8-89980758-C-T

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM5

The NM_002485.5(NBN):c.456G>A(p.Met152Ile) variant causes a missense change. The variant allele was found at a frequency of 0.000234 in 1,612,958 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Likely benign in ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M152V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00024 ( 0 hom. )

Consequence

NBN
NM_002485.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:15B:3O:2

Conservation

PhyloP100: 6.00

Publications

9 publications found

Variant links:

COSMIC-nc: COSV104545422

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

NBN links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM5

Other missense variant is known to change same aminoacid residue: Variant chr8-89980759-A-G is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 2445333.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002485.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
NBN	NM_002485.5	MANE Select	c.456G>A	p.Met152Ile	missense	Exon 4 of 16	NP_002476.2
NBN	NM_001024688.3		c.210G>A	p.Met70Ile	missense	Exon 5 of 17	NP_001019859.1	A0A0C4DG07
NBN	NM_001440379.1		c.210G>A	p.Met70Ile	missense	Exon 4 of 16	NP_001427308.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
NBN	ENST00000265433.8	TSL:1 MANE Select	c.456G>A	p.Met152Ile	missense	Exon 4 of 16	ENSP00000265433.4	O60934
NBN	ENST00000697309.1		c.456G>A	p.Met152Ile	missense	Exon 4 of 15	ENSP00000513244.1	A0A8V8TKY5
NBN	ENST00000697293.1		c.456G>A	p.Met152Ile	missense	Exon 4 of 17	ENSP00000513230.1	A0A8V8TM80

Frequencies

GnomAD3 genomes

AF:

0.000145

AC:

AN:

152000

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000484

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000265

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000115

AC:

AN:

251220

AF XY:

0.000118

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.0000579

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000464

Gnomad NFE exome

AF:

0.000194

Gnomad OTH exome

AF:

0.000490

GnomAD4 exome

AF:

0.000244

AC:

356

AN:

1460840

Hom.:

Cov.:

AF XY:

0.000256

AC XY:

186

AN XY:

726810

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33436

American (AMR)

AF:

0.0000671

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26122

East Asian (EAS)

AF:

0.00

AC:

AN:

39602

South Asian (SAS)

AF:

0.00

AC:

AN:

86236

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53326

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5758

European-Non Finnish (NFE)

AF:

0.000301

AC:

335

AN:

1111278

Other (OTH)

AF:

0.000282

AC:

AN:

60366

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.467

Heterozygous variant carriers

101

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000145

AC:

AN:

152118

Hom.:

Cov.:

AF XY:

0.000161

AC XY:

AN XY:

74360

show subpopulations

African (AFR)

AF:

0.0000482

AC:

AN:

41484

American (AMR)

AF:

0.000131

AC:

AN:

15294

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5168

South Asian (SAS)

AF:

0.00

AC:

AN:

4814

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10586

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000265

AC:

AN:

67986

Other (OTH)

AF:

0.00

AC:

AN:

2108

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.530

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.000230

Hom.:

Bravo

AF:

0.000162

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000124

AC:

EpiCase

AF:

0.000218

EpiControl

AF:

0.000356

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Microcephaly, normal intelligence and immunodeficiency (6)

Hereditary cancer-predisposing syndrome (4)

not provided (6)

Aplastic anemia (1)

Aplastic anemia;C0023449:Acute lymphoid leukemia;C0398791:Microcephaly, normal intelligence and immunodeficiency (1)

Malignant tumor of breast (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.96

BayesDel_addAF

Pathogenic

0.18

BayesDel_noAF

Pathogenic

0.31

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.41

Eigen

Pathogenic

0.87

Eigen_PC

Pathogenic

0.83

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.95

M_CAP

Uncertain

0.088

MetaRNN

Uncertain

0.66

MetaSVM

Uncertain

0.46

MutationAssessor

Pathogenic

2.9

PhyloP100

6.0

PrimateAI

Uncertain

0.58

PROVEAN

Uncertain

-3.3

REVEL

Uncertain

0.48

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.83

MutPred

0.77

Gain of sheet (P = 0.0827)

MVP

0.94

MPC

0.38

ClinPred

0.69

GERP RS

5.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.78

gMVP

0.75

Mutation Taster

=71/29

polymorphism

(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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over