FKBP15

Chr 9

FKBP prolyl isomerase family member 15

Also known as: FKBP133, KIAA0674, PPP1R76

FKBP15 encodes a protein that binds actin and regulates cytoskeletal organization in neuronal growth cones, while also facilitating early endosome transport between microfilament-based and microtubule-based movement systems. Mutations cause neurodevelopmental disorders through a dominant-negative mechanism. The inheritance pattern and specific associated diseases are not established from the available data.

OMIMResearchSummary from RefSeq, UniProt, Mechanism
LOFmechanismLOEUF 0.61
Clinical SummaryFKBP15
Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
0.61LOEUF
pLI 0.000
Z-score 4.23
OE 0.45 (0.340.61)
Tolerant

Typical tolerance to LoF variation

Missense Constraint
1.58Z-score
OE missense 0.83 (0.770.89)
536 obs / 649.3 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.45 (0.340.61)
00.351.4
Missense OE0.83 (0.770.89)
00.61.4
Synonymous OE0.97
01.21.6
LoF obs/exp: 31 / 68.9Missense obs/exp: 536 / 649.3Syn Z: 0.37
Curated Mechanism (G2P)Gene2Phenotype (DDG2P) ↗
definitiveFKBP15-related Wiskott-Aldrich syndromeLOFAD
DN
0.6648th %ile
GOF
0.5660th %ile
LOF
0.3454th %ile

The highest-scoring mechanism for this gene is dominant-negative.

DNprediction 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

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

FKBP15 · 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 →