Send feedback

CCDC154 p.Cys310Tyr

c.929G>A · VCV3996620

Uncertain significance Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.000698%, nfe)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
REVEL0.245benign-leaning
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP 4.5GERP 1.3, phastCons 1
Regional constrainto/e 1.03unconstrained · MANE · 9,911 bp · p 0.42 · regional, not allelic
Overall
CADD22.6PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.000698% European (non-Finnish) · 8/1,146,740 alleles
Filtering AF 0.0003% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000217%
Overall 0.000516% 8/1,549,834 alleles · very rare

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.Cys310Tyr
Coding
c.929G>A
MANE Select
NM_001143980
Type
single nucleotide variant
Location
chr16:1438715 (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-cys310tyr (accessed [today's date]).

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