ERp57 (Endoplasmic reticulum resident protein 57; also Protein disulfide-isomerase A3/PDIA3) is a 57-60 kDa member of the protein disulfide isomerase family of proteins. Knockdown of ERp57 or antibody-targeted inhibition of the secreted form significantly impaired the secretion and accumulation of extracellular matrix. ERp57 is highly similar to other PDI family members in amino acid sequence and structural/functional domain organization. This protein plays an important role in endoplasmic reticulum quality control of newly synthesized glycoproteins, is critical in major histocompatability complex class I assembly and regulates gene expression. ERp57 has been implicated in human pathologies including cancer and Alzheimer's disease. Within aa 107 - 366, human ERp57 shares 92% aa sequence identity with mouse ERp57.
Human ERp57/PDIA3 Antibody
R&D Systems | Catalog # AF8219
Scientific images may be resized, cropped, or adjusted for brightness or contrast for presentation purposes. These updates are limited to presentation and do not affect the underlying scientific interpretation of the data. Where available, additional source data may be provided upon request.
Key Product Details
Species Reactivity
Validated:
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Applications
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Cited:
Label
Antibody Source
Product Specifications
Immunogen
Arg107-Lys366
Accession # P30101
Specificity
Clonality
Host
Isotype
Scientific Data Images for Human ERp57/PDIA3 Antibody
Detection of Human and Mouse ERp57/PDIA3 by Western Blot.
Western blot shows lysates of HeLa human cervical epithelial carcinoma cell line, HEK293 human embryonic kidney cell line, and Hepa 1-6 mouse hepatoma cell line. PVDF membrane was probed with 0.2 µg/mL of Sheep Anti-Human ERp57/PDIA3 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF8219) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). A specific band was detected for ERp57/PDIA3 at approximately 57 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.ERp57/PDIA3 in HeLa Human Cell Line.
ERp57/PDIA3 was detected in immersion fixed HeLa human cervical epithelial carcinoma cell line using Sheep Anti-Human ERp57/PDIA3 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF8219) at 15 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Sheep IgG Secondary Antibody (red; Catalog # NL010) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.ERp57/PDIA3 in Human Liver.
ERp57/PDIA3 was detected in immersion fixed paraffin-embedded sections of human liver using Sheep Anti-Human ERp57/PDIA3 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF8219) at 1 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Sheep HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS019) and counterstained with hematoxylin (blue). Specific staining was localized to the cytoplasm of hepatocytes. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.Detection of ERp57/PDIA3 by Western Blot
Protein kinase A (PKA) catalytic subunit alpha is localized within mitochondria of HeLa cells. (A) Representative immunoblots (n = 3) of PKA catalytic (cat) subunit, PKA regulatory (reg) subunit, the mitochondrial protein SDHa and of the cytosolic protein alpha -Tubulin with corresponding total protein load (TPL) in total cell lysate (TCL), cytosolic (Cyto) and mitochondrial (Mito) fractions isolated from HeLa cells. (B) Representative immunoblots (n = 3) of PKA cat, PKA reg, SDHa and TOM20 with corresponding total protein load (TPL) in mitochondrial fractions isolated from HeLa cells and treated as indicated. (C) Representative micrographs (n = 6) of HeLa cells expressing empty vector (pcDNA), PKA-Myc or mt-PKA-Myc and labelled with anti-Myc (green) and anti-TOM20 (red) as a mitochondrial marker. Scale bars = 5 μm. (D) Representative immunoblots (n = 3) of Myc, SDHa and alpha -Tubulin with corresponding total protein load (TPL) in TCL, cyto and mito fractions isolated from HeLa cells expressing empty vector (pcDNA), PKA-Myc or mt-PKA-Myc. (E) Representative immunoblots (n = 3) of Myc, TOM20, SDHa and SOD2 with corresponding total protein load (TPL) in mitochondrial enriched fractions isolated from HeLa cells expressing empty vector (pcDNA), PKA-Myc or mt-PKA-Myc and treated as indicated. (F) Representative immunoblots (n = 3) of Myc, PKA Cat, ATP5a, MFN2 and ERp57 with corresponding TPL in pellet and supernatant (SN) obtained after treatment of mitochondria isolated from HeLa cells expressing PKA-Myc or mt-PKA-Myc and treated as indicated. (G) Representative immunoblots (n = 5) of phospho-PKA substrates and Myc with corresponding total protein load (TPL) in mitochondrial enriched fractions isolated from HeLa cells expressing empty vector (pcDNA), PKA-Myc or mt-PKA-Myc. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/33167377), licensed under a CC-BY license. Not internally tested by R&D Systems.Detection of ERp57/PDIA3 by Western Blot
Mitochondrial matrix-localized Src regulates mitochondrial shape. a Representative immunoblotting (n = 3) of Src, cytosolic tubulin and mitochondrial SDHA in total cell lysate (TCL), cytosol- (cyto) and mitochondria- (mito) enriched fractions of Src+/+ and Src−/− MEFs, HEK293 and HeLa. b Representative immunoblotting (n = 3) of Src, the IMM protein SDHA and the OMM protein TOM20 in mitochondria-enriched fractions of HeLa cells treated as indicated. c Representative immunoblotting (n = 4) of Src, Smac-diablo, ATP5a and ERp57 in supernatant (SN) and pellet obtained from mitochondria-enriched fractions of HeLa cells treated with digitonin as indicated. d Representative micrographs (n = 3) of the plasma membrane marker wheat germ agglutinin (WGA), V5 and TOM20 labeling in Src+/+ and Src−/− mouse embryonic fibroblasts (MEFs) expressing pcDNA, Src-V5, mitochondria-targeted mtSrc-V5 and plasma membrane-targeted pmSrc-V5. e Quantitative analysis of mitochondrial morphology in region of interest (ROI) as shown in c. Scale bars: 20 μm. Data are presented as mean ± S.E.M. Data with different letters are statistically different (p < 0.05), according to one-way ANOVA followed by Tukey’s post hoc test Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/35637383), licensed under a CC-BY license. Not internally tested by R&D Systems.Detection of ERp57/PDIA3 by Western Blot
Mitochondrial matrix-localized Src regulates mitochondrial shape. a Representative immunoblotting (n = 3) of Src, cytosolic tubulin and mitochondrial SDHA in total cell lysate (TCL), cytosol- (cyto) and mitochondria- (mito) enriched fractions of Src+/+ and Src−/− MEFs, HEK293 and HeLa. b Representative immunoblotting (n = 3) of Src, the IMM protein SDHA and the OMM protein TOM20 in mitochondria-enriched fractions of HeLa cells treated as indicated. c Representative immunoblotting (n = 4) of Src, Smac-diablo, ATP5a and ERp57 in supernatant (SN) and pellet obtained from mitochondria-enriched fractions of HeLa cells treated with digitonin as indicated. d Representative micrographs (n = 3) of the plasma membrane marker wheat germ agglutinin (WGA), V5 and TOM20 labeling in Src+/+ and Src−/− mouse embryonic fibroblasts (MEFs) expressing pcDNA, Src-V5, mitochondria-targeted mtSrc-V5 and plasma membrane-targeted pmSrc-V5. e Quantitative analysis of mitochondrial morphology in region of interest (ROI) as shown in c. Scale bars: 20 μm. Data are presented as mean ± S.E.M. Data with different letters are statistically different (p < 0.05), according to one-way ANOVA followed by Tukey’s post hoc test Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/35637383), licensed under a CC-BY license. Not internally tested by R&D Systems.Applications for Human ERp57/PDIA3 Antibody
Immunocytochemistry
Sample: Immersion fixed HeLa human cervical epithelial carcinoma cell line
Immunohistochemistry
Sample: Immersion fixed paraffin-embedded sections of human liver
Western Blot
Sample: HeLa human cervical epithelial carcinoma cell line, HEK293 human embryonic kidney cell line, and Hepa 1‑6 mouse hepatoma cell line
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: ERp57/PDIA3
Long Name
Alternate Names
Gene Symbol
UniProt
Additional ERp57/PDIA3 Products
Product Documents for Human ERp57/PDIA3 Antibody
Certificate of Analysis
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Product Specific Notices for Human ERp57/PDIA3 Antibody
For research use only
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Citations for Human ERp57/PDIA3 Antibody
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Protocols
Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.
- Antigen Retrieval Protocol (PIER)
- Antigen Retrieval for Frozen Sections Protocol
- Appropriate Fixation of IHC/ICC Samples
- Cellular Response to Hypoxia Protocols
- Chromogenic IHC Staining of Formalin-Fixed Paraffin-Embedded (FFPE) Tissue Protocol
- Chromogenic Immunohistochemistry Staining of Frozen Tissue
- ClariTSA™ Fluorophore Kits
- Detection & Visualization of Antibody Binding
- Fluorescent IHC Staining of Frozen Tissue Protocol
- Graphic Protocol for Heat-induced Epitope Retrieval
- Graphic Protocol for the Preparation and Fluorescent IHC Staining of Frozen Tissue Sections
- Graphic Protocol for the Preparation and Fluorescent IHC Staining of Paraffin-embedded Tissue Sections
- Graphic Protocol for the Preparation of Gelatin-coated Slides for Histological Tissue Sections
- ICC Cell Smear Protocol for Suspension Cells
- ICC Immunocytochemistry Protocol Videos
- ICC for Adherent Cells
- IHC Sample Preparation (Frozen sections vs Paraffin)
- Immunocytochemistry (ICC) Protocol
- Immunocytochemistry Troubleshooting
- Immunofluorescence of Organoids Embedded in Cultrex Basement Membrane Extract
- Immunofluorescent IHC Staining of Formalin-Fixed Paraffin-Embedded (FFPE) Tissue Protocol
- Immunohistochemistry (IHC) and Immunocytochemistry (ICC) Protocols
- Immunohistochemistry Frozen Troubleshooting
- Immunohistochemistry Paraffin Troubleshooting
- Preparing Samples for IHC/ICC Experiments
- Preventing Non-Specific Staining (Non-Specific Binding)
- Primary Antibody Selection & Optimization
- Protocol for Heat-Induced Epitope Retrieval (HIER)
- Protocol for Making a 4% Formaldehyde Solution in PBS
- 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 & Fixation of Cells on Coverslips
- Protocol for the Preparation and Chromogenic IHC Staining of Frozen Tissue Sections
- Protocol for the Preparation and Chromogenic IHC Staining of Frozen Tissue Sections - Graphic
- Protocol for the Preparation and Chromogenic IHC Staining of Paraffin-embedded Tissue Sections
- Protocol for the Preparation and Chromogenic IHC Staining of Paraffin-embedded Tissue Sections - 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 and Fluorescent IHC Staining of Frozen Tissue Sections
- Protocol for the Preparation and Fluorescent IHC Staining of Paraffin-embedded Tissue Sections
- Protocol for the Preparation of Gelatin-coated Slides for Histological Tissue Sections
- 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: Immunohistochemistry
- 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