Is DYNC2I2 p.Ser401Pro (c.1201T>C) pathogenic?

DYNC2I2 p.Ser401Pro (c.1201T>C) is classified Uncertain significance in DYNC2I2 (ClinVar, Single submitter, 1 submitter; last evaluated 2022-02-22). AlphaMissense: likely pathogenic (0.9); Absent from gnomAD v4.1; Associated with short-rib thoracic dysplasia 11 with or without polydactyly.

What condition is associated with DYNC2I2 p.Ser401Pro (c.1201T>C)?

DYNC2I2 p.Ser401Pro (c.1201T>C) is associated with short-rib thoracic dysplasia 11 with or without polydactyly (ClinVar).

How common is DYNC2I2 p.Ser401Pro (c.1201T>C) in the general population?

DYNC2I2 p.Ser401Pro (c.1201T>C) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about DYNC2I2 p.Ser401Pro (c.1201T>C)?

AlphaMissense predicts likely pathogenic (score 0.9) — an in-silico prediction, not a clinical call.

DYNC2I2 p.Ser401Pro

c.1201T>C · rs1860335863 · VCV2102116

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.9 · ACMG-weighted

gnomAD v4.1

Not reported

no allele count reported in gnomAD v4.1 (AN 1,570,738)

Missense predictors

3/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

short-rib thoracic dysplasia 11 with or without polydactyly

Computational evidence

Protein change
AlphaMissense	0.9	likely pathogenic · top 6% in DYNC2I2
REVEL	0.759	pathogenic-leaning
SaProt	LLR -14.61	damaging
⇒ AlphaMissense, REVEL and SaProt all call this damaging.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 9.1	GERP 1.5, phastCons 1
Regional constraint	o/e 1.02	unconstrained · MANE · 23 kb · p 0.59 · regional, not allelic
Overall
CADD	31.0	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean damaging — a triage signal, not a reclassification

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 1,570,738). 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.Ser401Pro
Coding: c.1201T>C
MANE Select: NM_052844
dbSNP: rs1860335863
Type: single nucleotide variant
Location: chr9:128634702 (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 p.Ser401Phe Uncertain significance ★ ⚠ same residue
DYNC2I2 p.Ser401fs Pathogenic ★ same residue
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

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-ser401pro (accessed [today's date]).

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