Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong
The NM_017915.5(PARPBP):c.346G>T(p.Ala116Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000622 in 1,526,322 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
PARPBP (HGNC:26074): (PARP1 binding protein) Predicted to enable DNA binding activity. Involved in negative regulation of double-strand break repair via homologous recombination. Located in chromatin and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]
Uncertain significance, criteria provided, single submitter
clinical testing
Ambry Genetics
Feb 28, 2024
The c.346G>T (p.A116S) alteration is located in exon 3 (coding exon 2) of the PARPBP gene. This alteration results from a G to T substitution at nucleotide position 346, causing the alanine (A) at amino acid position 116 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -