10-87863548-G-C

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The ENST00000693560(PTEN):c.-402G>C variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000013 in 385,592 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

PTEN
ENST00000693560 5_prime_UTR

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 2.61

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 links:

KLLN (HGNC:37212): (killin, p53 regulated DNA replication inhibitor) The protein encoded by this intronless gene is found in the nucleus, where it can inhibit DNA synthesis and promote S phase arrest coupled to apoptosis. The expression of this DNA binding protein is upregulated by transcription factor p53. [provided by RefSeq, Dec 2012]

KLLN links:

ENSG00000289051 (HGNC:55481):

ENSG00000289051 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.39).

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	MANE	Protein	UniProt
PTEN	NM_000314.8 link	c.-922G>C	upstream_gene_variant	ENST00000371953.8	NP_000305.3
KLLN	NM_001126049.2 link	c.-1061C>G	upstream_gene_variant	ENST00000445946.5	NP_001119521.1	B2CW77
PTEN	NM_001304717.5 link	c.-402G>C	upstream_gene_variant		NP_001291646.4	P60484
PTEN	NM_001304718.2 link	c.-1627G>C	upstream_gene_variant		NP_001291647.1	P60484

Ensembl

Gene	Transcript	HGVSc	Effect	TSL	MANE	Protein	UniProt
PTEN	ENST00000371953.8 link	c.-922G>C	upstream_gene_variant	1	NM_000314.8	ENSP00000361021.3	P60484-1
KLLN	ENST00000445946.5 link	c.-1061C>G	upstream_gene_variant	6	NM_001126049.2	ENSP00000392204.2	B2CW77
ENSG00000289051	ENST00000692337.1 link	c.-11G>C	upstream_gene_variant			ENSP00000509326.1

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

151984

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000171

AC:

AN:

233608

Hom.:

Cov.:

AF XY:

0.0000253

AC XY:

AN XY:

118748

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000268

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000658

AC:

AN:

151984

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74230

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 24, 2017

GeneDx

Significance: Uncertain significance

Review Status: flagged submission

Collection Method: clinical testing

This variant is denoted PTEN c.-921G>C, and describes a nucleotide substitution 921 base pairsupstream of the ATG translational start site in the PTEN promoter region. The surrounding sequence, with the basethat is substituted in brackets, is GCCG[G/C]CGGG. This variant, also called c.-920G>C using alternate numbering,has not been published in the literature to our knowledge. Variants within the PTEN promoter have been observed inindividuals with features of Cowden syndrome (Zhou 2003). Based on currently available information, it is unclearwhether PTEN c.-921G>C is pathogenic or benign. We consider it to be a variant of uncertain significance. -

not provided

Uncertain:1

Dec 12, 2022

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Has not been previously published as pathogenic or benign to our knowledge; Reliable data are not available in large population cohorts to assess the frequency of this variant in publicly available databases; Also known as c.-921G>C -

Hereditary cancer-predisposing syndrome

Uncertain:1

Oct 18, 2019

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.-921G>C variant is located in the 5' untranslated region (5’ UTR) of the PTEN gene. This variant results from a G to C substitution 921 bases upstream from the first translated codon. This variant is located in the promoter region of the PTEN gene, but its potential impact on PTEN regulation has not yet been investigated (Zhou XP et al. Am. J. Hum. Genet. 2003 Aug;73:404-11). This nucleotide position is poorly conserved in available vertebrate species. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.39

CADD

Benign

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

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

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over