Is C5 p.Pro584Leu (c.1751C>T) pathogenic?

C5 p.Pro584Leu (c.1751C>T) is classified Uncertain significance in C5 (ClinVar, Single submitter, 1 submitter; last evaluated 2022-01-17). AlphaMissense: ambiguous (0.4775); Very rare (popmax 0.00223%, eas).

How common is C5 p.Pro584Leu (c.1751C>T) in the general population?

C5 p.Pro584Leu (c.1751C>T) is very rare (popmax 0.00223%, eas) (gnomAD).

What do computational predictors say about C5 p.Pro584Leu (c.1751C>T)?

AlphaMissense predicts ambiguous (score 0.4775) — an in-silico prediction, not a clinical call.

C5 p.Pro584Leu

c.1751C>T · rs2540429449 · VCV1913658

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

ambiguous

0.4775 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00223%, eas)

Missense predictors

2/2 damaging

REVEL, SaProt · AlphaMissense no call

Computational evidence

Protein change
AlphaMissense	0.4775	ambiguous
REVEL	0.739	pathogenic-leaning
SaProt	LLR -12.21	damaging
⇒ REVEL and SaProt both call this damaging; AlphaMissense makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 9.9	GERP 1.8, phastCons 1
Regional constraint	o/e 0.86	unconstrained · MANE · 98 kb · p 1.2e-09 · regional, not allelic
Overall
CADD	27.8	PHRED · no single calibrated threshold — expert panels disagree

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00223% East Asian · 1/44,886 alleles

Overall 6.84e-05% 1/1,461,506 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: C5
Protein: p.Pro584Leu
Coding: c.1751C>T
MANE Select: NM_001735
dbSNP: rs2540429449
Type: single nucleotide variant
Location: chr9:121017477 (GRCh38)
Gene constraint: LOEUF 0.779 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 81.67 · 49 PDB
Residue 584: a disulfide bond; a UniProt-annotated variant site (in c5d)

Full C5 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

C5 c.2257+1G>A Likely pathogenic ★★ same type
C5 c.4679-2A>G Likely pathogenic ★★ same type
C5 p.Arg1476Ter Pathogenic/Likely pathogenic ★★ same type
C5 p.Gln19Ter Pathogenic ★★ same type
C5 p.Glu1437Ter Pathogenic/Likely pathogenic ★★ same type
C5 p.Trp469Ter Pathogenic/Likely pathogenic ★★ same type
C5 c.2059+3A>G Uncertain significance ★★ same type
C5 c.3391-13T>A 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/c5-p-pro584leu (accessed [today's date]).

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