PPIL1
gene geneOn this page
Also known as CYPL1
Summary
PPIL1 (peptidylprolyl isomerase like 1, HGNC:9260) is a protein-coding gene on chromosome 6p21.2, encoding Peptidyl-prolyl cis-trans isomerase-like 1 (Q9Y3C6). Involved in pre-mRNA splicing as component of the spliceosome. It is a selective cancer dependency (DepMap: 76.9% of cell lines).
This gene is a member of the cyclophilin family of peptidylprolyl isomerases (PPIases). The cyclophilins are a highly conserved, ubiquitous family, members of which play an important role in protein folding, immunosuppression by cyclosporin A, and infection of HIV-1 virions. Based on similarity to other PPIases, this protein could accelerate the folding of proteins and might catalyze the cis-trans isomerization of proline imidic peptide bonds in oligopeptides.
Source: NCBI Gene 51645 — RefSeq curated summary.
At a glance
- Gene–disease (curated): pontocerebellar hypoplasia, type 14 (Strong, GenCC)
- GWAS associations: 13
- Clinical variants (ClinVar): 36 total — 7 likely-pathogenic
- Phenotypes (HPO): 24
- Druggable target: yes
- Cancer dependency (DepMap): dependent in 76.9% of screened cell lines
- MANE Select transcript:
NM_016059
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:9260 |
| Approved symbol | PPIL1 |
| Name | peptidylprolyl isomerase like 1 |
| Location | 6p21.2 |
| Locus type | gene with protein product |
| Status | Approved |
| Aliases | CYPL1 |
| Ensembl gene | ENSG00000137168 |
| Ensembl biotype | protein_coding |
| OMIM | 601301 |
| Entrez | 51645 |
Gene structure
Transcript identifiers
Ensembl transcripts: 4 — 3 protein_coding, 1 protein_coding_CDS_not_defined
ENST00000373699, ENST00000483552, ENST00000921230, ENST00000946228
RefSeq mRNA: 1 — MANE Select: NM_016059
NM_016059
CCDS: CCDS4826
Canonical transcript exons
ENST00000373699 — 4 exons
| Exon | Start | End |
|---|---|---|
| ENSE00000929547 | 36871718 | 36871872 |
| ENSE00001461336 | 36874717 | 36874803 |
| ENSE00003619214 | 36856586 | 36856654 |
| ENSE00003632779 | 36854829 | 36856033 |
Expression profiles
Bgee: expression breadth ubiquitous, 251 present calls, max score 97.57.
FANTOM5 (CAGE): breadth ubiquitous, TPM avg 29.6120 / max 497.7461, expressed in 1804 samples.
FANTOM5 promoters (6 alternative TSS)
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 73395 | 20.6711 | 1774 |
| 73399 | 3.2804 | 1308 |
| 73400 | 2.8916 | 1352 |
| 73396 | 2.3986 | 1239 |
| 73398 | 0.2394 | 102 |
| 73397 | 0.1310 | 36 |
Top tissues by expression
256 total, by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| heart right ventricle | UBERON:0002080 | 97.57 | gold quality |
| left ventricle myocardium | UBERON:0006566 | 97.30 | gold quality |
| oocyte | CL:0000023 | 97.14 | gold quality |
| primordial germ cell in gonad | CL:0000670 ∩ UBERON:0000991 | 96.72 | gold quality |
| myocardium | UBERON:0002349 | 96.37 | gold quality |
| cardiac muscle of right atrium | UBERON:0003379 | 95.81 | gold quality |
| secondary oocyte | CL:0000655 | 95.41 | gold quality |
| cardiac atrium | UBERON:0002081 | 94.00 | gold quality |
| right atrium auricular region | UBERON:0006631 | 93.96 | gold quality |
| right adrenal gland cortex | UBERON:0035827 | 93.89 | gold quality |
| cardiac ventricle | UBERON:0002082 | 93.87 | gold quality |
| heart left ventricle | UBERON:0002084 | 93.87 | gold quality |
| left adrenal gland | UBERON:0001234 | 93.63 | gold quality |
| left adrenal gland cortex | UBERON:0035825 | 93.34 | gold quality |
| right adrenal gland | UBERON:0001233 | 93.26 | gold quality |
| adrenal cortex | UBERON:0001235 | 93.07 | gold quality |
| heart | UBERON:0000948 | 92.99 | gold quality |
| islet of Langerhans | UBERON:0000006 | 92.72 | gold quality |
| adrenal gland | UBERON:0002369 | 92.67 | gold quality |
| cortical plate | UBERON:0005343 | 91.93 | gold quality |
| ventricular zone | UBERON:0003053 | 91.82 | gold quality |
| ganglionic eminence | UBERON:0004023 | 91.23 | gold quality |
| prefrontal cortex | UBERON:0000451 | 90.83 | gold quality |
| sperm | CL:0000019 | 90.37 | gold quality |
| nucleus accumbens | UBERON:0001882 | 90.33 | gold quality |
| apex of heart | UBERON:0002098 | 90.18 | gold quality |
| metanephros | UBERON:0000081 | 89.87 | gold quality |
| hypothalamus | UBERON:0001898 | 89.78 | gold quality |
| Brodmann (1909) area 9 | UBERON:0013540 | 89.68 | gold quality |
