CD34 Antibody (ICO115)


Flow Cytometry: CD34 Antibody (ICO115) [NBP2-29455] - Analysis using the PE conjugate of NBP2-29455. Surface Staining of CD34 on KG-1 cells using CD34 antibody (red) and isotype control (green) at 5 ul/0.5 ug/10^6 more
Flow Cytometry: CD34 Antibody (ICO115) [NBP2-29455] - Surface flow cytometric analysis of CD34 on KG-1 cells using CD34 antibody (red) and isotype control (green) at 0.5 ug/10^6 cells.

Product Details

Reactivity Hu, RtSpecies Glossary
Applications WB, Flow, IF

CD34 Antibody (ICO115) Summary

Blast cells from a chronic myeloid leukemia patient were used as the immunogen for the CD34 antibody.
Cell surface
Hematopoietic Stem Cell Marker
This antibody recognizes a single chain, transmembrane, heavily glycosylated protein of 90-120kDa, which is identified as CD34. Its expression is a hallmark for identifying pluripotent hematopoietic stem or progenitor cells. Its expression is gradually lost as lineage committed progenitors differentiate. CD34 is a marker of choice for staining blasts in acute myeloid leukemia. In addition, it is expressed by soft tissue tumors, such as solitary fibrous tumor and gastrointestinal stromal tumor. CD34 expression is also found in vascular endothelium. Additionally, it appears that proliferating endothelial cells overexpress this molecule than the non-proliferating endothelial cells. Anti-CD34 labels > 85% of angiosarcoma and Kaposi's sarcoma, but shows low specificity.
IgG1 Kappa
Protein A or G purified
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  • Western Blot 0.5-1ug/ml
  • Flow Cytometry 0.5ug/million cells
  • Immunofluorescence 0.5-1ug/ml
Application Notes
Human Chromosome Location: 1q32.2
Mol. Weight of Antigen: 90 - 110kDa
Read Publication using NBP2-29455.

Packaging, Storage & Formulations

Store at 4C.
10mM PBS and 0.05% BSA
0.05% Sodium Azide
Protein A or G purified

Alternate Names for CD34 Antibody (ICO115)

  • CD34 antigenhematopoietic progenitor cell antigen CD34
  • CD34 molecule
  • CD34
  • HPCA1


CD34 a type 1 transmembrane protein, belonging to the sialomucin family, has important roles in adhesion which remain to be fully elucidated. CD34 has an intracellular cytoplasmic domain containing consensus sites for serine, theronine, tryrosine and active protein kinase C (PKC) phosphorylation thereby implicating a role for the protein in signal transduction processes. CD34 expression, as identified by antibody, is a hallmark for identifying pluripotential hematopoietic stem or progenitor cells. CD34 antibody positive populations expand and differentiate into the various lymphohematopoietic lineages. During differentiation, lineages lose CD34 expression and become CD34 antibody negative.

CD34 is also expressed on vascular endothelium, bone marrow stroma, embryonic fibroblasts, and neurons and antibody to CD34 is also useful in analyzing these populations. Positive staining has also been described in a number of malignancies including various sarcomas and fibromas, preB-ALL, peripheral nerve sheath tumors, and papillary thyroid carcinoma. If certain kinds of tumors are characteristically positive for CD34 antibody staining such as Ewing's sarcoma, a CD34 antibody negative result may potentially rule out that particular tumor.


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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Publications for CD34 Antibody (NBP2-29455)(1)

We have publications tested in 1 confirmed species: Rat.

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Product General Protocols

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Video Protocols

WB Video Protocol

FAQs for CD34 Antibody (NBP2-29455). (Showing 1 - 1 of 1 FAQ).

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

Secondary Antibodies


Isotype Controls

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Blogs on CD34.

The application of CD31/Pecam-1 (MEC 7.46) in breast cancer research
CD31/PECAM-1, or platelet endothelial cell adhesion molecule 1, is a 130-kDa glycoprotein expressed on vascular and hematopoietic cells.  Depending on the cell type, CD31/PECAM-1 expression can be largely localized to cell junctions, playing a rol...  Read full blog post.

CD68 (Cluster of differentiation 68, GP110, LAMP4, SCARD1)
CD68 belongs to a growing family of hematopoietic mucin-like molecules known as lysosomal/endosomal-associated membrane glycoproteins (LAMPs). Other LAMP family members included leukosialin, stem cell antigen CD34, and GlyCAM-1. CD68 encodes a 110-kD...  Read full blog post.

CD34 (Cluster of differentiation 34, hematopoietic progenitor cell antigen)
CD34 is a cell-surface glycoprotein type 1 transmembrane protein that belongs to the sialomucin family. CD34 comprises of an intracellular cytoplasmic domain with consensus sites for serine, threonine, tyrosine and active protein kinase C (PKC). Becau...  Read full blog post.

CD34 Serves as an Important Marker in Disease Research
CD34 is a membrane protein that aids cells in cell-cell adhesion. Although little is known about its function, CD34 is an important marker for hematopoietic stem cells (HSCs), muscle satellite cells, and endothelial cells. HSCs can be found in bone ma...  Read full blog post.

CD34 Serves as an Important Marker in Disease Research
CD34 is a cell surface glycoprotein that aids cells in cell-cell adhesion. It is expressed on endothelial cells where it is known to bind L-selectin and may aid in migration of T-cells. Moreover, it is expressed on hematopoietic stem cells (HSC), musc...  Read full blog post.

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Gene Symbol CD34

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