Is FBXO7 p.Asp136= (c.408C>T) pathogenic?

FBXO7 p.Asp136= (c.408C>T) is classified Likely benign in FBXO7 (ClinVar, Single submitter, 1 submitter; last evaluated 2024-01-31). Ultra-rare (popmax 0.0164%, mid); Associated with parkinsonian-pyramidal syndrome.

What condition is associated with FBXO7 p.Asp136= (c.408C>T)?

FBXO7 p.Asp136= (c.408C>T) is associated with parkinsonian-pyramidal syndrome (ClinVar).

How common is FBXO7 p.Asp136= (c.408C>T) in the general population?

FBXO7 p.Asp136= (c.408C>T) is ultra-rare (popmax 0.0164%, mid) (gnomAD).

How is Parkinsonian-pyramidal syndrome inherited?

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

FBXO7 p.Asp136=

c.408C>T · rs776288097 · VCV2742339

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

ultra-rare (popmax 0.0164%, mid)

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 -3.2	GERP -5.1
Overall
CADD	7.391	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0164% Middle Eastern · 1/6,084 alleles

Filtering AF 0.00724% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00551%

Overall 0.00328% 53/1,613,856 alleles · ultra-rare exomes 44/1,461,862 · genomes 9/151,994 · joint denominator

Ancestry group	Frequency	1 in
Middle Easterngrpmax	0.0164%	6,084
African / African-American	0.0134%	7,482
East Asian	0.00668%	14,965
European (non-Finnish)	0.00297%	33,715
South Asian	0.0022%	45,533
Admixed American	0.00167%	59,984
Remaining individualsnot grpmax-eligible	0.0016%	62,480

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.Asp136=
Coding: c.408C>T
MANE Select: NM_012179
dbSNP: rs776288097
Type: single nucleotide variant
Location: chr22:32479266 (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 136: the 'disordered' region; the 'important for interaction with cdk6' 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.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
FBXO7 p.Ala84Val Uncertain significance ★★ ⚠ 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-asp136 (accessed [today's date]).

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