| anterior cingulate cortex | UBERON:0009835 | 89.54 | gold quality |
Single-cell (SCXA)
Detected in 2 experiment(s), a significant marker in 1.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-ANND-3 | yes | 4.76 |
| E-GEOD-124858 | no | 149.13 |
Regulation
Is transcription factor: no
miRNA regulators (miRDB)
76 targeting PPIL1, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):
| miRNA | Max score | Avg score | miRNA target_count |
|---|---|---|---|
| HSA-MIR-4795-3P | 100.00 | 74.62 | 4024 |
| HSA-MIR-5011-5P | 100.00 | 83.46 | 5820 |
| HSA-MIR-6833-3P | 100.00 | 70.63 | 3197 |
| HSA-MIR-1277-5P | 100.00 | 73.95 | 5056 |
| HSA-MIR-4768-5P | 100.00 | 69.49 | 2861 |
| HSA-MIR-3924 | 100.00 | 72.09 | 2394 |
| HSA-MIR-432-3P | 100.00 | 67.86 | 705 |
| HSA-MIR-126-5P | 100.00 | 72.71 | 3180 |
| HSA-MIR-3163 | 100.00 | 77.23 | 8605 |
| HSA-MIR-548C-3P | 99.99 | 74.01 | 7587 |
| HSA-MIR-3148 | 99.97 | 75.06 | 6478 |
| HSA-MIR-96-5P | 99.95 | 72.80 | 2140 |
| HSA-MIR-335-3P | 99.93 | 73.36 | 4958 |
| HSA-MIR-12133 | 99.92 | 71.82 | 2006 |
| HSA-MIR-497-5P | 99.92 | 71.83 | 2674 |
| HSA-MIR-1271-5P | 99.91 | 71.99 | 1972 |
| HSA-MIR-6809-3P | 99.91 | 71.45 | 3814 |
| HSA-MIR-15A-5P | 99.90 | 72.80 | 2787 |
| HSA-MIR-15B-5P | 99.90 | 72.78 | 2798 |
| HSA-MIR-9902 | 99.89 | 69.15 | 2250 |
| HSA-MIR-182-5P | 99.87 | 74.03 | 2589 |
| HSA-MIR-579-3P | 99.86 | 71.66 | 3628 |
| HSA-MIR-664B-3P | 99.84 | 71.65 | 3590 |
| HSA-MIR-3133 | 99.81 | 70.92 | 3506 |
| HSA-MIR-4668-5P | 99.79 | 70.58 | 3782 |
| HSA-MIR-4470 | 99.66 | 69.35 | 1767 |
| HSA-MIR-6762-3P | 99.66 | 66.94 | 1188 |
| HSA-MIR-4499 | 99.62 | 67.29 | 1470 |
| HSA-MIR-4310 | 99.59 | 68.84 | 2527 |
| HSA-MIR-7159-3P | 99.51 | 70.17 | 1920 |
Functional genomics
DepMap (CRISPR cell-line fitness): dependent in 76.9% of screened cell lines.
Literature-anchored findings (GeneRIF, showing 4)
- NMR protein structure of PPIL1 (PMID:15772761)
- here the solution structure of PPIL1 determined by NMR spectroscopy (PMID:16595688)
- The large disordered region in SKIP provides an interaction platform. Its disorder-order transition, induced by PPIL1 binding, may adapt the requirement for a large structural rearrangement occurred in the activation of spliceosome (PMID:20007319)
- molecular model for the binding mode of SKIP to PPIL1 which emphasizes the versatility of cyclophilin-type PPIases to engage in additional interactions with other proteins apart from active site contacts despite their limited surface area. (PMID:20368803)
Cross-species orthologs
5 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| danio_rerio | ppil1 | ENSDARG00000015422 |
| mus_musculus | Ppil1 | ENSMUSG00000024007 |
| rattus_norvegicus | Ppil1 | ENSRNOG00000000523 |
| drosophila_melanogaster | Cypl | FBGN0035141 |
| caenorhabditis_elegans | WBGENE00000888 |
Paralogs (22): PPIE (ENSG00000084072), PPIL2 (ENSG00000100023), PPIF (ENSG00000108179), PPWD1 (ENSG00000113593), NKTR (ENSG00000114857), PPIL4 (ENSG00000131013), PPIG (ENSG00000138398), CWC27 (ENSG00000153015), PPIB (ENSG00000166794), PPIC (ENSG00000168938), PPID (ENSG00000171497), PPIH (ENSG00000171960), PPIL6 (ENSG00000185250), PPIA (ENSG00000196262), PPIAL4G (ENSG00000236334), PPIL3 (ENSG00000240344), PPIAL4A (ENSG00000263353), PPIAL4H (ENSG00000270339), PPIAL4E (ENSG00000271567), PPIAL4F (ENSG00000279782), PPIAL4C (ENSG00000288867), PPIAL4D (ENSG00000289549)
Protein
Protein identifiers
Peptidyl-prolyl cis-trans isomerase-like 1 — Q9Y3C6 (reviewed: Q9Y3C6)
Alternative names: Rotamase PPIL1
All UniProt accessions (1): Q9Y3C6
UniProt curated annotations — full annotation on UniProt →
Function. Involved in pre-mRNA splicing as component of the spliceosome. PPIases accelerate the folding of proteins. Catalyzes the cis-trans isomerization of proline imidic peptide bonds in oligopeptides. Catalyzes prolyl peptide bond isomerization in CDC40/PRP17. Plays an important role in embryonic brain development; this function is independent of its isomerase activity.
Subunit / interactions. Identified in the spliceosome C complex. Interacts with SNW1/SKIP. Interacts with CDC40/PRP17; this interaction leads to CDC40 isomerization. Interacts with RBM22.
Subcellular location. Nucleus.
Tissue specificity. Ubiquitous, with the most abundant expression in heart and skeletal muscle.
