The KIF27 protein is a kinesin motor protein that plays an essential role in motile ciliogenesis and functions in the Hedgehog signaling pathway through its motor domain that binds nucleotides and interacts with microtubules. Mutations cause autosomal dominant disease through a dominant-negative mechanism. The extremely low pLI score suggests this gene is highly tolerant to loss-of-function variants.

OMIMResearchSummary from RefSeq, UniProt, Mechanism
MultiplemechanismLOEUF 0.90
Clinical SummaryKIF27
Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.
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ClinVar Variants
27 unique Pathogenic / Likely Pathogenic· 188 VUS of 257 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
0.90LOEUF
pLI 0.000
Z-score 2.27
OE 0.70 (0.560.90)
Tolerant

Typical tolerance to LoF variation

Missense Constraint
0.53Z-score
OE missense 0.94 (0.891.01)
672 obs / 711.7 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.70 (0.560.90)
00.351.4
Missense OE0.94 (0.891.01)
00.61.4
Synonymous OE0.99
01.21.6
LoF obs/exp: 48 / 68.2Missense obs/exp: 672 / 711.7Syn Z: 0.14
DN
0.76top 25%
GOF
0.6735th %ile
LOF
0.3261th %ile

This gene has evidence for multiple mechanisms of pathogenicity (dominant-negative and gain-of-function). Both the Badonyi & Marsh prediction and the broader genomic evidence point to dominant-negative as the predominant mechanism. Different variants in this gene may act through different mechanisms — interpret in context of the specific variant.

DNprediction above median
GOFprediction above median

Note: In-silico variant effect predictors (SIFT, PolyPhen, REVEL, CADD) may underestimate pathogenicity of missense variants in genes with GOF or DN mechanisms. Consider functional evidence and clinical context.

Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.

ClinVar Variant Classifications

257 submitted variants in ClinVar

Classification Summary

Pathogenic23
Likely Pathogenic4
VUS188
Likely Benign11
Benign9
23
Pathogenic
4
Likely Pathogenic
188
VUS
11
Likely Benign
9
Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
23
0
23
Likely Pathogenic
0
0
4
0
4
VUS
0
184
4
0
188
Likely Benign
0
10
0
1
11
Benign
0
4
1
4
9
Total0198325235

LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly

View in ClinVar →

Protein Context — Lollipop Plot

KIF27 · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

3D Protein StructureAlphaFold

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

Search ClinicalTrials.gov →
Clinical Literature
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Recent Gene-Specific Literature
Gene in title · MEDLINE · newest first
Europe PMC