IPPK
protein-codinginositol-pentakisphosphate 2-kinase
Gene summary
The protein encoded by this gene is a kinase that phosphorylates position 2 of inositol-1,3,4,5,6-pentakisphosphate to form inositol-1,2,3,4,5,6-hexakisphosphate (InsP6). InsP6 has a variety of functions, including stimulation of DNA repair, endocytosis, and mRNA export. [provided by RefSeq, Nov 2010]
- C9orf12
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~56.9 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 IPPK variants in ClinVar
ClinVar Variants & Pathogenicity by Type
Statistics based on transcript NM_022755.6. 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 | 82 | 1 | 83 | |||
| nonsense | 0 | |||||
| start loss | 0 | |||||
| frameshift | 0 | |||||
| splice donor/acceptor (+/-2bp) | 3 | 3 | ||||
| Total | 0 | 0 | 86 | 1 | 0 | 87 |
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_073592.1 | 13 | MANE Select | |
| Ensembl | ENSP00000287996.3 | 13 | MANE Select | |
| Ensembl | ENSP00000364672.2 | 10 | Standard | |
| Ensembl | ENSP00000540880.1 | 13 | Standard |
Model Organisms & Knockout Phenotypes
Observed phenotypic effects in mouse and zebrafish models
| Gene / Model | Organism | Observed Phenotype |
|---|---|---|
| ippk | Danio rerio | Structure: central canal Quality: decreased functionality abnormal |
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
- 1D-<i>myo</i>-inositol hexakisphosphate biosynthesis II (mammalian)
Biological Process
- inositol phosphate biosynthetic process
- inositol phosphate metabolic process
- inositol phosphorylation
- positive regulation of transcription of nucleolar large rRNA by RNA polymerase I
Molecular Function
- protein binding
- ATP binding
- protein-containing complex scaffold activity
- inositol pentakisphosphate 2-kinase activity
Cellular Component
- nucleus
- nucleoplasm
- nucleolus
- cytosol
gnomAD Constraint
Source:
- Gene type
- protein_coding
- Transcript type
- protein_coding
- Transcript
- ENST00000287996
- Coding exons
- 13
- Length
- 57082
- Individuals with no LoFs
- 125737
- Homozygous LoFs
- 0
- Heterozygous LoFs
- 11
- Defined
- 125748
- p
- 0.0000437
| Z-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | 2.00 | 200 | 297 | 0.673 | 0.0000180 | 3206 |
| Missense (PolyPhen) | 49 | 103.81 | 0.472 | 1179 | ||
| Synonymous | 0.149 | 123 | 125 | 0.983 | 0.00000837 | 920 |
| Loss of Function | 4.11 | 5 | 28.8 | 0.174 | 0.00000145 | 324 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0.000076 | 0.000062 | rare |
| Latino/Admixed American | 0.000087 | 0.000087 | rare |
| Ashkenazi Jewish | 0.00010 | 0.000099 | rare |
| East Asian | 0.000054 | 0.000054 | rare |
| Finnish | 0 | 0.0 | absent |
| European (Non-Finnish) | 0.000035 | 0.000035 | rare |
| South Asian | 0.000033 | 0.000033 | rare |
| Other | 0 | 0.0 | absent |
dbNSFP Gene Annotations
Source:
- Function
- FUNCTION: Phosphorylates Ins(1,3,4,5,6)P5 at position 2 to form Ins(1,2,3,4,5,6)P6 (InsP6 or phytate). InsP6 is involved in many processes such as mRNA export, non-homologous end-joining, endocytosis, ion channel regulation. It also protects cells from TNF-alpha-induced apoptosis. {ECO:0000269|PubMed:12084730, ECO:0000269|PubMed:15967797}.;
Recessive Scores
- pRec
- 0.119
Intolerance Scores
- LoFtool
- 0.265
- RVIS EVS
- -0.02
- RVIS percentile EVS
- 52.09
Essentials
- Essential (CRISPR)
- E
- Essential (CRISPR2)
- S
- Essential (gene trap)
- E
- Indispensability pred.
- E
- Indispensability score
- 0.711
Gene Damage Prediction
| All | Recessive | Dominant | |
|---|---|---|---|
| Mendelian | Medium | Medium | Medium |
| Primary Immunodeficiency | Medium | Medium | Medium |
| Cancer | Medium | Medium | Medium |