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CFAP99 p.Lys43Glu

c.127A>G · VCV4227263

Uncertain significance Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.0027%, nfe)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI<0.2all four deltas below 0.2 · A>T here scores Δ0.22 · evaluated, not missing
Constraint at this position
ConservationphyloP 1.7GERP 0.14, phastCons 0.98
Regional constrainto/e 1.08unconstrained · MANE · 36 kb · p 0.016 · regional, not allelic
Overall
CADD9.248PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0027% European (non-Finnish) · 31/1,146,792 alleles
Filtering AF 0.00194% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00169%
Overall 0.00208% 32/1,535,680 alleles · very rare
Ancestry group Frequency 1 in
European (non-Finnish)grpmax 0.0027% 36,993
Finnishnot grpmax-eligible 0.00225% 44,464

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
CFAP99
Protein
p.Lys43Glu
Coding
c.127A>G
MANE Select
NM_001193282
Type
single nucleotide variant
Location
chr4:2436889 (GRCh38)
Gene constraint
LOEUF 1.203 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 77.28
Full CFAP99 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/cfap99-p-lys43glu (accessed [today's date]).

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