INPP5J
protein-codinginositol polyphosphate-5-phosphatase J, the group of Phosphoinositide phosphatases
Gene summary
Predicted to enable inositol trisphosphate phosphatase activity; phosphatidylinositol-3,4,5-trisphosphate 5-phosphatase activity; and phosphatidylinositol-4,5-bisphosphate 5-phosphatase activity. Predicted to be involved in negative regulation of microtubule polymerization. Predicted to act upstream of or within negative regulation of neuron projection development and negative regulation of peptidyl-serine phosphorylation. Located in cytoplasm and ruffle. [provided by Alliance of Genome Resources, Apr 2025]
- PIB5PA
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~12.0 kbGenCC Phenotypes & Disease Associations
Curated gene-disease validity assertions and inheritance patterns
No GenCC data available for this gene.
ClinVar Associated Diseases & Phenotypes
Reported disease conditions connected to INPP5J variants in ClinVar
ClinVar Variants & Pathogenicity by Type
Statistics based on transcript NM_001284285.2. 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 | 2 | 2 | ||||
| missense | 126 | 2 | 2 | 130 | ||
| nonsense | 1 | 1 | ||||
| start loss | 0 | |||||
| frameshift | 0 | |||||
| splice donor/acceptor (+/-2bp) | 2 | 2 | ||||
| Total | 0 | 0 | 129 | 4 | 2 | 135 |
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_001271214.1 | 13 | MANE Select | |
| Ensembl | ENSP00000333262.5 | 13 | MANE Select | |
| RefSeq | NP_001002837.1 | 13 | Standard | |
| RefSeq | NP_001271215.1 | 12 | Standard |
Gene Ontology (GO) Annotations & Pathways
Biological processes, molecular functions, cellular components and pathways
Pathways ConsensusPathDB
- Inositol phosphate metabolism - Homo sapiens (human)
- Phosphatidylinositol signaling system - Homo sapiens (human)
- Inositol Phosphate Metabolism
- Inositol Metabolism
- D-<i>myo</i>-inositol (1,3,4)-trisphosphate biosynthesis
Biological Process
- phosphatidylinositol biosynthetic process
- negative regulation of peptidyl-serine phosphorylation
- inositol phosphate metabolic process
- inositol phosphate dephosphorylation
- phosphatidylinositol dephosphorylation
Molecular Function
- phosphatidylinositol-4,5-bisphosphate 5-phosphatase activity
- protein binding
- SH3 domain binding
- phosphatidylinositol-3,4,5-trisphosphate 5-phosphatase activity
- inositol-1,4,5-trisphosphate 5-phosphatase activity
Cellular Component
- ruffle
- cytoplasm
- cytosol
- plasma membrane
gnomAD Constraint
Source:
- Gene type
- protein_coding
- Transcript type
- protein_coding
- Transcript
- ENST00000404390
- Coding exons
- 13
- Length
- 11966
- Individuals with no LoFs
- 124639
- Homozygous LoFs
- 1
- Heterozygous LoFs
- 78
- Defined
- 124718
- p
- 0.000317
| Z-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | 0.898 | 339 | 389 | 0.872 | 0.0000248 | 4108 |
| Missense (PolyPhen) | 139 | 170.29 | 0.81627 | 1746 | ||
| Synonymous | 1.79 | 125 | 153 | 0.816 | 0.00000993 | 1256 |
| Loss of Function | 0.773 | 27 | 31.7 | 0.852 | 0.00000183 | 312 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0.00028 | 0.00026 | rare |
| Latino/Admixed American | 0.00042 | 0.00038 | rare |
| Ashkenazi Jewish | 0 | 0.0 | absent |
| East Asian | 0.000065 | 0.000056 | rare |
| Finnish | 0.000095 | 0.000093 | rare |
| European (Non-Finnish) | 0.00018 | 0.00018 | rare |
| South Asian | 0.0013 | 0.0012 | notable |
| Other | 0.00036 | 0.00033 | rare |
dbNSFP Gene Annotations
Source:
- Function
- FUNCTION: Inositol 5-phosphatase, which converts inositol 1,4,5- trisphosphate to inositol 1,4-bisphosphate. Also converts phosphatidylinositol 4,5-bisphosphate to phosphatidylinositol 4- phosphate and inositol 1,3,4,5-tetrakisphosphate to inositol 1,3,4-trisphosphate in vitro. May be involved in modulation of the function of inositol and phosphatidylinositol polyphosphate- binding proteins that are present at membranes ruffles (By similarity). {ECO:0000250}.;
Recessive Scores
- pRec
- 0.141
Intolerance Scores
- LoFtool
- 0.363
- RVIS EVS
- -0.22
- RVIS percentile EVS
- 37.43
Essentials
- Essential (CRISPR)
- N
- Essential (CRISPR2)
- N
- Essential (gene trap)
- N
- Indispensability pred.
- E
- Indispensability score
- 0.678
Gene Damage Prediction
| All | Recessive | Dominant | |
|---|---|---|---|
| Mendelian | Medium | Medium | Medium |
| Primary Immunodeficiency | Medium | Medium | Medium |
| Cancer | Medium | Medium | Medium |