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Platelet heparin-neutralizing factor (platelet factor 4). 1975

E F Lüscher, and R Käser-Glanzman

The heparin-neutralizing platelet factor (PF4) is released from platelets under the influence of inducers of aggregation and nucleotide-release in the form of a high-molecular weight complex. The heparin-neutralizing activity is carried by a basic protein of molecular weight 29,700, four of which combine with a proteoglycan carrier, which in turn consists of 4 chondroitin sulfate A residues and a peptide moiety.

UI MeSH Term Description Entries
D008970 Molecular Weight The sum of the weight of all the atoms in a molecule. Molecular Weights,Weight, Molecular,Weights, Molecular
D009940 Organoids An organization of cells into an organ-like structure. Organoids can be generated in culture, e.g., self-organized three-dimensional tissue structures derived from STEM CELLS (see MICROPHYSIOLOGICAL SYSTEMS). They are also found in certain NEOPLASMS. Organoid
D010974 Platelet Aggregation The attachment of PLATELETS to one another. This clumping together can be induced by a number of agents (e.g., THROMBIN; COLLAGEN) and is part of the mechanism leading to the formation of a THROMBUS. Aggregation, Platelet
D011487 Protein Conformation The characteristic 3-dimensional shape of a protein, including the secondary, supersecondary (motifs), tertiary (domains) and quaternary structure of the peptide chain. PROTEIN STRUCTURE, QUATERNARY describes the conformation assumed by multimeric proteins (aggregates of more than one polypeptide chain). Conformation, Protein,Conformations, Protein,Protein Conformations
D001779 Blood Coagulation Factors Endogenous substances, usually proteins, that are involved in the blood coagulation process. Clotting Factor,Coagulation Factors,Blood Coagulation Factor,Clotting Factors,Coagulation Factor,Coagulation Factor, Blood,Coagulation Factors, Blood,Factor, Coagulation,Factors, Coagulation,Factor, Blood Coagulation,Factor, Clotting,Factors, Blood Coagulation,Factors, Clotting
D001792 Blood Platelets Non-nucleated disk-shaped cells formed in the megakaryocyte and found in the blood of all mammals. They are mainly involved in blood coagulation. Platelets,Thrombocytes,Blood Platelet,Platelet,Platelet, Blood,Platelets, Blood,Thrombocyte
D002627 Chemistry, Physical The study of CHEMICAL PHENOMENA and processes in terms of the underlying PHYSICAL PHENOMENA and processes. Physical Chemistry,Chemistries, Physical,Physical Chemistries
D006494 Heparin Antagonists Coagulant substances inhibiting the anticoagulant action of heparin. Antagonists, Heparin
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

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Platelet heparin-neutralizing activity (platelet factor 4).
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Polycistronic expression of human platelet factor 4 with heparin-neutralizing activity in Escherichia coli.
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Heparin-induced platelet factor 4 release by serial heparin injections.
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Binding of heparin to human platelet factor 4.
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Binding of platelet factor 4 to heparin oligosaccharides.
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