Is F5 p.Ala143Pro (c.427G>C) pathogenic?

F5 p.Ala143Pro (c.427G>C) is classified Uncertain significance in F5 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-08-01). AlphaMissense: likely benign (0.1283); Very rare (popmax 0.000339%, nfe); Associated with Inborn genetic diseases.

What condition is associated with F5 p.Ala143Pro (c.427G>C)?

F5 p.Ala143Pro (c.427G>C) is associated with Inborn genetic diseases (ClinVar).

How common is F5 p.Ala143Pro (c.427G>C) in the general population?

F5 p.Ala143Pro (c.427G>C) is very rare (popmax 0.000339%, nfe) (gnomAD).

What do computational predictors say about F5 p.Ala143Pro (c.427G>C)?

AlphaMissense predicts likely benign (score 0.1283) — an in-silico prediction, not a clinical call.

F5 p.Ala143Pro

c.427G>C · VCV4252376

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1283 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.000339%, nfe)

Missense predictors

0/2 damaging

AlphaMissense, SaProt · REVEL indeterminate

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.1283	likely benign
REVEL	0.37	indeterminate
SaProt	LLR -4.81	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 1.9	GERP 1, phastCons 0.55
Regional constraint	o/e 0.92	unconstrained · MANE · 45 kb · p 0.00099 · regional, not allelic
Overall
CADD	14.39	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 0.000339% European (non-Finnish) · 4/1,179,768 alleles

Filtering AF 7.9e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 5.4e-05%

Overall 0.000248% 4/1,613,384 alleles · very rare exomes 4/1,461,260 · genomes 0/152,124 · joint denominator

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: F5
Protein: p.Ala143Pro
Coding: c.427G>C
MANE Select: NM_000130
Type: single nucleotide variant
Location: chr1:169560713 (GRCh38)
Gene constraint: LOEUF 0.704 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 62.57 · 23 PDB
Residue 143: the f5/8 type a 1 domain; the plastocyanin-like 1 domain

Full F5 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

Inborn genetic diseases — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

F5 p.Ala143Thr Uncertain significance ★ ⚠ same residue
F5 p.Arg441His Uncertain significance ★★ ⚠ same condition
F5 p.Asn1559Ser Uncertain significance ★★ ⚠ same condition
F5 p.Asn1575Ser Uncertain significance ★★ ⚠ same condition
F5 p.Asp1739Gly Uncertain significance ★★ ⚠ same condition
F5 p.Glu2029Asp Uncertain significance ★★ ⚠ same condition
F5 p.Glu48Gln Uncertain significance ★★ ⚠ same condition
F5 p.His812Tyr 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/f5-p-ala143pro (accessed [today's date]).

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