18-12809341-A-G

Position:

• chr18-12809341-A-G

Variant summary

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

The NM_002828.4(PTPN2):​c.858+4862T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.124 in 152,242 control chromosomes in the GnomAD database, including 1,411 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 0.12 (1411 hom., cov: 32)
• Consequence: PTPN2 NM_002828.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.647

Genes affected

PTPN2 (HGNC:9650): (protein tyrosine phosphatase non-receptor type 2) The protein encoded by this gene is a member of the protein tyrosine phosphatase (PTP) family. Members of the PTP family share a highly conserved catalytic motif, which is essential for the catalytic activity. PTPs are known to be signaling molecules that regulate a variety of cellular processes including cell growth, differentiation, mitotic cycle, and oncogenic transformation. Epidermal growth factor receptor and the adaptor protein Shc were reported to be substrates of this PTP, which suggested the roles in growth factor mediated cell signaling. Multiple alternatively spliced transcript variants encoding different isoforms have been found. Two highly related but distinctly processed pseudogenes that localize to chromosomes 1 and 13, respectively, have been reported. [provided by RefSeq, May 2011]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.77).
• BA1: GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.179 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PTPN2	NM_002828.4	c.858+4862T>C		intron_variant		ENST00000309660.10	NP_002819.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PTPN2	ENST00000309660.10	c.858+4862T>C		intron_variant		1	NM_002828.4	ENSP00000311857	A1

Frequencies

GnomAD3 genomes AF: 0.125 AC: 18947 AN: 152124 Hom.: 1410 Cov.: 32

Gnomad AFR AF: 0.0580

Gnomad AMI AF: 0.0461

Gnomad AMR AF: 0.0966

Gnomad ASJ AF: 0.0969

Gnomad EAS AF: 0.171

Gnomad SAS AF: 0.189

Gnomad FIN AF: 0.151

Gnomad MID AF: 0.120

Gnomad NFE AF: 0.162

Gnomad OTH AF: 0.117

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

GnomAD4 genome AF: 0.124 AC: 18946 AN: 152242 Hom.: 1411 Cov.: 32 AF XY: 0.126 AC XY: 9389 AN XY: 74432

Gnomad4 AFR AF: 0.0579

Gnomad4 AMR AF: 0.0965

Gnomad4 ASJ AF: 0.0969

Gnomad4 EAS AF: 0.172

Gnomad4 SAS AF: 0.189

Gnomad4 FIN AF: 0.151

Gnomad4 NFE AF: 0.162

Gnomad4 OTH AF: 0.115

Alfa AF: 0.152 Hom.: 4277

Bravo AF: 0.116

Asia WGS AF: 0.177 AC: 616 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.77
CADD	Benign	1.0
DANN	Benign	0.86

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: rs1893217; hg19: chr18-12809340;