rs1638742

Positions:

• chr7-157745860-T-C

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_002847.5(PTPRN2):​c.1789-62923A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.114 in 152,112 control chromosomes in the GnomAD database, including 1,204 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.11 (1204 hom., cov: 33)
• Consequence: PTPRN2 NM_002847.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.06

Genes affected

PTPRN2 (HGNC:9677): (protein tyrosine phosphatase receptor type N2) This gene encodes a protein with sequence similarity to receptor-like protein tyrosine phosphatases. However, tyrosine phosphatase activity has not been experimentally validated for this protein. Studies of the rat ortholog suggest that the encoded protein may instead function as a phosphatidylinositol phosphatase with the ability to dephosphorylate phosphatidylinositol 3-phosphate and phosphatidylinositol 4,5-diphosphate, and this function may be involved in the regulation of insulin secretion. This protein has been identified as an autoantigen in insulin-dependent diabetes mellitus. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2015]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.99).
• BA1: GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.202 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PTPRN2	NM_002847.5	c.1789-62923A>G		intron_variant		ENST00000389418.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PTPRN2	ENST00000389418.9	c.1789-62923A>G		intron_variant		1	NM_002847.5	P2
PTPRN2	ENST00000389413.7	c.1702-62923A>G		intron_variant		1
PTPRN2	ENST00000389416.8	c.1738-62923A>G		intron_variant		1		A2
PTPRN2	ENST00000409483.5	c.1675-62923A>G		intron_variant		2

Frequencies

GnomAD3 genomes AF: 0.114 AC: 17330 AN: 151994 Hom.: 1189 Cov.: 33

Gnomad AFR AF: 0.141

Gnomad AMI AF: 0.0592

Gnomad AMR AF: 0.207

Gnomad ASJ AF: 0.115

Gnomad EAS AF: 0.162

Gnomad SAS AF: 0.133

Gnomad FIN AF: 0.0758

Gnomad MID AF: 0.104

Gnomad NFE AF: 0.0779

Gnomad OTH AF: 0.121

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.114 AC: 17372 AN: 152112 Hom.: 1204 Cov.: 33 AF XY: 0.117 AC XY: 8690 AN XY: 74380

Gnomad4 AFR AF: 0.142

Gnomad4 AMR AF: 0.208

Gnomad4 ASJ AF: 0.115

Gnomad4 EAS AF: 0.161

Gnomad4 SAS AF: 0.135

Gnomad4 FIN AF: 0.0758

Gnomad4 NFE AF: 0.0779

Gnomad4 OTH AF: 0.119

Alfa AF: 0.0978 Hom.: 1264

Bravo AF: 0.128

Asia WGS AF: 0.135 AC: 469 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.99
CADD	Benign	0.81
DANN	Benign	0.14

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		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: rs1638742; hg19: chr7-157538552;