chr8-89928672-A-T

Variant names:

• chr8-89928672-A-T
• rs1881469
• ENST00000697292.1:c.*39-3331T>A

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The ENST00000697292.1(NBN):​c.*39-3331T>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.51 in 151,980 control chromosomes in the GnomAD database, including 21,986 homozygotes. 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: 𝑓 0.51 (21986 hom., cov: 31)
• Consequence: NBN ENST00000697292.1 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.631
• Publications: 9 publications found

Genes affected

NBN (HGNC:7652): (nibrin) Mutations in this gene are associated with Nijmegen breakage syndrome, an autosomal recessive chromosomal instability syndrome characterized by microcephaly, growth retardation, immunodeficiency, and cancer predisposition. The encoded protein is a member of the MRE11/RAD50 double-strand break repair complex which consists of 5 proteins. This gene product is thought to be involved in DNA double-strand break repair and DNA damage-induced checkpoint activation. [provided by RefSeq, Jul 2008]

NBN Gene-Disease associations (from GenCC):

• Nijmegen breakage syndrome

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Myriad Women’s Health, G2P, Orphanet, ClinGen
• rhabdomyosarcoma

  Inheritance: AR Classification: MODERATE Submitted by: Genomics England PanelApp
• idiopathic aplastic anemia

  Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)
• prostate cancer

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
• hereditary breast carcinoma

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.96).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.758 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000697292.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
There are no transcript annotations for this variant.

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NBN	ENST00000697292.1		c.*39-3331T>A		intron	N/A	ENSP00000513229.1	O60934

Frequencies

GnomAD3 genomes AF: 0.510 AC: 77438 AN: 151864 Hom.: 21924 Cov.: 31

Gnomad AFR AF: 0.765

Gnomad AMI AF: 0.385

Gnomad AMR AF: 0.502

Gnomad ASJ AF: 0.307

Gnomad EAS AF: 0.642

Gnomad SAS AF: 0.498

Gnomad FIN AF: 0.363

Gnomad MID AF: 0.339

Gnomad NFE AF: 0.383

Gnomad OTH AF: 0.490

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.510 AC: 77577 AN: 151980 Hom.: 21986 Cov.: 31 AF XY: 0.509 AC XY: 37789 AN XY: 74268

African (AFR) AF: 0.766 AC: 31743 AN: 41466

American (AMR) AF: 0.502 AC: 7670 AN: 15268

Ashkenazi Jewish (ASJ) AF: 0.307 AC: 1065 AN: 3470

East Asian (EAS) AF: 0.642 AC: 3310 AN: 5156

South Asian (SAS) AF: 0.501 AC: 2414 AN: 4820

European-Finnish (FIN) AF: 0.363 AC: 3819 AN: 10534

Middle Eastern (MID) AF: 0.350 AC: 103 AN: 294

European-Non Finnish (NFE) AF: 0.383 AC: 26058 AN: 67950

Other (OTH) AF: 0.495 AC: 1045 AN: 2112

Alfa AF: 0.462 Hom.: 2224

Bravo AF: 0.530

Asia WGS AF: 0.599 AC: 2084 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.96
CADD	Benign	0.50
DANN	Benign	0.37
PhyloP100		-0.63

Splicing

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

Other links and lift over

dbSNP: rs1881469; hg19: chr8-90940900;