Phosphate, different dimensionalities

Aufbau Principle of Complex Open-Framework Structures of Metal Phosphates with Different Dimensionalities... 

Rao, C, N, R, Natarajan. S. Choudhury, A. Neeraj,. Ayi, A. A, Aufbau Principle of Complex Open-Framework Structures of Metal Phosphates with Different Dimensionalities. Acc, Chem, Res. 2001, 34, B0-B7,... 

Figure 1. Open-framework metal phosphates of different dimensionalities 1, ID linear chain structure with piperazine. [C4N2H, ][Zn(HP04)J-H20 2, ID ladder structure, [C6N4H22](i.5[Zn(HP04)2] with...

Since the first report in 1997 [60], a large number oftin(II) phosphate frameworks with different dimensionalities have been reported. Tin(II) is mainly found in... 

In the three-dimensional stmcture of actin, the environment of the phosphate moiety of the nucleotide appears roughly the same when CaADP or CaATP is bound. This observation argues against two different conformations. The reason why this is so is unclear. However, it must be stressed that the three-dimensional stmcture is derived from X-ray diffraction of crystals of the DNasel-actin complex, which, like G-actin, is unable to hydrolyze ATP. The conformation obtained may therefore correspond to G-actin frozen in the G-ATP state independently of the bound nucleotide. Stmctural studies in conjunction with site-directed mutagenesis experiments should eventually solve this problem. 

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