Disease relevance. Pontocerebellar hypoplasia 14 (PCH14) [MIM:619301] A form of pontocerebellar hypoplasia, a disorder characterized by structural defects of the pons and cerebellum, evident upon brain imaging. PCH14 is a severe autosomal recessive form characterized by progressive microcephaly, and poor or absent psychomotor development with severely impaired intellectual development apparent from birth. Other features may include hypotonia, spastic quadriplegia, and early-onset seizures. Early death may occur in some patients. The disease is caused by variants affecting the gene represented in this entry.
Activity regulation. Inhibited by Cyclosporin A.
Similarity. Belongs to the cyclophilin-type PPIase family. PPIL1 subfamily.
RefSeq proteins (1): NP_057143* (*=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR002130 | Cyclophilin-type_PPIase_dom | Domain |
| IPR020892 | Cyclophilin-type_PPIase_CS | Conserved_site |
| IPR024936 | Cyclophilin-type_PPIase | Family |
| IPR029000 | Cyclophilin-like_dom_sf | Homologous_superfamily |
| IPR044666 | Cyclophilin_A-like | Family |
Pfam: PF00160
Enzyme classification (BRENDA):
- EC 5.2.1.8 — peptidylprolyl isomerase (BRENDA: 69 organisms, 374 substrates, 222 inhibitors, 24 Km, 30 kcat entries)
Substrate kinetics (BRENDA)
11 substrates with measured Km, best-characterized 11. Km ranges are aggregated across organisms/conditions.
| Substrate | Km (mM) | Measurements |
|---|---|---|
| N-SUCCINYL-ALA-GLU-(TRANS)-PRO-PHE-4-NITROANILID | 0.17–0.7 | 5 |
| N-SUCCINYL-ALA-ALA-(CIS)-PRO-PHE-4-NITROANILIDE | 0.104–0.814 | 2 |
| RNASE T1 | 0.0004–0.0006 | 2 |
| SUCCINYL-ALA-ALA-PRO-PHE 4-NITROANILIDE | 0.451–1.247 | 2 |
| SUCCINYL-ALA-LYS-PRO-PHE-4-NITROANILIDE | 0.585–0.788 | 2 |
| ALA-GLY-PSI[CS-N]-PRO-PHE-4-NITROANILIDE | 0.53 | 1 |
| N-SUCCINYL-ALA-LEU-(CIS)-PRO-PHE-4-NITROANILIDE | 0.059 | 1 |
| SUCCINYL-ALA-GLU-PRO-PHE-7-AMIDO-4-METHYLCOUMARI | 0.12 | 1 |
| TRYWNAKMK-(CIS)-PFIFGA | 2 | 1 |
| SUCCINYL-ALA-ALA-(CIS)-PRO-LYS-4-METHYLCOUMARIN- | — | 0 |
| SUCCINYL-ALA-ALA-(CIS)-PRO-PHE 4-METHYLCOUMARIN | — | 0 |
Catalyzed reactions (Rhea), 1 shown:
- [protein]-peptidylproline (omega=180) = [protein]-peptidylproline (omega=0) (RHEA:16237)
UniProt features (41 total): strand 14, sequence variant 10, binding site 6, turn 4, helix 3, chain 1, domain 1, mutagenesis site 1, modified residue 1
Structure
Experimental structures (PDB)
28 structures.
| PDB | Method | Resolution (Å) |
|---|---|---|
| 2X7K | X-RAY DIFFRACTION | 1.15 |
| 8C6J | ELECTRON MICROSCOPY | 2.8 |
| 6ID1 | ELECTRON MICROSCOPY | 2.86 |
| 6ID0 | ELECTRON MICROSCOPY | 2.9 |
| 6ICZ | ELECTRON MICROSCOPY | 3 |
| 8I0T | ELECTRON MICROSCOPY | 3 |
| 8I0V | ELECTRON MICROSCOPY | 3 |
| 7QTT | ELECTRON MICROSCOPY | 3.1 |
| 6QDV | ELECTRON MICROSCOPY | 3.3 |
| 8I0U | ELECTRON MICROSCOPY | 3.3 |
| 9FMD | ELECTRON MICROSCOPY | 3.3 |
| 6FF4 | ELECTRON MICROSCOPY | 3.4 |
| 6ZYM | ELECTRON MICROSCOPY | 3.4 |
| 8I0W | ELECTRON MICROSCOPY | 3.4 |
| 8RO2 | ELECTRON MICROSCOPY | 3.5 |
| 5XJC | ELECTRON MICROSCOPY | 3.6 |
| 7W59 | ELECTRON MICROSCOPY | 3.6 |
| 7W5A | ELECTRON MICROSCOPY | 3.6 |
| 5YZG | ELECTRON MICROSCOPY | 4.1 |
| 8I0S | ELECTRON MICROSCOPY | 4.2 |
| 7W5B | ELECTRON MICROSCOPY | 4.3 |
| 6FF7 | ELECTRON MICROSCOPY | 4.5 |
| 5Z56 | ELECTRON MICROSCOPY | 5.1 |
| 5MQF | ELECTRON MICROSCOPY | 5.9 |
| 8CH6 | ELECTRON MICROSCOPY | 5.9 |
| 5Z57 | ELECTRON MICROSCOPY | 6.5 |
| 1XWN | SOLUTION NMR | |
| 2K7N | SOLUTION NMR |
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-Q9Y3C6-F1 | 95.06 | 0.94 |
Functional residue map
Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.
