Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_015271.5(TRIM2):c.119T>C(p.Val40Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000372 in 1,613,912 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).
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]
Review Status: criteria provided, single submitter
Collection Method: clinical testing
This variant has not been reported in the literature in individuals affected with TRIM2-related conditions. This sequence change replaces valine, which is neutral and non-polar, with alanine, which is neutral and non-polar, at codon 13 of the TRIM2 protein (p.Val13Ala). This variant is present in population databases (rs773535787, gnomAD 0.0009%). ClinVar contains an entry for this variant (Variation ID: 1429827). 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. -
Gain of catalytic residue at V13 (P = 0.059);Gain of catalytic residue at V13 (P = 0.059);Gain of catalytic residue at V13 (P = 0.059);.;Gain of catalytic residue at V13 (P = 0.059);Gain of catalytic residue at V13 (P = 0.059);Gain of catalytic residue at V13 (P = 0.059);