Human CD14 Antibody

Recombinant Monoclonal Antibody
Catalog # Availability Size / Price Qty
MAB11722-100
MAB11722-SP

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CD14 in Human Appendix via seqIF™ staining on COMET™
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Human CD14 Antibody Summary

Species Reactivity
Human
Specificity
Detects recombinant human CD14 protein in Direct ELISA.
Source
Recombinant Monoclonal Rabbit IgG Clone # 3334A
Purification
Protein A or G purified from hybridoma culture supernatant
Immunogen
Synthetic peptide
Accession # P08571
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Western Blot
2 µg/mL
Human tonsil
Immunohistochemistry
1-10 µg/mL
Immersion fixed paraffin-embedded sections of human appendix and human liver
Multiplex Immunofluorescence
3 µg/mL
Immersion fixed paraffin-embedded sections of human appendix

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Multiplex Immunofluorescence View Larger

CD14 in Human Appendix via seqIF™ staining on COMET™ CD14 was detected in immersion fixed paraffin-embedded sections of human Appendix using Rabbit Anti-Human CD14, Monoclonal Antibody (Catalog #MAB11722) at 3ug/mL at 37 ° Celsius for 4 minutes. Before incubation with the primary antibody, tissue underwent an all-in-one dewaxing and antigen retrieval preprocessing using PreTreatment Module (PT Module) and Dewax and HIER Buffer H (pH 9; Epredia Catalog # TA-999-DHBH). Tissue was stained using the Alexa Fluor™ Plus 647 Goat anti-Rabbit IgG Secondary Antibody at 1:200 at 37 ° Celsius for 2 minutes. (Yellow; Lunaphore Catalog # DR647RB) and counterstained with DAPI (blue; Lunaphore Catalog # DR100). Specific staining was localized to the membrane. Protocol available in COMET™ Panel Builder.

Immunohistochemistry View Larger

Detection of CD14 in Human Appendix. CD14 was detected in immersion fixed paraffin-embedded sections of human appendix using Rabbit Anti-Human CD14 Monoclonal Antibody (Catalog # MAB11722) at 3 µg/ml for 1 hour at room temperature followed by incubation with the Anti-Rabbit IgG VisUCyte™ HRP Polymer Antibody (Catalog # VC003) or the HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using VisUCyte Antigen Retrieval Reagent-Basic (Catalog # VCTS021). Tissue was stained using DAB (brown) and counterstained with hematoxylin (blue). Specific staining was localized to the membrane. View our protocol for IHC Staining with VisUCyte HRP Polymer Detection Reagents.

Immunohistochemistry View Larger

Detection of CD14 in Human Liver. CD14 was detected in immersion fixed paraffin-embedded sections of human liver using Rabbit Anti-Human CD14 Monoclonal Antibody (Catalog # MAB11722) at 3 µg/ml for 1 hour at room temperature followed by incubation with the Anti-Rabbit IgG VisUCyte™ HRP Polymer Antibody (Catalog # VC003) or the HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using VisUCyte Antigen Retrieval Reagent-Basic (Catalog # VCTS021). Tissue was stained using DAB (brown) and counterstained with hematoxylin (blue). Specific staining was localized to the membrane. View our protocol for IHC Staining with VisUCyte HRP Polymer Detection Reagents.

Western Blot View Larger

Detection of Human CD14 by Western Blot. Western Blot shows lysates of human tonsil. PVDF membrane was probed with 2 µg/ml of Rabbit Anti-Human CD14 Monoclonal Antibody (Catalog # MAB11722) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). A specific band was detected for CD14 at approximately 55 kDa (as indicated). This experiment was conducted under reducing conditions and using Western Blot Buffer Group 1.

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Preparation and Storage

Reconstitution
Reconstitute lyophilized material at 0.2 mg/ml in sterile PBS. For liquid material, refer to CoA for concentration.
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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.

Background: CD14

CD14 is a 55 kDa cell surface glycoprotein that is preferentially expressed on monocytes/macrophages. The human CD14 cDNA encodes a 375 amino acid (aa) residue precursor protein with a 19 aa signal peptide and a C-terminal hydrophobic region characteristic for glycosylphosphatidyinositol (GPI)-anchored proteins. Human CD14 has four potential N-linked glycosylation sites and also bears O-linked carbohydrates. The amino acid sequence of human CD14 is approximately 65% identical with the mouse, rat, rabbit, and bovine proteins. CD14 is a pattern recognition receptor that binds lipopolysaccharides (LPS) and a variety of ligands derived from different microbial sources. The binding of CD14 with LPS is catalyzed by LPS-binding protein (LBP). The toll-like-receptors have also been implicated in the transduction of CD14-LPS signals. Similar to other GPI-anchored proteins, soluble CD14 can be released from the cell surface by phosphatidyinositol-specific phospholipase C. Soluble CD14 has been detected in serum and body fluids. High concentrations of soluble CD14 have been shown to inhibit LPS-mediated responses. However, soluble CD14 can also potentiate LPS response in cells that do not express cell surface CD14.

References
  1. Wright, S.D. et al. (1990) Science 249:1431.
  2. Pugin, J. et al. (1993) Proc. Natl. Acad. Sci. USA 90:2744.
  3. Beutler, B. (2000) Current Opinion in Immunology 12:20.
  4. Stelter, F. (2000) Chem. Immunol. 74:25.
Entrez Gene IDs
929 (Human); 12475 (Mouse); 60350 (Rat); 100037938 (Porcine)
Alternate Names
CD14 antigen; CD14 molecule; CD14; monocyte differentiation antigen CD14; Myeloid cell-specific leucine-rich glycoprotein

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