Is PLEC p.Ala878= (c.2634C>T) pathogenic?

PLEC p.Ala878= (c.2634C>T) is classified Likely benign in PLEC (ClinVar, Single submitter, 1 submitter; last evaluated 2022-02-02). Absent from gnomAD v4.1; Associated with epidermolysis bullosa simplex 5C, with pyloric atresia.

What condition is associated with PLEC p.Ala878= (c.2634C>T)?

PLEC p.Ala878= (c.2634C>T) 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.Ala878= (c.2634C>T) in the general population?

PLEC p.Ala878= (c.2634C>T) is absent from gnomAD v4.1 (gnomAD).

PLEC p.Ala878=

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.2634C>T · rs2538550890 · VCV2091851

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Absent

absent from gnomAD v4.1

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 0.055	phastCons 0.21
Overall
CADD	7.007	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: PLEC
Protein: p.Ala878=
Coding: c.2634C>T
MANE Select: NM_201384
dbSNP: rs2538550890
Type: single nucleotide variant
Location: chr8:143930041 (GRCh38)
Gene constraint: LOEUF 0.726 · pLI <0.01 (gnomAD)
Residue 878: an α-helix; the 'globular 1' 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

PLEC p.Ala878Val Uncertain significance ★ ⚠ same residue
PLEC p.Arg1490Ter Pathogenic/Likely pathogenic ★★ same condition
PLEC p.Arg1973Trp Pathogenic ★★ ⚠ same condition
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

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-ala878 (accessed [today's date]).

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