Is CFH p.Ala173Gly (c.518C>G) pathogenic?

CFH p.Ala173Gly (c.518C>G) is classified Uncertain significance in CFH (ClinVar, Single submitter, 1 submitter; last evaluated 2026-09-17). AlphaMissense: likely benign (0.16); Absent from gnomAD v4.1; Associated with age related macular degeneration 4.

What condition is associated with CFH p.Ala173Gly (c.518C>G)?

CFH p.Ala173Gly (c.518C>G) is associated with age related macular degeneration 4 (ClinVar).

How common is CFH p.Ala173Gly (c.518C>G) in the general population?

CFH p.Ala173Gly (c.518C>G) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about CFH p.Ala173Gly (c.518C>G)?

AlphaMissense predicts likely benign (score 0.16) — an in-silico prediction, not a clinical call.

CFH p.Ala173Gly

c.518C>G · VCV4291292

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.16 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

0/2 damaging

AlphaMissense, SaProt · REVEL no call

Conditions

age related macular degeneration 4

Computational evidence

Protein change
AlphaMissense	0.16	likely benign
REVEL	0.558	indeterminate
SaProt	LLR -8.02	tolerated
⇒ AlphaMissense and SaProt both call this tolerated; REVEL makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 0.17	GERP -2.9, phastCons 0.025
Regional constraint	o/e 0.99	unconstrained · MANE · 28 kb · p 0.84 · regional, not allelic
Overall
CADD	6.704	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: CFH
Protein: p.Ala173Gly
Coding: c.518C>G
MANE Select: NM_000186
Type: single nucleotide variant
Location: chr1:196677566 (GRCh38)
Gene constraint: LOEUF 0.43 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 78.54 · 51 PDB
Residue 173: a β-strand; a disulfide bond; the sushi 3 domain

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

Disease context

age related macular degeneration 4 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

CFH c.1337-2A>G Likely pathogenic ★★ same condition
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CFH p.Arg1215Ter Pathogenic/Likely pathogenic ★★ same condition
CFH p.Arg53Cys Pathogenic/Likely pathogenic ★★ same condition
CFH p.Cys431Ser Likely pathogenic ★★ same condition
CFH p.Cys611Ter Pathogenic/Likely pathogenic ★★ same condition
CFH p.Gln859Ter Pathogenic/Likely pathogenic ★★ same condition
CFH p.Glu625Ter 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/cfh-p-ala173gly (accessed [today's date]).

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