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COL2A1 p.Asp1469=

c.4407C>T · rs750477616 · VCV516290

Likely benign Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 3 submitters
gnomAD v4.1
Rare
ultra-rare (popmax 0.0307%, sas)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP 8.7GERP 1.7, phastCons 1
Overall
CADD9.427PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0307% South Asian · 28/91,082 alleles
Filtering AF 0.0218% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0188%
Overall 0.00421% 68/1,614,002 alleles · ultra-rare
Ancestry group Frequency 1 in
South Asiangrpmax 0.0307% 3,253
Middle Eastern 0.0164% 6,084
Remaining individualsnot grpmax-eligible 0.0064% 15,622
European (non-Finnish) 0.00288% 34,707
African / African-American 0.00134% 74,872

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
COL2A1
Protein
p.Asp1469=
Coding
c.4407C>T
MANE Select
NM_001844
dbSNP
rs750477616
Type
single nucleotide variant
Location
chr12:47973464 (GRCh38)
Gene constraint
LOEUF 0.183 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure
AlphaFold pLDDT 53.56 · 11 PDB
Residue 1469
a UniProt-annotated variant site (in plsd-t); the fibrillar collagen nc1 domain; a disulfide bond
Full COL2A1 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/col2a1-p-asp1469 (accessed [today's date]).

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