PTBP2
gene geneOn this page
Also known as brPTBnPTBPTBPTBLP
Summary
PTBP2 (polypyrimidine tract binding protein 2, HGNC:17662) is a protein-coding gene on chromosome 1p21.3, encoding Polypyrimidine tract-binding protein 2 (Q9UKA9). RNA-binding protein which binds to intronic polypyrimidine tracts and mediates negative regulation of exons splicing.
The protein encoded by this gene binds to intronic polypyrimidine clusters in pre-mRNA molecules and is implicated in controlling the assembly of other splicing-regulatory proteins. This protein is very similar to the polypyrimidine tract binding protein (PTB) but most of its isoforms are expressed primarily in the brain. Alternative splicing results in multiple transcript variants.
Source: NCBI Gene 58155 — RefSeq curated summary.
At a glance
- GWAS associations: 35
- Clinical variants (ClinVar): 64 total — 3 pathogenic
- MANE Select transcript:
NM_021190
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:17662 |
| Approved symbol | PTBP2 |
| Name | polypyrimidine tract binding protein 2 |
| Location | 1p21.3 |
| Locus type | gene with protein product |
| Status | Approved |
| Aliases | brPTB, nPTB, PTB, PTBLP |
| Ensembl gene | ENSG00000117569 |
| Ensembl biotype | protein_coding |
| OMIM | 608449 |
| Entrez | 58155 |
Gene structure
Transcript identifiers
Ensembl transcripts: 32 — 17 protein_coding, 9 retained_intron, 4 nonsense_mediated_decay, 2 protein_coding_CDS_not_defined
ENST00000370197, ENST00000370198, ENST00000426398, ENST00000459735, ENST00000460706, ENST00000462433, ENST00000476419, ENST00000476783, ENST00000482253, ENST00000492905, ENST00000609116, ENST00000674579, ENST00000674951, ENST00000675080, ENST00000675365, ENST00000675401, ENST00000675735, ENST00000676096, ENST00000676292, ENST00000706595, ENST00000706596, ENST00000706597, ENST00000706598, ENST00000706599, ENST00000890857, ENST00000938887, ENST00000938888, ENST00000938889, ENST00000938890, ENST00000938891, ENST00000968497, ENST00000968498
RefSeq mRNA: 8 — MANE Select: NM_021190
NM_001300985, NM_001300986, NM_001300987, NM_001300988, NM_001300989, NM_001300990, NM_001410833, NM_021190
CCDS: CCDS72828, CCDS72829, CCDS72830, CCDS754, CCDS91005, CCDS91006
Canonical transcript exons
ENST00000674951 — 14 exons
| Exon | Start | End |
|---|---|---|
| ENSE00003458415 | 96723564 | 96723594 |
| ENSE00003464272 | 96751425 | 96751500 |
| ENSE00003492375 | 96785059 | 96785254 |
| ENSE00003511921 | 96769703 | 96769875 |
| ENSE00003519797 | 96804800 | 96804939 |
| ENSE00003525761 | 96806419 | 96806452 |
| ENSE00003568917 | 96770708 | 96770851 |
| ENSE00003584338 | 96812712 | 96812928 |
| ENSE00003598607 | 96806866 | 96806958 |
| ENSE00003628024 | 96813029 | 96813106 |
| ENSE00003649021 | 96777836 | 96777946 |
| ENSE00003688193 | 96777585 | 96777749 |
| ENSE00003900845 | 96721784 | 96721872 |
| ENSE00003902319 | 96813276 | 96815049 |
Expression profiles
Bgee: expression breadth ubiquitous, 279 present calls, max score 97.25.
FANTOM5 (CAGE): breadth ubiquitous, TPM avg 32.8587 / max 933.6806, expressed in 1785 samples.
