Is DEPDC5 p.Ala452Val (c.1355C>T) pathogenic?

DEPDC5 p.Ala452Val (c.1355C>T) is classified Benign/Likely benign in DEPDC5 (ClinVar, Multiple submitters, 6 submitters; last evaluated 2026-03-01). AlphaMissense: likely benign (0.0966); Very rare (popmax 0.00492%, nfe); Associated with familial focal epilepsy with variable foci.

What condition is associated with DEPDC5 p.Ala452Val (c.1355C>T)?

DEPDC5 p.Ala452Val (c.1355C>T) is associated with familial focal epilepsy with variable foci, epilepsy, familial focal, with variable foci 1 (ClinVar).

How common is DEPDC5 p.Ala452Val (c.1355C>T) in the general population?

DEPDC5 p.Ala452Val (c.1355C>T) is very rare (popmax 0.00492%, nfe) (gnomAD).

How is Familial focal epilepsy with variable foci inherited?

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

What do computational predictors say about DEPDC5 p.Ala452Val (c.1355C>T)?

AlphaMissense predicts likely benign (score 0.0966) — an in-silico prediction, not a clinical call.

DEPDC5 p.Ala452Val

c.1355C>T · rs202226316 · VCV264756

Benign/Likely benign Multiple submitters

Classification

Benign/Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 6 submitters

AlphaMissense

likely benign

0.0966 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00492%, nfe)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

familial focal epilepsy with variable foci

Computational evidence

Protein change
AlphaMissense	0.0966	likely benign
REVEL	0.097	moderately benign-leaning
SaProt	LLR -5.93	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 7.7	GERP 4.1, phastCons 0.97
Regional constraint	o/e 0.82	unconstrained · MANE · 64 kb · p 1.2e-06 · regional, not allelic
Overall
CADD	23.8	PHRED · no single calibrated threshold — expert panels disagree

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

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00492% European (non-Finnish) · 58/1,180,032 alleles

Filtering AF 0.00386% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00353%

Overall 0.0247% 398/1,613,984 alleles · very rare

Ancestry group	Frequency	1 in
Ashkenazi Jewishnot grpmax-eligible	1%	100
Remaining individualsnot grpmax-eligible	0.0688%	1,453
European (non-Finnish)grpmax	0.00492%	20,345
Admixed American	0.00167%	59,968

Ashkenazi Jewish shows a higher raw frequency than the grpmax group above it. gnomAD excludes bottlenecked groups — Finnish, Ashkenazi Jewish, Amish and “Remaining individuals” — from grpmax, because founder effects make their frequencies unrepresentative for filtering. The table is sorted by frequency, so an excluded group can sit above the grpmax row.

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: DEPDC5
Protein: p.Ala452Val
Coding: c.1355C>T
MANE Select: NM_001242896
dbSNP: rs202226316
Type: single nucleotide variant
Location: chr22:31810551 (GRCh38)
Gene constraint: LOEUF 0.403 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure: AlphaFold pLDDT 65.22 · 11 PDB
Residue 452: a UniProt-annotated variant site (in ffevf1; inhibits slightly depdc5 signaling; stimulates slightly kinase activity of mtorc1; does not change association with the gator complex; does not change rraga/rragc and rragb/rragc heterodimer formation)

Full DEPDC5 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

familial focal epilepsy with variable foci — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: epilepsy, familial focal, with variable foci 1

For Familial focal epilepsy with variable foci (Orphanet):

Inheritance: Autosomal dominant
Onset: Adolescent, Adult, Childhood, Infancy

Similar variants

DEPDC5 p.Ala452Thr Uncertain significance ★★ ⚠ same residue
DEPDC5 p.Ala452Ser Uncertain significance ★ ⚠ same residue
DEPDC5 c.1218-1G>A Pathogenic ★★ same condition
DEPDC5 c.1287+1G>A Pathogenic/Likely pathogenic ★★ same condition
DEPDC5 c.1324+1G>A Likely pathogenic ★★ same condition
DEPDC5 c.1324+1G>T Likely pathogenic ★★ same condition
DEPDC5 c.193+1G>T Pathogenic/Likely pathogenic ★★ same condition
DEPDC5 c.2105-1G>A 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/depdc5-p-ala452val (accessed [today's date]).

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