Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2
The NM_015271.5(TRIM2):c.2197A>G(p.Ile733Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00017 in 1,613,610 control chromosomes in the GnomAD database, including 2 homozygotes. 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 Conflicting classifications of pathogenicity (no stars).
TRIM2 (HGNC:15974): (tripartite motif containing 2) The protein encoded by this gene is a member of the tripartite motif (TRIM) family. The TRIM motif includes three zinc-binding domains, a RING, a B-box type 1 and a B-box type 2, and a coiled-coil region. The protein localizes to cytoplasmic filaments. It plays a neuroprotective role and functions as an E3-ubiquitin ligase in proteasome-mediated degradation of target proteins. Mutations in this gene can cause early-onset axonal neuropathy. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2014]
Computational evidence support a benign effect (MetaRNN=0.06470603).
BP6
Variant 4-153334847-A-G is Benign according to our data. Variant chr4-153334847-A-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 474608.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=2}.
Review Status: criteria provided, single submitter
Collection Method: clinical testing
The c.2197A>G (p.I733V) alteration is located in exon 12 (coding exon 12) of the TRIM2 gene. This alteration results from a A to G substitution at nucleotide position 2197, causing the isoleucine (I) at amino acid position 733 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Charcot-Marie-Tooth disease type 2R Uncertain:1
Jan 01, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing
This sequence change replaces isoleucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 706 of the TRIM2 protein (p.Ile706Val). This variant is present in population databases (rs201921014, gnomAD 0.04%). This variant has not been reported in the literature in individuals affected with TRIM2-related conditions. ClinVar contains an entry for this variant (Variation ID: 474608). 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 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. -
not provided Benign:1
Feb 11, 2019
GeneDx
Significance: Likely benign
Review Status: criteria provided, single submitter