Structural comparison

McPhalen, C. A., James, M. N. G. Structural comparison of two serine proteinase-protein inhibitor complexes Eglin-C-Subtilisin Carlsberg and CI-2-subtilisin novo. Biochemistry 27 (1988) 6582-6598... 

Hohn L and C Sander 1993. Protein Structure Comparison by Alignment of Distance Matrices. Joun Molecular Biology 233 123-138. 

M Levitt, M Gerstein. A unified statistical framework for sequence comparison and structure comparison. Proc Natl Acad Sci USA 95 5913-5920, 1998. 

The differences with the existing automotive quality system requirements need careful examination. There are additions, deletions, and movements that users of QS-9000 Third Edition, AVSQ 94, EAQF 94, and VDA 6.1 1998 need to be aware of, as they affect not only supplier quality systems but the internal and external auditing practices. As the national requirements are not similarly structured comparisons are impossible to illustrate in a single table. Readers are therefore advised to compare specific text in each to discover the actual differences. The source of the requirements is depicted in the tables that follow. A dash (-) indicates that there is no matching requirement. 

Earlier studies of 4-aminopyridine 1-oxide were less conclusive. The solid-state infrared spectrum could be interpreted to indicate the existence of both the imino structure and/or, more probably, the amino structure. Comparison of the actual pKa value of 4-aminopyridine 1-oxide wdth the value calculated using the Hammett equation was considered to indicate that the compound existed as such or as an equilibrium mixture with l-hydroxypyrid-4-onimine, the latter possibility being considered the less likely on the basis of resonance and bond energies/ Resonance energy and ultraviolet spectral considerations have been advanced to support the 4-aminopyridine 1-oxide structure/ The presence of an infrared absorption band at... 

The only structurally characterized In—Sb adduct is (Me3SiCH2)3 In—Sb(Tms)3 19 [38], featuring an In—Sb bond distance of 300.8(1) pm. Due to the lack of other structurally characterized In—Sb adducts, no structural comparisons can be made. The In—Sb bond length found in 19 is supposed to be at the lower end of the In—Sb dative bond range since the covalent radius of In (r ov 143 pm) is about 17 pm larger than those of the lighter elements Al and Ga. Therefore, In—Sb dative bonds are expected to... 

Fig. 5. Structural comparison of the water-soluble fragments of the Rieske proteins from (a) spinach chloroplasts and (b) beef heart mitochondria. Conserved smd vEiriable regions are highlighted and the conserved /3-loop discussed in Fig. 6 is denoted by darker gray on the rear of the molecules.

Fig. 14.8 Structural comparison of (a) Nag.xAgxGe4Se,o to (b) NagGe4SeiO In each figure, Na is black, Ge dark grey, Se light grey, and AgSe octahedra are shaded grey. The view in each figure is along close-packed selenium layers, down the Ge-Ge bonds in the GejSe units.

Slotta U, Hess S, Spiess K et al (2007) Spider silk and amyloid fibrils a structural comparison. Macromol Biosci 7 183-188... 

Nardi-Del V T, C Kutihara, C Park, N Esaki, K Soda (1997) Bacterial DL-2-haloacid dehalogenase from Pseudomonas sp. strain 113 gene cloning and structural comparison with D- and L-2-haloacid dehalogenases. J Bacterial 179 4232-4238. 

A few additional structural comparisons between the homonuclear gold and silver complexes and the mixed gold and silver complexes are of interest. In the dimer of the... 

Park S, Wasileski SA, Weaver MJ. 2001. Electrochemical infrared characterization of carbon-supported platinum nanoparticles A benchmark structural comparison with single-crystal electrodes and high-nuclearity carbonyl clusters. J Phys Chem B 105 9719 -9725. 

The ability of cobalt(II), nickel(II), and copper(II) to exhibit a greater tendency than Zn(II) towards bidentate coordination is further illustrated by structural comparisons within a series of bridging carbonate complexes (188). For example, of the complexes [TpPr 2]M 2(/x-C03) (M = Mn, Fe, Co, Ni, Cu, Zn), only the zinc derivative does not exhibit bidentate coordination at both metal centers (151,153). Furthermore, the carbonate ligand in the complexes [TpPr 2]M 2(/x-C03) (M = Mn, Fe, Co, Ni, Cu) also exhibits varying degrees of asymmetry that closely parallel the series of nitrate complexes described earlier (Fig. 47 and Table IX). 

The structural comparison (Fig. 3) with both the twofold tris(trimethylsilyl)methyl substituted acetylene and 1,4-benzene derivatives (Fig. 1) as well as with the literature data [6a] for hexa-kis(rm.butyl)disilane [6b] containing a SiSi bond elongated to 270 pm ( ), for the linear ( ) hexa-kis(rm.butyl)disiloxane [6c] or for di(tris(trimethylsilyl)silyl)zinc [6d] is based advantageously on a model in which the two substituent half-shells are separated along their central C3 axes by spacers of different lengths. 

Wesson, D.M., Porter, C. and Collins, F.H. (1992) Sequence and secondary structure comparisons of ITS rDNA in mosquitoes (Diptera Culicidae). Molecular Phylogenetics and Evolution 1, 253—269. 

Ross, P. K., and E. I. Solomon. 1991. An Electronic Structural Comparison of Cooper-Peroxide Complexes of Relevance to Hemocyanin and Tyrosinase Active Sites. J. Am. Chem. Soc. 113, 3246. 

M. Yamada, M. Elias, K. Matsushita, C.T. Migita, and O. Adachi, Escherichia coli PQQ-containing quinoprotein glucose dehydrogenase its structure comparison with other quinoproteins. Biochim. Biophys. Acta Proteins Proteomics 1647, 185-192 (2003). 

A structural comparison of the calculated (B3LYP/6-311+G ) ts (transition state in the gas phase), ts-wc (transition state in the cluster of five extra water molecules), ts-CPCM (transition state within the CPCM-solvent model (B3LYP(CPCM)/6-311+G )) and ts-PCM (transition state optimized within the PCM-solvent model (B3LYP(PCM)/6-311+G )), shows no large differences (see Fig. 8), which is also valid for the precursor complexes (see Fig. 9). Modeling solvent effects shrinks in all cases the Be-0 bonds of the entering/leaving water molecules (159). 

Liu BB, Zhang F, Feng XX (2006) Thauera and Azoarcus as functionally important genera in a denitrifying quinoline-removal bioreactor as revealed by microbial community structure comparison. FEMS Microbiol Ecol 55 274—286... 

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