chr10-14945157-G-A

Variant names:

Variant summary

Our verdict is Pathogenic. The variant received 11 ACMG points: 11P and 0B. PP4_ModeratePM2_SupportingPP1_StrongPM3_Strong

This summary comes from the ClinGen Evidence Repository: The c.194C>T(NM_001033855.3) variant in DCLRE1C is a missense variant predicted to cause substitution of Threonine by Isoleucine at amino acid 65 p.Thr65Ile.This variant is absent from gnomAD v2.1.1 (PM2_Supporting).This variant has been detected in at least 13 individuals with SCID/Lealy SCID/Omen. Of those individuals, 2 were compound heterozygous for the variant p.T577Nfs*21 (Likely Pathogenic according to the SCID VCEP specifications - confirmed in trans by family testing (PMID:26476407, 2 pts). 10 individuals were homozygous for the variant (1 point limit was reached - PMID:26476407) (PM3_moderate); For 1 individual (PMID:25917813), the second allele information wasn't available. The variant has been reported to segregate with SCID in 7 affected family members from 3 families (Family A: Proband + 4; Family D: Proband + 2; Family E: Proband + 1 = 7 segregations, LOD: 4.21); PP1_Strong; PMID:26476407). At least one patient with this variant displayed Vector-based complementation corrected increased cellular radiosensitivity and/or decreased V(D)J recombination (P1, 2 and 5, 2 pts, PMID:26476407, PP4_moderate).In summary, this variant meets the criteria to be classified as pathogenic for autosomal recessive SCID based on the ACMG/AMP criteria applied, PP4_Moderate, PP1_Strong, PM3_Strong, PM2_Supporting, as specified by the ClinGen SCID VCEP (VCEP specifications version 1). LINK:https://erepo.genome.network/evrepo/ui/classification/CA10586373/MONDO:0011225/116

Frequency

Genomes: not found (cov: 30)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

DCLRE1C
NM_001033855.3 missense

Scores

Clinical Significance

Pathogenic reviewed by expert panel P:3

Conservation

PhyloP100: 6.51

Publications

6 publications found

Variant links:

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

DCLRE1C links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 11 ACMG points.

PM2

For more information check the summary or visit ClinGen Evidence Repository.

PM3

For more information check the summary or visit ClinGen Evidence Repository.

PP1

For more information check the summary or visit ClinGen Evidence Repository.

PP4

For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DCLRE1C	NM_001033855.3 link	c.194C>T	p.Thr65Ile	missense_variant	Exon 3 of 14	ENST00000378278.7	NP_001029027.1	Q96SD1-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DCLRE1C	ENST00000378278.7 link	c.194C>T	p.Thr65Ile	missense_variant	Exon 3 of 14	1	NM_001033855.3	ENSP00000367527.2		Q96SD1-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00

AC:

AN:

251234

AF XY:

0.00

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

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:

0.00

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1460858

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726682

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33452

American (AMR)

AF:

0.00

AC:

AN:

44698

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26100

East Asian (EAS)

AF:

0.00

AC:

AN:

39632

South Asian (SAS)

AF:

0.00

AC:

AN:

86004

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53320

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5738

European-Non Finnish (NFE)

AF:

9.00e-7

AC:

AN:

1111588

Other (OTH)

AF:

0.00

AC:

AN:

60326

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:3

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

Severe combined immunodeficiency due to DCLRE1C deficiency

Pathogenic:3

Sep 03, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

For these reasons, this variant has been classified as Pathogenic. Experimental studies are conflicting or provide insufficient evidence to determine the effect of this variant on DCLRE1C function (PMID: 25917813). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt DCLRE1C protein function. ClinVar contains an entry for this variant (Variation ID: 254217). This missense change has been observed in individual(s) with clinical features of severe combined immunodeficiency (PMID: 25917813, 26476407, 27577878). It has also been observed to segregate with disease in related individuals. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces threonine, which is neutral and polar, with isoleucine, which is neutral and non-polar, at codon 65 of the DCLRE1C protein (p.Thr65Ile). -

Nov 14, 2023

ClinGen Severe Combined Immunodeficiency Variant Curation Expert Panel, ClinGen

Significance:Pathogenic

Review Status:reviewed by expert panel

Collection Method:curation

The c.194C>T(NM_001033855.3) variant in DCLRE1C is a missense variant predicted to cause substitution of Threonine by Isoleucine at amino acid 65 p.Thr65Ile. This variant is absent from gnomAD v2.1.1 (PM2_Supporting). This variant has been detected in at least 13 individuals with SCID/Lealy SCID/Omen. Of those individuals, 2 were compound heterozygous for the variant p.T577Nfs*21 (Likely Pathogenic according to the SCID VCEP specifications - confirmed in trans by family testing (PMID: 26476407, 2 pts). 10 individuals were homozygous for the variant (1 point limit was reached - PMID: 26476407) (PM3_moderate); For 1 individual (PMID: 25917813), the second allele information wasn't available. The variant has been reported to segregate with SCID in 7 affected family members from 3 families (Family A: Proband + 4; Family D: Proband + 2; Family E: Proband + 1 = 7 segregations, LOD: 4.21); PP1_Strong; PMID: 26476407). At least one patient with this variant displayed Vector-based complementation corrected increased cellular radiosensitivity and/or decreased V(D)J recombination (P1, 2 and 5, 2 pts, PMID:26476407, PP4_moderate). In summary, this variant meets the criteria to be classified as pathogenic for autosomal recessive SCID based on the ACMG/AMP criteria applied, PP4_Moderate, PP1_Strong, PM3_Strong, PM2_Supporting, as specified by the ClinGen SCID VCEP (VCEP specifications version 1). -

Sep 14, 2016

OMIM

Significance:Pathogenic

Review Status:no assertion criteria provided

Collection Method:literature only

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

1.0

BayesDel_addAF

Pathogenic

0.42

BayesDel_noAF

Pathogenic

0.37

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Pathogenic

0.84

.;D

Eigen

Pathogenic

0.92

Eigen_PC

Pathogenic

0.84

FATHMM_MKL

Uncertain

0.92

LIST_S2

Uncertain

0.94

D;D

M_CAP

Uncertain

0.25

MetaRNN

Pathogenic

0.92

D;D

MetaSVM

Pathogenic

0.80

MutationAssessor

Pathogenic

3.8

H;H

PhyloP100

6.5

PrimateAI

Uncertain

0.72

PROVEAN

Pathogenic

-4.8

D;D

REVEL

Pathogenic

0.92

Sift

Uncertain

0.0010

D;D

Sift4G

Pathogenic

0.0010

D;D

Polyphen

1.0

D;D

Vest4

0.93

MutPred

0.74

Gain of helix (P = 0.062);Gain of helix (P = 0.062);

MVP

0.98

MPC

0.31

ClinPred

0.99

GERP RS

5.2

Varity_R

0.97

gMVP

0.91

Mutation Taster

=197/103

disease causing (ClinVar)

(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

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over