Is ABCB10 p.Phe439Leu (c.1317C>A) pathogenic?

ABCB10 p.Phe439Leu (c.1317C>A) is classified Uncertain significance in ABCB10 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-08-27). AlphaMissense: likely pathogenic (0.9233); Very rare (popmax 0.0022%, nfe).

How common is ABCB10 p.Phe439Leu (c.1317C>A) in the general population?

ABCB10 p.Phe439Leu (c.1317C>A) is very rare (popmax 0.0022%, nfe) (gnomAD).

What do computational predictors say about ABCB10 p.Phe439Leu (c.1317C>A)?

AlphaMissense predicts likely pathogenic (score 0.9233) — an in-silico prediction, not a clinical call.

ABCB10 p.Phe439Leu

c.1317C>A · VCV4098536

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.9233 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.0022%, nfe)

Missense predictors

1/2 damaging

AlphaMissense, SaProt · REVEL no call

Computational evidence

Protein change
AlphaMissense	0.9233	likely pathogenic
REVEL	0.449	indeterminate
SaProt	LLR -5.19	tolerated
⇒ AlphaMissense calls this damaging; SaProt does not; REVEL makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 9.8	GERP 1.4, phastCons 1
Regional constraint	o/e 0.79	unconstrained · MANE · 40 kb · p 1.5e-09 · regional, not allelic
Overall
CADD	24.1	PHRED · no single calibrated threshold — expert panels disagree

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0022% European (non-Finnish) · 26/1,179,862 alleles

Filtering AF 0.00153% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0013%

Overall 0.00161% 26/1,613,818 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: ABCB10
Protein: p.Phe439Leu
Coding: c.1317C>A
MANE Select: NM_012089
Type: single nucleotide variant
Location: chr1:229539478 (GRCh38)
Gene constraint: LOEUF 1.142 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 81.37 · 6 PDB
Residue 439: the abc transmembrane type-1 domain; an α-helix

Full ABCB10 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

ABCB10 p.Asn478Lys Benign ★★ same type
ABCB10 p.Thr179= Benign ★★ same type
ABCB10 p.Ala110Pro Uncertain significance ★ ⚠ same type
ABCB10 p.Ala280Val Uncertain significance ★ ⚠ same type
ABCB10 p.Ala300Pro Uncertain significance ★ ⚠ same type
ABCB10 p.Ala388Gly Uncertain significance ★ ⚠ same type
ABCB10 p.Ala394Thr Uncertain significance ★ ⚠ same type
ABCB10 p.Ala461Val Uncertain significance ★ ⚠ same type

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/abcb10-p-phe439leu (accessed [today's date]).

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