chr20-50582818-C-CG

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BA1

The NM_002827.4(PTPN1):​c.*104dup variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0653 in 1,430,574 control chromosomes in the GnomAD database, including 3,488 homozygotes. Variant has been reported in ClinVar as risk factor (no stars).

Frequency

Genomes: 𝑓 0.050 ( 270 hom., cov: 32)
Exomes 𝑓: 0.067 ( 3218 hom. )

Consequence

PTPN1
NM_002827.4 3_prime_UTR

Scores

Not classified

Clinical Significance

risk factor no assertion criteria provided O:1

Conservation

PhyloP100: -1.70
Variant links:
Genes affected
PTPN1 (HGNC:9642): (protein tyrosine phosphatase non-receptor type 1) The protein encoded by this gene is the founding member of the protein tyrosine phosphatase (PTP) family, which was isolated and identified based on its enzymatic activity and amino acid sequence. PTPs catalyze the hydrolysis of the phosphate monoesters specifically on tyrosine residues. 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. This PTP has been shown to act as a negative regulator of insulin signaling by dephosphorylating the phosphotryosine residues of insulin receptor kinase. This PTP was also reported to dephosphorylate epidermal growth factor receptor kinase, as well as JAK2 and TYK2 kinases, which implicated the role of this PTP in cell growth control, and cell response to interferon stimulation. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2013]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.0742 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PTPN1NM_002827.4 linkuse as main transcriptc.*104dup 3_prime_UTR_variant 10/10 ENST00000371621.5
PTPN1NM_001278618.2 linkuse as main transcriptc.*104dup 3_prime_UTR_variant 9/9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PTPN1ENST00000371621.5 linkuse as main transcriptc.*104dup 3_prime_UTR_variant 10/101 NM_002827.4 P1
PTPN1ENST00000541713.5 linkuse as main transcriptc.*104dup 3_prime_UTR_variant 9/92

Frequencies

GnomAD3 genomes
AF:
0.0501
AC:
7621
AN:
152178
Hom.:
270
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0136
Gnomad AMI
AF:
0.106
Gnomad AMR
AF:
0.0459
Gnomad ASJ
AF:
0.0504
Gnomad EAS
AF:
0.000384
Gnomad SAS
AF:
0.0170
Gnomad FIN
AF:
0.0670
Gnomad MID
AF:
0.0665
Gnomad NFE
AF:
0.0759
Gnomad OTH
AF:
0.0507
GnomAD4 exome
AF:
0.0671
AC:
85831
AN:
1278278
Hom.:
3218
Cov.:
18
AF XY:
0.0658
AC XY:
42034
AN XY:
639138
show subpopulations
Gnomad4 AFR exome
AF:
0.0122
Gnomad4 AMR exome
AF:
0.0302
Gnomad4 ASJ exome
AF:
0.0557
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0201
Gnomad4 FIN exome
AF:
0.0690
Gnomad4 NFE exome
AF:
0.0773
Gnomad4 OTH exome
AF:
0.0612
GnomAD4 genome
AF:
0.0500
AC:
7621
AN:
152296
Hom.:
270
Cov.:
32
AF XY:
0.0498
AC XY:
3706
AN XY:
74474
show subpopulations
Gnomad4 AFR
AF:
0.0136
Gnomad4 AMR
AF:
0.0459
Gnomad4 ASJ
AF:
0.0504
Gnomad4 EAS
AF:
0.000385
Gnomad4 SAS
AF:
0.0172
Gnomad4 FIN
AF:
0.0670
Gnomad4 NFE
AF:
0.0759
Gnomad4 OTH
AF:
0.0507
Alfa
AF:
0.0191
Hom.:
10
Bravo
AF:
0.0468
Asia WGS
AF:
0.0120
AC:
42
AN:
3478

ClinVar

Significance: risk factor
Submissions summary: Other:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Insulin resistance, susceptibility to Other:1
risk factor, no assertion criteria providedliterature onlyOMIMMar 01, 2002- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.11
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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs16989673; hg19: chr20-49199355; API