Ligand- & substrate-binding residues (6): 54–65; 70–71; 99–104; 109–113; 119; 125
Post-translational modifications (1): 149
Mutagenesis-validated functional residues (1):
| Position | Phenotype |
|---|---|
| 55 | loss of isomerase activity. can rescue splicing defects when transfected in knockout cells. |
Function
Pathways and Gene Ontology
Reactome pathways
2 pathways
| ID | Pathway |
|---|---|
| R-HSA-72163 | mRNA Splicing - Major Pathway |
| R-HSA-9918481 | Dengue Virus-Host Interactions |
MSigDB gene sets: 186 (showing top):
CHIANG_LIVER_CANCER_SUBCLASS_UNANNOTATED_DN, IVANOVA_HEMATOPOIESIS_LATE_PROGENITOR, GOBP_PROTEIN_MATURATION, REACTOME_PROCESSING_OF_CAPPED_INTRON_CONTAINING_PRE_MRNA, SCHAEFFER_PROSTATE_DEVELOPMENT_6HR_DN, GOBP_RNA_SPLICING, GARCIA_TARGETS_OF_FLI1_AND_DAX1_DN, GOBP_PROTEIN_FOLDING, GARY_CD5_TARGETS_DN, REACTOME_MRNA_SPLICING, GOBP_PEPTIDYL_PROLINE_MODIFICATION, GOBP_EMBRYO_DEVELOPMENT, GOBP_EMBRYONIC_ORGAN_DEVELOPMENT, CETS1P54_01, REACTOME_METABOLISM_OF_RNA
GO Biological Process (6): mRNA splicing, via spliceosome (GO:0000398), protein peptidyl-prolyl isomerization (GO:0000413), protein folding (GO:0006457), embryonic brain development (GO:1990403), mRNA processing (GO:0006397), RNA splicing (GO:0008380)
GO Molecular Function (4): peptidyl-prolyl cis-trans isomerase activity (GO:0003755), disordered domain specific binding (GO:0097718), protein binding (GO:0005515), isomerase activity (GO:0016853)
GO Cellular Component (5): nucleus (GO:0005634), nucleoplasm (GO:0005654), U2-type catalytic step 2 spliceosome (GO:0071007), catalytic step 2 spliceosome (GO:0071013), spliceosomal complex (GO:0005681)
Reactome top-level categories
Rollup of top-2 pathways:
| Category | Pathways |
|---|---|
| mRNA Splicing | 1 |
| Dengue Virus Infection | 1 |
GO top-level categories
Rollup of top GO terms by namespace:
| Category | Terms |
|---|---|
| RNA processing | 2 |
| RNA splicing, via transesterification reactions with bulged adenosine as nucleophile | 1 |
| mRNA processing | 1 |
| peptidyl-proline modification | 1 |
| cellular process | 1 |
| protein maturation | 1 |
| embryonic organ development | 1 |
| mRNA metabolic process | 1 |
| cis-trans isomerase activity | 1 |
| catalytic activity, acting on a protein | 1 |
| protein domain specific binding | 1 |
| binding | 1 |
| catalytic activity | 1 |
| intracellular membrane-bounded organelle | 1 |
| nuclear lumen | 1 |
| cellular anatomical structure | 1 |
| U2-type spliceosomal complex | 1 |
| U2 snRNP | 1 |
| U6 snRNP | 1 |
| catalytic step 2 spliceosome | 1 |
| Prp19 complex | 1 |
| spliceosomal complex | 1 |
| U5 snRNP | 1 |
| catalytic complex | 1 |
| nuclear protein-containing complex | 1 |
| ribonucleoprotein complex | 1 |
Protein interactions and networks
STRING
2915 interactions, top by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| PPIL1 | SNW1 | Q13573 | 936 |
| PPIL1 | SYF2 | O95926 | 729 |
| PPIL1 | CDC40 | O60508 | 643 |
| PPIL1 | CDC5L | Q99459 | 578 |
| PPIL1 | GLO1 | P78375 | 512 |
| PPIL1 | SF3A1 | Q15459 | 501 |
| PPIL1 | PRPF19 | Q9UMS4 | 494 |
| PPIL1 | BCAS2 | O75934 | 475 |
| PPIL1 | LSM2 | Q9Y333 | 469 |
| PPIL1 | VPS52 | Q8N1B4 | 461 |
| PPIL1 | SF3A3 | Q12874 | 439 |
| PPIL1 | NCKAP1L | P55160 | 431 |
| PPIL1 | GFER | P55789 | 424 |
| PPIL1 | DHX16 | O60231 | 417 |
| PPIL1 | HSD17B8 | Q92506 | 417 |
| PPIL1 | KLHL42 | Q9P2K6 | 417 |
IntAct
135 interactions, top by confidence:
| A | B | Type | Score |
|---|---|---|---|
| PPIL1 | SNW1 | psi-mi:“MI:0915”(physical association) | 0.930 |
| SNW1 | PPIL1 | psi-mi:“MI:0915”(physical association) | 0.930 |
| PPIL1 | SNW1 | psi-mi:“MI:0914”(association) | 0.930 |
| SNW1 | PPIL1 | psi-mi:“MI:0407”(direct interaction) | 0.930 |
| PPIL1 | SNW1 | psi-mi:“MI:0407”(direct interaction) | 0.930 |
| PPIL1 | CPSF6 | psi-mi:“MI:0915”(physical association) | 0.670 |
| CPSF6 | PPIL1 | psi-mi:“MI:0915”(physical association) | 0.670 |
| SNW1 | AQR | psi-mi:“MI:0914”(association) | 0.650 |
| SF3B1 | SAP18 | psi-mi:“MI:0914”(association) | 0.640 |
