Is PTEN p.Pro357= (c.1071A>G) pathogenic?

PTEN p.Pro357= (c.1071A>G) is classified Benign/Likely benign in PTEN (ClinVar, Multiple submitters, 3 submitters; last evaluated 2025-02-13). Very rare (popmax 0.00133%, afr); Associated with PTEN hamartoma tumor syndrome.

What condition is associated with PTEN p.Pro357= (c.1071A>G)?

PTEN p.Pro357= (c.1071A>G) is associated with PTEN hamartoma tumor syndrome, Cowden syndrome 1, hereditary neoplastic syndrome (ClinVar).

How common is PTEN p.Pro357= (c.1071A>G) in the general population?

PTEN p.Pro357= (c.1071A>G) is very rare (popmax 0.00133%, afr) (gnomAD).

How is PTEN hamartoma tumor syndrome inherited?

Typically Autosomal dominant (Orphanet). A genetic counselor can assess individual risk for a family.

PTEN p.Pro357=

c.1071A>G · rs764488459 · VCV2059435

Benign/Likely benign Multiple submitters

Classification

Benign/Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 3 submitters

gnomAD v4.1

Rare

very rare (popmax 0.00133%, afr)

Conditions

PTEN hamartoma tumor syndrome

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 0.86	GERP -5.7, phastCons 0.98
Overall
CADD	6.419	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00133% African / African-American · 1/74,964 alleles

Overall 0.000137% 2/1,457,474 alleles · very rare

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.00133%	74,964
European (non-Finnish)	8.49e-05%	1,177,433

Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.

Variant & gene context

Gene: PTEN
Protein: p.Pro357=
Coding: c.1071A>G
MANE Select: NM_000314
dbSNP: rs764488459
Type: single nucleotide variant
Location: chr10:87965331 (GRCh38)
Gene constraint: LOEUF 0.685 · pLI 0.05 · ClinGen HI 3/3 (gnomAD)
Structure: AlphaFold pLDDT 83.76 · 12 PDB
Residue 357: a UniProt-annotated variant site (in mcephas); the 'disordered' region

Full PTEN gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

PTEN hamartoma tumor syndrome — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: Cowden syndrome 1 hereditary neoplastic syndrome

For PTEN hamartoma tumor syndrome (Orphanet):

Inheritance: Autosomal dominant
Onset: All ages
Prevalence: 1-9 / 100 000 (Worldwide)

Similar variants

PTEN p.Pro357Leu Uncertain significance ★★ ⚠ same residue
PTEN p.Pro357Ala Uncertain significance ★ ⚠ same residue
PTEN p.Pro357Thr Conflicting classifications of pathogenicity ★ ⚠ same residue
PTEN c.1026+1G>A Pathogenic ★★★ same condition
PTEN c.1027-1852A>G Likely pathogenic ★★★ same condition
PTEN c.1027-1G>A Pathogenic ★★★ same condition
PTEN c.165-1G>A Likely pathogenic ★★★ same condition
PTEN c.165-1G>C Pathogenic ★★★ same condition

Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →

Cite Sugi Variant

Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/pten-p-pro357 (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown