Is ABCB7 p.Val268= (c.804A>G) pathogenic?

ABCB7 p.Val268= (c.804A>G) is classified Benign in ABCB7 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-03-23). Rare (popmax 0.273%, eas).

How common is ABCB7 p.Val268= (c.804A>G) in the general population?

ABCB7 p.Val268= (c.804A>G) is rare (popmax 0.273%, eas) (gnomAD).

ABCB7 p.Val268=

c.804A>G · rs185344133 · VCV2956661

Benign Single submitter

Classification

Benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

rare (popmax 0.273%, eas)

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
Conservation	phyloP -0.47	GERP -4.1, phastCons 0.12
Overall
CADD	4.248	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.273% East Asian · 92/33,731 alleles

Filtering AF 0.228% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.211%

Overall 0.0081% 98/1,209,668 alleles · rare

Ancestry group	Frequency	1 in
East Asiangrpmax	0.273%	367
Remaining individualsnot grpmax-eligible	0.0126%	7,935

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: ABCB7
Protein: p.Val268=
Coding: c.804A>G
MANE Select: NM_001271696
dbSNP: rs185344133
Type: single nucleotide variant
Location: chrX:75075413 (GRCh38)
Structure: AlphaFold pLDDT 78.19 · 4 PDB
Residue 268: the abc transmembrane type-1 domain; an α-helix

Full ABCB7 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

ABCB7 c.1659+5T>G Uncertain significance ★★ same type
ABCB7 c.1935+5G>C Uncertain significance ★★ same type
ABCB7 p.Ala5Glu Uncertain significance ★★ ⚠ same type
ABCB7 p.Arg711His Uncertain significance ★★ ⚠ same type
ABCB7 p.Asn378Asp Uncertain significance ★★ ⚠ same type
ABCB7 p.Asp653Asn Uncertain significance ★★ ⚠ same type
ABCB7 p.Glu494Gln Uncertain significance ★★ ⚠ same type
ABCB7 p.Gly197Cys 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/abcb7-p-val268 (accessed [today's date]).

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