Is FBXO7 p.Ala84= (c.252G>A) pathogenic?

FBXO7 p.Ala84= (c.252G>A) is classified Likely benign in FBXO7 (ClinVar, Single submitter, 1 submitter; last evaluated 2024-01-16). Very rare (popmax 0.00933%, afr); Associated with parkinsonian-pyramidal syndrome.

What condition is associated with FBXO7 p.Ala84= (c.252G>A)?

FBXO7 p.Ala84= (c.252G>A) is associated with parkinsonian-pyramidal syndrome (ClinVar).

How common is FBXO7 p.Ala84= (c.252G>A) in the general population?

FBXO7 p.Ala84= (c.252G>A) is very rare (popmax 0.00933%, afr) (gnomAD).

How is Parkinsonian-pyramidal syndrome inherited?

Typically Autosomal recessive (Orphanet). A genetic counselor can assess individual risk for a family.

FBXO7 p.Ala84=

c.252G>A · rs572633515 · VCV2721916

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

very rare (popmax 0.00933%, afr)

Conditions

parkinsonian-pyramidal syndrome

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 4.4	GERP -0.93, phastCons 1
Overall
CADD	13.96	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00933% African / African-American · 7/75,006 alleles

Filtering AF 0.00437% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00308%

Overall 0.00198% 32/1,614,092 alleles · very rare exomes 27/1,461,892 · genomes 5/152,200 · joint denominator

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.00933%	10,715
Remaining individualsnot grpmax-eligible	0.0048%	20,836
East Asian	0.00223%	44,870
Admixed American	0.00167%	60,022
European (non-Finnish)	0.00161%	62,106
South Asian	0.0011%	91,072

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: FBXO7
Protein: p.Ala84=
Coding: c.252G>A
MANE Select: NM_012179
dbSNP: rs572633515
Type: single nucleotide variant
Location: chr22:32479110 (GRCh38)
Gene constraint: LOEUF 0.955 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure: AlphaFold pLDDT 67.13 · 2 PDB
Residue 84: the 'ubiquitin-like' region

Full FBXO7 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

parkinsonian-pyramidal syndrome — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Parkinsonian-pyramidal syndrome (Orphanet):

Inheritance: Autosomal recessive
Onset: Adolescent, Adult

Similar variants

FBXO7 p.Ala84Val Uncertain significance ★★ ⚠ same residue
FBXO7 p.Arg321Ter Pathogenic/Likely pathogenic ★★ same condition
FBXO7 p.Arg345Ter Pathogenic/Likely pathogenic ★★ same condition
FBXO7 p.Arg381Ter Pathogenic/Likely pathogenic ★★ same condition
FBXO7 p.Arg45Ter Pathogenic/Likely pathogenic ★★ same condition
FBXO7 p.Arg498Ter Pathogenic ★★ same condition
FBXO7 p.Gln237Ter Pathogenic/Likely pathogenic ★★ same condition
FBXO7 p.Thr22Met Pathogenic/Likely pathogenic ★★ same condition

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/fbxo7-p-ala84 (accessed [today's date]).

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