منابع مشابه
Sodium terbium(III) polyphosphate
Single crystals of the title compound, NaTb(PO(3))(4), were obtained by solid-state reaction. This compound belongs to type II of long-chain polyphosphates with the general formula A(I)B(III)(PO(3))(4). It is isotypic with the NaNd(PO(3))(4) and NaEr(PO(3))(4) homologues. The crystal structure is built up of infinite crenelated chains of corner-sharing PO(4) tetra-hedra with a repeating unit of...
متن کاملSilver europium(III) polyphosphate
Europium(III) silver polyphosphate, AgEu(PO(3))(4), was prepared by the flux method. The atomic arrangement is built up by infinite (PO(3))(n) chains (periodicity of 4) extending along the c axis. These chains are joined to each other by EuO(8) dodeca-hedra. The Ag(+) cations are located in the voids of this arrangement and are surrounded by five oxygen atoms in a distorted [4+1] coordination.
متن کاملPolyphosphate and acidocalcisomes.
Inorganic polyphosphate (polyP) accumulates in acidocalcisomes, acidic calcium stores that have been found from bacteria to human cells. Proton pumps, such as the vacuolar proton pyrophosphatase (V-H(+)-PPase or VP1), the vacuolar proton ATPase (V-H(+)-ATPase) or both, maintain their acidity. A vacuolar transporter chaperone (VTC) complex is involved in the synthesis and translocation of polyP ...
متن کاملPolyphosphate enhances fibrin clot structure.
Polyphosphate, a linear polymer of inorganic phosphate, is present in platelet dense granules and is secreted on platelet activation. We recently reported that polyphosphate is a potent hemostatic regulator, serving to activate the contact pathway of blood clotting and accelerate factor V activation. Because polyphosphate did not alter thrombin clotting times, it appeared to exert all its proco...
متن کاملThe Polyphosphate Kinase Gene ppk2 Is Required for Mycobacterium tuberculosis Inorganic Polyphosphate Regulation and Virulence
The Mycobacterium tuberculosis gene Rv3232c/MT3329 (ppk2) encodes a class II polyphosphate kinase, which hydrolyzes inorganic polyphosphate (poly P) to synthesize GTP. We assessed the role of ppk2 in M. tuberculosis poly P regulation, antibiotic tolerance, and virulence. A ppk2-deficient mutant (ppk2::Tn) and its isogenic wild-type (WT) and complemented (Comp) strains were studied. For each str...
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ژورنال
عنوان ژورنال: Current Opinion in Hematology
سال: 2014
ISSN: 1065-6251
DOI: 10.1097/moh.0000000000000069