Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_032291.4(SGIP1):c.40G>A(p.Gly14Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,076 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G14A) has been classified as Uncertain significance.
SGIP1 (HGNC:25412): (SH3GL interacting endocytic adaptor 1) SGIP1 functions as an endocytic protein that affects signaling by receptors in neuronal systems involved in energy homeostasis via its interaction with endophilins (see SH3GL3; MIM 603362) (Trevaskis et al., 2005 [PubMed 15919751] and Uezu et al., 2007 [PubMed 17626015]).[supplied by OMIM, Mar 2008]
Uncertain significance, criteria provided, single submitter
clinical testing
Ambry Genetics
Oct 26, 2021
The c.40G>A (p.G14R) alteration is located in exon 2 (coding exon 2) of the SGIP1 gene. This alteration results from a G to A substitution at nucleotide position 40, causing the glycine (G) at amino acid position 14 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -