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CCDC50 p.Ser209=

c.627G>A · rs199687225 · VCV2179413

Likely benign Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
ultra-rare (popmax 0.0317%, amr)

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 -0.12GERP -3.1
Overall
CADD5.672PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0317% Admixed American · 19/59,958 alleles
Filtering AF 0.0207% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0172%
Overall 0.00415% 67/1,613,714 alleles · ultra-rare exomes 45/1,461,542 · genomes 22/152,172 · joint denominator
Ancestry group Frequency 1 in
Admixed Americangrpmax 0.0317% 3,156
Remaining individualsnot grpmax-eligible 0.016% 6,248
Finnishnot grpmax-eligible 0.00937% 10,670
South Asian 0.00439% 22,767
African / African-American 0.00267% 37,478
European (non-Finnish) 0.0022% 45,377

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
CCDC50
Protein
p.Ser209=
Coding
c.627G>A
MANE Select
NM_178335
dbSNP
rs199687225
Type
single nucleotide variant
Location
chr3:191375240 (GRCh38)
Gene constraint
LOEUF 0.933 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 75.90 · 1 PDB
Full CCDC50 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/ccdc50-p-ser209 (accessed [today's date]).

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