rs750055952

Variant names:

• chr2-238352934-T-G
• rs750055952
• NM_015650.4:c.1559T>G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_015650.4(TRAF3IP1):​c.1559T>G​(p.Met520Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000412 in 1,457,804 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000041 (0 hom.)
• Consequence: TRAF3IP1 NM_015650.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter P:1 U:1
• Conservation: PhyloP100: 0.842

Genes affected

TRAF3IP1 (HGNC:17861): (TRAF3 interacting protein 1) The protein encoded by this gene interacts with TNF receptor-associated factor 3, tethering it to cytoskeletal microtubules. The encoded protein is also an inhibitor of the innate type I IFN response. Defects in this gene are a cause of Senior-Loken syndrome 9. [provided by RefSeq, Mar 2017]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TRAF3IP1	NM_015650.4	c.1559T>G	p.Met520Arg	missense_variant	Exon 13 of 17	ENST00000373327.5	NP_056465.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TRAF3IP1	ENST00000373327.5	c.1559T>G	p.Met520Arg	missense_variant	Exon 13 of 17	1	NM_015650.4	ENSP00000362424.4
TRAF3IP1	ENST00000391993.7	c.1361T>G	p.Met454Arg	missense_variant	Exon 11 of 15	1		ENSP00000375851.3
TRAF3IP1	ENST00000462122.1	n.570T>G		non_coding_transcript_exon_variant	Exon 4 of 7	3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000816 AC: 2 AN: 245206 Hom.: 0 AF XY: 0.0000151 AC XY: 2 AN XY: 132288

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000606

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000412 AC: 6 AN: 1457804 Hom.: 0 Cov.: 31 AF XY: 0.00000414 AC XY: 3 AN XY: 724982

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.0000458

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000270

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

ExAC AF: 0.00000824 AC: 1

ClinVar

Significance: Uncertain significance

Submissions summary: Pathogenic:1 Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Senior-Loken syndrome 9 Pathogenic:1

Sep 06, 2016

OMIM

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

- -

not provided Uncertain:1

Sep 22, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces methionine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 520 of the TRAF3IP1 protein (p.Met520Arg). This variant is present in population databases (rs750055952, gnomAD 0.006%). This missense change has been observed in individual(s) with Senior-Loken syndrome (PMID: 26487268). ClinVar contains an entry for this variant (Variation ID: 254147). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed for this missense variant. However, the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on TRAF3IP1 protein function. Experimental studies have shown that this missense change affects TRAF3IP1 function (PMID: 26487268). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. 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	0.17
BayesDel_addAF	Benign	-0.25	T
BayesDel_noAF	Benign	-0.42
CADD	Pathogenic	26
DANN	Uncertain	0.97
DEOGEN2	Benign	0.020	.;T
Eigen	Benign	0.050
Eigen_PC	Benign	-0.038
FATHMM_MKL	Benign	0.66	D
LIST_S2	Benign	0.82	T;T
M_CAP	Benign	0.0076	T
MetaRNN	Uncertain	0.43	T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Uncertain	2.7	.;M
PrimateAI	Benign	0.43	T
PROVEAN	Benign	-2.0	N;N
REVEL	Benign	0.16
Sift	Benign	0.12	T;T
Sift4G	Benign	0.51	T;T
Polyphen		0.98	D;D
Vest4		0.52
MutPred		0.45		.;Gain of solvent accessibility (P = 0.0068);
MVP		0.36
MPC		0.66
ClinPred		0.80	D
GERP RS		3.7
Varity_R		0.45
gMVP		0.29

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.98		Details are displayed if max score is > 0.2
DS_DG_spliceai		0.98		Position offset: 0

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

Publications

LitVar

Other links and lift over

dbSNP: rs750055952; hg19: chr2-239261575;