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CCDC154 p.Arg95Cys

c.283C>T · rs753466167 · VCV2234839

Uncertain significance Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0146%, eas)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
REVEL0.032moderately benign-leaning
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP 2.7GERP 0.21, phastCons 0.26
Regional constrainto/e 1.03unconstrained · MANE · 9,911 bp · p 0.42 · regional, not allelic
Overall
CADD16.61PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0146% East Asian · 4/27,394 alleles
Filtering AF 0.0049% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00313%
Overall 0.00354% 48/1,357,538 alleles · ultra-rare
Ancestry group Frequency 1 in
East Asiangrpmax 0.0146% 6,849
Admixed American 0.0124% 8,042
Remaining individualsnot grpmax-eligible 0.0102% 9,839
African / African-American 0.00294% 34,043
European (non-Finnish) 0.00288% 34,699
South Asian 0.00262% 38,176

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
CCDC154
Protein
p.Arg95Cys
Coding
c.283C>T
MANE Select
NM_001143980
dbSNP
rs753466167
Type
single nucleotide variant
Location
chr16:1443637 (GRCh38)
Gene constraint
LOEUF 1.366 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 76.92
Full CCDC154 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/ccdc154-p-arg95cys (accessed [today's date]).

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