Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP6_ModerateBA1
The NM_002839.4(PTPRD):c.5534+7_5534+8insAGTTACAGTTCAAGAATGGTAAGTT variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0451 in 1,606,216 control chromosomes in the GnomAD database, including 2,441 homozygotes. 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 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-AAACTTACCATTCTTGAACTGTAACT is Benign according to our data. Variant chr9-8331574-A-AAACTTACCATTCTTGAACTGTAACT is described in ClinVar as [Benign]. Clinvar id is 227045.Status of the report is criteria_provided_single_submitter, 1 stars.
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.146 is higher than 0.05.
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing
c.5534+7_5534+8ins25 in intron 44 of PTPRD: This variant is not expected to have clinical significance because it has been identified in 15% (2409/16470) South Asian chromosomes, including 184 homozygotes, by the Exome Aggregation Consortiu m Sequencing Project (http://exac.broadinstitute.org/variant/9-8331574-A-AAACTTA CCATTCTTGAACTGTAACT; dbSNP rs3215098). -