Is SBF2 p.Pro1215Arg (c.3644C>G) pathogenic?

SBF2 p.Pro1215Arg (c.3644C>G) is classified Uncertain significance in SBF2 (ClinVar, Single submitter, 1 submitter; last evaluated 2019-08-06). AlphaMissense: likely benign (0.2149); Absent from gnomAD v4.1; Associated with Charcot-Marie-Tooth disease type 4.

What condition is associated with SBF2 p.Pro1215Arg (c.3644C>G)?

SBF2 p.Pro1215Arg (c.3644C>G) is associated with Charcot-Marie-Tooth disease type 4 (ClinVar).

How common is SBF2 p.Pro1215Arg (c.3644C>G) in the general population?

SBF2 p.Pro1215Arg (c.3644C>G) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about SBF2 p.Pro1215Arg (c.3644C>G)?

AlphaMissense predicts likely benign (score 0.2149) — an in-silico prediction, not a clinical call.

SBF2 p.Pro1215Arg

c.3644C>G · rs1855445153 · VCV961464

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.2149 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

0/2 damaging

AlphaMissense, SaProt · REVEL indeterminate

Conditions

Charcot-Marie-Tooth disease type 4

Computational evidence

Protein change
AlphaMissense	0.2149	likely benign
REVEL	0.34	indeterminate
SaProt	LLR -7.22	tolerated
⇒ AlphaMissense and SaProt both call this tolerated; REVEL is indeterminate.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 8.3	GERP 2.9, phastCons 1
Regional constraint	o/e 0.90	unconstrained · MANE · 514 kb · p 7.7e-06 · regional, not allelic
Overall
CADD	23.8	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — a triage signal, not a reclassification

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

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.Pro1215Arg
Coding: c.3644C>G
MANE Select: NM_030962
dbSNP: rs1855445153
Type: single nucleotide variant
Location: chr11:9832232 (GRCh38)
Gene constraint: LOEUF 0.591 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 73.74
Residue 1215: the myotubularin phosphatase 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-pro1215arg (accessed [today's date]).

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