rs1554825510

Variant summary

Our verdict is Likely pathogenic. The variant received 9 ACMG points: 9P and 0B. PM1PM2PM5PP2PP3_Moderate

The NM_000314.8(PTEN):​c.828T>A​(p.Asn276Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N276I) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.0 ( 0 hom., cov: 31)
Failed GnomAD Quality Control

Consequence

PTEN
NM_000314.8 missense

Scores

11
6
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.96

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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 9 ACMG points.

PM1
In a hotspot region, there are 6 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 40 uncertain in NM_000314.8
PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr10-87960919-A-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 988006.
PP2
Missense variant in the PTEN gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 209 curated pathogenic missense variants (we use a threshold of 10). The gene has 22 curated benign missense variants. Gene score misZ: 3.4883 (above the threshold of 3.09). Trascript score misZ: 4.1129 (above the threshold of 3.09). GenCC associations: The gene is linked to leiomyosarcoma, renal cell carcinoma, Cowden syndrome 1, macrocephaly-autism syndrome, glioma susceptibility 2, PTEN hamartoma tumor syndrome, Cowden disease, Bannayan-Riley-Ruvalcaba syndrome, Proteus-like syndrome, Lhermitte-Duclos disease, activated PI3K-delta syndrome.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.916

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PTENNM_000314.8 linkc.828T>A p.Asn276Lys missense_variant Exon 8 of 9 ENST00000371953.8 NP_000305.3
PTENNM_001304717.5 linkc.1347T>A p.Asn449Lys missense_variant Exon 9 of 10 NP_001291646.4 P60484
PTENNM_001304718.2 linkc.237T>A p.Asn79Lys missense_variant Exon 8 of 9 NP_001291647.1 P60484

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PTENENST00000371953.8 linkc.828T>A p.Asn276Lys missense_variant Exon 8 of 9 1 NM_000314.8 ENSP00000361021.3 P60484-1

Frequencies

GnomAD3 genomes
AF:
0.00
AC:
0
AN:
150698
Hom.:
0
Cov.:
31
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
Cov.:
36
GnomAD4 genome
Data not reliable, filtered out with message: AC0;AS_VQSR
AF:
0.00
AC:
0
AN:
150698
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
73600
African (AFR)
AF:
0.00
AC:
0
AN:
40780
American (AMR)
AF:
0.00
AC:
0
AN:
15112
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3462
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5150
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4804
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10288
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67806
Other (OTH)
AF:
0.00
AC:
0
AN:
2074

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

PTEN hamartoma tumor syndrome Uncertain:1
Jan 27, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Not Available"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Not Available"). This variant has not been reported in the literature in individuals affected with PTEN-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces asparagine, which is neutral and polar, with lysine, which is basic and polar, at codon 276 of the PTEN protein (p.Asn276Lys). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.17
D
BayesDel_noAF
Uncertain
0.0
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.96
D;.
Eigen
Uncertain
0.32
Eigen_PC
Benign
0.20
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.94
D;D
M_CAP
Pathogenic
0.51
D
MetaRNN
Pathogenic
0.92
D;D
MetaSVM
Uncertain
0.63
D
MutationAssessor
Pathogenic
3.2
M;.
PhyloP100
2.0
PrimateAI
Pathogenic
0.86
D
PROVEAN
Pathogenic
-5.7
D;.
REVEL
Pathogenic
0.80
Sift
Pathogenic
0.0
D;.
Sift4G
Pathogenic
0.0
D;D
Polyphen
1.0
D;.
Vest4
0.97
MutPred
0.80
Gain of methylation at N276 (P = 0.0017);.;
MVP
0.97
MPC
2.5
ClinPred
1.0
D
GERP RS
0.11
Varity_R
0.96
gMVP
0.97
Mutation Taster
=8/92
disease causing

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

Other links and lift over

dbSNP: rs1554825510; hg19: chr10-89720677; COSMIC: COSV64299696; API