The enzyme 6-phospho-3-hexulose isomerase (YckF) from Bacillus subtilis has been prepared and crystallized in a form suitable for X-ray crystallographic analysis. Crystals were grown by the hanging-drop method at 291 K using polyethylene glycol 2000 monomethylether as precipitant. They diffract beyond 1.7 A using an in-house Cu Kalpha source and belong to either space group P6(5)22 or P6(1)22, ...

The sixth PDZ domain from GRIP1 and its complex with the octapeptide of the liprin-alpha1 C-terminus were crystallized at 294 K by the hanging-drop vapour-diffusion method. The native crystal belongs to space group P6(1)22 (or P6(5)22), with unit-cell parameters a = b = 40.3, c = 222.9 A. The complex crystal belongs to space group R32, with unit-cell parameters a = b = 117.8, c = 102.0 A. Nativ...

We calculate the vector and scalar form factors of the pion to two loops in Chiral Perturbation Theory. We estimate the unknown O(p6) constants using resonance exchange. We make a careful comparison to the available data and determine two O(p4) constants rather precisely, and two O(p6) constants less precisely. We also use Chiral Perturbation Theory to two loops to extract in a model–independen...

this study was conducted during two years (2007-2009) in shawoor agricultural research station on a silty-clay soil. experiment conducted in split plots in a randomized complete blocks design in three replications. main plots were planting methods including centrifugal broadcaster (p1), centrifugal broadcaster + furrower (p2), seed drill (p3), seed drill + furrower (p4), three lines bed drillin...

In the past few years there has been significant progress on the problem of finding exotic smooth structures on the manifolds Pm = CP #mCP 2 . The initial step was taken by Jongil Park, [P], who found the first exotic smooth structure on P7, and whose ideas renewed the interest in this subject. Peter Ozsvath and Zoltan Szabo proved that Park’s manifold is minimal [OS], and Andras Stipsicz and S...

Quasi-enantiomorphic crystals of the Y25F mutant of Escherichia coli L-asparaginase and of the native Erwinia chrysanthemi L-asparaginase were obtained in the hexagonal space groups P6(5)22 and P6(1)22, respectively. The structures of these highly homologous enzymes were solved by molecular replacement and were refined with data extending to 2.2-2.5 A. These structures were compared with each o...

Quantum computers have been shown to be capable to deal with problems like the factoring of numbers into primes in polynomial time, i.e. they might differ from classical Turing machines with respect to computational complexity, provided #P6=P. We reverse this conclusion by giving a plausibility argument for #P6=P by arguing that as a consequence of the basic rules of quantum mechanics classical...

Hydrophobins are fungal proteins that are capable of altering the hydrophobicity of surfaces by self-assembly at hydrophilic-hydrophobic interfaces. Here, the growth of hydrophobin crystals suitable for X-ray crystallography is reported. The hydrophobin HFBI from Trichoderma reesei was crystallized by vapour diffusion in hanging drops in 30% PEG 4000, 0.1 M sodium citrate pH 4.3 buffer containi...