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KIF23 p.Val28=

c.84A>G · rs149437651 · VCV2918503

Benign Single submitter
Classification
Benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0605%, afr)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI<0.2no splice effect predicted · four deltas, not one · how we know
Constraint at this position
ConservationphyloP -1.6GERP -3.5
Overall
CADD1.57PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0605% African / African-American · 45/74,408 alleles
Filtering AF 0.0464% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0415%
Overall 0.00388% 62/1,598,048 alleles · ultra-rare exomes 27/1,445,696 · genomes 35/152,352 · joint denominator
Ancestry group Frequency 1 in
African / African-Americangrpmax 0.0605% 1,654
Admixed American 0.023% 4,346
Remaining individualsnot grpmax-eligible 0.00647% 15,458

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
KIF23
Protein
p.Val28=
Coding
c.84A>G
MANE Select
NM_001367805
dbSNP
rs149437651
Type
single nucleotide variant
Location
chr15:69417385 (GRCh38)
Gene constraint
LOEUF 0.279 · pLI 1.00 (gnomAD)
Structure
AlphaFold pLDDT 73.08 · 1 PDB
Residue 28
the kinesin motor domain
Full KIF23 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/kif23-p-val28 (accessed [today's date]).

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