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ABCB4 p.Leu1198=

c.3592T>C · rs2546738991 · VCV2856595

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.000339%, nfe)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
REVEL0.24benign-leaning
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP -0.72GERP -3.7
Overall
CADD2.999PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.000339% European (non-Finnish) · 4/1,179,930 alleles
Filtering AF 7.9e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 5.4e-05%
Overall 0.000274% 4/1,461,850 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
ABCB4
Protein
p.Leu1198=
Coding
c.3592T>C
MANE Select
NM_000443
dbSNP
rs2546738991
Type
single nucleotide variant
Location
chr7:87403176 (GRCh38)
Gene constraint
LOEUF 0.623 · pLI <0.01 · ClinGen HI 3/3 (gnomAD)
Structure
AlphaFold pLDDT 83.36 · 4 PDB
Residue 1198
the abc transporter 2 domain
Full ABCB4 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/abcb4-p-leu1198 (accessed [today's date]).

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