| PPIL1 | WDR83 | psi-mi:“MI:0915”(physical association) | 0.630 |
| TCF4 | PPIL1 | psi-mi:“MI:0915”(physical association) | 0.560 |
| PPIL1 | psi-mi:“MI:0915”(physical association) | 0.560 | |
| RIMBP3 | PPIL1 | psi-mi:“MI:0915”(physical association) | 0.560 |
| PPIL1 | RIMBP3 | psi-mi:“MI:0915”(physical association) | 0.560 |
| PPIL1 | psi-mi:“MI:0915”(physical association) | 0.560 | |
| LHX2 | PPIL1 | psi-mi:“MI:0915”(physical association) | 0.560 |
BioGRID (169): PPIL1 (Two-hybrid), PPIL1 (Two-hybrid), PPIL1 (Two-hybrid), RIMBP3 (Two-hybrid), PRR22 (Two-hybrid), PPIL1 (Affinity Capture-MS), SNW1 (Co-fractionation), PPIL1 (Affinity Capture-MS), PPIL1 (Affinity Capture-MS), PPIL1 (Affinity Capture-MS), GPALPP1 (Affinity Capture-MS), SNW1 (Affinity Capture-MS), DERA (Affinity Capture-MS), PPIL1 (Affinity Capture-MS), PPIL1 (Affinity Capture-MS)
ESM2 similar proteins: O25982, P0C1I4, P0C1I5, P0CP84, P0CP85, P0CP86, P0CP87, P23285, P29820, P35137, P35176, P52017, P65763, P77949, P84343, P87051, P9WHW2, P9WHW3, Q2FIC1, Q2FZU9, Q2YWT2, Q49W93, Q4L4W9, Q4PCH8, Q4WCR3, Q54E95, Q5ASQ0, Q5E992, Q5HHD1, Q5ZLV2, Q6GAX2, Q6GID4, Q6MWS8, Q7A1C0, Q7A6I1, Q812D3, Q8G0J9, Q8SRE1, Q8X191, Q8YHB5
Diamond homologs: D4AY02, G5EEW6, O42941, O74942, O93826, P0C196, P0C1I4, P0C1I5, P0C1I6, P0C1J0, P0C1J1, P0C1J2, P0CP84, P0CP85, P0CP86, P0CP87, P0CP88, P0CP89, P0CP90, P0CP91, P0CP92, P0CP93, P23284, P23285, P24367, P24369, P34790, P52012, P52013, P52014, P52017, P73789, P80311, P87051, Q08E11, Q09637, Q09928, Q13356, Q17QX9, Q27774
SIGNOR signaling
0 interactions.
Enriched among interaction partners
Reactome pathways and GO biological processes over-represented among this gene’s 98 IntAct physical interaction partners (hypergeometric vs the genome-wide background, BH-FDR, gene-set size 15–500, ranked by fold). A functional readout of the neighbourhood — distinct from this gene’s own memberships above, and biased toward well-studied / hub proteins, so read it as themes rather than proof.
Reactome pathways:
| Pathway | Partners | Fold | FDR |
|---|---|---|---|
| mRNA Splicing | 14 | 20.5× | 5e-13 |
| mRNA Polyadenylation | 17 | 19.9× | 1e-15 |
| Processing of Capped Intron-Containing Pre-mRNA | 17 | 18.6× | 3e-15 |
| mRNA 3’-end processing | 7 | 18.4× | 5e-06 |
| mRNA Splicing - Major Pathway | 25 | 18.2× | 9e-23 |
| RNA Polymerase II Transcription Termination | 6 | 17.6× | 5e-05 |
| mRNA Splicing - Minor Pathway | 5 | 14.9× | 8e-04 |
| CHD1 and CHD2 subfamily | 9 | 13.1× | 2e-06 |
GO biological processes:
| GO term | Partners | Fold | FDR |
|---|---|---|---|
| negative regulation of mRNA splicing, via spliceosome | 5 | 42.1× | 2e-05 |
| U2-type prespliceosome assembly | 5 | 34.3× | 4e-05 |
| spliceosomal complex assembly | 5 | 33.1× | 4e-05 |
| mRNA splicing, via spliceosome | 22 | 22.1× | 5e-21 |
| RNA splicing | 17 | 16.5× | 8e-14 |
| mRNA processing | 12 | 10.4× | 4e-07 |
Disease & clinical
Clinical variants and AI predictions
ClinVar
36 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 0 |
| Likely pathogenic | 7 |
| Uncertain significance | 22 |
| Likely benign | 2 |
| Benign | 1 |
Top pathogenic / likely-pathogenic (7)
| Variant ID | HGVS | Classification |
|---|---|---|
| 1065403 | NM_016059.5(PPIL1):c.280+1G>A | Likely pathogenic |
| 1344820 | NM_016059.5(PPIL1):c.233A>G (p.Tyr78Cys) | Likely pathogenic |
| 1344821 | NM_016059.5(PPIL1):c.392G>A (p.Arg131Gln) | Likely pathogenic |
| 1344822 | NM_016059.5(PPIL1):c.301_318dup (p.Ala101_Asp106dup) | Likely pathogenic |
| 1344823 | NM_016059.5(PPIL1):c.325G>T (p.Gly109Cys) | Likely pathogenic |
| 1344824 | NM_016059.5(PPIL1):c.245T>C (p.Phe82Ser) | Likely pathogenic |
| 929944 | NM_016059.5(PPIL1):c.133C>T (p.Arg45Ter) | Likely pathogenic |
SpliceAI
698 predictions. Top by Δscore:
| Variant | Effect | Δscore |
|---|---|---|
| 6:36856581:CTTA:C | donor_loss | 1.0000 |
| 6:36856582:TTACC:T | donor_loss | 1.0000 |
| 6:36856583:TACCC:T | donor_loss | 1.0000 |
| 6:36856584:A:AC | donor_gain | 1.0000 |
| 6:36856584:AC:A | donor_gain | 1.0000 |
