Is EGFR p.Pro20= (c.60G>T) pathogenic?

EGFR p.Pro20= (c.60G>T) is classified Likely benign in EGFR (ClinVar, Multiple submitters, 2 submitters; last evaluated 2025-11-17). Very rare (popmax 8.86e-05%, nfe); Associated with EGFR-related lung cancer.

What condition is associated with EGFR p.Pro20= (c.60G>T)?

EGFR p.Pro20= (c.60G>T) is associated with EGFR-related lung cancer, hereditary neoplastic syndrome (ClinVar).

How common is EGFR p.Pro20= (c.60G>T) in the general population?

EGFR p.Pro20= (c.60G>T) is very rare (popmax 8.86e-05%, nfe) (gnomAD).

EGFR p.Pro20=

c.60G>T · rs1391110463 · VCV2877876

Likely benign Multiple submitters

Classification

Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

gnomAD v4.1

Rare

very rare (popmax 8.86e-05%, nfe)

Conditions

EGFR-related lung cancer

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 0.25	GERP -2.5, phastCons 0.002
Overall
CADD	5.5	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 8.86e-05% European (non-Finnish) · 1/1,128,094 alleles

Overall 7.32e-05% 1/1,365,962 alleles · very rare

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: EGFR
Protein: p.Pro20=
Coding: c.60G>T
MANE Select: NM_005228
dbSNP: rs1391110463
Type: single nucleotide variant
Location: chr7:55019337 (GRCh38)
Gene constraint: LOEUF 0.475 · pLI 0.98 · ClinGen HI 0/3 (gnomAD)
Structure: AlphaFold pLDDT 76.29 · 393 PDB

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

Disease context

Also linked: hereditary neoplastic syndrome

Similar variants

EGFR p.Pro20Arg Conflicting classifications of pathogenicity ★ ⚠ same residue
EGFR p.Pro20Gln Conflicting classifications of pathogenicity ★ ⚠ same residue
EGFR p.Pro20Leu Conflicting classifications of pathogenicity ★ ⚠ same residue
EGFR c.1207+5G>A Uncertain significance ★★ same condition
EGFR c.1298+3A>G Uncertain significance ★★ same condition
EGFR c.1298+4A>G Uncertain significance ★★ same condition
EGFR c.1298+6T>C Uncertain significance ★★ same condition
EGFR c.1499-3C>T Uncertain significance ★★ 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/egfr-p-pro20 (accessed [today's date]).

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