Key Product Details

Species Reactivity

Validated:

Human

Cited:

Human

Applications

Validated:

Western Blot, Intracellular Staining by Flow Cytometry, CyTOF-ready

Cited:

Western Blot, Flow Cytometry, Binding Assay

Label

Unconjugated

Antibody Source

Monoclonal Mouse IgG2B Clone # 170138
View all CXCL4/PF4 Primary Antibodies »

Product Specifications

Immunogen

E. coli-derived recombinant human CXCL4/PF4
Glu32-Ser101
Accession # P02776.2

Specificity

Detects human CXCL4/PF4 in direct ELISAs and Western blots. In Western blots, no cross-reactivity with recombinant mouse (rm) CXCL6, recombinant human (rh) CXCL6, rhCXCL7, rmCXCL13 or rhCCL21 is observed.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG2B

Scientific Data Images for Human CXCL4/PF4 Antibody

Detection of Human CXCL4/PF4 antibody by Western Blot.

Detection of Human CXCL4/PF4 by Western Blot.

Western blot shows lysates of human spleen tissue and human platelets. PVDF membrane was probed with 0.5 µg/mL of Mouse Anti-Human CXCL4/PF4 Monoclonal Antibody (Catalog # MAB7952) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (HAF018). A specific band was detected for CXCL4/PF4 at approximately 11 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Detection of CXCL4/PF4 in PBMC monocytes by Flow Cytometry.

PBMC monocytes were stained with Mouse Anti-Human CXCL4/PF4 Monoclonal Antibody (Catalog # MAB7952, filled histogram) or isotype control antibody (Catalog # MAB0041, open histogram), followed by Allophycocyanin-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # F0101B). To facilitate intracellular staining, cells were fixed with Flow Cytometry Fixation Buffer (Catalog # FC004) and permeabilized with Flow Cytometry Permeabilization/Wash Buffer I (Catalog # FC005). View our protocol for Staining Intracellular Molecules.

Detection of CXCL4/PF4 in Platelets by Flow Cytometry.

Platelets were stained with Mouse Anti-Human Integrin  alpha 2b/CD41 APC‑conjugated Monoclonal Antibody (Catalog # FAB7616A) and either (A) Mouse Anti-Human CXCL4/PF4 Monoclonal Antibody (Catalog # MAB7952) or (B) Mouse IgG2B Flow Cytometry Isotype Control (Catalog # MAB0041) followed by Phycoerythrin-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # F0102B). To facilitate intracellular staining, cells were fixed with Flow Cytometry Fixation Buffer (Catalog # FC004) and permeabilized with Flow Cytometry Permeabilization/Wash Buffer I (FC005). View our protocol for Staining Intracellular Molecules.

Applications for Human CXCL4/PF4 Antibody

Application
Recommended Usage

CyTOF-ready

Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

Intracellular Staining by Flow Cytometry

0.25 µg/106 cells
Sample: PBMC monocytes and Platelets fixed with Flow Cytometry Fixation Buffer (Catalog # FC004) and permeabilized with Flow Cytometry Permeabilization/Wash Buffer I (Catalog # FC005)

Western Blot

0.5 µg/mL
Sample: Human spleen tissue and human platelets

Flow Cytometry Panel Builder

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Advanced Features

  • Spectra Viewer - Custom analysis of spectra from multiple fluorochromes
  • Spillover Popups - Visualize the spectra of individual fluorochromes
  • Antigen Density Selector - Match fluorochrome brightness with antigen density
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Flow Cytometry

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.

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Background: CXCL4/PF4

CXCL4, also known as Platelet Factor 4 (PF4), is an 8 kDa CXC chemokine that is stored in platelet alpha -granules as a homotetramer and secreted abundantly during platelet activation. Human CXCL4 is a 101 amino acid (aa) protein with a 32 aa signal sequence and a 70 aa mature protein that includes granule targeting and
heparin-binding sequences. CXCL4 has homology with IL-8 and beta -thromboglobulin and can form heteromultimers with IL-8. Mature human and mouse CXCL4 share 76% aa identity. The active protein consists of a tetramer composed of individual CXCL4 subunits. Megakaryocytes synthesize CXCL4 and store it as tetramers in
alpha -granules. The CXCL4 tetramers are secreted by activated platelets and can be measured at micromolar levels in serum. In contrast to other CXC chemokines, CXCL4 lacks chemotactic activity for polymorphonuclear granulocytes. CXCL4 does not contain an ELR motif. However, many other functions have been observed for CXCL4. CXCL4 is involved in monocyte survivial and differentiation into macrophages, has anti-angiogenic activity and promotes granule Protein C activation. CXCL4 has been demonstrated to inhibit the binding of FGF-2 to high-affinity receptors and its subsequent internalization. Cell surface neutrophil chondroitin sulfate chains serve as CXCL4 binding sites; affinity is controlled by the degree of sulfation of these chains.

References

  1. Poncz, M. et al. (1987) Blood 69:219.
  2. Scheuerer, B. et al. (2000) Blood 95:1158.
  3. Perollet, C. et al. (1998) Blood 91:3289.
  4. Petersen, F. et al. (1998) J. Immunol. 161:4347.
  5. Petersen, F. et al. (1999) J. Biol. Chem. 274:12376.
  6. Watanabe, O. et al. (1999) J. Hum. Genet. 44:173.

Alternate Names

PF4

Entrez Gene IDs

5196 (Human); 56744 (Mouse); 360918 (Rat)

Gene Symbol

PF4

UniProt

P02776.2

Additional CXCL4/PF4 Products

Product Documents for Human CXCL4/PF4 Antibody

Certificate of Analysis

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Product Specific Notices for Human CXCL4/PF4 Antibody

For research use only

Citations for Human CXCL4/PF4 Antibody

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