10-87965283-C-G

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received -1 ACMG points: 0P and 1B. BP4

This summary comes from the ClinGen Evidence Repository: PTEN c.1027-4C>G (IVS8-4C>G) is currently classified as a variant of uncertain significance for PTEN Hamartoma Tumor syndrome in an autosomal dominant manner using modified ACMG criteria (ACMG Classification Rules Specified for PTEN Variant Curation version 3.0.0). Please see a summary of the rules and criteria codes in the “PTEN ACMG Specifications Summary” document (assertion method column).BP4: Intronic variant where at least 2 out of 3 in silico models predict no splicing impact. LINK:https://erepo.genome.network/evrepo/ui/classification/CA000260/MONDO:0017623/003

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

PTEN
NM_000314.8 splice_region, intron

Scores

Splicing: ADA: 0.0002865

Clinical Significance

Uncertain significance reviewed by expert panel U:4B:2

Conservation

PhyloP100: 0.163

Publications

1 publications found

Variant links:

Genes affected

PTEN (HGNC:9588): (phosphatase and tensin homolog) This gene was identified as a tumor suppressor that is mutated in a large number of cancers at high frequency. The protein encoded by this gene is a phosphatidylinositol-3,4,5-trisphosphate 3-phosphatase. It contains a tensin like domain as well as a catalytic domain similar to that of the dual specificity protein tyrosine phosphatases. Unlike most of the protein tyrosine phosphatases, this protein preferentially dephosphorylates phosphoinositide substrates. It negatively regulates intracellular levels of phosphatidylinositol-3,4,5-trisphosphate in cells and functions as a tumor suppressor by negatively regulating AKT/PKB signaling pathway. The use of a non-canonical (CUG) upstream initiation site produces a longer isoform that initiates translation with a leucine, and is thought to be preferentially associated with the mitochondrial inner membrane. This longer isoform may help regulate energy metabolism in the mitochondria. A pseudogene of this gene is found on chromosome 9. Alternative splicing and the use of multiple translation start codons results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Feb 2015]

PTEN Gene-Disease associations (from GenCC):

Cowden syndrome 1
Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Ambry Genetics, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), G2P
PTEN hamartoma tumor syndrome
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
macrocephaly-autism syndrome
Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Genomics England PanelApp, Orphanet
renal cell carcinoma
Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
leiomyosarcoma
Inheritance: AR Classification: MODERATE Submitted by: Genomics England PanelApp
activated PI3K-delta syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Bannayan-Riley-Ruvalcaba syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Cowden disease
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Lhermitte-Duclos disease
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Proteus-like syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
glioma susceptibility 2
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

PTEN links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received -1 ACMG points.

BP4

For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	Exon rank	MANE	Protein	UniProt
PTEN	NM_000314.8 link	c.1027-4C>G	splice_region_variant, intron_variant	Intron 8 of 8	ENST00000371953.8	NP_000305.3
PTEN	NM_001304717.5 link	c.1546-4C>G	splice_region_variant, intron_variant	Intron 9 of 9		NP_001291646.4	P60484
PTEN	NM_001304718.2 link	c.436-4C>G	splice_region_variant, intron_variant	Intron 8 of 8		NP_001291647.1	P60484

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PTEN	ENST00000371953.8 link	c.1027-4C>G		splice_region_variant, intron_variant	Intron 8 of 8	1	NM_000314.8	ENSP00000361021.3		P60484-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000275

AC:

AN:

1456284

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

723976

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33378

American (AMR)

AF:

0.0000226

AC:

AN:

44164

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25916

East Asian (EAS)

AF:

0.00

AC:

AN:

39594

South Asian (SAS)

AF:

0.00

AC:

AN:

85648

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53106

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

9.02e-7

AC:

AN:

1108588

Other (OTH)

AF:

0.0000333

AC:

AN:

60128

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:4Benign:2

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome

Uncertain:2

Mar 04, 2025

Color Diagnostics, LLC DBA Color Health

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant causes a C to G nucleotide substitution at the -4 position of intron 8/8 of the PTEN gene. To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with PTEN-related disorders in the literature. This variant has not been identified in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -

Mar 12, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.1027-4C>G intronic variant results from a C to G substitution 4 nucleotides upstream from coding exon 9 in the PTEN gene. This nucleotide position is not well conserved in available vertebrate species. In silico splice site analysis predicts that this alteration will not have any significant effect on splicing; however, direct evidence is insufficient at this time (Ambry internal data). Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

PTEN hamartoma tumor syndrome

Uncertain:1Benign:1

Dec 20, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Dec 01, 2023

Clingen PTEN Variant Curation Expert Panel, Clingen

Significance:Uncertain significance

Review Status:reviewed by expert panel

Collection Method:curation

PTEN c.1027-4C>G (IVS8-4C>G) is currently classified as a variant of uncertain significance for PTEN Hamartoma Tumor syndrome in an autosomal dominant manner using modified ACMG criteria (ACMG Classification Rules Specified for PTEN Variant Curation version 3.0.0). Please see a summary of the rules and criteria codes in the “PTEN ACMG Specifications Summary” document (assertion method column). BP4: Intronic variant where at least 2 out of 3 in silico models predict no splicing impact. -

not provided

Uncertain:1

Dec 08, 2022

Quest Diagnostics Nichols Institute San Juan Capistrano

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

To the best of our knowledge, the variant has not been reported in the published literature. It also has not been reported in large, multi-ethnic general populations (http://gnomad.broadinstitute.org). Analysis of this variant using software algorithms for the prediction of the effect of nucleotide changes on splicing yielded predictions that this variant does not affect PTEN mRNA splicing . Based on the available information, we are unable to determine the clinical significance of this variant. -

not specified

Benign:1

Nov 11, 2015

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.32

CADD

Benign

8.0

(source)

DANN

Benign

0.82

PhyloP100

0.16

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.00029

dbscSNV1_RF

Benign

0.0060

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over