CD34 Antibody (CL14579) - Azide and BSA Free

Novus Biologicals | Catalog # NBP3-43916

Novus Biologicals
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Key Product Details

Validated by

Orthogonal Validation

Species Reactivity

Human

Applications

Immunohistochemistry-Paraffin

Label

Unconjugated

Antibody Source

Monoclonal Mouse IgG1 Clone # CL14579

Format

Azide and BSA Free
View all CD34 Primary Antibodies »

Product Specifications

Immunogen

This antibody was generated using a recombinant protein sequence of P28906, with the exact immunogen sequence remaining proprietary.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG1

Scientific Data Images for CD34 Antibody (CL14579) - Azide and BSA Free

CD34 Antibody (CL14579) - Azide and BSA Free Immunohistochemistry-Paraffin: CD34 Antibody [NBP3-43916]

Immunohistochemistry-Paraffin: CD34 Antibody [NBP3-43916]

Analysis in human placenta and liver tissues using NBP3-43916 antibody. Corresponding CD34 RNA-seq data are presented for the same tissues.
CD34 Antibody (CL14579) - Azide and BSA Free Immunohistochemistry-Paraffin: CD34 Antibody [NBP3-43916]

Immunohistochemistry-Paraffin: CD34 Antibody [NBP3-43916]

Staining of human kidney shows strong membranous positivity in endothelial cells.
CD34 Antibody (CL14579) - Azide and BSA Free Immunohistochemistry-Paraffin: CD34 Antibody [NBP3-43916]

Immunohistochemistry-Paraffin: CD34 Antibody [NBP3-43916]

Staining of human liver shows no positivity in hepatocytes as expected.
CD34 Antibody (CL14579) - Azide and BSA Free Immunohistochemistry-Paraffin: CD34 Antibody [NBP3-43916]

Immunohistochemistry-Paraffin: CD34 Antibody [NBP3-43916]

Staining of human placenta shows strong membranous positivity in endothelial cells.
CD34 Antibody (CL14579) - Azide and BSA Free Immunohistochemistry-Paraffin: CD34 Antibody [NBP3-43916]

Immunohistochemistry-Paraffin: CD34 Antibody [NBP3-43916]

Staining of human pancreas shows moderate membranous positivity in endothelial cells.

Applications for CD34 Antibody (CL14579) - Azide and BSA Free

Application
Recommended Usage

Immunohistochemistry-Paraffin

1:200 - 1:500
Application Notes
For IHC-Paraffin, HIER pH 6 retrieval is recommended.

Formulation, Preparation, and Storage

Purification

Protein A purified

Reconstitution

Centrifuge the vial of lyophilized antibody at 12,000 x g for 20 seconds. Reconstitute by adding sterile, distilled water to achieve a final antibody concentration of 1mg/ml.

Formulation

Lyophilized from a 0.2 um filtered solution in PBS with Trehalose

Format

Azide and BSA Free

Preservative

No Preservative

Concentration

LYOPH mg/ml

Shipping

The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.

Calculators

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: CD34

CD34, also known as Cluster of Differentiation 34, is a transmembrane phosphoglycoprotein that is primarily known for being a surface marker for hematopoietic stem cells (HSCs) and progenitor cells (1,2). The CD34 protein consists of a heavily glycosylated extracellular domain, a single-pass transmembrane helix, and a cytoplasmic tail with PDZ binding motifs (1,3). Human CD34 has two protein isoforms consisting of 385 amino acids (aa) for the canonical isoform and 328 aa for isoform 2 (3,4). The canonical CD34 isoform has calculated theoretical molecular weight of 40 kDa and an observed molecular weight of ~115 kDa (1,3,4). L-Selectin (CD62L) is the most common ligand for CD34, but it has also been shown to bind CrkL (1,3).

CD34 has commonly been used as a marker for the diagnosis and classification of various diseases and pathologies including leukemia and solitary fibrous tumor (SFT) (2,5). In terms of immunohistochemistry and histopathology, CD34 has been the most common marker for SFT and is expressed in ~79% of cases (5). In addition to its use as a cell marker, CD34-postive (CD34+) hematopoietic stem cells have been used therapeutically in patients following radiation or chemotherapy due to their regenerative potential (6). There are several clinical trials showing promising results for CD34+ cell therapy for cardiovascular diseases including heart failure, ischemia, dilated cardiomyopathy, acute myocardial infarction, and angina (6). Besides hematopoietic lineages, CD34 is also expressed in non-hematopoietic cells including mesenchymal stem cells, endothelial cells and progenitors, fibrocytes, muscle satellite cells, and some cancer stem cells (1,3). While the clinical and cell therapy applications of CD34 as a cell marker is well documented, the function of CD34 is less understood but has been implicated in many cellular processes such as adhesion, proliferation, signal transduction, differentiation, and progenitor phenotype maintenance (1,3).

References

1. Sidney, L. E., Branch, M. J., Dunphy, S. E., Dua, H. S., & Hopkinson, A. (2014). Concise review: evidence for CD34 as a common marker for diverse progenitors. Stem cells (Dayton, Ohio), 32(6), 1380-1389. https://doi.org/10.1002/stem.1661

2. Krause, D. S., Fackler, M. J., Civin, C. I., & May, W. S. (1996). CD34: structure, biology, and clinical utility. Blood, 87(1), 1-13

3. Kapoor, S., Shenoy, S. P., & Bose, B. (2020). CD34 cells in somatic, regenerative and cancer stem cells: Developmental biology, cell therapy, and omics big data perspective. Journal of cellular biochemistry, 121(5-6), 3058-3069. https://doi.org/10.1002/jcb.29571

4. Uniprot (P28906)

5. Davanzo, B., Emerson, R. E., Lisy, M., Koniaris, L. G., & Kays, J. K. (2018). Solitary fibrous tumor. Translational gastroenterology and hepatology, 3, 94. https://doi.org/10.21037/tgh.2018.11.02

6. Prasad, M., Corban, M. T., Henry, T. D., Dietz, A. B., Lerman, L. O., & Lerman, A. (2020). Promise of autologous CD34+ stem/progenitor cell therapy for treatment of cardiovascular disease. Cardiovascular research, 116(8), 1424-1433. https://doi.org/10.1093/cvr/cvaa027

Alternate Names

CD34, HPCA1

Gene Symbol

CD34

Additional CD34 Products

Product Documents for CD34 Antibody (CL14579) - Azide and BSA Free

Certificate of Analysis

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Product Specific Notices for CD34 Antibody (CL14579) - Azide and BSA Free

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Protocols

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FAQs for CD34 Antibody (CL14579) - Azide and BSA Free

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  • Q: I wonder if you have a CD105 or CD34 antibody suitable for IHC that is specific for human and do not bind mouse?

    A: We do not have any anti-human CD34 or CD105 antibodies that are confirmed to NOT detect the mouse protein. When we have tested an antibody and confirmed that it will not react with mouse samples, we will add Mu(-) to the datasheet, and unfortunately all of our CD105 and CD34 antibodies will either detect the mouse protein, or they have not been used in mouse samples before.

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