Is DLD p.Gln262fs (c.783del) pathogenic?

DLD p.Gln262fs (c.783del) is classified Pathogenic in DLD (ClinVar, Single submitter, 1 submitter; last evaluated 2022-07-26). Very rare (popmax 8.48e-05%, nfe); Associated with pyruvate dehydrogenase E3 deficiency.

What condition is associated with DLD p.Gln262fs (c.783del)?

DLD p.Gln262fs (c.783del) is associated with pyruvate dehydrogenase E3 deficiency (ClinVar).

How common is DLD p.Gln262fs (c.783del) in the general population?

DLD p.Gln262fs (c.783del) is very rare (popmax 8.48e-05%, nfe) (gnomAD).

How is Maple syrup urine disease inherited?

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

DLD p.Gln262fs

c.783del · rs1562919685 · VCV1359450

Pathogenic Single submitter

Classification

Pathogenic

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

Consequence

frameshift

predicted LoF

gnomAD v4.1

Rare

very rare (popmax 8.48e-05%, nfe)

Conditions

pyruvate dehydrogenase E3 deficiency

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Consequence	frameshift	predicted loss-of-function
NMD	predicted	premature termination codon in exon 9 of 14
Splicing
SpliceAI	—	not assessed · substitutions only
Constraint at this position
Conservation	phyloP 1.3	GERP -2.2, phastCons 1

Predicted loss-of-function is descriptive, not an applied PVS1 code.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 8.48e-05% European (non-Finnish) · 1/1,179,810 alleles

Overall 6.84e-05% 1/1,461,518 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: DLD
Protein: p.Gln262fs
Coding: c.783del
MANE Select: NM_000108
dbSNP: rs1562919685
Type: Deletion
Location: chr7:107915602 (GRCh38)
Gene constraint: LOEUF 0.727 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 93.69 · 17 PDB
Residue 262: an α-helix

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

Disease context

pyruvate dehydrogenase E3 deficiency — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Maple syrup urine disease (Orphanet):

Inheritance: Autosomal recessive
Onset: Childhood, Infancy, Neonatal
Prevalence: 1-9 / 1 000 000 (Worldwide)

Similar variants

DLD p.Gln262Ter Likely pathogenic ★ same residue
DLD p.Gln268fs Pathogenic/Likely pathogenic ★★ same condition
DLD p.Gly137del Pathogenic/Likely pathogenic ★★ same condition
DLD p.Gly246fs Likely pathogenic ★★ same condition
DLD p.Thr34_Tyr35insTer Pathogenic/Likely pathogenic ★★ same condition
DLD p.Tyr473fs Pathogenic ★★ same condition
DLD p.Asp121fs Pathogenic ★ same condition
DLD p.Asp286fs 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/dld-p-gln262fs (accessed [today's date]).

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