rs200013015
Variant summary
Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_Strong
The NM_012452.3(TNFRSF13B):c.58C>T(p.Arg20Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000118 in 1,613,998 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_012452.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -4 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000125 AC: 19AN: 152114Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000716 AC: 18AN: 251286Hom.: 0 AF XY: 0.0000884 AC XY: 12AN XY: 135820
GnomAD4 exome AF: 0.000117 AC: 171AN: 1461766Hom.: 0 Cov.: 32 AF XY: 0.000102 AC XY: 74AN XY: 727196
GnomAD4 genome AF: 0.000125 AC: 19AN: 152232Hom.: 0 Cov.: 32 AF XY: 0.000121 AC XY: 9AN XY: 74434
ClinVar
Submissions by phenotype
not provided Uncertain:3
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The TNFRSF13B c.58C>T; p.Arg20Cys variant (rs200013015) is reported in the literature in individuals affected with primary antibody deficiency, common variable immunodeficiency, or systemic lupus erythematosus, but did not segregate with disease in at least one family (Bisgin 2021, Kakkas 2021, Salzer 2007, Wang 2010). This variant is also reported in ClinVar (Variation ID: 577672), and is found in the general population with an overall allele frequency of 0.0081% (23/282658 alleles) in the Genome Aggregation Database (v2.1.1). Computational analyses are uncertain whether this variant is neutral or deleterious (REVEL: 0.294). Due to limited information, the clinical significance of this variant is uncertain at this time. References: Bisgin A et al. The impact of rare and low-frequency genetic variants in common variable immunodeficiency (CVID). Sci Rep. 2021 Apr 15;11(1):8308. PMID: 33859323. Kakkas I et al. TACI Mutations in Primary Antibody Deficiencies: A Nationwide Study in Greece. Medicina (Kaunas). 2021 Aug 16;57(8):827. PMID: 34441032. Salzer U et al. Sequence analysis of TNFRSF13b, encoding TACI, in patients with systemic lupus erythematosus. J Clin Immunol. 2007 Jul;27(4):372-7. PMID: 17464555. Wang HY et al. A custom 148 gene-based resequencing chip and the SNP explorer software: new tools to study antibody deficiency. Hum Mutat. 2010 Sep;31(9):1080-8. PMID: 20652909. -
not specified Uncertain:1
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Immunodeficiency, common variable, 2 Uncertain:1
This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 20 of the TNFRSF13B protein (p.Arg20Cys). This variant is present in population databases (rs200013015, gnomAD 0.03%). This missense change has been observed in individual(s) with systemic lupus erythematosus (SLE) and hyper-IgM syndrome or common variable immunodeficiency (PMID: 17464555, 20652909, 33859323, 34441032). ClinVar contains an entry for this variant (Variation ID: 577672). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. 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. -
Immunoglobulin A deficiency 2;C3150354:Immunodeficiency, common variable, 2 Uncertain:1
The inherited heterozygous c.58C>T (p.Arg20Cys) missense variant identified in the TNFRSF13B gene has been reported in a patient affected with hyper-IgM syndrome or common variable immunodeficiency [PMID: 20652909], and in another individual affected with systemic lupus erythematosus (but didn't co-segregate with the disease in that family [PMID: 17464555]. This variant has been reported in ClinVar database as a variant of uncertain significance [Variation ID: 577672]. The variant has 0.0001249 allele frequency in the gnomAD database (19 out of 152,114 heterozygous alleles, no homozygotes) indicating it is not a benign polymorphism in the populations represented in that database. The variant affects a weakly conserved reside and in silico tools provide conflicting interpretations about potential pathogenicity of this variant. Due to the lack of compelling evidence for its pathogenicity, the inherited heterozygous c.58C>T (p.Arg20Cys) missense variant identified in the TNFRSF13B gene of this individual is reported as a variant of uncertain significance. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at