Genetic Variant NM_002485.5:c.913A>G (chr8-89964491-T-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_002485.5(NBN):c.913A>G(p.Ile305Val) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I305T) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

NBN
NM_002485.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 5.02

Publications

0 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: 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.

PM2

Very rare variant in population databases, with high coverage;

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.913A>G	p.Ile305Val	missense	Exon 8 of 16	NP_002476.2
NBN	NM_001024688.3		c.667A>G	p.Ile223Val	missense	Exon 9 of 17	NP_001019859.1	A0A0C4DG07
NBN	NM_001440379.1		c.667A>G	p.Ile223Val	missense	Exon 8 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.913A>G	p.Ile305Val	missense	Exon 8 of 16	ENSP00000265433.4	O60934
NBN	ENST00000697309.1		c.913A>G	p.Ile305Val	missense	Exon 8 of 15	ENSP00000513244.1	A0A8V8TKY5
NBN	ENST00000697293.1		c.913A>G	p.Ile305Val	missense	Exon 8 of 17	ENSP00000513230.1	A0A8V8TM80

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1449468

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

721920

African (AFR)

AF:

0.00

AC:

AN:

33164

American (AMR)

AF:

0.00

AC:

AN:

44704

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26048

East Asian (EAS)

AF:

0.00

AC:

AN:

39568

South Asian (SAS)

AF:

0.00

AC:

AN:

86012

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53360

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5744

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1100908

Other (OTH)

AF:

0.00

AC:

AN:

59960

GnomAD4 genome

Cov.:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Aplastic anemia (1)

Hereditary breast ovarian cancer syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Uncertain

0.094

BayesDel_noAF

Benign

-0.10

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.13

Eigen

Uncertain

0.53

Eigen_PC

Uncertain

0.56

FATHMM_MKL

Uncertain

0.91

LIST_S2

Benign

0.84

M_CAP

Benign

0.068

MetaRNN

Uncertain

0.57

MetaSVM

Uncertain

-0.18

MutationAssessor

Uncertain

2.8

PhyloP100

5.0

PrimateAI

Uncertain

0.50

PROVEAN

Benign

-0.83

REVEL

Uncertain

0.34

Sift

Uncertain

0.0070

Sift4G

Uncertain

0.022

Polyphen

0.86

Vest4

0.64

MutPred

0.44

Gain of relative solvent accessibility (P = 0.1259)

MVP

0.78

MPC

0.19

ClinPred

0.95

GERP RS

5.5

Varity_R

0.26

gMVP

0.48

Mutation Taster

=56/44

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over