Is DNAJB6 p.Ser57= (c.171G>A) pathogenic?

DNAJB6 p.Ser57= (c.171G>A) is classified Likely benign in DNAJB6 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-11-10). Very rare (popmax 0.00892%, eas); Associated with autosomal dominant limb-girdle muscular dystrophy type 1D (DNAJB6).

What condition is associated with DNAJB6 p.Ser57= (c.171G>A)?

DNAJB6 p.Ser57= (c.171G>A) is associated with autosomal dominant limb-girdle muscular dystrophy type 1D (DNAJB6) (ClinVar).

How common is DNAJB6 p.Ser57= (c.171G>A) in the general population?

DNAJB6 p.Ser57= (c.171G>A) is very rare (popmax 0.00892%, eas) (gnomAD).

How is DNAJB6-related limb-girdle muscular dystrophy D1 inherited?

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

DNAJB6 p.Ser57=

c.171G>A · rs771439631 · VCV1588732

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

very rare (popmax 0.00892%, eas)

Conditions

autosomal dominant limb-girdle muscular dystrophy type 1D (DNAJB6)

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 -3	GERP -4.1
Overall
CADD	0.688	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00892% East Asian · 4/44,834 alleles

Filtering AF 0.00298% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0018%

Overall 0.000997% 16/1,605,270 alleles · very rare exomes 15/1,453,114 · genomes 1/152,156 · joint denominator

Ancestry group	Frequency	1 in
East Asiangrpmax	0.00892%	11,209
African / African-American	0.00134%	74,776
European (non-Finnish)	0.000937%	106,763

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: DNAJB6
Protein: p.Ser57=
Coding: c.171G>A
MANE Select: NM_058246
dbSNP: rs771439631
Type: single nucleotide variant
Location: chr7:157363266 (GRCh38)
Gene constraint: LOEUF 0.92 · pLI <0.01 · ClinGen HI 0/3 (gnomAD)
Structure: AlphaFold pLDDT 64.04 · 4 PDB
Residue 57: the j domain; the 'interaction with hsp70' region

Full DNAJB6 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

autosomal dominant limb-girdle muscular dystrophy type 1D (DNAJB6) — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For DNAJB6-related limb-girdle muscular dystrophy D1 (Orphanet):

Inheritance: Autosomal dominant
Onset: Adult

Similar variants

DNAJB6 p.Ser57Leu Uncertain significance ★ ⚠ same residue
DNAJB6 p.Phe89Ile Pathogenic ★★ same condition
DNAJB6 p.Phe91Leu Pathogenic ★★ same condition
DNAJB6 p.Phe91Val Pathogenic/Likely pathogenic ★★ same condition
DNAJB6 p.Pro96Arg Pathogenic ★★ same condition
DNAJB6 c.66-2A>G Uncertain significance ★★ same condition
DNAJB6 c.-7G>A Uncertain significance ★★ same condition
DNAJB6 p.Ala22Val Uncertain significance ★★ ⚠ 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/dnajb6-p-ser57 (accessed [today's date]).

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