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ABCG8 p.Leu294=

c.880T>C · rs774971723 · VCV2450764

Likely benign Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
very rare (popmax 0.00102%, nfe)
Conditions
1
Cardiovascular phenotype

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 -1.2GERP -3.5, phastCons 0.001
Overall
CADD1.578PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00102% European (non-Finnish) · 12/1,180,008 alleles
Filtering AF 0.000542% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000428%
Overall 0.000744% 12/1,613,954 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
ABCG8
Protein
p.Leu294=
Coding
c.880T>C
MANE Select
NM_022437
dbSNP
rs774971723
Type
single nucleotide variant
Location
chr2:43852784 (GRCh38)
Gene constraint
LOEUF 1.329 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure
AlphaFold pLDDT 80.94 · 8 PDB
Residue 294
the abc transporter domain; a β-strand
Full ABCG8 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/abcg8-p-leu294 (accessed [today's date]).

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