FANTOM5 promoters (2 alternative TSS)
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 4140 | 32.6337 | 1785 |
| 4141 | 0.2250 | 77 |
Top tissues by expression
285 total, by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| cortical plate | UBERON:0005343 | 97.25 | gold quality |
| ganglionic eminence | UBERON:0004023 | 97.17 | gold quality |
| corpus callosum | UBERON:0002336 | 96.69 | gold quality |
| ventricular zone | UBERON:0003053 | 96.66 | gold quality |
| embryo | UBERON:0000922 | 96.15 | gold quality |
| calcaneal tendon | UBERON:0003701 | 95.29 | gold quality |
| substantia nigra pars compacta | UBERON:0001965 | 95.26 | gold quality |
| blood vessel layer | UBERON:0004797 | 95.19 | gold quality |
| mucosa of stomach | UBERON:0001199 | 94.98 | gold quality |
| secondary oocyte | CL:0000655 | 94.68 | gold quality |
| substantia nigra pars reticulata | UBERON:0001966 | 94.50 | gold quality |
| male germ line stem cell (sensu Vertebrata) in testis | CL:0000089 ∩ UBERON:0000473 | 94.44 | gold quality |
| muscle layer of sigmoid colon | UBERON:0035805 | 94.30 | gold quality |
| superficial temporal artery | UBERON:0001614 | 93.75 | gold quality |
| subthalamic nucleus | UBERON:0001906 | 93.55 | gold quality |
| endocervix | UBERON:0000458 | 92.91 | gold quality |
| body of uterus | UBERON:0009853 | 92.81 | gold quality |
| esophagogastric junction muscularis propria | UBERON:0035841 | 92.81 | gold quality |
| tibia | UBERON:0000979 | 92.69 | gold quality |
| inferior vagus X ganglion | UBERON:0005363 | 92.67 | gold quality |
| lower esophagus muscularis layer | UBERON:0035833 | 92.41 | gold quality |
| saphenous vein | UBERON:0007318 | 92.40 | gold quality |
| lower esophagus | UBERON:0013473 | 92.38 | gold quality |
| superior vestibular nucleus | UBERON:0007227 | 92.36 | gold quality |
| ectocervix | UBERON:0012249 | 91.93 | gold quality |
| medulla oblongata | UBERON:0001896 | 91.90 | gold quality |
| pons | UBERON:0000988 | 91.84 | gold quality |
| left uterine tube | UBERON:0001303 | 91.83 | gold quality |
| dorsal plus ventral thalamus | UBERON:0001897 | 91.81 | gold quality |
| visceral pleura | UBERON:0002401 | 91.75 | gold quality |
Single-cell (SCXA)
Detected in 4 experiment(s), a significant marker in 2.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-GEOD-76312 | yes | 977.20 |
| E-ANND-3 | yes | 11.54 |
| E-MTAB-6911 | no | 369.44 |
| E-MTAB-6386 | no | 125.39 |
Regulation
Is transcription factor: no
Upstream regulators (CollecTRI, top): NFKB
miRNA regulators (miRDB)
200 targeting PTBP2, 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-8485 | 100.00 | 77.57 | 4731 |
| HSA-MIR-3064-3P | 100.00 | 70.09 | 1254 |
| HSA-MIR-3613-3P | 100.00 | 76.36 | 7965 |
| HSA-MIR-5011-5P | 100.00 | 83.46 | 5820 |
| HSA-MIR-4262 | 100.00 | 73.26 | 3931 |
| HSA-MIR-188-3P | 100.00 | 68.76 | 1240 |
| HSA-MIR-574-5P | 100.00 | 66.01 | 989 |
| HSA-MIR-3646 | 100.00 | 73.56 | 5283 |
| HSA-MIR-9-5P | 100.00 | 72.28 | 2361 |
| HSA-MIR-190A-3P | 100.00 | 80.35 | 5520 |
| HSA-MIR-1277-5P | 100.00 | 73.95 | 5056 |
| HSA-MIR-196A-5P | 100.00 | 68.16 | 684 |
| HSA-MIR-196B-5P | 100.00 | 68.16 | 681 |
| HSA-MIR-223-3P | 99.99 | 70.14 | 1140 |
| HSA-MIR-181A-5P | 99.99 | 72.96 | 2995 |
| HSA-MIR-181B-5P | 99.99 | 72.97 | 2996 |
| HSA-MIR-181C-5P | 99.99 | 72.95 | 2996 |
| HSA-MIR-181D-5P | 99.99 | 73.04 | 2997 |
| HSA-MIR-548C-3P | 99.99 | 74.01 | 7587 |
| HSA-MIR-4775 | 99.98 | 75.00 | 6394 |
| HSA-MIR-499A-5P | 99.98 | 70.79 | 1323 |
| HSA-MIR-3692-3P | 99.98 | 70.27 | 2139 |
| HSA-MIR-5696 | 99.98 | 72.36 | 4487 |
| HSA-MIR-548N | 99.98 | 71.94 | 4170 |
| HSA-MIR-12136 | 99.98 | 72.81 | 5713 |
| HSA-MIR-3148 | 99.97 | 75.06 | 6478 |
| HSA-MIR-607 | 99.97 | 73.62 | 5593 |
| HSA-MIR-6888-3P | 99.97 | 65.95 | 1170 |
| HSA-MIR-512-3P | 99.97 | 67.35 | 1049 |
| HSA-MIR-7152-3P | 99.97 | 67.47 | 849 |
Literature-anchored findings (GeneRIF, showing 17)
- The nPTB proximal promoter, although rich in G+C content and presenting putative binding sites for the transcription factors Sp1, NF-1, NF-kB and Oct-1, lacks a typical TATA box. (PMID:16002244)
- Study shows that PTB can function as an anti-repressor molecule to counteract the splicing inhibitory activity of SRp30c. (PMID:17548433)
- present fluorescence, NMR, and in vivo splicing data in support of a role of PTB in inducing RNA loops. We show that the RNA recognition motifs (RRMs) 3 and 4 of PTB can bind two distant pyrimidine tracts and bring their 5’ and 3’ ends in close proximity (PMID:20160105)
- Regulation of the mutually exclusive exons 8a and 8 in the CaV1.2 calcium channel transcript by polypyrimidine tract-binding protein. (PMID:21282112)
- Changes in miR-223/PTBP2 pathway could contribute of abnormal splicing in chronic myeloid leukemia. (PMID:23174904)
- Defining the multifunctional roles of PTB will contribute to the understanding of key regulatory events in gene expression. (PMID:24264039)
- In T98G glioma cells, the level of sumoylated PTBP2 was reduced compared to that of normal brain cells. Overall, this study shows that PTBP2 is posttranslationally modified by SUMO1. (PMID:24286314)
- MALAT1 binds to SFPQ releasing PTBP2 from the SFPQ/PTBP2 complex, the increased SFPQ-detached PTBP2 promotes cell proliferation and migration in colorectal cancer. (PMID:25025966)
- PTBP1 and PTBP2 impaired autoregulation of SRSF3 in oral squamous cell carcinoma cancer cells. (PMID:26416554)
- Data show that polypyrimidine tract-binding proteins nPTB and ROD1 interact with mitochondrial tRNA(Thr) in the cytoplasm outside of mitochondria. (PMID:26657638)
- It has been established that PTBP1 and PTBP2 are members of a family of cryptic exon repressors. (PMID:27681424)
- PTBP2 exon 10 inclusion is associated with the progression of CML and it is BCR-ABL1 dependent (PMID:30726713)
- LncRNA nuclear-enriched abundant transcript 1 shuttled by prostate cancer cells-secreted exosomes initiates osteoblastic phenotypes in the bone metastatic microenvironment via miR-205-5p/runt-related transcription factor 2/splicing factor proline- and glutamine-rich/polypyrimidine tract-binding protein 2 axis. (PMID:34459124)
- SON drives oncogenic RNA splicing in glioblastoma by regulating PTBP1/PTBP2 switching and RBFOX2 activity. (PMID:34548489)
- Associations between Gene-Gene Interaction and Overweight/Obesity of 12-Month-Old Chinese Infants. (PMID:35295960)
- Mapping PTBP2 binding in human brain identifies SYNGAP1 as a target for therapeutic splice switching. (PMID:37149717)
- KIS counteracts PTBP2 and regulates alternative exon usage in neurons. (PMID:38597390)
Cross-species orthologs
6 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| danio_rerio | ptbp2b | ENSDARG00000015901 |
| danio_rerio | ptbp2a | ENSDARG00000101947 |
| mus_musculus | Ptbp2 | ENSMUSG00000028134 |
| rattus_norvegicus | Ptbp2 | ENSRNOG00000010827 |
| drosophila_melanogaster | heph | FBGN0011224 |
| caenorhabditis_elegans | WBGENE00004207 |
Paralogs (5): PTBP1 (ENSG00000011304), HNRNPL (ENSG00000104824), PTBP3 (ENSG00000119314), HNRNPLL (ENSG00000143889), RBM20 (ENSG00000203867)
Protein
Protein identifiers
Polypyrimidine tract-binding protein 2 — Q9UKA9 (reviewed: Q9UKA9)
Alternative names: Neural polypyrimidine tract-binding protein, Neurally-enriched homolog of PTB, PTB-like protein
All UniProt accessions (9): A0A6Q8PEZ3, A0A6Q8PFC0, A0A6Q8PFE6, A0A6Q8PFT8, A0A6Q8PH43, A0A6Q8PH82, A0A7I2RVZ4, B4DI28, Q9UKA9
UniProt curated annotations — full annotation on UniProt →
Function. RNA-binding protein which binds to intronic polypyrimidine tracts and mediates negative regulation of exons splicing. May antagonize in a tissue-specific manner the ability of NOVA1 to activate exon selection. In addition to its function in pre-mRNA splicing, plays also a role in the regulation of translation. Reduced affinity for RNA.
Subunit / interactions. Monomer. Interacts with NOVA1; the interaction is direct. Identified in a mRNP complex, at least composed of DHX9, DDX3X, ELAVL1, HNRNPU, IGF2BP1, ILF3, PABPC1, PCBP2, PTBP2, STAU1, STAU2, SYNCRIP and YBX1. Part of a ternary complex containing KHSRP and HNRPH1. Interacts with NOVA2; the interaction is direct.
Subcellular location. Nucleus.
Tissue specificity. Mainly expressed in brain although also detected in other tissues like heart and skeletal muscle. Isoform 1 and isoform 2 are specifically expressed in neuronal tissues. Isoform 3 and isoform 4 are expressed in non-neuronal tissues. Isoform 5 and isoform 6 are truncated forms expressed in non-neuronal tissues.
Isoforms (6)
| UniProt ID | Names | Canonical? |
|---|---|---|
| Q9UKA9-1 | 1, nPTB1 | yes |
| Q9UKA9-2 | 2, nPTB2, PTBPLP-L | |
| Q9UKA9-3 | 3, nPTB3, PTBPLP-L' | |
| Q9UKA9-4 | 4, nPTB4 | |
| Q9UKA9-5 | 5, nPTB5, nPTB7, PTBPLP-S | |
| Q9UKA9-6 | 6, nPTB6, nPTB8, PTBPLP-S' |
RefSeq proteins (8): NP_001287914, NP_001287915, NP_001287916, NP_001287917, NP_001287918, NP_001287919, NP_001397762, NP_067013* (*=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR000504 | RRM_dom | Domain |
| IPR006536 | HnRNP-L/PTB | Family |
| IPR012677 | Nucleotide-bd_a/b_plait_sf | Homologous_superfamily |
| IPR021790 | PTBP1-like_RRM2 | Domain |
| IPR034799 | PTBP2_RRM3 | Domain |
| IPR034800 | PTBP2_RRM4 | Domain |
| IPR035002 | PTBP2_RRM1 | Domain |
| IPR035979 | RBD_domain_sf | Homologous_superfamily |
| IPR055204 | HNRNPL_RRM | Domain |
Pfam: PF11835, PF13893, PF22976
UniProt features (44 total): strand 17, helix 8, turn 6, domain 4, splice variant 4, modified residue 4, chain 1
Structure
Experimental structures (PDB)
3 structures.
| PDB | Method | Resolution (Å) |
|---|---|---|
| 4CQ1 | X-RAY DIFFRACTION | 1.69 |
| 2CQ1 | SOLUTION NMR | |
| 2MJU | SOLUTION NMR |
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-Q9UKA9-F1 | 73.84 | 0.28 |
Functional residue map
Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.
Post-translational modifications (4): 1, 26, 27, 308
Function
Pathways and Gene Ontology
Reactome pathways
0 pathways
MSigDB gene sets: 243 (showing top):
GOBP_SPINAL_CORD_DEVELOPMENT, GGGACCA_MIR133A_MIR133B, RNGTGGGC_UNKNOWN, GOBP_HINDBRAIN_DEVELOPMENT, GOBP_METENCEPHALON_DEVELOPMENT, GGTGTGT_MIR329, GCM_ZNF198, GOBP_NEGATIVE_REGULATION_OF_RNA_SPLICING, GRAESSMANN_APOPTOSIS_BY_DOXORUBICIN_DN, GCM_PPM1D, GOBP_NEURAL_PRECURSOR_CELL_PROLIFERATION, GTGCCTT_MIR506, AGTCTTA_MIR499, YY1_02, GOBP_PROTEIN_RNA_COMPLEX_ORGANIZATION
GO Biological Process (8): mRNA splice site recognition (GO:0006376), spinal cord development (GO:0021510), cerebellum development (GO:0021549), negative regulation of RNA splicing (GO:0033119), regulation of RNA splicing (GO:0043484), regulation of neural precursor cell proliferation (GO:2000177), mRNA processing (GO:0006397), RNA splicing (GO:0008380)
GO Molecular Function (4): RNA binding (GO:0003723), mRNA binding (GO:0003729), nucleic acid binding (GO:0003676), protein binding (GO:0005515)
GO Cellular Component (5): nucleus (GO:0005634), spliceosomal complex (GO:0005681), growth cone (GO:0030426), neuronal cell body (GO:0043025), membrane (GO:0016020)
GO top-level categories
Rollup of top GO terms by namespace:
| Category | Terms |
|---|---|
| anatomical structure development | 2 |
| RNA splicing | 2 |
| RNA processing | 2 |
| binding | 2 |
| spliceosomal complex assembly | 1 |
| protein-RNA complex assembly | 1 |
| central nervous system development | 1 |
| metencephalon development | 1 |
| negative regulation of gene expression | 1 |
| regulation of RNA splicing | 1 |
| regulation of gene expression | 1 |
| regulation of primary metabolic process | 1 |
| regulation of cell population proliferation | 1 |
| neural precursor cell proliferation | 1 |
| mRNA metabolic process | 1 |
| nucleic acid binding | 1 |
| RNA binding | 1 |
| intracellular membrane-bounded organelle | 1 |
| nuclear protein-containing complex | 1 |
| ribonucleoprotein complex | 1 |
| site of polarized growth | 1 |
| distal axon | 1 |
| somatodendritic compartment | 1 |
| cell body | 1 |
| cellular anatomical structure | 1 |
Protein interactions and networks
STRING
1388 interactions, top by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| PTBP2 | SFPQ | P23246 | 989 |
| PTBP2 | SRRM4 | A7MD48 | 926 |
| PTBP2 | NOVA2 | Q9UNW9 | 888 |
| PTBP2 | NOVA1 | P51513 | 861 |
| PTBP2 | RAVER1 | Q8IY67 | 843 |
| PTBP2 | KHSRP | Q92945 | 811 |
| PTBP2 | HNRNPH1 | P31943 | 776 |
| PTBP2 | HNRNPDL | O14979 | 755 |
| PTBP2 | HNRNPC | P07910 | 729 |
| PTBP2 | MORF4L1 | Q9UBU8 | 721 |
| PTBP2 | HNRNPA1 | P09651 | 710 |
| PTBP2 | CELF2 | O95319 | 698 |
| PTBP2 | SRSF3 | P23152 | 694 |
| PTBP2 | DAAM1 | Q9Y4D1 | 684 |
| PTBP2 | KHDRBS1 | Q07666 | 670 |
| PTBP2 | TPM1 | P09493 | 670 |
IntAct
44 interactions, top by confidence:
| A | B | Type | Score |
|---|---|---|---|
| IGF2BP1 | IGF2BP3 | psi-mi:“MI:0914”(association) | 0.640 |
| RBM10 | PTBP2 | psi-mi:“MI:0915”(physical association) | 0.550 |
| PTBP2 | QKI | psi-mi:“MI:0915”(physical association) | 0.550 |
| NHERF1 | psi-mi:“MI:0914”(association) | 0.530 | |
| PTBP2 | PTBP2 | psi-mi:“MI:0915”(physical association) | 0.370 |
| PTBP2 | PTBP1 | psi-mi:“MI:0915”(physical association) | 0.370 |
| PTBP2 | CCDC106 | psi-mi:“MI:0915”(physical association) | 0.370 |
| PTBP2 | psi-mi:“MI:0915”(physical association) | 0.370 | |
| TOM1 | PTBP2 | psi-mi:“MI:0915”(physical association) | 0.370 |
| EIF5A2 | PTBP2 | psi-mi:“MI:0915”(physical association) | 0.370 |
| CALCOCO2 | PTBP2 | psi-mi:“MI:0915”(physical association) | 0.370 |
| SNRPA | PTBP2 | psi-mi:“MI:0915”(physical association) | 0.370 |
| PUF60 | PTBP2 | psi-mi:“MI:0915”(physical association) | 0.370 |
| ELAVL1 | PTBP2 | psi-mi:“MI:0915”(physical association) | 0.370 |
| PTBP2 | HNRNPC | psi-mi:“MI:0915”(physical association) | 0.370 |
| PTBP2 | HNRNPAB | psi-mi:“MI:0915”(physical association) | 0.370 |
| PTBP2 | RBM4 | psi-mi:“MI:0915”(physical association) | 0.370 |
| MATR3 | PTBP2 | psi-mi:“MI:0915”(physical association) | 0.370 |
| HNRNPD | PTBP2 | psi-mi:“MI:0915”(physical association) | 0.370 |
| PTBP2 | KHDRBS3 | psi-mi:“MI:0915”(physical association) | 0.370 |
| KHDRBS1 | PTBP2 | psi-mi:“MI:0915”(physical association) | 0.370 |
| GOLGA2 | PTBP2 | psi-mi:“MI:0915”(physical association) | 0.370 |
| JUN | psi-mi:“MI:0914”(association) | 0.350 | |
| JUN | TPM3 | psi-mi:“MI:0914”(association) | 0.350 |