| 6:36856584:ACC:A | donor_gain | 1.0000 |
| 6:36856585:C:CC | donor_gain | 1.0000 |
| 6:36856585:CC:C | donor_gain | 1.0000 |
| 6:36856585:CCC:C | donor_gain | 1.0000 |
| 6:36856659:CCGAT:C | acceptor_gain | 1.0000 |
| 6:36856661:G:T | acceptor_gain | 1.0000 |
| 6:36856663:T:TC | acceptor_gain | 1.0000 |
| 6:36871711:A:C | donor_gain | 1.0000 |
| 6:36871715:TA:T | donor_loss | 1.0000 |
| 6:36871717:C:CG | donor_loss | 1.0000 |
| 6:36871737:T:TA | donor_gain | 1.0000 |
| 6:36871868:CCATG:C | acceptor_gain | 1.0000 |
| 6:36871869:CATG:C | acceptor_gain | 1.0000 |
| 6:36871869:CATGC:C | acceptor_gain | 1.0000 |
| 6:36871870:ATG:A | acceptor_gain | 1.0000 |
| 6:36871871:TG:T | acceptor_gain | 1.0000 |
| 6:36871873:C:CC | acceptor_gain | 1.0000 |
| 6:36874711:CCTCA:C | donor_loss | 1.0000 |
| 6:36874712:CTCAC:C | donor_loss | 1.0000 |
| 6:36874713:TCA:T | donor_loss | 1.0000 |
| 6:36874714:CA:C | donor_loss | 1.0000 |
| 6:36874715:ACC:A | donor_loss | 1.0000 |
| 6:36874716:C:CT | donor_loss | 1.0000 |
| 6:36874814:T:TA | donor_gain | 1.0000 |
| 6:36856030:GCCC:G | acceptor_gain | 0.9900 |
AlphaMissense
1094 scored. Top likely-pathogenic:
| Variant | Protein change | am_pathogenicity |
|---|---|---|
| 6:36855925:C:T | G130D | 0.999 |
| 6:36856027:C:T | G96E | 0.999 |
| 6:36856590:G:C | F92L | 0.999 |
| 6:36856590:G:T | F92L | 0.999 |
| 6:36856592:A:G | F92L | 0.999 |
| 6:36871749:G:C | F60L | 0.999 |
| 6:36871749:G:T | F60L | 0.999 |
| 6:36871751:A:G | F60L | 0.999 |
| 6:36871764:T:A | R55S | 0.999 |
| 6:36871764:T:G | R55S | 0.999 |
| 6:36871765:C:G | R55T | 0.999 |
| 6:36871769:G:C | H54D | 0.999 |
| 6:36871821:A:C | C36W | 0.999 |
| 6:36871822:C:T | C36Y | 0.999 |
| 6:36855925:C:A | G130V | 0.998 |
| 6:36855926:C:G | G130R | 0.998 |
| 6:36855949:A:G | L122P | 0.998 |
| 6:36855949:A:T | L122H | 0.998 |
| 6:36855975:A:C | F113L | 0.998 |
| 6:36855975:A:T | F113L | 0.998 |
| 6:36855977:A:G | F113L | 0.998 |
| 6:36855978:G:C | F112L | 0.998 |
| 6:36855978:G:T | F112L | 0.998 |
| 6:36855979:A:G | F112S | 0.998 |
| 6:36855980:A:G | F112L | 0.998 |
| 6:36855981:C:A | Q111H | 0.998 |
| 6:36855981:C:G | Q111H | 0.998 |
| 6:36855984:G:C | S110R | 0.998 |
| 6:36855984:G:T | S110R | 0.998 |
| 6:36855986:T:G | S110R | 0.998 |
dbSNP variants (sampled 300 via entrez): RS1000115008 (6:36860852 G>A,C), RS1000152373 (6:36862870 G>T), RS1000161101 (6:36866663 A>C), RS1000300670 (6:36854558 T>C), RS1000719316 (6:36866969 C>T), RS1000760226 (6:36871785 G>A,T), RS1000899979 (6:36865220 C>T), RS1000951496 (6:36872179 T>C), RS1001053334 (6:36858131 G>A,C), RS1001486577 (6:36866574 A>C), RS1001580894 (6:36860294 G>A,C), RS1001675034 (6:36870343 A>C), RS1001690636 (6:36870033 G>T), RS1001997113 (6:36859209 G>T), RS1001997341 (6:36871365 T>C)
Disease associations
OMIM: gene MIM:601301 | disease phenotypes: MIM:619301
GenCC curated gene-disease
| Disease | Classification | Inheritance |
|---|---|---|
| pontocerebellar hypoplasia, type 14 | Strong | Autosomal recessive |
Mondo (2): pontocerebellar hypoplasia, type 14 (MONDO:0030258), neurodevelopmental disorder (MONDO:0700092)
Orphanet (1): Pontocerebellar hypoplasia type 14 (Orphanet:613274)
HPO phenotypes
24 total (24 of 24 shown, HPO-id order):
| HPO | Term |
|---|---|
| HP:0000007 | Autosomal recessive inheritance |
| HP:0000238 | Hydrocephalus |
| HP:0001252 | Hypotonia |
| HP:0001270 | Motor delay |
| HP:0001274 | Agenesis of corpus callosum |
| HP:0001276 | Hypertonia |
| HP:0001321 | Cerebellar hypoplasia |
| HP:0001332 | Dystonia |
| HP:0001344 | Absent speech |
| HP:0001348 | Brisk reflexes |
| HP:0001522 | Death in infancy |
| HP:0001873 | Thrombocytopenia |
| HP:0002069 | Bilateral tonic-clonic seizure |
| HP:0002188 | Delayed CNS myelination |
| HP:0002365 | Hypoplasia of the brainstem |
| HP:0002510 | Spastic tetraplegia |
| HP:0007359 | Focal-onset seizure |
| HP:0009879 | Simplified gyral pattern |
| HP:0010864 | Severe intellectual disability |
| HP:0012110 | Hypoplasia of the pons |
| HP:0012434 | Delayed early-childhood social milestone development |
