Is ABCB4 p.Glu112Ter (c.334G>T) pathogenic?

ABCB4 p.Glu112Ter (c.334G>T) is classified Likely pathogenic in ABCB4 (ClinVar, Single submitter, 1 submitter; last evaluated 2024-03-26). Absent from gnomAD v4.1; Associated with cholestasis, intrahepatic, of pregnancy, 3.

What condition is associated with ABCB4 p.Glu112Ter (c.334G>T)?

ABCB4 p.Glu112Ter (c.334G>T) is associated with cholestasis, intrahepatic, of pregnancy, 3 (ClinVar).

How common is ABCB4 p.Glu112Ter (c.334G>T) in the general population?

ABCB4 p.Glu112Ter (c.334G>T) is absent from gnomAD v4.1 (gnomAD).

How is Intrahepatic cholestasis of pregnancy inherited?

Typically Multigenic/multifactorial, Not applicable (Orphanet). A genetic counselor can assess individual risk for a family.

ABCB4 p.Glu112Ter

c.334G>T · rs1204857679 · VCV3065138

Likely pathogenic Single submitter

Classification

Likely pathogenic

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

Consequence

nonsense (stop-gain)

predicted LoF

gnomAD v4.1

Absent

absent from gnomAD v4.1

Conditions

cholestasis, intrahepatic, of pregnancy, 3

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Consequence	nonsense (stop-gain)	predicted loss-of-function in a haploinsufficient gene (ClinGen)
NMD	predicted	premature termination codon in exon 5 of 28
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Pangolin	Δ0.42	loss · gain 0.00 · not in the SpliceAI release · independent
Constraint at this position
Conservation	phyloP 7.6	GERP 1.9, phastCons 1
Overall
CADD	41.0	PHRED · no single calibrated threshold — expert panels disagree

Predicted loss-of-function is descriptive, not an applied PVS1 code.

Population frequency

gnomAD v4.1 · exomes + genomes

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: ABCB4
Protein: p.Glu112Ter
Coding: c.334G>T
MANE Select: NM_000443
dbSNP: rs1204857679
Type: single nucleotide variant
Location: chr7:87454545 (GRCh38)
Gene constraint: LOEUF 0.623 · pLI <0.01 · ClinGen HI 3/3 (gnomAD)
Structure: AlphaFold pLDDT 83.36 · 4 PDB
Residue 112: an α-helix; the abc transmembrane type-1 1 domain

Full ABCB4 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

cholestasis, intrahepatic, of pregnancy, 3 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Intrahepatic cholestasis of pregnancy (Orphanet):

Inheritance: Multigenic/multifactorial, Not applicable
Onset: Adult

Similar variants

ABCB4 p.Glu112Gln Uncertain significance ★ ⚠ same residue
ABCB4 c.2211+1G>A Pathogenic/Likely pathogenic ★★ same condition
ABCB4 c.2682+1G>A Pathogenic/Likely pathogenic ★★ same condition
ABCB4 c.3486+1G>A Pathogenic/Likely pathogenic ★★ same condition
ABCB4 c.834-1G>A Pathogenic/Likely pathogenic ★★ same condition
ABCB4 p.Arg1046Ter Pathogenic/Likely pathogenic ★★ same condition
ABCB4 p.Arg144Ter Pathogenic ★★ same condition
ABCB4 p.Arg159Ter Pathogenic ★★ same condition

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-glu112ter (accessed [today's date]).

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