Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4
The NM_001365631.1(CLASP2):c.4141G>C(p.Val1381Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,460,094 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 11/17 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
CLASP2 (HGNC:17078): (cytoplasmic linker associated protein 2) Enables cytoskeletal protein binding activity; dystroglycan binding activity; and protein tyrosine kinase binding activity. Involved in several processes, including microtubule cytoskeleton organization; positive regulation of extracellular matrix organization; and regulation of supramolecular fiber organization. Located in several cellular components, including basal cortex; cortical microtubule plus-end; and ruffle membrane. Colocalizes with focal adhesion; kinetochore; and microtubule cytoskeleton. [provided by Alliance of Genome Resources, Apr 2022]
Review Status: criteria provided, single submitter
Collection Method: clinical testing
The c.4168G>C (p.V1390L) alteration is located in exon 38 (coding exon 38) of the CLASP2 gene. This alteration results from a G to C substitution at nucleotide position 4168, causing the valine (V) at amino acid position 1390 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -