PTPRB - protein tyrosine phosphatase receptor type B Gene
Also Known as PTPB; HPTPB; VEPTP; HPTP-BETA; R-PTP-BETA
Species: Homo sapiens
About PTPRB
This gene has 11 transcripts (splice variants), 266 orthologues, 35 paralogues and is associated with 89 phenotypes. Broad expression in lung (RPKM 16.0), spleen (RPKM 13.5) and 22 other tissues.
Summary
The protein encoded by this gene is a member of the protein tyrosine Phosphatase (PTP) family. PTPs are known to be signaling molecules that regulate a variety of cellular processes including cell growth, differentiation, mitotic cycle, and oncogenic transformation. This PTP contains an extracellular domain, a single transmembrane segment and one intracytoplasmic catalytic domain, thus belongs to receptor type PTP. The extracellular region of this PTP is composed of multiple fibronectin type_III repeats, which was shown to interact with neuronal receptor and cell adhesion molecules, such as contactin and tenascin C. This protein was also found to interact with sodium channels, and thus may regulate sodium channels by altering tyrosine phosphorylation status. The functions of the interaction partners of this protein implicate the roles of this PTP in cell adhesion, neurite growth, and neuronal differentiation. Alternate transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2011]
PTPRB Products (5)
| mRNA | Protein | Name |
|---|---|---|
| NM_001109754.4 | NP_001103224.1 | receptor-type tyrosine-protein phosphatase beta isoform a |
| NM_001206971.3 | NP_001193900.1 | receptor-type tyrosine-protein phosphatase beta isoform c precursor |
| NM_001206972.3 | NP_001193901.1 | receptor-type tyrosine-protein phosphatase beta isoform d precursor |
| NM_001330204.2 | NP_001317133.1 | receptor-type tyrosine-protein phosphatase beta isoform e |
| NM_002837.6 | NP_002828.3 | receptor-type tyrosine-protein phosphatase beta isoform b precursor |
| Molecular Function GO Annotation | Evidence | References | Source |
|---|---|---|---|
| enables cadherin binding |
IPI
IPI: Inferred from physical interaction
|
28926625 | GOA |
| enables protein binding |
IPI
IPI: Inferred from physical interaction
|
12840032 | GOA |
| Biological Process GO Annotation | Evidence | References | Source |
|---|---|---|---|
| involved in dephosphorylation |
IDA
IDA: Inferred from direct assay
|
19116766 | GOA |
| involved in osteoblast differentiation |
IDA
IDA: Inferred from direct assay
|
22869525 | GOA |
| Cellular Component GO Annotation | Evidence | References | Source |
|---|---|---|---|
| part of receptor complex |
IDA
IDA: Inferred from direct assay
|
23382219 | GOA |
PTPRB Protein Structure
fn3: Fibronectin type III domain (36 - 100)
fn3: Fibronectin type III domain (116 - 189)
fn3: Fibronectin type III domain (292 - 364)
fn3: Fibronectin type III domain (379 - 454)
fn3: Fibronectin type III domain (469 - 541)
fn3: Fibronectin type III domain (556 - 629)
fn3: Fibronectin type III domain (644 - 720)
fn3: Fibronectin type III domain (733 - 807)
fn3: Fibronectin type III domain (821 - 894)
fn3: Fibronectin type III domain (908 - 982)
fn3: Fibronectin type III domain (998 - 1072)
fn3: Fibronectin type III domain (1087 - 1160)
fn3: Fibronectin type III domain (1176 - 1248)
fn3: Fibronectin type III domain (1262 - 1342)
fn3: Fibronectin type III domain (1357 - 1431)
Y_phosphatase: Protein-tyrosine phosphatase (1727 - 1960)
- 0
- 400
- 800
- 1200
- 1600
- 1997 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
receptor-type tyrosine-protein phosphatase beta |
|
PTPRB Protein-protein interaction Information
|
Type
|
Protein Name | Protein ID | Interactor | Interactor Species | Interactor ID | Detection Method | References |
|---|---|---|---|---|---|---|---|
|
Intra
|
PTPRB | P23467 | TEK | Homo sapiens | Q02763 | 19167335 | |
|
Intra
|
PTPRB | P23467 | EGFR | Homo sapiens | P00533 | 19167335 | |
|
Intra
|
PTPRB | P23467 | ERBB2 | Homo sapiens | P04626 | 19167335 | |
|
Intra
|
PTPRB | P23467 | MAPK3 | Homo sapiens | P27361 | 19167335 |
Related Diseases
| Diseases | Alias | |
|---|---|---|
| Generalized Epilepsy With Febrile Seizures Plus, Type 1 |
|
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| Skin Angiosarcoma |
|
|
| Ovarian Angiosarcoma |
|
|
| Diabetic Macular Edema |
|
|
| Liver Angiosarcoma |
|
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| Lymphangiosarcoma |
|
|
| Kuhnt-Junius Degeneration |
|
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| Vascular Cancer |
|
|
| Generalized Epilepsy With Febrile Seizures Plus |
|
|
Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Mus musculus | PTPRB | MGD | MGI:97809 |
| Macaca mulatta | PTPRB | VGNC | VGNC:76611 |
| Bos taurus | PTPRB | VGNC | VGNC:33545 |
| Rattus norvegicus | PTPRB | RGD | RGD:1305922 |
| Felis catus | PTPRB | VGNC | VGNC:69169 |
| Canis familiaris | PTPRB | VGNC | VGNC:45183 |
| Others | PTPRB | NCBI |