rs201186145

Positions:

chr2-219157563-A-G

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBS1_Supporting

The NM_024782.3(NHEJ1):c.299T>C(p.Val100Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000403 in 1,614,230 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000038 ( 0 hom. )

Consequence

NHEJ1
NM_024782.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: -0.400

Variant links:

Genes affected

NHEJ1 (HGNC:25737): (non-homologous end joining factor 1) Double-strand breaks in DNA result from genotoxic stresses and are among the most damaging of DNA lesions. This gene encodes a DNA repair factor essential for the nonhomologous end-joining pathway, which preferentially mediates repair of double-stranded breaks. Mutations in this gene cause different kinds of severe combined immunodeficiency disorders. [provided by RefSeq, Jul 2008]

NHEJ1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.009522557).

BS1

Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.0000656 (10/152340) while in subpopulation EAS AF= 0.00135 (7/5186). AF 95% confidence interval is 0.000633. There are 0 homozygotes in gnomad4. There are 4 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
NHEJ1	NM_024782.3 linkuse as main transcript	c.299T>C	p.Val100Ala	missense_variant	3/8	ENST00000356853.10	NP_079058.1
NHEJ1	NM_001377499.1 linkuse as main transcript	c.299T>C	p.Val100Ala	missense_variant	3/8		NP_001364428.1
NHEJ1	NM_001377498.1 linkuse as main transcript	c.299T>C	p.Val100Ala	missense_variant	3/8		NP_001364427.1
NHEJ1	NR_165304.1 linkuse as main transcript	n.395T>C		non_coding_transcript_exon_variant	3/9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
NHEJ1	ENST00000356853.10 linkuse as main transcript	c.299T>C	p.Val100Ala	missense_variant	3/8	1	NM_024782.3	ENSP00000349313	P4	Q9H9Q4-1

Frequencies

GnomAD3 genomes

AF:

0.0000657

AC:

AN:

152222

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00135

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000957

GnomAD3 exomes

AF:

0.0000676

AC:

AN:

251422

Hom.:

AF XY:

0.0000515

AC XY:

AN XY:

135886

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000815

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000376

AC:

AN:

1461890

Hom.:

Cov.:

AF XY:

0.0000358

AC XY:

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000529

Gnomad4 SAS exome

AF:

0.0000580

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.000480

GnomAD4 genome

AF:

0.0000656

AC:

AN:

152340

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74496

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00135

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000947

Bravo

AF:

0.0000567

ExAC

AF:

0.0000494

AC:

Asia WGS

AF:

0.00115

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Genetic Services Laboratory, University of Chicago

Sep 29, 2016

- -

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 15, 2023

The c.299T>C (p.V100A) alteration is located in exon 3 (coding exon 2) of the NHEJ1 gene. This alteration results from a T to C substitution at nucleotide position 299, causing the valine (V) at amino acid position 100 to be replaced by an alanine (A). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Cernunnos-XLF deficiency

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Oct 03, 2022

This sequence change replaces valine, which is neutral and non-polar, with alanine, which is neutral and non-polar, at codon 100 of the NHEJ1 protein (p.Val100Ala). This variant is present in population databases (rs201186145, gnomAD 0.08%). This variant has not been reported in the literature in individuals affected with NHEJ1-related conditions. ClinVar contains an entry for this variant (Variation ID: 435983). 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 NHEJ1 protein function. 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.082

BayesDel_addAF

Benign

-0.47

BayesDel_noAF

Benign

-0.53

CADD

Benign

0.053

DANN

Benign

0.47

DEOGEN2

Benign

0.067

.;T;.;.

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.5

FATHMM_MKL

Benign

0.029

LIST_S2

Benign

0.45

T;T;T;T

M_CAP

Benign

0.015

MetaRNN

Benign

0.0095

T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.2

L;L;.;.

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.39

PROVEAN

Benign

0.10

N;N;N;N

REVEL

Benign

0.029

Sift

Benign

0.75

T;T;T;T

Sift4G

Benign

0.83

T;T;T;.

Polyphen

0.0

.;B;.;.

Vest4

0.098

MutPred

0.36

Loss of stability (P = 0.0531);Loss of stability (P = 0.0531);.;Loss of stability (P = 0.0531);

MVP

0.23

MPC

0.055

ClinPred

0.0095

GERP RS

-2.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.11

gMVP

0.10

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over