Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong
The NM_001001974.4(PLEKHA1):āc.898T>Gā(p.Ser300Ala) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000155 in 1,612,756 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 ).
PLEKHA1 (HGNC:14335): (pleckstrin homology domain containing A1) This gene encodes a pleckstrin homology domain-containing adapter protein. The encoded protein is localized to the plasma membrane where it specifically binds phosphatidylinositol 3,4-bisphosphate. This protein may be involved in the formation of signaling complexes in the plasma membrane. Polymorphisms in this gene are associated with age-related macular degeneration. Alternate splicing results in multiple transcript variants. A pseudogene of this gene is found on chromosome 5.[provided by RefSeq, Sep 2010]
Uncertain significance, criteria provided, single submitter
clinical testing
Ambry Genetics
Nov 27, 2023
The c.898T>G (p.S300A) alteration is located in exon 11 (coding exon 10) of the PLEKHA1 gene. This alteration results from a T to G substitution at nucleotide position 898, causing the serine (S) at amino acid position 300 to be replaced by an alanine (A). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -