Is EMD p.Ser175Arg (c.525C>G) pathogenic?

EMD p.Ser175Arg (c.525C>G) is classified Uncertain significance in EMD (ClinVar, Single submitter, 1 submitter; last evaluated 2025-12-19). AlphaMissense: ambiguous (0.3675); Very rare (popmax 0.000223%, nfe); Associated with X-linked Emery-Dreifuss muscular dystrophy.

What condition is associated with EMD p.Ser175Arg (c.525C>G)?

EMD p.Ser175Arg (c.525C>G) is associated with X-linked Emery-Dreifuss muscular dystrophy (ClinVar).

How common is EMD p.Ser175Arg (c.525C>G) in the general population?

EMD p.Ser175Arg (c.525C>G) is very rare (popmax 0.000223%, nfe) (gnomAD).

How is Emery-Dreifuss muscular dystrophy inherited?

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

What do computational predictors say about EMD p.Ser175Arg (c.525C>G)?

AlphaMissense predicts ambiguous (score 0.3675) — an in-silico prediction, not a clinical call.

EMD p.Ser175Arg

c.525C>G · rs782367505 · VCV1021146

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

ambiguous

0.3675 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.000223%, nfe)

Missense predictors

0/2 damaging

REVEL, SaProt · AlphaMissense no call

Conditions

X-linked Emery-Dreifuss muscular dystrophy

Computational evidence

Protein change
AlphaMissense	0.3675	ambiguous
REVEL	0.204	benign-leaning
SaProt	LLR -6.82	tolerated
⇒ REVEL and SaProt both call this tolerated; AlphaMissense makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 0.32	GERP 0.51, phastCons 0.99
Regional constraint	o/e 1.05	unconstrained · MANE · 1,709 bp · p 0.47 · regional, not allelic
Overall
CADD	15.91	PHRED · no single calibrated threshold — expert panels disagree

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.000223% European (non-Finnish) · 2/895,019 alleles

Filtering AF 3.7e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 1.4e-05%

Overall 0.000165% 2/1,209,453 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: EMD
Protein: p.Ser175Arg
Coding: c.525C>G
MANE Select: NM_000117
dbSNP: rs782367505
Type: single nucleotide variant
Location: chrX:154380957 (GRCh38)
Structure: AlphaFold pLDDT 61.26 · 6 PDB
Residue 175: a modified residue (phosphoserine); the 'interaction with f-actin' region; the 'interaction with ctnnb1' region

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

Disease context

X-linked Emery-Dreifuss muscular dystrophy — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Emery-Dreifuss muscular dystrophy (Orphanet):

Inheritance: Autosomal dominant, Autosomal recessive, X-linked recessive
Onset: Childhood
Prevalence: 1-9 / 1 000 000 (Europe)

Similar variants

EMD p.Ser175Asn Uncertain significance ★★ ⚠ same residue
EMD p.Ser175= Conflicting classifications of pathogenicity ★ same residue
EMD c.187+1G>A Pathogenic ★★ same condition
EMD c.187+1G>T Pathogenic/Likely pathogenic ★★ same condition
EMD c.265+1G>A Likely pathogenic ★★ same condition
EMD c.266-2A>G Pathogenic ★★ same condition
EMD c.266-3A>G Pathogenic ★★ same condition
EMD c.399+1G>T 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/emd-p-ser175arg (accessed [today's date]).

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