Is PLEC p.Ser3226= (c.9678A>G) pathogenic?

PLEC p.Ser3226= (c.9678A>G) is classified Likely benign in PLEC (ClinVar, Single submitter, 1 submitter; last evaluated 2025-06-15). Ultra-rare (popmax 0.0317%, amr); Associated with epidermolysis bullosa simplex 5C, with pyloric atresia.

What condition is associated with PLEC p.Ser3226= (c.9678A>G)?

PLEC p.Ser3226= (c.9678A>G) is associated with epidermolysis bullosa simplex 5C, with pyloric atresia, epidermolysis bullosa simplex 5A, Ogna type, epidermolysis bullosa simplex 5B, with muscular dystrophy (ClinVar).

How common is PLEC p.Ser3226= (c.9678A>G) in the general population?

PLEC p.Ser3226= (c.9678A>G) is ultra-rare (popmax 0.0317%, amr) (gnomAD).

PLEC p.Ser3226=

Q: How is Epidermolysis bullosa simplex with pyloric atresia inherited?

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

c.9678A>G · rs782418589 · VCV1106927

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

ultra-rare (popmax 0.0317%, amr)

Conditions

epidermolysis bullosa simplex 5C, with pyloric atresia

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 -9.4
Overall
CADD	0.03	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0317% Admixed American · 19/60,004 alleles

Filtering AF 0.0207% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0172%

Overall 0.00161% 26/1,612,648 alleles · ultra-rare exomes 24/1,460,454 · genomes 2/152,194 · joint denominator

Ancestry group	Frequency	1 in
Admixed Americangrpmax	0.0317%	3,158
South Asian	0.00549%	18,218
Remaining individualsnot grpmax-eligible	0.0016%	62,472
African / African-American	0.00133%	74,934

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: PLEC
Protein: p.Ser3226=
Coding: c.9678A>G
MANE Select: NM_201384
dbSNP: rs782418589
Type: single nucleotide variant
Location: chr8:143920143 (GRCh38)
Gene constraint: LOEUF 0.726 · pLI <0.01 (gnomAD)
Residue 3226: the 'required for interaction with intermediate filament proteins' region; the 'globular 2' region

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

Disease context

epidermolysis bullosa simplex 5C, with pyloric atresia — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: epidermolysis bullosa simplex 5A, Ogna type epidermolysis bullosa simplex 5B, with muscular dystrophy autosomal recessive limb-girdle muscular dystrophy type 2Q epidermolysis bullosa simplex with nail dystrophy

For Epidermolysis bullosa simplex with pyloric atresia (Orphanet):

Inheritance: Autosomal recessive
Onset: Neonatal

Similar variants

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PLEC p.Arg2027Ter Pathogenic ★★ same condition
PLEC p.Arg2292Ter Pathogenic ★★ same condition
PLEC p.Arg2324Ter Pathogenic ★★ same condition
PLEC p.Arg2394Ter Pathogenic ★★ same condition
PLEC p.Arg559Ter Pathogenic ★★ same condition
PLEC p.Gln1591Ter Pathogenic/Likely 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/plec-p-ser3226 (accessed [today's date]).

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