(D)J recombination and DNA repair. The encoded protein has single-strand-specific 5'-3' exonuclease activity; it also exhibits endonuclease activity on 5' and 3' overhangs and hairpins. The protein also functions in the regulation of the cell cycle in response to DNA damage. Mutations in this gene can cause Athabascan-type severe combined immunodeficiency (SCIDA) and Omenn syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2014]

DCLRE1C Gene-Disease associations (from GenCC):

• Omenn syndrome

  Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE, LIMITED Submitted by: G2P, Ambry Genetics, Orphanet
• severe combined immunodeficiency due to DCLRE1C deficiency

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Ambry Genetics, ClinGen

ACMG classification

Our verdict: Likely_pathogenic. The variant received 8 ACMG points.

• PM1: In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 4 uncertain in NM_001033855.3
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.911
• PP5: Variant 10-14935524-C-T is Pathogenic according to our data. Variant chr10-14935524-C-T is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 191000.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001033855.3. 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
	DCLRE1C	NM_001033855.3	MANE Select	c.403G>A	p.Gly135Arg	missense	Exon 6 of 14	NP_001029027.1
	DCLRE1C	NM_001350965.2		c.403G>A	p.Gly135Arg	missense	Exon 6 of 15	NP_001337894.1
	DCLRE1C	NM_001289076.2		c.58G>A	p.Gly20Arg	missense	Exon 4 of 12	NP_001276005.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DCLRE1C	ENST00000378278.7	TSL:1 MANE Select	c.403G>A	p.Gly135Arg	missense	Exon 6 of 14	ENSP00000367527.2
	DCLRE1C	ENST00000378289.8	TSL:1	c.403G>A	p.Gly135Arg	missense	Exon 6 of 14	ENSP00000367538.4
	DCLRE1C	ENST00000357717.6	TSL:1	n.*61G>A		non_coding_transcript_exon	Exon 4 of 12	ENSP00000350349.3

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 31

Alfa AF: 0.00 Hom.: 0

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:2

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Pathogenic:1

Genomic Medicine Center of Excellence, King Faisal Specialist Hospital and Research Centre

Significance: Likely pathogenic

Review Status: flagged submission

Collection Method: research

Severe combined immunodeficiency due to DCLRE1C deficiency Pathogenic:1

Mar 17, 2024

Genomic Medicine Center of Excellence, King Faisal Specialist Hospital and Research Centre

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: research

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.56	D
BayesDel_noAF	Pathogenic	0.57
CADD	Pathogenic	33
DANN	Uncertain	0.99
DEOGEN2	Pathogenic	0.85	D
Eigen	Pathogenic	1.1
Eigen_PC	Pathogenic	0.99
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.99	D
M_CAP	Pathogenic	0.39	D
MetaRNN	Pathogenic	0.91	D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Pathogenic	3.9	H
PhyloP100		7.4
PrimateAI	Pathogenic	0.84	D
PROVEAN	Pathogenic	-7.4	D
REVEL	Pathogenic	0.90
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		1.0
MutPred		0.67		Loss of sheet (P = 0.1158)
MVP		1.0
MPC		0.33
ClinPred		1.0	D
GERP RS		5.7
Varity_R		0.99
gMVP		0.95
Mutation Taster		=0/100	disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs786205456; hg19: chr10-14977523; COSMIC: COSV63186395;