Is DYNC2I2 p.Ala224Val (c.671C>T) pathogenic?

DYNC2I2 p.Ala224Val (c.671C>T) is classified Uncertain significance in DYNC2I2 (ClinVar, Single submitter, 1 submitter; last evaluated 2021-12-23). AlphaMissense: likely benign (0.2126); Absent from gnomAD v4.1; Associated with short-rib thoracic dysplasia 11 with or without polydactyly.

What condition is associated with DYNC2I2 p.Ala224Val (c.671C>T)?

DYNC2I2 p.Ala224Val (c.671C>T) is associated with short-rib thoracic dysplasia 11 with or without polydactyly (ClinVar).

How common is DYNC2I2 p.Ala224Val (c.671C>T) in the general population?

DYNC2I2 p.Ala224Val (c.671C>T) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about DYNC2I2 p.Ala224Val (c.671C>T)?

AlphaMissense predicts likely benign (score 0.2126) — an in-silico prediction, not a clinical call.

DYNC2I2 p.Ala224Val

c.671C>T · rs762547471 · VCV2419575

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.2126 · ACMG-weighted

gnomAD v4.1

Not reported

no allele count reported in gnomAD v4.1 (AN 1,588,422)

Missense predictors

1/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

short-rib thoracic dysplasia 11 with or without polydactyly

Computational evidence

Protein change
AlphaMissense	0.2126	likely benign
REVEL	0.238	benign-leaning
SaProt	LLR -11.09	damaging
⇒ SaProt calls this damaging; AlphaMissense and REVEL do not.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 12	GERP 1.8, phastCons 1
Regional constraint	o/e 1.02	unconstrained · MANE · 23 kb · p 0.59 · regional, not allelic
Overall
CADD	25.6	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 1,588,422). 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: DYNC2I2
Protein: p.Ala224Val
Coding: c.671C>T
MANE Select: NM_052844
dbSNP: rs762547471
Type: single nucleotide variant
Location: chr9:128636313 (GRCh38)
Gene constraint: LOEUF 1.036 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 82.66 · 4 PDB

Full DYNC2I2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

short-rib thoracic dysplasia 11 with or without polydactyly — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

DYNC2I2 c.1372+1G>A Pathogenic/Likely pathogenic ★★ same condition
DYNC2I2 p.Arg121Ter Pathogenic ★★ same condition
DYNC2I2 p.Arg182Trp Pathogenic/Likely pathogenic ★★ ⚠ same condition
DYNC2I2 p.Arg447Trp Pathogenic/Likely pathogenic ★★ same condition
DYNC2I2 p.Ala131Val Uncertain significance ★★ ⚠ same condition
DYNC2I2 p.Ala13Gly Uncertain significance ★★ ⚠ same condition
DYNC2I2 p.Ala219Thr Uncertain significance ★★ ⚠ same condition
DYNC2I2 p.Ala369Val 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/dync2i2-p-ala224val (accessed [today's date]).

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