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CWC27 p.Lys366=

c.1098G>A · rs143676351 · VCV727278

Likely benign Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
rare (popmax 0.188%, afr)

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 1.3GERP 2.1, phastCons 1
Overall
CADD7.497PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.188% African / African-American · 141/74,860 alleles
Filtering AF 0.163% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.153%
Overall 0.00999% 161/1,612,316 alleles · rare
Ancestry group Frequency 1 in
African / African-Americangrpmax 0.188% 531
Middle Eastern 0.0495% 2,019
Admixed American 0.0117% 8,555
Remaining individualsnot grpmax-eligible 0.0112% 8,917
South Asian 0.0011% 90,772
European (non-Finnish) 0.00017% 589,630

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
CWC27
Protein
p.Lys366=
Coding
c.1098G>A
MANE Select
NM_005869
dbSNP
rs143676351
Type
single nucleotide variant
Location
chr5:64971758 (GRCh38)
Gene constraint
LOEUF 1.181 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 73.93 · 9 PDB
Residue 366
a UniProt-annotated variant site (in rpska); the 'disordered' region
Full CWC27 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/cwc27-p-lys366 (accessed [today's date]).

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