| IGF2BP1 | DDX3X | psi-mi:“MI:0914”(association) | 0.350 |
| STAT1 | KPNA6 | psi-mi:“MI:0914”(association) | 0.350 |
| RRP1B | ZNF785 | psi-mi:“MI:0914”(association) | 0.350 |
| TRAF2 | TMEM178B | psi-mi:“MI:0914”(association) | 0.350 |
BioGRID (111): PTBP2 (Two-hybrid), PTBP2 (Two-hybrid), PTBP2 (Two-hybrid), PTBP2 (Two-hybrid), MATR3 (Two-hybrid), PTBP2 (Affinity Capture-MS), PTBP2 (Affinity Capture-RNA), PTBP2 (Two-hybrid), PTBP2 (Affinity Capture-MS), PTBP2 (Affinity Capture-MS), PTBP2 (Affinity Capture-MS), PTBP2 (Affinity Capture-MS), PTBP2 (Synthetic Lethality), PTBP2 (Affinity Capture-MS), PTBP2 (Affinity Capture-MS)
ESM2 similar proteins: A2Y0J7, B5DF91, B8AM21, O22922, O95758, P09012, P17225, P26368, P26369, P26599, P43332, P45429, P70372, Q00438, Q06AA4, Q08E07, Q0DKM4, Q10MR0, Q12926, Q14576, Q15717, Q24562, Q28FX0, Q29099, Q2KIR1, Q39244, Q54J05, Q5R9Z6, Q5SZQ8, Q60899, Q60900, Q62189, Q66H20, Q6GLB5, Q8BHD7, Q8BHN5, Q8CFD1, Q8CH84, Q8CIN6, Q8H1S6
Diamond homologs: E9PT37, O95758, P0DW16, P17225, P26599, Q00438, Q14966, Q29099, Q3UQS8, Q5T481, Q61464, Q66H20, Q8BHD7, Q8WN55, Q91Z31, Q9FGL9, Q9UKA9, Q9ULV3, Q9Z118, P40567, P43243, P43244, Q15233, Q5FVM4, Q5RFL9, Q6ICX4, Q8K310, Q99K48, Q9MAC5, O74452, A2Y0J7, B8AM21, O22922, O74968, P08579, P09012, P43332, P45429, Q06AA4, Q0DKM4
SIGNOR signaling
3 interactions.
| A | Effect | B | Mechanism |
|---|---|---|---|
| PTBP2 | “down-regulates quantity by repression” | SRC | “post transcriptional regulation” |
| PTBP2 | “up-regulates activity” | KHSRP | binding |
| PTBP2 | “up-regulates activity” | HNRNPH1 | binding |
Enriched among interaction partners
Reactome pathways and GO biological processes over-represented among this gene’s 47 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 Polyadenylation | 6 | 16.0× | 2e-04 |
| Processing of Capped Intron-Containing Pre-mRNA | 6 | 14.9× | 2e-04 |
| mRNA Splicing - Major Pathway | 7 | 11.6× | 2e-04 |
| Dengue Virus-Host Interactions | 6 | 8.3× | 3e-03 |
GO biological processes:
| GO term | Partners | Fold | FDR |
|---|---|---|---|
| regulation of alternative mRNA splicing, via spliceosome | 6 | 35.7× | 7e-06 |
| negative regulation of translation | 5 | 23.9× | 5e-04 |
| mRNA processing | 6 | 11.5× | 1e-03 |
| RNA splicing | 5 | 10.8× | 4e-03 |
Disease & clinical
Clinical variants and AI predictions
ClinVar
64 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 3 |
| Likely pathogenic | 0 |
| Uncertain significance | 37 |
| Likely benign | 1 |
| Benign | 3 |
Top pathogenic / likely-pathogenic (3)
| Variant ID | HGVS | Classification |
|---|---|---|
| 442387 | GRCh37/hg19 1p36.33-q44(chr1:849467-249224684) | Pathogenic |
| 4528354 | NM_021190.4(PTBP2):c.2T>C (p.Met1Thr) | Pathogenic |
| 4528355 | NM_021190.4(PTBP2):c.41G>C (p.Arg14Thr) | Pathogenic |
SpliceAI
3331 predictions. Top by Δscore:
| Variant | Effect | Δscore |
|---|---|---|
| 1:96751422:T:G | acceptor_gain | 1.0000 |
| 1:96751423:A:AG | acceptor_gain | 1.0000 |
| 1:96751424:G:GG | acceptor_gain | 1.0000 |
| 1:96751424:GA:G | acceptor_gain | 1.0000 |
| 1:96751424:GAGA:G | acceptor_gain | 1.0000 |
| 1:96769701:A:AG | acceptor_gain | 1.0000 |
| 1:96769702:G:GA | acceptor_gain | 1.0000 |
| 1:96769702:GCC:G | acceptor_gain | 1.0000 |
