Is HGFAC p.Pro73Leu (c.218C>T) pathogenic?

HGFAC p.Pro73Leu (c.218C>T) is classified Uncertain significance in HGFAC (ClinVar, Single submitter, 1 submitter; last evaluated 2024-02-21). AlphaMissense: likely benign (0.0794); Very rare (popmax 0.00402%, nfe).

How common is HGFAC p.Pro73Leu (c.218C>T) in the general population?

HGFAC p.Pro73Leu (c.218C>T) is very rare (popmax 0.00402%, nfe) (gnomAD).

What do computational predictors say about HGFAC p.Pro73Leu (c.218C>T)?

AlphaMissense predicts likely benign (score 0.0794) — an in-silico prediction, not a clinical call.

HGFAC p.Pro73Leu

c.218C>T · rs1329756322 · VCV3105646

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0794 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00402%, nfe)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.0794	likely benign
REVEL	0.152	moderately benign-leaning
SaProt	LLR -7.85	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 0.5	GERP 0.82
Regional constraint	o/e 1.12	unconstrained · MANE · 7,414 bp · p 0.00031 · regional, not allelic
Overall
CADD	15.54	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

Grpmax group 0.00402% European (non-Finnish) · 47/1,170,328 alleles

Filtering AF 0.00309% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00277%

Overall 0.00295% 47/1,590,760 alleles · very rare

Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.

Variant & gene context

Gene: HGFAC
Protein: p.Pro73Leu
Coding: c.218C>T
MANE Select: NM_001528
dbSNP: rs1329756322
Type: single nucleotide variant
Location: chr4:3442832 (GRCh38)
Gene constraint: LOEUF 1.64 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 75.81 · 7 PDB
Residue 73: the 'disordered' region

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

Similar variants

HGFAC p.Ala121Pro Uncertain significance ★ ⚠ same type
HGFAC p.Ala268Ser Uncertain significance ★ ⚠ same type
HGFAC p.Ala274Thr Uncertain significance ★ ⚠ same type
HGFAC p.Ala327Val Uncertain significance ★ ⚠ same type
HGFAC p.Ala328Val Uncertain significance ★ ⚠ same type
HGFAC p.Ala356Val Uncertain significance ★ ⚠ same type
HGFAC p.Ala424Pro Uncertain significance ★ ⚠ same type
HGFAC p.Ala446Ser Uncertain significance ★ ⚠ same type

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/hgfac-p-pro73leu (accessed [today's date]).

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