Is ABCB7 p.Pro88= (c.264A>G) pathogenic?

ABCB7 p.Pro88= (c.264A>G) is classified Likely benign in ABCB7 (ClinVar, Single submitter, 1 submitter; last evaluated 2022-12-01). Very rare (popmax 0.00381%, nfe).

How common is ABCB7 p.Pro88= (c.264A>G) in the general population?

ABCB7 p.Pro88= (c.264A>G) is very rare (popmax 0.00381%, nfe) (gnomAD).

ABCB7 p.Pro88=

c.264A>G · rs760045605 · VCV2660942

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

very rare (popmax 0.00381%, nfe)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	<0.2	no splice effect predicted · four deltas, not one · how we know
Constraint at this position
Conservation	phyloP -0.68	GERP -2.8, phastCons 0.007
Overall
CADD	6.768	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00381% European (non-Finnish) · 34/892,104 alleles

Filtering AF 0.00274% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00242%

Overall 0.0029% 35/1,205,883 alleles · very rare exomes 34/1,094,734 · genomes 1/111,149 · joint denominator

Ancestry group	Frequency	1 in
European (non-Finnish)grpmax	0.00381%	26,238
Remaining individualsnot grpmax-eligible	0.00211%	47,472

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.Pro88=
Coding: c.264A>G
MANE Select: NM_001271696
dbSNP: rs760045605
Type: single nucleotide variant
Location: chrX:75112955 (GRCh38)
Structure: AlphaFold pLDDT 78.19 · 4 PDB

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-pro88 (accessed [today's date]).

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