Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP6_ModerateBS1BS2
The NM_002839.4(PTPRD):c.5534+7_5534+8insACAGTTCAAGAATGGTAAGTAAGTT variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. It is difficult to determine the true allele frequency of this variant because it is of type INS_BIG, and the frequency of such variant types in population databases may be underestimated and unreliable. Variant has been reported in ClinVar as Likely benign (★).
PTPRD (HGNC:9668): (protein tyrosine phosphatase receptor type D) The protein encoded by this gene is a member of the protein tyrosine phosphatase (PTP) family. PTPs are known to be signaling molecules that regulate a variety of cellular processes including cell growth, differentiation, mitotic cycle, and oncogenic transformation. This PTP contains an extracellular region, a single transmembrane segment and two tandem intracytoplasmic catalytic domains, and thus represents a receptor-type PTP. The extracellular region of this protein is composed of three Ig-like and eight fibronectin type III-like domains. Studies of the similar genes in chicken and fly suggest the role of this PTP is in promoting neurite growth, and regulating neurons axon guidance. Multiple alternatively spliced transcript variants of this gene have been reported. A related pseudogene has been identified on chromosome 5. [provided by RefSeq, Jan 2010]
Our verdict: Benign. The variant received -10 ACMG points.
BP6
Variant 9-8331574-A-AAACTTACTTACCATTCTTGAACTGT is Benign according to our data. Variant chr9-8331574-A-AAACTTACTTACCATTCTTGAACTGT is described in ClinVar as [Likely_benign]. Clinvar id is 2504285.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0129 (1966/152024) while in subpopulation AFR AF = 0.0439 (1817/41426). AF 95% confidence interval is 0.0422. There are 42 homozygotes in GnomAd4. There are 909 alleles in the male GnomAd4 subpopulation. Median coverage is 0. This position passed quality control check.