Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2
The NM_032780.4(TMEM25):c.115G>A(p.Glu39Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000276 in 1,450,654 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).
TMEM25 (HGNC:25890): (transmembrane protein 25) Predicted to be involved in negative regulation of excitatory postsynaptic potential and regulation of protein stability. Predicted to be located in late endosome and lysosome. [provided by Alliance of Genome Resources, Apr 2022]
The c.115G>A (p.E39K) alteration is located in exon 3 (coding exon 2) of the TMEM25 gene. This alteration results from a G to A substitution at nucleotide position 115, causing the glutamic acid (E) at amino acid position 39 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -