Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2
The NM_020137.5(GRIPAP1):c.1187G>A(p.Arg396Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000652 in 1,146,651 control chromosomes in the GnomAD database, including 1 homozygotes. There are 242 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 12/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
GRIPAP1 (HGNC:18706): (GRIP1 associated protein 1) This gene encodes a guanine nucleotide exchange factor for the Ras family of small G proteins (RasGEF). The encoded protein interacts in a complex with glutamate receptor interacting protein 1 (GRIP1) and plays a role in the regulation of AMPA receptor function. [provided by RefSeq, Aug 2013]
Uncertain significance, criteria provided, single submitter
clinical testing
Ambry Genetics
Mar 14, 2024
The c.1187G>A (p.R396Q) alteration is located in exon 15 (coding exon 15) of the GRIPAP1 gene. This alteration results from a G to A substitution at nucleotide position 1187, causing the arginine (R) at amino acid position 396 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -