Genetic Variant NRBF2:p.Asn260Lys (chr10-63154134-T-G) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_030759.5(NRBF2):c.780T>G(p.Asn260Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000062 in 1,613,730 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

NRBF2
NM_030759.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.161

Variant links:

Genes affected

NRBF2 (HGNC:19692): (nuclear receptor binding factor 2) Involved in autophagy. Located in cytoplasm. Colocalizes with phosphatidylinositol 3-kinase complex, class III. [provided by Alliance of Genome Resources, Apr 2022]

NRBF2 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.31565496).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NRBF2	NM_030759.5 link	c.780T>G	p.Asn260Lys	missense_variant	Exon 4 of 4	ENST00000277746.11	NP_110386.2	Q96F24-1
NRBF2	NM_001282405.2 link	c.750T>G	p.Asn250Lys	missense_variant	Exon 3 of 3		NP_001269334.1	Q96F24-3
NRBF2	XM_047425132.1 link	c.648T>G	p.Asn216Lys	missense_variant	Exon 3 of 3		XP_047281088.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NRBF2	ENST00000277746.11 link	c.780T>G	p.Asn260Lys	missense_variant	Exon 4 of 4	1	NM_030759.5	ENSP00000277746.6		Q96F24-1
NRBF2	ENST00000435510.6 link	c.750T>G	p.Asn250Lys	missense_variant	Exon 3 of 3	2		ENSP00000397502.2		Q96F24-3

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152192

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000803

AC:

AN:

248978

AF XY:

0.0000148

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000178

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000547

AC:

AN:

1461538

Hom.:

Cov.:

AF XY:

0.00000825

AC XY:

AN XY:

727088

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33468

American (AMR)

AF:

0.00

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26126

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86246

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53390

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5760

European-Non Finnish (NFE)

AF:

0.00000720

AC:

AN:

1111760

Other (OTH)

AF:

0.00

AC:

AN:

60374

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152192

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74370

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41444

American (AMR)

AF:

0.00

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68030

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000329

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 07, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.780T>G (p.N260K) alteration is located in exon 4 (coding exon 4) of the NRBF2 gene. This alteration results from a T to G substitution at nucleotide position 780, causing the asparagine (N) at amino acid position 260 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.67

BayesDel_addAF

Pathogenic

0.19

BayesDel_noAF

Benign

-0.44

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.065

.;T

Eigen

Benign

-0.11

Eigen_PC

Benign

-0.16

FATHMM_MKL

Benign

0.61

LIST_S2

Uncertain

0.88

D;D

M_CAP

Benign

0.019

MetaRNN

Benign

0.32

T;T

MetaSVM

Benign

-0.74

MutationAssessor

Uncertain

2.1

.;M

PhyloP100

-0.16

PrimateAI

Benign

0.41

PROVEAN

Uncertain

-2.9

D;N

REVEL

Benign

0.17

Sift

Uncertain

0.010

D;T

Sift4G

Benign

0.083

T;T

Polyphen

0.63

.;P

Vest4

0.39

MutPred

0.62

.;Gain of methylation at N260 (P = 9e-04);

MVP

0.82

MPC

0.43

ClinPred

0.95

GERP RS

-2.1

Varity_R

0.17

gMVP

0.10

Mutation Taster

=82/18

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

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chr10-63154134-T-G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over