FKBP4
protein-codingFKBP prolyl isomerase 4, the group of FKBP prolyl isomerases|Tetratricopeptide repeat domain containing
Gene summary
The protein encoded by this gene is a member of the immunophilin protein family, which play a role in immunoregulation and basic cellular processes involving protein folding and trafficking. This encoded protein is a cis-trans prolyl isomerase that binds to the immunosuppressants FK506 and rapamycin. It has high structural and functional similarity to FK506-binding protein 1A (FKBP1A), but unlike FKBP1A, this protein does not have immunosuppressant activity when complexed with FK506. It interacts with interferon regulatory factor-4 and plays an important role in immunoregulatory gene expression in B and T lymphocytes. This encoded protein is known to associate with phytanoyl-CoA alpha-hydroxylase. It can also associate with two heat shock proteins (hsp90 and hsp70) and thus may play a role in the intracellular trafficking of hetero-oligomeric forms of the steroid hormone receptors. This protein correlates strongly with adeno-associated virus type 2 vectors (AAV) resulting in a significant increase in AAV-mediated transgene expression in human cell lines. Thus this encoded protein is thought to have important implications for the optimal use of AAV vectors in human gene therapy. The human genome contains several non-transcribed pseudogenes similar to this gene. [provided by RefSeq, Sep 2008]
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~10.5 kbGenCC Phenotypes & Disease Associations
Curated gene-disease validity assertions and inheritance patterns
Inheritance Pattern: AR
Disease ID:MONDO:0100038
Submitter: PanelApp Australia
ClinVar Associated Diseases & Phenotypes
Reported disease conditions connected to FKBP4 variants in ClinVar
ClinVar Variants & Pathogenicity by Type
Statistics based on transcript NM_002014.4. Only rare variants are included.
We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.
Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.
| Effect | PathogenicP | Likely pathogenicLP | VUS | Likely benignLB | BenignB | Sum |
|---|---|---|---|---|---|---|
| synonymous | 1 | 1 | ||||
| missense | 42 | 3 | 2 | 47 | ||
| nonsense | 0 | |||||
| start loss | 0 | |||||
| frameshift | 0 | |||||
| splice donor/acceptor (+/-2bp) | 8 | 8 | ||||
| Total | 0 | 0 | 50 | 3 | 3 | 56 |
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_002005.1 | 10 | MANE Select | |
| Ensembl | ENSP00000001008.4 | 10 | MANE Select | |
| Ensembl | ENSP00000446368.1 | 2 | Standard | |
| Ensembl | ENSP00000438491.1 | 2 | Standard |
Model Organisms & Knockout Phenotypes
Observed phenotypic effects in mouse and zebrafish models
| Gene / Model | Organism | Observed Phenotype |
|---|---|---|
| fkbp4 | Danio rerio | Structure: whole organism Quality: decreased length abnormal |
Gene Ontology (GO) Annotations & Pathways
Biological processes, molecular functions, cellular components and pathways
Pathways ConsensusPathDB
- Estrogen signaling pathway - Homo sapiens (human)
- Glucocorticoid Pathway (Peripheral Tissue), Pharmacodynamics
- Androgen receptor signaling pathway
- Cellular response to heat stress
- Signal Transduction
Biological Process
- protein peptidyl-prolyl isomerization
- protein folding
- steroid hormone receptor complex assembly
- copper ion transport
- embryo implantation
Molecular Function
- RNA binding
- peptidyl-prolyl cis-trans isomerase activity
- protein binding
- ATP binding
- GTP binding
Cellular Component
- nucleoplasm
- cytoplasm
- mitochondrion
- cytosol
- microtubule
gnomAD Constraint
Source:
- Gene type
- protein_coding
- Transcript type
- protein_coding
- Transcript
- ENST00000001008
- Coding exons
- 10
- Length
- 10458
- Individuals with no LoFs
- 125733
- Homozygous LoFs
- 0
- Heterozygous LoFs
- 15
- Defined
- 125748
- p
- 0.0000596
| Z-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | 1.21 | 197 | 251 | 0.785 | 0.0000140 | 3001 |
| Missense (PolyPhen) | 67 | 98.929 | 0.67725 | 1147 | ||
| Synonymous | -1.06 | 109 | 95.8 | 1.14 | 0.00000522 | 853 |
| Loss of Function | 3.34 | 6 | 23.5 | 0.256 | 0.00000124 | 280 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0.00012 | 0.00012 | rare |
| Latino/Admixed American | 0 | 0.0 | absent |
| Ashkenazi Jewish | 0 | 0.0 | absent |
| East Asian | 0.000054 | 0.000054 | rare |
| Finnish | 0 | 0.0 | absent |
| European (Non-Finnish) | 0.000088 | 0.000088 | rare |
| South Asian | 0.000065 | 0.000065 | rare |
| Other | 0 | 0.0 | absent |
dbNSFP Gene Annotations
Source:
- Function
- FUNCTION: Immunophilin protein with PPIase and co-chaperone activities. Component of steroid receptors heterocomplexes through interaction with heat-shock protein 90 (HSP90). May play a role in the intracellular trafficking of heterooligomeric forms of steroid hormone receptors between cytoplasm and nuclear compartments. The isomerase activity controls neuronal growth cones via regulation of TRPC1 channel opening. Acts also as a regulator of microtubule dynamics by inhibiting MAPT/TAU ability to promote microtubule assembly. May have a protective role against oxidative stress in mitochondria. {ECO:0000269|PubMed:1279700, ECO:0000269|PubMed:1376003, ECO:0000269|PubMed:19945390, ECO:0000269|PubMed:21730050, ECO:0000269|PubMed:2378870}.;
Recessive Scores
- pRec
- 0.187
Intolerance Scores
- LoFtool
- 0.191
- RVIS EVS
- 0.04
- RVIS percentile EVS
- 57.15
Essentials
- Essential (CRISPR)
- N
- Essential (CRISPR2)
- N
- Essential (gene trap)
- N
- Indispensability pred.
- E
- Indispensability score
- 0.858
Gene Damage Prediction
| All | Recessive | Dominant | |
|---|---|---|---|
| Mendelian | Medium | Medium | Medium |
| Primary Immunodeficiency | Medium | Medium | Medium |
| Cancer | Medium | Medium | Medium |