Is FLNA p.Val836= (c.2508C>A) pathogenic?

FLNA p.Val836= (c.2508C>A) is classified Likely benign in FLNA (ClinVar, Single submitter, 2 submitters; last evaluated 2021-05-11). No allele count reported in gnomAD v4.1 (AN 1,211,877); Associated with heterotopia, periventricular, X-linked dominant.

What condition is associated with FLNA p.Val836= (c.2508C>A)?

FLNA p.Val836= (c.2508C>A) is associated with heterotopia, periventricular, X-linked dominant, otopalatodigital syndrome type 2, Melnick-Needles syndrome (ClinVar).

How common is FLNA p.Val836= (c.2508C>A) in the general population?

FLNA p.Val836= (c.2508C>A) is no allele count reported in gnomAD v4.1 (AN 1,211,877) (gnomAD).

FLNA p.Val836=

c.2508C>A · rs2148114406 · VCV1554264

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 2 submitters

gnomAD v4.1

Not reported

no allele count reported in gnomAD v4.1 (AN 1,211,877)

Conditions

heterotopia, periventricular, X-linked dominant

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation/SpliceAI carries the signal.
Splicing
SpliceAI	Δ0.92	donor gain · deltas
Pangolin	Δ0.74	gain · loss 0.00 · agrees with SpliceAI · independent
Constraint at this position
Conservation	phyloP 0.98	GERP 0.47, phastCons 1
Overall
CADD	20.9	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

No allele count reported in gnomAD v4.1 (AN 1,211,877). This is missing data, not an absence: the variant may or may not be present in gnomAD. Rarity (ACMG PM2) and BA1/BS1 cannot be assessed for it.

Variant & gene context

Gene: FLNA
Protein: p.Val836=
Coding: c.2508C>A
MANE Select: NM_001110556
dbSNP: rs2148114406
Type: single nucleotide variant
Location: chrX:154362475 (GRCh38)
Structure: AlphaFold pLDDT 77.37 · 26 PDB

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

Disease context

heterotopia, periventricular, X-linked dominant — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: otopalatodigital syndrome type 2 Melnick-Needles syndrome frontometaphyseal dysplasia

Similar variants

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FLNA c.4598+1G>A Pathogenic/Likely pathogenic ★★ same condition
FLNA c.5417-2A>G Likely pathogenic ★★ same condition
FLNA c.868+1G>A Likely pathogenic ★★ same condition
FLNA c.987+1G>A Likely pathogenic ★★ same condition
FLNA p.Ala1188Thr Pathogenic/Likely pathogenic ★★ same condition
FLNA p.Arg1515Ter 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/flna-p-val836 (accessed [today's date]).

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