Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2
The NM_005460.4(SNCAIP):āc.122A>Gā(p.Asp41Gly) variant causes a missense change. The variant allele was found at a frequency of 0.0000533 in 1,613,228 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā ).
SNCAIP (HGNC:11139): (synuclein alpha interacting protein) This gene encodes a protein containing several protein-protein interaction domains, including ankyrin-like repeats, a coiled-coil domain, and an ATP/GTP-binding motif. The encoded protein interacts with alpha-synuclein in neuronal tissue and may play a role in the formation of cytoplasmic inclusions and neurodegeneration. A mutation in this gene has been associated with Parkinson's disease. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2015]
Review Status: criteria provided, single submitter
Collection Method: clinical testing
The c.122A>G (p.D41G) alteration is located in exon 3 (coding exon 2) of the SNCAIP gene. This alteration results from a A to G substitution at nucleotide position 122, causing the aspartic acid (D) at amino acid position 41 to be replaced by a glycine (G). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -