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Merck
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Key Documents

SRP3142

Sigma-Aldrich

PF-4 (CXCL4) human

recombinant, expressed in E. coli, ≥98% (SDS-PAGE), ≥98% (HPLC), suitable for cell culture

Sinonimo/i:

CXCL4, Ironplact, Oncostatin A, Platelet Factor-4

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About This Item

Codice UNSPSC:
12352202
NACRES:
NA.32

Origine biologica

human

Ricombinante

expressed in E. coli

Saggio

≥98% (HPLC)
≥98% (SDS-PAGE)

Forma fisica

lyophilized

Potenza

1.0-10.0 ng/mL

PM

7.8 kDa

Confezionamento

pkg of 20 μg

tecniche

cell culture | mammalian: suitable

Impurezze

<0.1 EU/μg endotoxin, tested

Colore

white

N° accesso UniProt

Condizioni di spedizione

wet ice

Temperatura di conservazione

−20°C

Informazioni sul gene

human ... PF4(5196)

Descrizione generale

Platelet factor-4 (PF-4) is a CXC chemokine that is expressed in megakaryocytes and stored in the alpha-granules of platelets. The gene encoding this protein is localized on human chromosome 4. Recombinant human PF-4 is a 7.8kDa protein containing 70 amino acid residues, including the four highly conserved residues present in CXC chemokines.

Azioni biochim/fisiol

Platelet factor-4 (PF-4) is chemotactic towards neutrophils and monocytes and has been shown to inhibit angiogenesis. This protein associates with heparin and neutralizes it. It also neutralizes various negatively charged proteoglycans.

Sequenza

EAEEDGDLQC LCVKTTSQVR PRHITSLEVI KAGPHCPTAQ LIATLKNGRK ICLDLQAPLY KKIIKKLLES

Stato fisico

Lyophilized with no additives.

Ricostituzione

Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20°C to -80°C.

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable


Certificati d'analisi (COA)

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Chemokines and Chemokine Receptors
Manel Juan
Wiley Guide to Chemical Incompatibilities (2013)
S S Huang et al.
The Journal of biological chemistry, 257(19), 11546-11550 (1982-10-10)
A large scale purification procedure for the human platelet factor 4 proteoglycan carrier molecule has been developed. A yield of 46% and a 33,000-fold purification have been achieved, using poly-L-lysine-Sepharose affinity column chromatography, PF4-agarose affinity column chromatography, and Bio-Gel A-0.5m
B Scheuerer et al.
Blood, 95(4), 1158-1166 (2000-02-09)
Unstimulated monocytes rapidly undergo physiological changes resulting in programmed cell death (apoptosis) while stimuli promoting differentiation of these cells into macrophages were shown to inhibit apoptotic processes. In the present study, we report that the platelet-derived alpha-chemokine platelet factor 4
CXCL4 Plasma Levels Are Not Associated with the Extent of Coronary Artery Disease or with Coronary Plaque Morphology.
Erbel C
PLoS ONE, 10(11), e0141693-e0141693 (2015)
CXCL4-platelet factor 4, heparin-induced thrombocytopenia and cancer.
Sandset PM
Thrombosis Research, 129, S97-100 (2012)

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