| HP:0012469 | Infantile spasms |
| HP:0032794 | Myoclonic seizure |
| HP:0410252 | Persistently decreased total neutrophil count |
GWAS associations
13 associations (top):
| Study | Trait | p-value |
|---|---|---|
| GCST002481_11 | Acne (severe) | 2.000000e-06 |
| GCST003818_45 | Resting heart rate | 1.000000e-15 |
| GCST004715_1 | Heart rate | 9.000000e-07 |
| GCST004732_8 | Heart rate variability traits (pvRSA/HF) | 5.000000e-15 |
| GCST004732_9 | Heart rate variability traits (pvRSA/HF) | 3.000000e-15 |
| GCST004733_5 | Heart rate variability traits (RMSSD) | 9.000000e-17 |
| GCST004733_6 | Heart rate variability traits (RMSSD) | 6.000000e-20 |
| GCST004734_14 | Heart rate variability traits (SDNN) | 2.000000e-28 |
| GCST004734_6 | Heart rate variability traits (SDNN) | 4.000000e-25 |
| GCST005787_8 | Heart rate response to exercise | 6.000000e-10 |
| GCST005788_6 | Heart rate response to recovery post exercise | 5.000000e-06 |
| GCST006585_592 | Blood protein levels | 1.000000e-21 |
| GCST008152_167 | Weight | 7.000000e-06 |
EFO canonical traits (4, from GWAS)
| EFO ID | Trait name |
|---|---|
| EFO:0008003 | heart rate variability measurement |
| EFO:0009184 | heart rate response to exercise |
| EFO:0009185 | heart rate response to recovery post exercise |
| EFO:0004338 | body weight |
MeSH disease descriptors (1)
| Descriptor | Name | Tree numbers |
|---|---|---|
| D065886 | Neurodevelopmental Disorders | F03.625 |
Drugs & pharmacology
Drug and pharmacology data
Is drug target: yes
ChEMBL targets (1): CHEMBL5291529 (SINGLE PROTEIN)
PharmGKB: 1 entry (VIP=true, CPIC=false)
CTD chemical–gene interactions
48 total (human), top 30 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| GSK-J4 | decreases expression | 1 |
| bisphenol F | increases expression | 1 |
| alpha-pinene | affects cotreatment, increases oxidation, increases abundance | 1 |
| bisphenol A | decreases expression | 1 |
| lead acetate | affects cotreatment, decreases expression | 1 |
| trichostatin A | affects expression | 1 |
| zinc protoporphyrin | affects cotreatment, decreases expression | 1 |
| sodium arsenite | decreases expression | 1 |
| cobaltous chloride | decreases expression | 1 |
| HC toxin | decreases expression | 1 |
| methacrylaldehyde | affects cotreatment, increases oxidation, increases abundance | 1 |
| di-n-butylphosphoric acid | affects expression | 1 |
| yessotoxin | decreases expression | 1 |
| 4-phenylbutyric acid | decreases expression | 1 |
| azoxystrobin | decreases expression | 1 |
| CGP 52608 | affects binding, increases reaction | 1 |
| apicidin | decreases expression | 1 |
| deguelin | decreases expression | 1 |
| K 7174 | decreases expression | 1 |
| 4-(5-benzo(1,3)dioxol-5-yl-4-pyridin-2-yl-1H-imidazol-2-yl)benzamide | affects cotreatment, increases expression | 1 |
| nutlin 3 | affects cotreatment, increases secretion | 1 |
| pyrachlostrobin | decreases expression | 1 |
| bisphenol S | increases expression | 1 |
| LDN 193189 | affects cotreatment, increases expression | 1 |
| picoxystrobin | decreases expression | 1 |
| (+)-JQ1 compound | decreases expression | 1 |
| Temozolomide | increases expression | 1 |
| Sunitinib | decreases expression | 1 |
| Fulvestrant | increases methylation | 1 |
| Acetaminophen | decreases expression | 1 |
ChEMBL screening assays
2 unique, capped per target: 2 binding
Representative assays (with source publication via chembl_document):
| Assay ID | Type | Description | Source paper |
|---|---|---|---|
| CHEMBL5253377 | Binding | Inhibition of PPIL1 (unknown origin) | Peptidyl-Proline Isomerases (PPIases): Targets for Natural Products and Natural Product-Inspired Compounds. — J Med Chem |
Cellosaurus cell lines
2 cell lines: 2 cancer cell line
First 10 cell lines (id-ordered, not curated):
| Cellosaurus | Name | Category | Sex |
|---|---|---|---|
| CVCL_TF32 | HAP1 PPIL1 (-) 1 | Cancer cell line | Male |
| CVCL_XR79 | HAP1 PPIL1 (-) 2 | Cancer cell line | Male |
Clinical trials (associated diseases)
202 trials via MONDO — disease-level, not drug-specific.
