2-219076555-G-T

Variant names:

• chr2-219076555-G-T
• rs73991015
• NM_024782.3:c.826-100C>A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_024782.3(NHEJ1):​c.826-100C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 30)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: NHEJ1 NM_024782.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0920
• Publications: 0 publications found

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 Gene-Disease associations (from GenCC):

• Cernunnos-XLF deficiency

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

ENSG00000280537 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.85).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NHEJ1	NM_024782.3	c.826-100C>A		intron_variant	Intron 7 of 7	ENST00000356853.10	NP_079058.1
NHEJ1	NM_001377499.1	c.841-100C>A		intron_variant	Intron 7 of 7		NP_001364428.1
NHEJ1	NM_001377498.1	c.826-100C>A		intron_variant	Intron 7 of 7		NP_001364427.1
NHEJ1	NR_165304.1	n.1004-100C>A		intron_variant	Intron 8 of 8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NHEJ1	ENST00000356853.10	c.826-100C>A		intron_variant	Intron 7 of 7	1	NM_024782.3	ENSP00000349313.5
ENSG00000280537	ENST00000318673.6	n.*1948-100C>A		intron_variant	Intron 16 of 16	2		ENSP00000320919.3

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 608316 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 320950

African (AFR) AF: 0.00 AC: 0 AN: 14538

American (AMR) AF: 0.00 AC: 0 AN: 21574

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 16428

East Asian (EAS) AF: 0.00 AC: 0 AN: 30134

South Asian (SAS) AF: 0.00 AC: 0 AN: 53814

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 29098

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 2396

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 409726

Other (OTH) AF: 0.00 AC: 0 AN: 30608

GnomAD4 genome Cov.: 30

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.85
CADD	Benign	0.50
DANN	Benign	0.69
PhyloP100		-0.092

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: rs73991015; hg19: chr2-219941277;