Human CXCL4/PF4 Antibody

Catalog # Availability Size / Price Qty
MAB7952
MAB7952-SP
Detection of Human CXCL4/PF4 by Western Blot.
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Product Details
Citations (2)
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Human CXCL4/PF4 Antibody Summary

Species Reactivity
Human
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.
Source
Monoclonal Mouse IgG2B Clone # 170138
Purification
Protein A or G purified from hybridoma culture supernatant
Immunogen
E. coli-derived recombinant human CXCL4/PF4
Glu32-Ser101
Accession # P02776.2
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.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Western Blot
0.5 µg/mL
See below
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
Human immature dentritic cells fixed with paraformaldehyde and permeabilized with saponin

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.

Data Example

Western Blot Detection of Human CXCL4/PF4 antibody by Western Blot. View Larger

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 (Catalog # 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.

Reconstitution Calculator

Reconstitution Calculator

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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Preparation and Storage

Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
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: 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.
Entrez Gene IDs
5196 (Human); 56744 (Mouse); 360918 (Rat)
Alternate Names
chemokine (C-X-C motif) ligand 4; C-X-C motif chemokine 4; CXCL4; CXCL4iroplact; Iroplact; MGC138298; Oncostatin-A; PF4; PF-4; platelet factor 4; SCYB4oncostatin-A

Product Datasheets

Citations for Human CXCL4/PF4 Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

2 Citations: Showing 1 - 2
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  1. Collagen can selectively trigger a platelet secretory phenotype via glycoprotein VI.
    Authors: Ollivier V, Syvannarath V, Gros A, Butt A, Loyau S, Jandrot-Perrus M, Ho-Tin-Noe B
    PLoS ONE, 2014;9(8):e104712.
    Species: Human
    Sample Types: Whole Cells
    Applications: Flow Cytometry
  2. Functional divergence between 2 chemokines is conferred by single amino acid change.
    Authors: Dubrac A, Quemener C, Lacazette E, Lopez F, Zanibellato C, Wu WG, Bikfalvi A, Prats H
    Blood, 2010;116(22):4703-11.
    Species: Human
    Sample Types: Recombinant Protein
    Applications: Binding Assay

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Secondary Antibodies

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