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COL9A2 p.Val446fs

c.1332del · rs1557793484 · VCV623682

Likely pathogenic Single submitter
Classification
Likely pathogenic
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
Consequence
frameshift
predicted LoF
gnomAD v4.1
Not reported
no gnomAD frequency available for this variant

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Consequenceframeshiftpredicted loss-of-function
NMDpredictedpremature termination codon in exon 26 of 32
Splicing
SpliceAI—not assessed · substitutions only
Constraint at this position
ConservationphyloP 4.6GERP 1.5, phastCons 1

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

Population frequency

dbSNP / gnomAD

No gnomAD frequency available for this variant. 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
COL9A2
Protein
p.Val446fs
Coding
c.1332del
MANE Select
NM_001852
dbSNP
rs1557793484
Type
Deletion
Location
chr1:40303964 (GRCh38)
Gene constraint
LOEUF 0.817 · pLI <0.01 · ClinGen HI 0/3 (gnomAD)
Structure
AlphaFold pLDDT 54.99 · 4 PDB
Residue 446
the 'disordered' region; a UniProt-annotated variant site (sequence variant); the 'triple-helical region 3 (col3)' region
Full COL9A2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

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/col9a2-p-val446fs (accessed [today's date]).

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