Is DES p.Arg150Gln (c.449G>A) pathogenic?

DES p.Arg150Gln (c.449G>A) is classified Uncertain significance in DES (ClinVar, Multiple submitters, 3 submitters; last evaluated 2025-02-19). AlphaMissense: likely benign (0.186); Absent from gnomAD v4.1; Associated with myofibrillar myopathy 1.

What condition is associated with DES p.Arg150Gln (c.449G>A)?

DES p.Arg150Gln (c.449G>A) is associated with myofibrillar myopathy 1 (ClinVar).

How common is DES p.Arg150Gln (c.449G>A) in the general population?

DES p.Arg150Gln (c.449G>A) is absent from gnomAD v4.1 (gnomAD).

How is Desminopathy inherited?

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

What do computational predictors say about DES p.Arg150Gln (c.449G>A)?

AlphaMissense predicts likely benign (score 0.186) — an in-silico prediction, not a clinical call.

DES p.Arg150Gln

c.449G>A · rs876661344 · VCV234985

Uncertain significance Multiple submitters

Classification

Uncertain significance

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 3 submitters

AlphaMissense

likely benign

0.186 · ACMG-weighted

gnomAD v4.1

Not reported

no allele count reported in gnomAD v4.1 (AN 1,563,024)

Missense predictors

1/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

myofibrillar myopathy 1

Computational evidence

Protein change
AlphaMissense	0.186	likely benign
REVEL	0.69	pathogenic-leaning
SaProt	LLR -9.48	tolerated
⇒ REVEL calls this damaging; AlphaMissense and SaProt do not.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 9.7	GERP 0.76, phastCons 1
Regional constraint	o/e 0.92	unconstrained · MANE · 7,524 bp · p 0.05 · regional, not allelic
Overall
CADD	32.0	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

No allele count reported in gnomAD v4.1 (AN 1,563,024). This is missing data, not an absence: the variant may or may not be present in gnomAD. Rarity (ACMG PM2) and BA1/BS1 cannot be assessed for it.

Variant & gene context

Gene: DES
Protein: p.Arg150Gln
Coding: c.449G>A
MANE Select: NM_001927
dbSNP: rs876661344
Type: single nucleotide variant
Location: chr2:219418911 (GRCh38)
Gene constraint: LOEUF 0.81 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 77.73
Residue 150: the if rod domain; the 'linker 1' region

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

Disease context

myofibrillar myopathy 1 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Desminopathy (Orphanet):

Inheritance: Autosomal dominant, Autosomal recessive
Onset: Adolescent, Adult, Childhood, Infancy

Similar variants

DES p.Arg150= Likely benign ★ same residue
DES c.1289-2A>G Pathogenic/Likely pathogenic ★★ same condition
DES c.579-2A>C Likely pathogenic ★★ same condition
DES c.735+1G>A Pathogenic/Likely pathogenic ★★ same condition
DES c.735+1G>C Pathogenic/Likely pathogenic ★★ same condition
DES c.735+3A>G Pathogenic ★★ same condition
DES p.Ala120Pro Pathogenic/Likely pathogenic ★★ same condition
DES p.Ala285Val 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/des-p-arg150gln (accessed [today's date]).

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