Is ABCA7 p.Pro918Arg (c.2753C>G) pathogenic?

ABCA7 p.Pro918Arg (c.2753C>G) is classified Uncertain significance in ABCA7 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-09-10). AlphaMissense: likely benign (0.081); Very rare (popmax 0.0033%, sas).

How common is ABCA7 p.Pro918Arg (c.2753C>G) in the general population?

ABCA7 p.Pro918Arg (c.2753C>G) is very rare (popmax 0.0033%, sas) (gnomAD).

What do computational predictors say about ABCA7 p.Pro918Arg (c.2753C>G)?

AlphaMissense predicts likely benign (score 0.081) — an in-silico prediction, not a clinical call.

ABCA7 p.Pro918Arg

c.2753C>G · rs899621063 · VCV2559387

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.081 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.0033%, sas)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.081	likely benign
REVEL	0.202	benign-leaning
SaProt	LLR -9.00	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 0.69	GERP -0.65
Regional constraint	o/e 1.14	unconstrained · MANE · 24 kb · p 5.6e-14 · regional, not allelic
Overall
CADD	14.6	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — a triage signal, not a reclassification

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

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0033% South Asian · 3/91,012 alleles

Filtering AF 0.000876% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000443%

Overall 0.000686% 10/1,458,446 alleles · very rare

Ancestry group	Frequency	1 in
South Asiangrpmax	0.0033%	30,337
African / African-American	0.00133%	75,040
European (non-Finnish)	0.000509%	196,624

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: ABCA7
Protein: p.Pro918Arg
Coding: c.2753C>G
MANE Select: NM_019112
dbSNP: rs899621063
Type: single nucleotide variant
Location: chr19:1051223 (GRCh38)
Gene constraint: LOEUF 1.368 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 75.77 · 6 PDB
Residue 918: an α-helix; the abc transporter 1 domain

Full ABCA7 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

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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/abca7-p-pro918arg (accessed [today's date]).

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