Is DYNC2H1 p.Arg898Ter (c.2692C>T) pathogenic?

DYNC2H1 p.Arg898Ter (c.2692C>T) is classified Pathogenic/Likely pathogenic in DYNC2H1 (ClinVar, Multiple submitters, 3 submitters; last evaluated 2026-01-12). Very rare (popmax 0.00222%, sas); Associated with asphyxiating thoracic dystrophy 3.

What condition is associated with DYNC2H1 p.Arg898Ter (c.2692C>T)?

DYNC2H1 p.Arg898Ter (c.2692C>T) is associated with asphyxiating thoracic dystrophy 3, Jeune syndrome (ClinVar).

How common is DYNC2H1 p.Arg898Ter (c.2692C>T) in the general population?

DYNC2H1 p.Arg898Ter (c.2692C>T) is very rare (popmax 0.00222%, sas) (gnomAD).

DYNC2H1 p.Arg898Ter

c.2692C>T · rs1007294927 · VCV2431209

Pathogenic/Likely pathogenic Multiple submitters

Classification

Pathogenic/Likely pathogenic

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 3 submitters

Consequence

nonsense (stop-gain)

predicted LoF

gnomAD v4.1

Rare

very rare (popmax 0.00222%, sas)

Conditions

asphyxiating thoracic dystrophy 3

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation/SpliceAI carries the signal.
Consequence	nonsense (stop-gain)	predicted loss-of-function
NMD	predicted	premature termination codon in exon 18 of 89
Splicing
SpliceAI	Δ0.25	donor loss · deltas
Pangolin	Δ0.38	loss · gain 0.01 · agrees with SpliceAI · independent
Constraint at this position
Conservation	phyloP 5.9	GERP 2.2, phastCons 1
Overall
CADD	42.0	PHRED · no single calibrated threshold — expert panels disagree

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

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00222% South Asian · 2/90,026 alleles

Filtering AF 0.000804% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000651%

Overall 0.00112% 18/1,609,714 alleles · very rare exomes 18/1,457,560 · genomes 0/152,154 · joint denominator

Ancestry group	Frequency	1 in
South Asiangrpmax	0.00222%	45,013
European (non-Finnish)	0.00136%	73,645

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: DYNC2H1
Protein: p.Arg898Ter
Coding: c.2692C>T
MANE Select: NM_001377
dbSNP: rs1007294927
Type: single nucleotide variant
Location: chr11:103143385 (GRCh38)
Gene constraint: LOEUF 0.859 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Residue 898: the 'stem' region

Full DYNC2H1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

asphyxiating thoracic dystrophy 3 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: Jeune syndrome

Similar variants

DYNC2H1 p.Arg898Gln Conflicting classifications of pathogenicity ★ ⚠ same residue
DYNC2H1 c.10042+2T>G Pathogenic/Likely pathogenic ★★ same condition
DYNC2H1 c.10462-2A>G Likely pathogenic ★★ same condition
DYNC2H1 c.10606-14A>G Pathogenic/Likely pathogenic ★★ same condition
DYNC2H1 c.10695+1G>A Likely pathogenic ★★ same condition
DYNC2H1 c.10813-2A>G Likely pathogenic ★★ same condition
DYNC2H1 c.11493+2T>A Likely pathogenic ★★ same condition
DYNC2H1 c.11650-1G>A Pathogenic/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/dync2h1-p-arg898ter (accessed [today's date]).

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