10-87960993-G-T

Variant names:

• chr10-87960993-G-T
• rs758644748
• NM_000314.8:c.901G>T

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP2 PP3

The NM_000314.8(PTEN):​c.901G>T​(p.Asp301Tyr) variant causes a missense change. 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. D301N) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 31)
• Consequence: PTEN NM_000314.8 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 4.26
• Publications: 10 publications found

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

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• 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, 0.765

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PTEN	NM_000314.8	c.901G>T	p.Asp301Tyr	missense_variant	Exon 8 of 9	ENST00000371953.8	NP_000305.3
PTEN	NM_001304717.5	c.1420G>T	p.Asp474Tyr	missense_variant	Exon 9 of 10		NP_001291646.4
PTEN	NM_001304718.2	c.310G>T	p.Asp104Tyr	missense_variant	Exon 8 of 9		NP_001291647.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PTEN	ENST00000371953.8	c.901G>T	p.Asp301Tyr	missense_variant	Exon 8 of 9	1	NM_000314.8	ENSP00000361021.3

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 36

GnomAD4 genome Cov.: 31

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Uncertain:1

Aug 01, 2019

CeGaT Center for Human Genetics Tuebingen

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Hereditary cancer-predisposing syndrome Uncertain:1

May 13, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.D301Y variant (also known as c.901G>T), located in coding exon 8 of the PTEN gene, results from a G to T substitution at nucleotide position 901. The aspartic acid at codon 301 is replaced by tyrosine, an amino acid with highly dissimilar properties. In a massively parallel functional assay using a humanized yeast model, lipid phosphatase activity for this variant was functionally neutral (Mighell TL et al. Am J Hum Genet, 2018 May;102:943-955). This amino acid position is well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Based on the available evidence, the clinical significance of this variant remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.26
BayesDel_addAF	Pathogenic	0.20	D
BayesDel_noAF	Uncertain	0.040
CADD	Pathogenic	26
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.71	D;.
Eigen	Uncertain	0.48
Eigen_PC	Uncertain	0.54
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.88	D;D
M_CAP	Uncertain	0.21	D
MetaRNN	Pathogenic	0.77	D;D
MetaSVM	Uncertain	0.66	D
MutationAssessor	Uncertain	2.1	M;.
PhyloP100		4.3
PrimateAI	Uncertain	0.63	T
PROVEAN	Benign	-1.5	N;.
REVEL	Pathogenic	0.67
Sift	Uncertain	0.026	D;.
Sift4G	Benign	0.081	T;T
Polyphen		0.79	P;.
Vest4		0.74
MutPred		0.59		Loss of disorder (P = 0.039);.;
MVP		0.86
MPC		1.8
ClinPred		0.79	D
GERP RS		5.1
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.30
gMVP		0.79
Mutation Taster		=47/53	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

Other links and lift over

dbSNP: rs758644748; hg19: chr10-89720750;