Human CD34 Antibody

Name: Human CD34 Antibody
Brand: R&D Systems
SKU: MAB11441
Price: 459 USD
Availability: InStock

R&D Systems | Catalog # MAB11441

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Product Specifications
Scientific Data
Applications
Flow Cytometry
Preparation & Storage
Calculators
Background
Product Documents
Specific Notices
Research Areas
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Key Product Details

Species Reactivity

Human

Applications

Flow Cytometry, Immunocytochemistry

Label

Unconjugated

Antibody Source

Recombinant Monoclonal Rabbit IgG Clone # 2936H

View all CD34 Primary Antibodies »

Product Specifications

Immunogen

Chinese Hamster Ovary cell line, CHO-derived human CD34
Ser32-Thr290
Accession # P28906

Specificity

Detects human CD34 in direct ELISA.

Clonality

Monoclonal

Host

Rabbit

Isotype

IgG

Scientific Data Images for Human CD34 Antibody

Detection of CD34 in PBMC lymphocytes cells by Flow Cytometry.

PBMC lymphocytes were stained with Mouse Anti-Human CD45 PE‑conjugated Monoclonal Antibody (Catalog # FAB1430P) and either (A) Rabbit Anti-Human CD34 Monoclonal Antibody (Catalog # MAB11441) or (B) Normal Rabbit IgG Control (Catalog # MAB1050) followed by Allophycocyanin-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # F0111). View our protocol for Staining Membrane-associated Proteins.

Detection of CD34 in KG‑1 cells (positive) and K562 (negative) cells.

CD34 was detected in immersion fixed KG‑1 human acute myelogenous leukemia cells (positive) and absent in K562 human chronic myelogenous leukemia cells (negative) using Rabbit Anti-Human CD34 Monoclonal Antibody (Catalog # MAB11441) at 3 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Rabbit IgG Secondary Antibody (red; Catalog # NL004) and counterstained with DAPI (blue). Specific staining was localized to cell cytoplasm. View our protocol for Fluorescent ICC Staining of Non-adherent Cells.

Detection of CD34 in KG-1a cells by Flow Cytometry.

KG-1a cells were stained with Rabbit Anti-Human CD34 Monoclonal Antibody (Catalog # MAB11441, filled histogram) or isotype control antibody (Catalog # AB-105-C, open histogram), followed by Allophycocyanin-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # F0111). View our protocol for Staining Membrane-associated Proteins.

Applications for Human CD34 Antibody

Application

Recommended Usage

Flow Cytometry

0.25 µg/10⁶ cells
Sample: PBMC lymphocytes and KG‑1a human acute myelogenous leukemia cells

Immunocytochemistry

3-15 µg/mL
Sample: Immersion fixed KG‑1 human acute myelogenous leukemia cells (positive) and K562 human chronic myelogenous leukemia cells (negative)

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Advanced Features

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Spillover Popups - Visualize the spectra of individual fluorochromes
Antigen Density Selector - Match fluorochrome brightness with antigen density

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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.

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

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.

Volume (to add to vial)

Mass (in vial)

Desired Reconstitution Concentration

Background: CD34

CD34 is a 115 kDa glycosylated type I transmembrane protein; it was discovered as a hematopoietic cell-surface antigen (1, 2, 3). Human CD33 cDNA encodes a 385 amino acid (aa) precursor that contains a 31 aa signal sequence, a 259 aa extracellular domain (ECD), a 21 aa transmembrane sequence, and a 74 aa cytoplasmic domain. Within the ECD, human CD34 shares 55% and 52% aa sequence identity with mouse and rat CD34, respectively. This single-pass sialomucin‑like transmembrane protein is heavily glycosylated and phosphorylated by Protein Kinase C (PKC) (4, 5). CD34 is found on multipotent precursors, bone marrow stromal cells, embryonic fibroblasts, vascular endothelia, as well as some populations of mesenchymal stem cells, and tumor cell lines, and it is a common marker for diverse progenitors (6). CD34 is involved in the adhesion of stem cells to the bone marrow extracellular matrix or to stromal cells.