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DMPK p.Ala435=

c.1305G>A · rs771536499 · VCV3046615

Likely benign No assertion criteria
Classification
Likely benign
ClinVar
Review
No assertion criteria ☆☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0508%, afr)
Conditions
1
DMPK-related disorder

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
ConservationphyloP -1.5GERP -1.4
Overall
CADD6.363PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0508% African / African-American · 35/68,962 alleles
Filtering AF 0.0374% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0329%
Overall 0.00529% 81/1,532,586 alleles · ultra-rare exomes 47/1,380,364 · genomes 34/152,222 · joint denominator
Ancestry group Frequency 1 in
African / African-Americangrpmax 0.0508% 1,970
Remaining individualsnot grpmax-eligible 0.00677% 14,777
Admixed American 0.00482% 20,735
European (non-Finnish) 0.0033% 30,274
Finnishnot grpmax-eligible 0.00158% 63,322
South Asian 0.00129% 77,344

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
DMPK
Protein
p.Ala435=
Coding
c.1305G>A
MANE Select
NM_004409
dbSNP
rs771536499
Type
single nucleotide variant
Location
chr19:45772680 (GRCh38)
Gene constraint
LOEUF 0.67 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 78.91 · 2 PDB
Full DMPK gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

DMPK-related disorder

Similar variants

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/dmpk-p-ala435 (accessed [today's date]).

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