Is INF2 p.Ser308Arg (c.924C>G) pathogenic?

INF2 p.Ser308Arg (c.924C>G) is classified Uncertain significance in INF2 (ClinVar, Single submitter, 1 submitter; last evaluated 2024-02-03). AlphaMissense: likely pathogenic (0.8081); Absent from gnomAD v4.1; Associated with focal segmental glomerulosclerosis 5.

What condition is associated with INF2 p.Ser308Arg (c.924C>G)?

INF2 p.Ser308Arg (c.924C>G) is associated with focal segmental glomerulosclerosis 5, Charcot-Marie-Tooth disease dominant intermediate E (ClinVar).

How common is INF2 p.Ser308Arg (c.924C>G) in the general population?

INF2 p.Ser308Arg (c.924C>G) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about INF2 p.Ser308Arg (c.924C>G)?

AlphaMissense predicts likely pathogenic (score 0.8081) — an in-silico prediction, not a clinical call.

INF2 p.Ser308Arg

c.924C>G · VCV3576440

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.8081 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

2/2 damaging

AlphaMissense, SaProt · REVEL indeterminate

Conditions

focal segmental glomerulosclerosis 5

Computational evidence

Protein change
AlphaMissense	0.8081	likely pathogenic
REVEL	0.543	indeterminate
SaProt	LLR -12.11	damaging
⇒ AlphaMissense and SaProt both call this damaging; REVEL is indeterminate.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 0.95	GERP 4.5, phastCons 1
Regional constraint	o/e 1.23	unconstrained · MANE · 929 bp · p 5.5e-05 · regional, not allelic
Overall
CADD	21.1	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean damaging — 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: INF2
Protein: p.Ser308Arg
Coding: c.924C>G
MANE Select: NM_022489
Type: single nucleotide variant
Location: chr14:104706990 (GRCh38)
Gene constraint: LOEUF 0.526 · pLI 0.33 · ClinGen HI 0/3 (gnomAD)
Structure: AlphaFold pLDDT 67.34 · 10 PDB
Residue 308: the gbd/fh3 domain

Full INF2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

focal segmental glomerulosclerosis 5 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: Charcot-Marie-Tooth disease dominant intermediate E

Similar variants

INF2 p.Ser308Asn Uncertain significance ★ ⚠ same residue
INF2 p.Arg177Cys Pathogenic/Likely pathogenic ★★ same condition
INF2 p.Arg214Cys Pathogenic/Likely pathogenic ★★ same condition
INF2 p.Arg214His Pathogenic/Likely pathogenic ★★ same condition
INF2 p.Arg218Gln Pathogenic/Likely pathogenic ★★ same condition
INF2 p.Arg218Trp Pathogenic/Likely pathogenic ★★ same condition
INF2 p.Arg91Gly Pathogenic/Likely pathogenic ★★ same condition
INF2 p.Asn202Asp 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/inf2-p-ser308arg (accessed [today's date]).

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