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BBX p.Leu689=

c.2067G>A · rs201690465 · VCV3133189

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00967%, nfe)

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 7.6GERP 1.1, phastCons 1
Overall
CADD11.03PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00967% European (non-Finnish) · 114/1,179,440 alleles
Filtering AF 0.00818% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00761%
Overall 0.00762% 123/1,613,212 alleles · very rare
Ancestry group Frequency 1 in
European (non-Finnish)grpmax 0.00967% 10,346
Finnishnot grpmax-eligible 0.00781% 12,803
Remaining individualsnot grpmax-eligible 0.0032% 31,230
African / African-American 0.00267% 37,462

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
BBX
Protein
p.Leu689=
Coding
c.2067G>A
MANE Select
NM_001142568
dbSNP
rs201690465
Type
single nucleotide variant
Location
chr3:107778383 (GRCh38)
Gene constraint
LOEUF 0.359 · pLI 1.00 (gnomAD)
Structure
AlphaFold pLDDT 50.79
Full BBX 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/bbx-p-leu689 (accessed [today's date]).

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