chr6-137876122-G-A

Variant names:

• chr6-137876122-G-A
• rs61756235
• NM_001270508.2:c.761G>A

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_Moderate BS2

The NM_001270508.2(TNFAIP3):​c.761G>A​(p.Ser254Asn) variant causes a missense change. The variant allele was found at a frequency of 0.00000479 in 1,461,772 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 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. S254I) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000048 (0 hom.)
• Consequence: TNFAIP3 NM_001270508.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.08
• Publications: 1 publications found

Genes affected

TNFAIP3 (HGNC:11896): (TNF alpha induced protein 3) This gene was identified as a gene whose expression is rapidly induced by the tumor necrosis factor (TNF). The protein encoded by this gene is a zinc finger protein and ubiqitin-editing enzyme, and has been shown to inhibit NF-kappa B activation as well as TNF-mediated apoptosis. The encoded protein, which has both ubiquitin ligase and deubiquitinase activities, is involved in the cytokine-mediated immune and inflammatory responses. Several transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Jul 2012]

TNFAIP3 Gene-Disease associations (from GenCC):

• autoinflammatory syndrome, familial, Behcet-like 1

  Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
• hereditary pediatric Behçet-like disease

  Inheritance: AD Classification: MODERATE, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics
• systemic lupus erythematosus

  Inheritance: Unknown Classification: SUPPORTIVE Submitted by: Orphanet

ENSG00000287393 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -6 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.1697312).
• BS2: High AC in GnomAdExome4 at 7 Unknown,AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TNFAIP3	NM_001270508.2	c.761G>A	p.Ser254Asn	missense_variant	Exon 5 of 9	ENST00000612899.5	NP_001257437.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TNFAIP3	ENST00000612899.5	c.761G>A	p.Ser254Asn	missense_variant	Exon 5 of 9	5	NM_001270508.2	ENSP00000481570.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000479 AC: 7 AN: 1461772 Hom.: 0 Cov.: 32 AF XY: 0.00000275 AC XY: 2 AN XY: 727180

African (AFR) AF: 0.00 AC: 0 AN: 33472

American (AMR) AF: 0.00 AC: 0 AN: 44694

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86238

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000630 AC: 7 AN: 1111956

Other (OTH) AF: 0.00 AC: 0 AN: 60390

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Feb 04, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces serine, which is neutral and polar, with asparagine, which is neutral and polar, at codon 254 of the TNFAIP3 protein (p.Ser254Asn). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with TNFAIP3-related conditions. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt TNFAIP3 protein function with a negative predictive value of 80%. 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	0.12
BayesDel_addAF	Benign	-0.23	T
BayesDel_noAF	Benign	-0.56
CADD	Benign	20
DANN	Uncertain	0.99
DEOGEN2	Benign	0.12	T;T;.;T;T;.
Eigen	Benign	-0.12
Eigen_PC	Benign	0.056
FATHMM_MKL	Uncertain	0.83	D
LIST_S2	Benign	0.78	T;.;T;T;T;T
M_CAP	Benign	0.0058	T
MetaRNN	Benign	0.17	T;T;T;T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.95	L;L;.;.;.;.
PhyloP100		4.1
PrimateAI	Benign	0.48	T
PROVEAN	Benign	-0.57	.;N;.;.;.;.
REVEL	Benign	0.056
Sift	Benign	0.14	.;T;.;.;.;.
Sift4G	Benign	0.24	T;T;T;T;T;T
Polyphen		0.0070	B;B;.;.;.;.
Vest4		0.33
MutPred		0.49		Loss of sheet (P = 0.1398);Loss of sheet (P = 0.1398);Loss of sheet (P = 0.1398);Loss of sheet (P = 0.1398);Loss of sheet (P = 0.1398);Loss of sheet (P = 0.1398);
MVP		0.24
MPC		0.28
ClinPred		0.58	D
GERP RS		4.7
Varity_R		0.20
gMVP		0.56
Mutation Taster		=78/22	polymorphism

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

Other links and lift over

dbSNP: rs61756235; hg19: chr6-138197259; COSMIC: COSV52798522; COSMIC: COSV52798522;