Is ABCA7 p.Ala634= (c.1902C>T) pathogenic?

ABCA7 p.Ala634= (c.1902C>T) is classified Likely benign in ABCA7 (ClinVar, Single submitter, 1 submitter; last evaluated 2018-12-19). Ultra-rare (popmax 0.0428%, afr).

How common is ABCA7 p.Ala634= (c.1902C>T) in the general population?

ABCA7 p.Ala634= (c.1902C>T) is ultra-rare (popmax 0.0428%, afr) (gnomAD).

ABCA7 p.Ala634=

c.1902C>T · rs374324671 · VCV796852

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

ultra-rare (popmax 0.0428%, afr)

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 -0.067	GERP -3.4, phastCons 0.016
Overall
CADD	5.657	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0428% African / African-American · 32/74,834 alleles

Filtering AF 0.031% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0271%

Overall 0.00224% 36/1,609,022 alleles · ultra-rare

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.0428%	2,339
Admixed American	0.00334%	29,921
East Asian	0.00223%	44,838
Remaining individualsnot grpmax-eligible	0.0016%	62,388

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.Ala634=
Coding: c.1902C>T
MANE Select: NM_019112
dbSNP: rs374324671
Type: single nucleotide variant
Location: chr19:1047213 (GRCh38)
Gene constraint: LOEUF 1.368 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 75.77 · 6 PDB

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

Similar variants

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ABCA7 p.Arg1026Cys Uncertain significance ★★ ⚠ same type
ABCA7 p.Arg652Cys Uncertain significance ★★ ⚠ same type
ABCA7 p.Arg880Trp Uncertain significance ★★ ⚠ same type
ABCA7 p.Asp1452Asn Uncertain significance ★★ ⚠ same type
ABCA7 p.Asp2085Asn Uncertain significance ★★ ⚠ same type
ABCA7 p.Gln925Ter 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/abca7-p-ala634 (accessed [today's date]).

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