Recombinant Human Protein disulfide-isomerase (P4HB) — This multifunctional protein catalyzes the formation, breakage and rearrangement of disulfide bonds. Purity >90%.
| Product Sku | BCRECP-001319 |
| Product Description | Recombinant Human Protein disulfide-isomerase (P4HB) Protein is expressed from E.coli with N-terminal 6xHis-tagged. It contains 18-508aa. [Accession | P07237]. |
| Uniprot No. | P07237 |
| Gene Names | P4HB |
| Purity | Greater than 90% as determined by SDS-PAGE. |
| Expression System | E.coli |
| Expression Region | 18-508aa |
| Species | Homo sapiens (Human) |
| Tag Info | N-terminal 6xHis-tagged |
| Molecular weight | 59.3kDa |
| Activity | Please contact us to obtain bioactivity data. |
| Buffer | If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose. |
| Storage | Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles. |
| Research Areas | Cancer |
This multifunctional protein catalyzes the formation, breakage and rearrangement of disulfide bonds. At the cell surface, seems to act as a reductase that cleaves disulfide bonds of proteins attached to the cell.
Recombinant Human Protein disulfide-isomerase (P4HB) — This multifunctional protein catalyzes the formation, breakage and rearrangement of disulfide bonds. Purity >90%. Suitable for ELISA and Western Blot applications. Explore more Enzyme proteins →
Recommended applications depend on the target, product format, and product-specific validation data. Refer to the product datasheet or Certificate of Analysis (CoA), or contact BioCrest Sci for application guidance.
Biological Activity: Please contact us to obtain bioactivity data.
Storage: Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shipping & Lead Time: Availability, shipping conditions, and estimated lead time are confirmed in the formal quotation or order confirmation based on the product format, destination, and order requirements.
This multifunctional protein catalyzes the formation, breakage and rearrangement of disulfide bonds. At the cell surface, seems to act as a reductase that cleaves disulfide bonds of proteins attached to the cell. May therefore cause structural modifications of exofacial proteins. Inside the cell, seems to form/rearrange disulfide bonds of nascent proteins. At high concentrations and following phosphorylation by FAM20C, functions as a chaperone that inhibits aggregation of misfolded proteins (PubMed:32149426). At low concentrations, facilitates aggregation (anti-chaperone activity). May be involved with other chaperones in the structural modification of the TG precursor in hormone biogenesis. Also acts as a structural subunit of various enzymes such as prolyl 4-hydroxylase and microsomal triacylglycerol transfer protein MTTP. Receptor for LGALS9; the interaction retains P4HB at the cell surface of Th2 T helper cells, increasing disulfide reductase activity at the plasma membrane, altering the plasma membrane redox state and enhancing cell migration (PubMed:21670307)
Endoplasmic reticulum; Endoplasmic reticulum lumen; Melanosome; Cell membrane (Peripheral membrane protein)
Cole-Carpenter syndrome 1 (CLCRP1) : A form of Cole-Carpenter syndrome, a disorder characterized by features of osteogenesis imperfecta such as bone deformities and severe bone fragility with frequent fractures, in association with craniosynostosis, ocular proptosis, hydrocephalus, growth failure and distinctive facial features. Craniofacial findings include marked frontal bossing, midface hypoplasia, and micrognathia. Despite the craniosynostosis and hydrocephalus, intellectual development is normal. CLCRP1 inheritance is autosomal dominant. [The disease is caused by variants affecting the gene represented in this entry]
Heterodimer; heterodimerizes with the protein microsomal triglyceride transfer MTTP (PubMed:16478722, PubMed:23475612, PubMed:26224785). Homodimer. Monomers and homotetramers may also occur. Interacts with P4HA2, forming a heterotetramer consisting of 2 alpha subunits (P4HA2) and 2 beta (P4HB), where P4HB plays the role of a structural subunit; this tetramer catalyzes the formation of 4-hydroxyproline in collagen (PubMed:7753822). Also constitutes the structural subunit of the microsomal triacylglycerol transfer protein MTTP in mammalian cells. Stabilizes both enzymes and retain them in the ER without contributing to the catalytic activity (By similarity). Binds UBQLN1 (PubMed:12095988). Interacts with ERO1B (PubMed:11707400). Binds to CD4, and upon HIV-1 binding to the cell membrane, is part of a P4HB/PDI-CD4-CXCR4-gp120 complex. Interacts with ILDR2 (By similarity). Interacts with ERN1/IRE1A (via N-terminus); the interaction is enhanced by phosphorylation of P4HB by FAM20C in response to endoplasmic reticulum stress and results in attenuation of ERN1 activity (PubMed:32149426)
Explore closely related product collections, technology platforms, and custom production resources.
Submit the Online Inquiry form with your required quantity and specifications, or email sales@biocrestsci.com. Available sizes, pricing, stock status, documentation, and estimated lead time are confirmed in the formal quotation.
Availability, dispatch timing, shipping conditions, and delivery estimates depend on the product format, destination, and order requirements. These details are confirmed in the formal quotation or order confirmation.
Follow the storage and handling instructions in the product-specific datasheet and Certificate of Analysis (CoA). Requirements may vary by product form and formulation; contact BioCrest Sci if product-specific guidance is needed.
Quality-control data such as identity, purity, endotoxin level, or biological activity are provided only when specified on this product page, the datasheet, or Certificate of Analysis (CoA). Biological activity is not implied unless explicitly stated.
