Is SBF2 p.Ser268= (c.804C>T) pathogenic?

SBF2 p.Ser268= (c.804C>T) is classified Likely benign in SBF2 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-07-28). Absent from gnomAD v4.1; Associated with Charcot-Marie-Tooth disease type 4.

What condition is associated with SBF2 p.Ser268= (c.804C>T)?

SBF2 p.Ser268= (c.804C>T) is associated with Charcot-Marie-Tooth disease type 4 (ClinVar).

How common is SBF2 p.Ser268= (c.804C>T) in the general population?

SBF2 p.Ser268= (c.804C>T) is absent from gnomAD v4.1 (gnomAD).

SBF2 p.Ser268=

c.804C>T · rs763567646 · VCV1136900

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Absent

absent from gnomAD v4.1

Conditions

Charcot-Marie-Tooth disease type 4

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	<0.2	no splice effect predicted · four deltas, not one · how we know
Constraint at this position
Conservation	phyloP -0.081	GERP -1.4, phastCons 0.13
Overall
CADD	5.95	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: SBF2
Protein: p.Ser268=
Coding: c.804C>T
MANE Select: NM_030962
dbSNP: rs763567646
Type: single nucleotide variant
Location: chr11:10000971 (GRCh38)
Gene constraint: LOEUF 0.591 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 73.74
Residue 268: the cdenn domain

Full SBF2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

Charcot-Marie-Tooth disease type 4 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

SBF2 c.3653-1G>A Likely pathogenic ★★ same condition
SBF2 p.Arg342Ter Pathogenic/Likely pathogenic ★★ same condition
SBF2 p.Arg356Ter Pathogenic ★★ same condition
SBF2 p.Arg487Ter Pathogenic ★★ same condition
SBF2 p.Arg77Ter Pathogenic ★★ same condition
SBF2 c.1601-3T>G Uncertain significance ★★ same condition
SBF2 c.3111-3T>C Uncertain significance ★★ same condition
SBF2 c.3652+5G>A 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/sbf2-p-ser268 (accessed [today's date]).

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