Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2
The NM_001387552.1(ADGRL3):āc.1781T>Cā(p.Ile594Thr) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000727 in 1,513,756 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (ā ).
ADGRL3 (HGNC:20974): (adhesion G protein-coupled receptor L3) This gene encodes a member of the latrophilin subfamily of G-protein coupled receptors (GPCR). Latrophilins may function in both cell adhesion and signal transduction. In experiments with non-human species, endogenous proteolytic cleavage within a cysteine-rich GPS (G-protein-coupled-receptor proteolysis site) domain resulted in two subunits (a large extracellular N-terminal cell adhesion subunit and a subunit with substantial similarity to the secretin/calcitonin family of GPCRs) being non-covalently bound at the cell membrane. [provided by RefSeq, Jul 2008]
Uncertain significance, criteria provided, single submitter
clinical testing
Ambry Genetics
Oct 05, 2021
The c.1577T>C (p.I526T) alteration is located in exon 7 (coding exon 7) of the ADGRL3 gene. This alteration results from a T to C substitution at nucleotide position 1577, causing the isoleucine (I) at amino acid position 526 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -