Meprins are multimeric proteases composed of alpha and beta subunits, which are members of the astacin family of zinc endopeptidases (1, 2). Both subunits form disulfide-linked homo- or heterooligomers, which are also referred to as Meprin A (composed of alpha subunits with or without beta subunits) and Merpin B (composed of beta subunits only) (3). Although the two subunits share 42% amino acid (aa) sequence identity, they differ significantly in their oligomeric structure, post-translational processing and subsequently cellular location, and substrate and peptide bond specificity (4). The 701 aa sequence of human Merpin beta subunit precursor consists of a signal peptide (aa 1 to 21), a pro region (aa 22 to 61), and a mature chain (aa 62 to 701) containing catalytic (aa 62 to 259), MAM (aa 260 to 429), MATH (aa 430 to 585), EGF-like (aa 604 to 644), transmembrane (aa 653 to 673), and cytoplasmic (aa 674 to 701) domains.
Human/Mouse Meprin beta Subunit/MEP1B Antibody
R&D Systems | Catalog # MAB28951
Key Product Details
Species Reactivity
Validated:
Human, Mouse
Cited:
Porcine
Applications
Validated:
Immunohistochemistry, Western Blot
Cited:
Immunohistochemistry, Western Blot
Label
Unconjugated
Antibody Source
Monoclonal Rat IgG1 Clone # 289731
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Product Specifications
Immunogen
Human embryonic kidney cell line HEK293-derived recombinant human Meprin beta Subunit/MEP1B
Thr23-Ser293
Accession # Q16820
Thr23-Ser293
Accession # Q16820
Specificity
Detects the pro form of human or mouse Meprin beta Subunit/MEP1B in Western blots. It does not react with the mature form.
Clonality
Monoclonal
Host
Rat
Isotype
IgG1
Scientific Data Images for Human/Mouse Meprin beta Subunit/MEP1B Antibody
Detection of Human and Mouse Meprin beta Subunit/ MEP1B by Western Blot.
Western blot shows lysates of human intestine tissue and mouse intestine tissue. PVDF membrane was probed with 1 µg/mL of Rat Anti-Human/Mouse Meprin beta Subunit/MEP1B Monoclonal Antibody (Catalog # MAB28951) followed by HRP-conjugated Anti-Rat IgG Secondary Antibody (Catalog # HAF005). A specific band was detected for Meprin beta Subunit/MEP1B at approximately 97 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.Meprin beta Subunit/MEP1B in Human Intestine.
Meprin beta Subunit/MEP1B was detected in immersion fixed paraffin-embedded sections of human intestine using Human/Mouse Meprin beta Subunit/MEP1B Monoclonal Antibody (Catalog # MAB28951) at 1 µg/mL overnight at 4 °C. Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using Antigen Retrieval Reagent-Basic (Catalog # CTS013). Tissue was stained using the Anti-Rat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS017) and counterstained with hemotoxylin (blue). Specific staining was localized to the Brush border of epithelial cells. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections. This application has not been tested in mouse samplesDetection of Meprin beta Subunit/MEP1B by Western Blot
Representative proteins in ULF-EVs whose abundance increased with pregnancy development also significantly increased after ULF-EVs treatment of pTr2 cells. A Western blot analysis of MUC4, ACP5 and MEP1B in ULF-EVs. B Relative abundance of MUC4, ACP5 and MEP1B in pTr2 cells treated with ULF-EVs. C Images of the embryo-maternal interface stained with MEP1B antibodies. MEP1B was obviously expressed in the endometrium and trophoblast. The scale bar indicates 100 nm. D Quantitative analysis of MEP1B by assessing the average integrated optical density (IOD) in the endometrium. The data are displayed as mean ± SD and different lowercase letters correspond to significant differences at the p < 0.05 threshold. E Quantitative analysis of MEP1B by assessing IOD in the trophoblast. Asterisks indicate significant differences (mean ± SD) between 12 and 15P (**p < 0.01). F The relative expression level of MEP1B mRNA was determined by qRT-PCR. The data are displayed as mean ± SD and asterisk indicate significant differences (*p < 0.05) Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/36882792), licensed under a CC-BY license. Not internally tested by R&D Systems.Detection of Meprin beta Subunit/MEP1B by Western Blot
Representative proteins in ULF-EVs whose abundance increased with pregnancy development also significantly increased after ULF-EVs treatment of pTr2 cells. A Western blot analysis of MUC4, ACP5 and MEP1B in ULF-EVs. B Relative abundance of MUC4, ACP5 and MEP1B in pTr2 cells treated with ULF-EVs. C Images of the embryo-maternal interface stained with MEP1B antibodies. MEP1B was obviously expressed in the endometrium and trophoblast. The scale bar indicates 100 nm. D Quantitative analysis of MEP1B by assessing the average integrated optical density (IOD) in the endometrium. The data are displayed as mean ± SD and different lowercase letters correspond to significant differences at the p < 0.05 threshold. E Quantitative analysis of MEP1B by assessing IOD in the trophoblast. Asterisks indicate significant differences (mean ± SD) between 12 and 15P (**p < 0.01). F The relative expression level of MEP1B mRNA was determined by qRT-PCR. The data are displayed as mean ± SD and asterisk indicate significant differences (*p < 0.05) Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/36882792), licensed under a CC-BY license. Not internally tested by R&D Systems.Applications for Human/Mouse Meprin beta Subunit/MEP1B Antibody
Application
Recommended Usage
Immunohistochemistry
8-25 µg/mL
Sample: Immersion fixed paraffin-embedded sections of human intestine
Sample: Immersion fixed paraffin-embedded sections of human intestine
Western Blot
1 µg/mL
Sample: Human intestine tissue and mouse intestine tissue
Sample: Human intestine tissue and mouse intestine tissue
Formulation, Preparation, and Storage
Purification
Protein A or G purified from hybridoma culture supernatant
Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.
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Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Shipping
Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
- 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: Meprin beta Subunit/MEP1B
References
- Bond, J.S. and R.J. Beynon (1995) Protein Sci. 4:1247.
- Stocker, W. et al. (1995) Protein Sci. 4:823.
- Bertenshaw, G.P. et al. (2001) J. Biol. Chem. 276:13248.
- Ishmael, F.T. et al. (2005) J. Biol. Chem. 280:13895.
Alternate Names
MEP1B
Gene Symbol
MEP1B
UniProt
Additional Meprin beta Subunit/MEP1B Products
Product Documents for Human/Mouse Meprin beta Subunit/MEP1B Antibody
Certificate of Analysis
To download a Certificate of Analysis, please enter a lot or batch number in the search box below.
Note: Certificate of Analysis not available for kit components.
Product Specific Notices for Human/Mouse Meprin beta Subunit/MEP1B Antibody
For research use only
Related Research Areas
Citations for Human/Mouse Meprin beta Subunit/MEP1B 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
- IHC Sample Preparation (Frozen sections vs Paraffin)
- 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 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 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
- 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
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