chr9-8341185-A-G

Position:

• chr9-8341185-A-G

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_Strong BP6_Very_Strong BP7 BS1 BS2

The NM_002839.4(PTPRD):​c.5031T>C​(p.Asn1677=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0025 in 1,613,170 control chromosomes in the GnomAD database, including 92 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.013 (37 hom., cov: 32)
  • Exomes 𝑓: 0.0014 (55 hom.)
• Consequence: PTPRD NM_002839.4 synonymous
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:3
• Conservation: PhyloP100: 2.47

Genes affected

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]

ACMG classification

Verdict is Benign. Variant got -21 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.5).
• BP6: Variant 9-8341185-A-G is Benign according to our data. Variant chr9-8341185-A-G is described in ClinVar as [Benign]. Clinvar id is 782284.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=2.47 with no splicing effect.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.013 (1975/152060) while in subpopulation AFR AF= 0.0442 (1833/41472). AF 95% confidence interval is 0.0425. There are 37 homozygotes in gnomad4. There are 922 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High AC in GnomAd4 at 1975 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PTPRD	NM_002839.4	c.5031T>C	p.Asn1677=	synonymous_variant	41/46	ENST00000381196.9	NP_002830.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PTPRD	ENST00000381196.9	c.5031T>C	p.Asn1677=	synonymous_variant	41/46	5	NM_002839.4	ENSP00000370593	P1

Frequencies

GnomAD3 genomes AF: 0.0130 AC: 1968 AN: 151944 Hom.: 38 Cov.: 32

Gnomad AFR AF: 0.0442

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00735

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000147

Gnomad OTH AF: 0.00910

GnomAD3 exomes AF: 0.00361 AC: 904 AN: 250762 Hom.: 16 AF XY: 0.00268 AC XY: 363 AN XY: 135530

Gnomad AFR exome AF: 0.0472

Gnomad AMR exome AF: 0.00336

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.000163

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000706

Gnomad OTH exome AF: 0.00164

GnomAD4 exome AF: 0.00141 AC: 2054 AN: 1461110 Hom.: 55 Cov.: 30 AF XY: 0.00119 AC XY: 862 AN XY: 726868

Gnomad4 AFR exome AF: 0.0486

Gnomad4 AMR exome AF: 0.00376

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.000104

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000495

Gnomad4 OTH exome AF: 0.00312

GnomAD4 genome AF: 0.0130 AC: 1975 AN: 152060 Hom.: 37 Cov.: 32 AF XY: 0.0124 AC XY: 922 AN XY: 74334

Gnomad4 AFR AF: 0.0442

Gnomad4 AMR AF: 0.00734

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000207

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000147

Gnomad4 OTH AF: 0.00900

Alfa AF: 0.00618 Hom.: 0

Bravo AF: 0.0155

Asia WGS AF: 0.00375 AC: 14 AN: 3478

EpiCase AF: 0.00

EpiControl AF: 0.000237

ClinVar

Significance: Benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:2

Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Dec 31, 2019	- -

PTPRD-related disorder Benign:1

Benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Mar 04, 2019

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.50
CADD	Benign	7.3
DANN	Benign	0.65

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs12351899; hg19: chr9-8341185; COSMIC: COSV61933953;