| 1:96769702:GCCA:G | acceptor_gain | 1.0000 |
| 1:96769792:G:GT | donor_gain | 1.0000 |
| 1:96769792:G:T | donor_gain | 1.0000 |
| 1:96770704:TCAG:T | acceptor_loss | 1.0000 |
| 1:96770705:CA:C | acceptor_loss | 1.0000 |
| 1:96770706:A:AG | acceptor_gain | 1.0000 |
| 1:96770706:A:C | acceptor_loss | 1.0000 |
| 1:96770707:G:GA | acceptor_loss | 1.0000 |
| 1:96770707:G:GG | acceptor_gain | 1.0000 |
| 1:96770707:GGC:G | acceptor_gain | 1.0000 |
| 1:96770848:CCAA:C | donor_gain | 1.0000 |
| 1:96770849:CAA:C | donor_gain | 1.0000 |
| 1:96770849:CAAG:C | donor_loss | 1.0000 |
| 1:96770852:G:C | donor_loss | 1.0000 |
| 1:96770852:G:GG | donor_gain | 1.0000 |
| 1:96770853:T:A | donor_loss | 1.0000 |
| 1:96770854:AA:A | donor_loss | 1.0000 |
| 1:96777584:GCGT:G | acceptor_gain | 1.0000 |
| 1:96777746:CCAA:C | donor_gain | 1.0000 |
| 1:96777746:CCAAG:C | donor_loss | 1.0000 |
| 1:96777748:AAGTA:A | donor_loss | 1.0000 |
| 1:96777749:AGTAA:A | donor_loss | 1.0000 |
AlphaMissense
0 scored. Top likely-pathogenic:
dbSNP variants (sampled 300 via entrez): RS1000002728 (1:96776300 A>C), RS1000011396 (1:96740060 A>G), RS1000020033 (1:96784345 C>T), RS1000020869 (1:96722035 C>G,T), RS1000029168 (1:96758499 A>C), RS1000060480 (1:96744023 T>C), RS1000071003 (1:96784659 T>C), RS1000093032 (1:96814882 T>C,G), RS1000110485 (1:96782573 G>A), RS1000112457 (1:96733153 G>A,T), RS1000140282 (1:96803290 T>G), RS1000146260 (1:96823051 C>T), RS1000184840 (1:96799941 T>A), RS1000264236 (1:96760629 T>C), RS1000264688 (1:96778281 T>G)
Disease associations
OMIM: gene MIM:608449 | disease phenotypes:
GenCC curated gene-disease
Mondo (0):
Orphanet (0):
HPO phenotypes
0 total (0 of 0 shown, HPO-id order):
GWAS associations
35 associations (top):
| Study | Trait | p-value |
|---|---|---|
| GCST000434_3 | Schizophrenia | 6.000000e-07 |
| GCST000830_27 | Body mass index | 4.000000e-10 |
| GCST001565_8 | Schizophrenia | 5.000000e-07 |
| GCST002783_439 | Body mass index | 1.000000e-13 |
| GCST002783_515 | Body mass index | 2.000000e-12 |
| GCST002783_7 | Body mass index | 6.000000e-09 |
| GCST002783_87 | Body mass index | 4.000000e-07 |
| GCST004065_83 | Waist circumference | 6.000000e-06 |
| GCST004065_84 | Waist circumference | 5.000000e-09 |
| GCST004066_105 | Hip circumference | 8.000000e-07 |
| GCST004066_64 | Hip circumference | 3.000000e-10 |
| GCST004495_75 | BMI (adjusted for smoking behaviour) | 3.000000e-08 |
| GCST004495_88 | BMI (adjusted for smoking behaviour) | 1.000000e-06 |
| GCST004497_31 | Body mass index (joint analysis main effects and smoking interaction) | 1.000000e-06 |
| GCST004557_150 | Body mass index | 3.000000e-07 |
| GCST004558_50 | Body mass index (joint analysis main effects and physical activity interaction) | 4.000000e-06 |
| GCST004558_69 | Body mass index (joint analysis main effects and physical activity interaction) | 4.000000e-08 |
| GCST004560_35 | Body mass index in physically inactive individuals | 3.000000e-06 |
| GCST004904_105 | Body mass index | 4.000000e-10 |
| GCST005337_25 | Headache | 2.000000e-08 |
| GCST006268_490 | Reaction time | 2.000000e-08 |
| GCST006921_11 | Regular attendance at a pub or social club | 5.000000e-10 |
| GCST007326_23 | Number of sexual partners | 3.000000e-08 |