| Trial | Phase | Status | Title |
|---|---|---|---|
| NCT04586348 | PHASE4 | UNKNOWN | Prenatal Iodine Supplementation and Early Childhood Neurodevelopment |
| NCT04873115 | PHASE4 | UNKNOWN | Double-blind, Placebo-controlled, Randomized Clinical Trial Comparing the Efficacy and Safety of Sialanar Plus orAl rehabiLitation Against Placebo Plus Oral Rehabilitation for chIldren and Adolescents With seVere Sialorrhoea and Neurodisabilties, |
| NCT02559102 | PHASE3 | COMPLETED | Dexmedetomidine Sedation Versus General Anaesthesia for Inguinal Hernia Surgery in Infants |
| NCT02757079 | PHASE3 | COMPLETED | Study of the Efficacy and Safety of NPC-15 for Sleep Disorders of Children With Neurodevelopmental Disorders |
| NCT06915480 | PHASE3 | RECRUITING | Reducing Missed Appointments |
| NCT07377032 | PHASE3 | RECRUITING | TAP-GRIN: Interventional Study on Patients With GRIN-related Neurodevelopmental Disorders |
| NCT02909959 | PHASE2 | COMPLETED | Sulforaphane for the Treatment of Young Men With Autism Spectrum Disorder |
| NCT06081348 | PHASE2 | RECRUITING | Sertraline vs. Placebo in the Treatment of Anxiety in Children and AdoLescents With NeurodevelopMental Disorders |
| NCT06352372 | PHASE2 | COMPLETED | Safety and Efficacy of tPBM for Epileptiform Activity in Autism |
| NCT00503191 | PHASE1 | COMPLETED | NeuroModulation Technique Treatment of Autism |
| NCT04475848 | PHASE1 | COMPLETED | A Study to Investigate the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics and Food Effect of RO6953958 in Healthy Participants |
| NCT06300398 | PHASE1 | COMPLETED | IAMA-6 Oral Dose Study in Healthy Adults |
| NCT01783041 | PHASE2/PHASE3 | COMPLETED | Effect of Early L-Carnitine Supplementation on Neurodevelopmental Outcomes in Very Preterm Infants |
| NCT05767385 | PHASE2/PHASE3 | RECRUITING | Fetal Cerebrovascular Autoregulation in Congenital Heart Disease and Association With Neonatal Neurobehavior |
| NCT05675098 | EARLY_PHASE1 | NOT_YET_RECRUITING | Central Nervous System Stimulants and Physical Function in Children With Cerebral Palsy |
| NCT00783783 | Not specified | COMPLETED | CYP2D6 Pharmacogenetics in Risperidone-Treated Children |
| NCT01778504 | Not specified | RECRUITING | Studying Childhood-onset Behavioral, Psychiatric, and Developmental Disorders |
| NCT01850784 | Not specified | UNKNOWN | High Energy Formula Feeding in Infants With Congenital Heart Disease |
| NCT01922791 | Not specified | COMPLETED | Nutrition and Pregnancy Intervention Study |
| NCT01942525 | Not specified | UNKNOWN | Influence of Intrauterine Growth Restriction on Amplitude-integrated EEG in Preterm Infants |
| NCT02003170 | Not specified | COMPLETED | Etiology and Early Diagnosis of Neurodevelopmental Disorders |
| NCT02118649 | Not specified | ACTIVE_NOT_RECRUITING | Enhancing Behavior and Brain Response to Visual Targets Using a Computer Game |
| NCT02557191 | Not specified | TERMINATED | Biomarkers, Neurodevelopment and Preterm Infants |
| NCT02690675 | Not specified | COMPLETED | Iron Supplement Effect on Child Development |
| NCT02694003 | Not specified | COMPLETED | Better Nights, Better Days for Children With Neurodevelopment Disorders |
| NCT02792894 | Not specified | COMPLETED | Family Networks (FaNs) for Children With Developmental Disorders and Delays |
| NCT02871674 | Not specified | UNKNOWN | Good Night Project: Behavioural Sleep Interventions for Children With ADHD: A Randomised Controlled Trial |
| NCT02887157 | Not specified | COMPLETED | Analyzing Retinal Microanatomy in ROP |
| NCT02898298 | Not specified | COMPLETED | Positive Emotion Regulation Training in Children, Adolescents and Young Adults With and Without Developmental Disorder |
| NCT02912780 | Not specified | UNKNOWN | Introduction of Microsystems in a Level 3 Neonatal Intensive Care Unit |
| NCT03023293 | Not specified | COMPLETED | n-3 PUFAs, Irisin and Maternal Glucose Metabolism From Pregnancy to Postpartum |
| NCT03023644 | Not specified | COMPLETED | Improving Neurodevelopmental Outcomes in Children With Congenital Heart Disease: An Intervention Study |
| NCT03032991 | Not specified | UNKNOWN | Early Biomarkers of Neurodevelopment in Offspring of Diabetic Mothers |
| NCT03088189 | Not specified | TERMINATED | Effect of Parental Peri-conceptional Vitamin B12 Supplementation on Infant Neurocognitive Development in Offspring |
| NCT03096028 | Not specified | COMPLETED | Developmental Origins of Mental Health Disorders |
| NCT03148782 | Not specified | COMPLETED | Brain Plasticity Underlying Acquisition of New Organizational Skills in Children-R61 Phase |
| NCT03172104 | Not specified | COMPLETED | Neurobehavioural Development of Infants Born <30 Weeks Gestational Age Between Birth and Five Years of Age |
| NCT03222375 | Not specified | RECRUITING | SQUED™ Series 28.1 Home-use and Treatment of Autowave Reverberator of Autism |
| NCT03229928 | Not specified | COMPLETED | Clinical Testing of a Real-Time Behavior Measurement Tool: Measuring Outcomes for CHAnge |
| NCT03232489 | Not specified | UNKNOWN | Study for the Evaluation of the Feasibility of Applying Advanced MRI Scanning in Pediatric Clinical Practice |
Related Atlas pages
- Associated diseases: pontocerebellar hypoplasia, type 14
- Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): pontocerebellar hypoplasia, type 14