10-102396259-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2 PP2 BP4_Moderate

The NM_001322934.2(NFKB2):c.28G>A(p.Asp10Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. 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. D10G) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 31)
• Consequence: NFKB2 NM_001322934.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.90

Genes affected

NFKB2 (HGNC:7795): (nuclear factor kappa B subunit 2) This gene encodes a subunit of the transcription factor complex nuclear factor-kappa-B (NFkB). The NFkB complex is expressed in numerous cell types and functions as a central activator of genes involved in inflammation and immune function. The protein encoded by this gene can function as both a transcriptional activator or repressor depending on its dimerization partner. The p100 full-length protein is co-translationally processed into a p52 active form. Chromosomal rearrangements and translocations of this locus have been observed in B cell lymphomas, some of which may result in the formation of fusion proteins. There is a pseudogene for this gene on chromosome 18. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2013]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant where missense usually causes diseases, NFKB2
• BP4: Computational evidence support a benign effect (MetaRNN=0.21879345).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NFKB2	NM_001322934.2	c.28G>A	p.Asp10Asn	missense_variant	3/23	ENST00000661543.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NFKB2	ENST00000661543.1	c.28G>A	p.Asp10Asn	missense_variant	3/23		NM_001322934.2	P5

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 31

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Immunodeficiency, common variable, 10 Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Aug 19, 2023

This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 10 of the NFKB2 protein (p.Asp10Asn). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with NFKB2-related conditions. An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.13	T
BayesDel_noAF	Benign	-0.43
Cadd	Benign	22
Dann	Uncertain	0.99
DEOGEN2	Benign	0.068	T;.;T;.;.
Eigen	Benign	-0.042
Eigen_PC	Benign	0.11
FATHMM_MKL	Uncertain	0.84	D
LIST_S2	Benign	0.65	T;T;T;.;.
M_CAP	Benign	0.014	T
MetaRNN	Benign	0.22	T;T;T;T;T
MetaSVM	Benign	-1.0	T
MutationTaster	Benign	0.84	N;N;N;N
PrimateAI	Benign	0.46	T
Sift4G	Pathogenic	0.0	D;T;T;D;T
Polyphen		0.60	.;.;P;.;.
Vest4		0.57, 0.56, 0.58
MutPred		0.33		Loss of sheet (P = 0.0126);Loss of sheet (P = 0.0126);Loss of sheet (P = 0.0126);Loss of sheet (P = 0.0126);Loss of sheet (P = 0.0126);
MVP		0.66
MPC		1.8
ClinPred		0.87	D
GERP RS		4.8
Varity_R		0.13
gMVP		0.94

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		Details are displayed if max score is > 0.2

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

Publications

LitVar

Other links and lift over

dbSNP: rs2061110285; hg19: chr10-104156016;