| GCST007327_11 | Smoking status (ever vs never smokers) | 2.000000e-08 |
| GCST007556_22 | Autism spectrum disorder | 4.000000e-08 |
| GCST007576_305 | Chronotype | 5.000000e-13 |
| GCST007576_74 | Chronotype | 5.000000e-13 |
| GCST007816_3 | Trunk fat mass adjusted for trunk lean mass | 7.000000e-10 |
| GCST008465_6 | Anorexia nervosa | 3.000000e-08 |
| GCST010266_1 | Femoral neck bone mineral density and trunk fat mass adjusted by trunk lean mass | 4.000000e-09 |
EFO canonical traits (10, from GWAS)
| EFO ID | Trait name |
|---|---|
| EFO:0004340 | body mass index |
| EFO:0004318 | smoking behavior |
| EFO:0008002 | physical activity measurement |
| EFO:0008393 | reaction time measurement |
| EFO:0009592 | social interaction measurement |
| EFO:0008328 | chronotype measurement |
| EFO:0007785 | femoral neck bone mineral density |
| EFO:0009819 | comparative body size at age 10, self-reported |
| EFO:0007828 | daytime rest measurement |
| EFO:0009749 | age at first sexual intercourse measurement |
Drugs & pharmacology
Drug and pharmacology data
Is drug target: no
PharmGKB: 1 entry (VIP=true, CPIC=false)
CTD chemical–gene interactions
42 total (human), top 30 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| Valproic Acid | affects expression, decreases expression, decreases methylation | 7 |
| bisphenol A | decreases methylation, affects cotreatment, decreases expression | 2 |
| 4-(5-benzo(1,3)dioxol-5-yl-4-pyridin-2-yl-1H-imidazol-2-yl)benzamide | affects cotreatment, increases expression, decreases expression | 2 |
| Phenylmercuric Acetate | affects cotreatment, decreases expression | 2 |
| aristolochic acid I | decreases expression, increases expression | 1 |
| methylmercuric chloride | decreases expression | 1 |
| testosterone undecanoate | affects cotreatment, decreases expression | 1 |
| tris(2-butoxyethyl) phosphate | affects expression | 1 |
| sodium arsenite | decreases expression, increases abundance | 1 |
| manganese chloride | decreases expression, increases abundance | 1 |
| obeticholic acid | decreases expression | 1 |
| abrine | increases expression | 1 |
| dorsomorphin | affects cotreatment, decreases expression | 1 |
| bisphenol S | decreases expression | 1 |
| jinfukang | affects cotreatment, decreases expression | 1 |
| LDN 193189 | affects cotreatment, increases expression | 1 |
| Temozolomide | increases expression | 1 |
| Sunitinib | increases expression | 1 |
| Arsenic | decreases expression, increases abundance | 1 |
| Atrazine | increases expression | 1 |
| Cisplatin | affects cotreatment, decreases expression | 1 |
| Cuprizone | decreases expression | 1 |
| Dexamethasone | affects cotreatment, decreases expression | 1 |
| Diethylstilbestrol | increases expression | 1 |
| Doxorubicin | decreases expression | 1 |
| Gold | decreases expression | 1 |
| Indomethacin | affects cotreatment, decreases expression | 1 |
| Manganese | decreases expression, increases abundance | 1 |
| Methyl Methanesulfonate | increases expression | 1 |
| Nicotine | increases expression | 1 |
Clinical trials (associated diseases)
0 trials via MONDO — disease-level, not drug-specific.
Related Atlas pages
- Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): anorexia nervosa