Is INF2 p.Lys673Arg (c.2018A>G) pathogenic?

INF2 p.Lys673Arg (c.2018A>G) is classified Uncertain significance in INF2 (ClinVar, Single submitter, 1 submitter; last evaluated 2024-03-18). AlphaMissense: likely benign (0.0992); Absent from gnomAD v4.1; Associated with focal segmental glomerulosclerosis 5.

What condition is associated with INF2 p.Lys673Arg (c.2018A>G)?

INF2 p.Lys673Arg (c.2018A>G) is associated with focal segmental glomerulosclerosis 5, Charcot-Marie-Tooth disease dominant intermediate E (ClinVar).

How common is INF2 p.Lys673Arg (c.2018A>G) in the general population?

INF2 p.Lys673Arg (c.2018A>G) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about INF2 p.Lys673Arg (c.2018A>G)?

AlphaMissense predicts likely benign (score 0.0992) — an in-silico prediction, not a clinical call.

INF2 p.Lys673Arg

c.2018A>G · VCV3576460

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0992 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

0/2 damaging

AlphaMissense, SaProt · REVEL indeterminate

Conditions

focal segmental glomerulosclerosis 5

Computational evidence

Protein change
AlphaMissense	0.0992	likely benign
REVEL	0.306	indeterminate
SaProt	LLR -6.95	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 4.3	GERP 6.8, phastCons 1
Regional constraint	o/e 0.70	unconstrained · MANE · 3,038 bp · p 6.5e-07 · regional, not allelic
Overall
CADD	22.0	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: INF2
Protein: p.Lys673Arg
Coding: c.2018A>G
MANE Select: NM_022489
Type: single nucleotide variant
Location: chr14:104709349 (GRCh38)
Gene constraint: LOEUF 0.526 · pLI 0.33 · ClinGen HI 0/3 (gnomAD)
Structure: AlphaFold pLDDT 67.34 · 10 PDB
Residue 673: the fh2 domain; an α-helix

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.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
INF2 p.Glu184Lys 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-lys673arg (accessed [today's date]).

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