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CYLD p.Asp178=

c.534C>T · rs377383082 · VCV2646513

Likely benign Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
ultra-rare (popmax 0.0132%, 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 -0.73GERP -4.8, phastCons 0.022
Overall
CADD8.084PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0132% South Asian · 12/91,050 alleles
Filtering AF 0.00751% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00593%
Overall 0.00167% 27/1,613,466 alleles · ultra-rare
Ancestry group Frequency 1 in
South Asiangrpmax 0.0132% 7,587
East Asian 0.00891% 11,220
European (non-Finnish) 0.000932% 107,245

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
CYLD
Protein
p.Asp178=
Coding
c.534C>T
MANE Select
NM_001378743
dbSNP
rs377383082
Type
single nucleotide variant
Location
chr16:50751633 (GRCh38)
Gene constraint
LOEUF 0.325 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure
AlphaFold pLDDT 75.06 · 6 PDB
Residue 178
the cap-gly 1 domain; the 'interaction with trip' region
Full CYLD 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/cyld-p-asp178 (accessed [today's date]).

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