Is PLEC p.Arg1982Trp (c.5944C>T) pathogenic?

PLEC p.Arg1982Trp (c.5944C>T) is classified Uncertain significance in PLEC (ClinVar, Multiple submitters, 3 submitters; last evaluated 2025-09-11). AlphaMissense: likely benign (0.1574); Ultra-rare (popmax 0.0113%, eas); Associated with epidermolysis bullosa simplex 5B, with muscular dystrophy.

What condition is associated with PLEC p.Arg1982Trp (c.5944C>T)?

PLEC p.Arg1982Trp (c.5944C>T) is associated with epidermolysis bullosa simplex 5B, with muscular dystrophy, epidermolysis bullosa simplex 5A, Ogna type, epidermolysis bullosa simplex 5C, with pyloric atresia (ClinVar).

How common is PLEC p.Arg1982Trp (c.5944C>T) in the general population?

PLEC p.Arg1982Trp (c.5944C>T) is ultra-rare (popmax 0.0113%, eas) (gnomAD).

What do computational predictors say about PLEC p.Arg1982Trp (c.5944C>T)?

AlphaMissense predicts likely benign (score 0.1574) — an in-silico prediction, not a clinical call.

PLEC p.Arg1982Trp

Q: How is Epidermolysis bullosa simplex with muscular dystrophy inherited?

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

c.5944C>T · rs782278361 · VCV970424

Uncertain significance Multiple submitters

Classification

Uncertain significance

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 3 submitters

AlphaMissense

likely benign

0.1574 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0113%, eas)

Conditions

epidermolysis bullosa simplex 5B, with muscular dystrophy

Computational evidence

Protein change
AlphaMissense	0.1574	likely benign
REVEL	0.39	indeterminate
SaProt	—	not scored · why
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 3	phastCons 1
Regional constraint	o/e 1.08	unconstrained · MANE · 18 kb · p 4.9e-10 · regional, not allelic
Overall
CADD	23.3	PHRED · no single calibrated threshold — expert panels disagree

AlphaMissense carries the ACMG weight for missense; REVEL is an independent agreement signal.

⚠ Isoform check: AlphaMissense numbered on a different transcript (AM R2119W vs ClinVar R1982W) — verify the residue.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0113% East Asian · 5/44,262 alleles

Filtering AF 0.00729% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00681%

Overall 0.00745% 118/1,584,722 alleles · ultra-rare exomes 110/1,432,688 · genomes 8/152,034 · joint denominator

Ancestry group	Frequency	1 in
East Asiangrpmax	0.0113%	8,852
European (non-Finnish)	0.00871%	11,486
African / African-American	0.00805%	12,418
South Asian	0.00334%	29,943
Remaining individualsnot grpmax-eligible	0.00325%	30,809

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.Arg1982Trp
Coding: c.5944C>T
MANE Select: NM_201384
dbSNP: rs782278361
Type: single nucleotide variant
Location: chr8:143923985 (GRCh38)
Gene constraint: LOEUF 0.726 · pLI <0.01 (gnomAD)

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

Disease context

epidermolysis bullosa simplex 5B, with muscular dystrophy — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

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

For Epidermolysis bullosa simplex with muscular dystrophy (Orphanet):

Inheritance: Autosomal recessive
Onset: Infancy, Neonatal

Similar variants

PLEC p.Arg1982Gln Uncertain significance ★★ ⚠ same residue
PLEC p.Arg1982= Likely benign ★ 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

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-arg1982trp (accessed [today's date]).

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