P4HB (Prolyl 4-hydroxylase beta chain; also PDI) is a 60 kDa member of the protein disulfide isomerase family. As an intracellular homodimer, it forms a tetrameric complex with P4H alpha chains to form an active prolyl 4 hydroxylase. This catalyses the hydroxylation of proline in collagen. On the cell surface, it reduces disulfide bonds in HIV that allow the virus to fuse with CXCR4 and enter susceptible cells. Mature human P4HB is 491 amino acids (aa) in length. It contains two TRX domains (aa 25 134 and 368 475) plus an ER retention sequence (aa 505 508). There is one potential isoform that shows an 11 aa substitution for the first 162 amino acids. Over aa 18 505, human P4HB shares 94% aa identity with mouse P4HB.
Human Protein Disulfide Isomerase/P4HB Antibody
R&D Systems | Catalog # AF4236
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Key Product Details
Species Reactivity
Applications
Label
Antibody Source
Product Specifications
Immunogen
Asp18-Lys505
Accession # P07237
Specificity
Clonality
Host
Isotype
Scientific Data Images for Human Protein Disulfide Isomerase/P4HB Antibody
Detection of Human Protein Disulfide Isomerase/P4HB by Western Blot.
Western blot shows lysates of PANC-1 human pancreatic carcinoma cell line and MCF-7 human breast cancer cell line. PVDF membrane was probed with 1 µg/mL of Goat Anti-Human Protein Disulfide Isomerase/ P4HB Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4236) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF017). A specific band was detected for Protein Disulfide Isomerase/P4HB at approximately 57 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.Protein Disulfide Isomerase/P4HB in HeLa Human Cell Line.
Protein Disulfide Isomerase/P4HB was detected in immersion fixed HeLa human cervical epithelial carcinoma cell line using Goat Anti-Human Protein Disulfide Isomerase/P4HB Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4236) at 1.7 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Goat IgG Secondary Antibody (red; Catalog # NL001) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.Detection of Human Protein Disulfide Isomerase/P4HB by Simple WesternTM.
Simple Western lane view shows lysates of PANC-1 human pancreatic carcinoma cell line and MCF-7 human breast cancer cell line, loaded at 0.2 mg/mL. A specific band was detected for Protein Disulfide Isomerase/P4HB at approximately 59 kDa (as indicated) using 10 µg/mL of Goat Anti-Human Protein Disulfide Isomerase/P4HB Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4236) followed by 1:50 dilution of HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF109). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.Applications for Human Protein Disulfide Isomerase/P4HB Antibody
Immunocytochemistry
Sample: Immersion fixed HeLa human cervical epithelial carcinoma cell line
Immunoprecipitation
Sample: Conditioned cell culture medium spiked with Recombinant Human Protein Disulfide Isomerase/P4HB (Catalog # 4236-DI), see our available Western blot detection antibodies
Simple Western
Sample: PANC‑1 human pancreatic carcinoma cell line and MCF‑7 human breast cancer cell line
Western Blot
Sample: PANC‑1 human pancreatic carcinoma cell line and MCF‑7 human breast cancer cell line
Reviewed Applications
Read 1 review rated 5 using AF4236 in the following applications:
Formulation, Preparation, and Storage
Purification
Reconstitution
Reconstitute at 0.2 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.
Formulation
Shipping
Stability & Storage
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Calculators
Background: Protein Disulfide Isomerase/P4HB
Long Name
Alternate Names
Gene Symbol
UniProt
Additional Protein Disulfide Isomerase/P4HB Products
Product Documents for Human Protein Disulfide Isomerase/P4HB Antibody
Certificate of Analysis
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Product Specific Notices for Human Protein Disulfide Isomerase/P4HB Antibody
For research use only
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Citations for Human Protein Disulfide Isomerase/P4HB Antibody
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Application: Western BlotSample Tested: RPMI 8226 human multiple myeloma cell lineSpecies: HumanVerified Customer | Posted 01/10/2018
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Protocols
Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.
- Appropriate Fixation of IHC/ICC Samples
- Cellular Response to Hypoxia Protocols
- ClariTSA™ Fluorophore Kits
- Detection & Visualization of Antibody Binding
- ICC Cell Smear Protocol for Suspension Cells
- ICC Immunocytochemistry Protocol Videos
- ICC for Adherent Cells
- Immunocytochemistry (ICC) Protocol
- Immunocytochemistry Troubleshooting
- Immunofluorescence of Organoids Embedded in Cultrex Basement Membrane Extract
- Immunohistochemistry (IHC) and Immunocytochemistry (ICC) Protocols
- Immunoprecipitation Protocol
- Preparing Samples for IHC/ICC Experiments
- Preventing Non-Specific Staining (Non-Specific Binding)
- Primary Antibody Selection & Optimization
- Protocol for VisUCyte™ HRP Polymer Detection Reagent
- Protocol for the Fluorescent ICC Staining of Cell Smears - Graphic
- Protocol for the Fluorescent ICC Staining of Cultured Cells on Coverslips - Graphic
- Protocol for the Preparation and Fluorescent ICC Staining of Cells on Coverslips
- Protocol for the Preparation and Fluorescent ICC Staining of Non-adherent Cells
- Protocol for the Preparation and Fluorescent ICC Staining of Stem Cells on Coverslips
- Protocol for the Preparation of a Cell Smear for Non-adherent Cell ICC - Graphic
- R&D Systems Quality Control Western Blot Protocol
- TUNEL and Active Caspase-3 Detection by IHC/ICC Protocol
- The Importance of IHC/ICC Controls
- Troubleshooting Guide: Western Blot Figures
- Western Blot Conditions
- Western Blot Protocol
- Western Blot Protocol for Cell Lysates
- Western Blot Troubleshooting
- Western Blot Troubleshooting Guide
- View all Protocols, Troubleshooting, Illustrated assays and Webinars