Genetic Variant NBN:c.2185-2085C>A (chr8-89939160-G-T) – ACMG Classification: Benign (-12 pts)

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_StrongBA1

The NM_002485.5(NBN):c.2185-2085C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.299 in 151,882 control chromosomes in the GnomAD database, including 6,881 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 0.30 ( 6881 hom., cov: 31)

Consequence

NBN
NM_002485.5 intron

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.361

Publications

17 publications found

Variant links:

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: G2P, Orphanet, Labcorp Genetics (formerly Invitae), ClinGen, Myriad Women’s Health
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

NBN links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.91).

BA1

GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.367 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NBN	NM_002485.5 link	c.2185-2085C>A		intron_variant	Intron 14 of 15	ENST00000265433.8	NP_002476.2	O60934

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NBN	ENST00000265433.8 link	c.2185-2085C>A		intron_variant	Intron 14 of 15	1	NM_002485.5	ENSP00000265433.4		O60934

Frequencies

GnomAD3 genomes

AF:

0.299

AC:

45413

AN:

151764

Hom.:

6869

Cov.:

show subpopulations

Gnomad AFR

AF:

0.340

Gnomad AMI

AF:

0.218

Gnomad AMR

AF:

0.320

Gnomad ASJ

AF:

0.225

Gnomad EAS

AF:

0.381

Gnomad SAS

AF:

0.286

Gnomad FIN

AF:

0.269

Gnomad MID

AF:

0.245

Gnomad NFE

AF:

0.275

Gnomad OTH

AF:

0.283

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

GnomAD4 genome

AF:

0.299

AC:

45459

AN:

151882

Hom.:

6881

Cov.:

AF XY:

0.300

AC XY:

22282

AN XY:

74240

show subpopulations

African (AFR)

AF:

0.340

AC:

14062

AN:

41400

American (AMR)

AF:

0.320

AC:

4880

AN:

15244

Ashkenazi Jewish (ASJ)

AF:

0.225

AC:

780

AN:

3464

East Asian (EAS)

AF:

0.381

AC:

1965

AN:

5164

South Asian (SAS)

AF:

0.288

AC:

1386

AN:

4808

European-Finnish (FIN)

AF:

0.269

AC:

2841

AN:

10544

Middle Eastern (MID)

AF:

0.257

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.275

AC:

18677

AN:

67942

Other (OTH)

AF:

0.281

AC:

595

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.502

Heterozygous variant carriers

1630

3259

4889

6518

8148

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

466

932

1398

1864

2330

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.282

Hom.:

3533

Bravo

AF:

0.304

Asia WGS

AF:

0.305

AC:

1061

AN:

3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.91

CADD

Benign

2.2

(source)

DANN

Benign

0.76

PhyloP100

-0.36

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Mutation Taster

=100/0

polymorphism (auto)

(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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over