10-87960494-T-C

Variant names:

• chr10-87960494-T-C
• rs17431184
• NM_000314.8:c.802-400T>C

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_000314.8(PTEN):​c.802-400T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.156 in 152,136 control chromosomes in the GnomAD database, including 2,307 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.16 (2307 hom., cov: 32)
• Consequence: PTEN NM_000314.8 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0330
• Publications: 11 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: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.86).
• BA1: GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.264 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PTEN	NM_000314.8	c.802-400T>C		intron_variant	Intron 7 of 8	ENST00000371953.8	NP_000305.3
PTEN	NM_001304717.5	c.1321-400T>C		intron_variant	Intron 8 of 9		NP_001291646.4
PTEN	NM_001304718.2	c.211-400T>C		intron_variant	Intron 7 of 8		NP_001291647.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PTEN	ENST00000371953.8	c.802-400T>C		intron_variant	Intron 7 of 8	1	NM_000314.8	ENSP00000361021.3

Frequencies

GnomAD3 genomes AF: 0.156 AC: 23690 AN: 152018 Hom.: 2305 Cov.: 32

Gnomad AFR AF: 0.0370

Gnomad AMI AF: 0.191

Gnomad AMR AF: 0.191

Gnomad ASJ AF: 0.150

Gnomad EAS AF: 0.174

Gnomad SAS AF: 0.275

Gnomad FIN AF: 0.251

Gnomad MID AF: 0.114

Gnomad NFE AF: 0.196

Gnomad OTH AF: 0.146

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.156 AC: 23686 AN: 152136 Hom.: 2307 Cov.: 32 AF XY: 0.161 AC XY: 11965 AN XY: 74342

African (AFR) AF: 0.0369 AC: 1532 AN: 41574

American (AMR) AF: 0.191 AC: 2921 AN: 15284

Ashkenazi Jewish (ASJ) AF: 0.150 AC: 520 AN: 3464

East Asian (EAS) AF: 0.174 AC: 899 AN: 5176

South Asian (SAS) AF: 0.276 AC: 1332 AN: 4828

European-Finnish (FIN) AF: 0.251 AC: 2646 AN: 10548

Middle Eastern (MID) AF: 0.116 AC: 34 AN: 294

European-Non Finnish (NFE) AF: 0.196 AC: 13324 AN: 67948

Other (OTH) AF: 0.144 AC: 304 AN: 2108

Alfa AF: 0.168 Hom.: 719

Bravo AF: 0.145

Asia WGS AF: 0.209 AC: 726 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.86
CADD	Benign	1.4
DANN	Benign	0.29
PhyloP100		-0.033
Mutation Taster		=100/0	polymorphism (auto)

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: rs17431184; hg19: chr10-89720251;