Green crystal structure

Green (crystal structure Table 40) Orange-red, tram (P,P) and trans (P,N) isomers, enantiomers resolved 13C NMR, visible-UV Yellow optical isomers separated... 

Any orbital-based scheme can be used for crystal-structure calculations. The trend is toward more accurate methods. Some APW and Green s function methods use empirical parameters, thus edging them toward a semiempirical classification. In order of preference, the commonly used methods are ... 

Figure 8.4 Cro molecules from bacteriophage lambda form dimers both in solution and in the crystal structure. The main dimer interactions ate between p strands 3 from each subunit. In the diagram one subunit is green and the other is brown. Alpha helices 2 and 3, the helix-turn-helix motifs, are colored blue and red, respectively, in both subunits. (Adapted from D. Ohlendorf et al., /. Mol. Biol. 169 757-769, 1983.)...

Figure 17.14 Model of evolved mutant from cephalosphorinase shuffling. The sequence of the most active cephalosporinase mutant was modeled using the crystal structure of the class C cephalosporinase from Enterobacter cloacae. The mutant and wild-type proteins were 63% identical. This chimeric protein contained portions from three of the starting genes, including Enterobacter (blue), Klebsiella (yellow), and Citrobacter (green), as well as 33 point mutations (red). (Courtesy of A. Crameri.)...

Ormo, M., et al. (1996). Crystal structure of the Aequorea victoria green fluorescent protein. Science 273 1392-1395. 

Rosenow, M. A., Huffman, H. A., Phail, M. E., and Wachter, R. M. (2004). The crystal structure of the Y66L variant of green fluorescent protein supports a cyclization-oxidation-dehydration mechanism for chromophore maturation. Biochemistry 43 4464 1472. 

Reactions of UCI4 with [Li RC(NCy)2 (THF)]2 (R = Me, Bu ) in THF gave the tris(amidinate) compounds [RC(NCy)2]3UCl that could be reduced with lithium powder in THF to the dark-green homoleptic uranium(lll) complexes [RC(NCy)2]3U. Comparison of the crystal structure of [MeC(NCy)2]3U with those of the lanthanide analog showed that the average U-N distance is shorter than expected from a purely ionic bonding model. ... 

Treatment of UCI4 with the lithium complex obtained from dicyclohexylcar-bodiimide followed by crystallization from pyridine afforded a dinuclear uranium(rV) oxalamidinate complex in the form of dark green crystals in 94% yield (Scheme 191). The same compound could also be obtained by first reducing UCI4 to LiUCli (or UQs+LiCl) followed by reductive dimerization of di(cyclo-hexyl)carbodiimide as shown in Scheme 191. The molecular structure of this first oxalamidinato complex of an actinide element is depicted in Figure 31. ° ... 

Fig. 1 A ribbon diagram of the crystal structure of a substrate complex of the homo-dimer HIV-1 protease (lkj7) (Prabu-Jeyabalan et al. 2002), Each monomer is shown in cyan and pink the substrate is shown in green, and the catalytic aspartic acids are highlighted in yellow...

Fig. 6 Superimposition of inhibitors and key active site residues from crystal structures of oseltamivir carboxylate 18 brown carbons, PDB - 2qwk) and Neu5Ac2en 4 (green carbons, PDB - IfSb) in complex with influenza A virus siaMdase. Note the alternative conformations of the...

Fig. 3.18 Nucleosome core particle (NCP)-polyamide co-crystal structures (PDB codes 1M18 and 1M19). (Top) Partial structure, viewed down the superhelical axis. Base pairs 58-145 (shown in white) and associated proteins (H3, blue H4, green H2A, yellow H2B, red) are shown for each complex. Superhelix locations (SHLs) are labeled as each major...

Figure 13-12. The snapshots of the S2 (green) and S3 (cyan) binding states from the PMF calculation (top) and the results from the QM/MM X-ray optimization (bottom) superimposed on top of the crystal structure 1ZB6 (grey) and the electron density contour at 0.5a...

A colorless mineral known as corundum (composed of aluminum oxide) is colorless. A red variety of corundum known as ruby, a precious stone, owes its color to impurities of chromium within the crystal structure of corundum. Blue and violet varieties of corundum are classified as sapphires, the blue being the result of iron and titanium impurities, and the violet of vanadium impurities within the corundum crystal structure. Another colorless mineral is beryl (composed of beryllium aluminum silicate) but blue aquamarine, green emerald, and pink morganite, are precious varieties of beryl including different impurities aquamarine includes iron, emerald chromium and vanadium, and morganite manganese. 

Wilmann PG, Turcic K, Battad JM, Wilce MC, Devenish RJ, Prescott M, Rossjohn J (2006) The 1.7 A crystal structure of Dronpa a photoswitchable green fluorescent protein. J Mol Biol 364 213-224... 

Figure 3.3 Comparison of the FepA and FhuA crystal structures. A portion of the 13-barrel (in violet is removed to show the globular cork domain (in yellow) that inserts from the periplasm into the channel of the 11-barrel. FhuA is loaded with ferrichrome (iron is shown as a green ball) (Ferguson et ah, 1998 Locher et ah, 1998). The FepA crystal structure does not reveal Fe3+-enterobactin, but the FepA structure shown might be partially occupied by enterobactin (Buchanan et ah, 1999). 

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