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CFD p.His184=

c.552C>T · rs1279223875 · VCV2778667

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.000171%, nfe)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP 0.4GERP -0.51, phastCons 0.058
Overall
CADD7.94PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.000171% European (non-Finnish) · 2/1,172,002 alleles
Filtering AF 2.8e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 1.1e-05%
Overall 0.00014% 2/1,431,624 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
CFD
Protein
p.His184=
Coding
c.552C>T
MANE Select
NM_001928
dbSNP
rs1279223875
Type
single nucleotide variant
Location
chr19:861893 (GRCh38)
Gene constraint
LOEUF 1.948 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure
AlphaFold pLDDT 91.19 · 40 PDB
Residue 184
a disulfide bond; the peptidase s1 domain; a turn
Full CFD gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

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/cfd-p-his184 (accessed [today's date]).

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