Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate
The NM_018249.6(CDK5RAP2):āc.5626C>Gā(p.Leu1876Val) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.000000685 in 1,459,446 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/23 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 ).
CDK5RAP2 (HGNC:18672): (CDK5 regulatory subunit associated protein 2) This gene encodes a regulator of CDK5 (cyclin-dependent kinase 5) activity. The protein encoded by this gene is localized to the centrosome and Golgi complex, interacts with CDK5R1 and pericentrin (PCNT), plays a role in centriole engagement and microtubule nucleation, and has been linked to primary microcephaly and Alzheimer's disease. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2013]
Uncertain significance, criteria provided, single submitter
clinical testing
Ambry Genetics
Jan 27, 2021
The c.5626C>G (p.L1876V) alteration is located in exon 38 (coding exon 38) of the CDK5RAP2 gene. This alteration results from a C to G substitution at nucleotide position 5626, causing the leucine (L) at amino acid position 1876 to be replaced by a valine (V). The p.L1876V alteration is predicted to be tolerated by in silico analysis. Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -