Alanine oligomers provide a key structure for silk fibers from spider and wild silkworms.We report on structural analysis of l-alanyl-l-alanyl-l-alanyl-l-alanine (Ala)4 with anti-parallel (AP) β-structures using X-ray and solid-state NMR. All of the Ala residues in the (Ala)4 are in...
for the same purpose.NMR chemical shifts appear to have promise in both structure prediction and structure refinement.Therefore a number of studies have been accomplished in the past few years trying to discover the relation between protein structure and chemical shifts of different nuclei [1],[2]...
Plants usually produce defence metabolites in non-active forms to minimize the risk of harm to themselves and spatiotemporally activate these defence metabolites upon pathogen attack. This so-called two-component system plays a decisive role in the chemical defence of various plants. Here, we discove...
Analytical Studies of Constituents of Antlers , . Ca , Na K Hg , Mn Fe . docosahexaenoic acid 43.73% , . 17 , glycine , alanine proline . collagen , ... Hun,Ha,Soo-Hong,... - 《Journal of the Korean Society of Food & Nutrition》 被引量: 5发表: 1996年 Effects of different for...
This work deals with the chemical composition, physical structure, and thermal behavior of Antheraea assama silk fibers. The amino acid composition is characterized by the high content of alanine, glycine, and serine. Among the amino acid residues with polar side chains, aspartic acid, arginine, ...
et al. The 1.9 A crystal structure of alanine racemase from Mycobacterium tuberculosis contains a conserved entryway into the active site. Biochemistry 44, 1471–1481 (2005). Article CAS PubMed Google Scholar Prosser, G. A. & de Carvalho, L. P. Metabolomics reveal d-alanine:d-alanine ...
Crystal structure of a DNA Holliday junction The structure has two-fold symmetry, with pairwise stacking of the double-helical arms, which form two continuous B-DNA helices that run antiparallel, cross in a right-handed way, and contain two G-A mismatches. The exchanging ... M Ortiz-Lombard...
Chemical composition and structure of the cell walls of the conchocelis and thallus phases of Porphyra tenera (Rhodophyceae)[J].PHYCOLOGIA 1981,17.Mukai LS, Craigie JS, Brown RG (1981) Chemical compo- sition and structure of the cell walls of the conchocelis and thallus phases of Porphyra...
The tip section, which is the growth center of the antler, had highest proportions of tyrosine and isoleucine and lowest proportions of glycine and alanine. The C18:3 omega 6 fatty acid was found in the tip section only. 展开 关键词:...
Carbon-13 NMR chemical shift and electronic structure of solid polypeptides as studied by tight-binding MO theory. polyglycine and poly(L-alanine). Bull. Chem. Soc. Japan 58, 23 (1985). Article CAS Google Scholar Yamanobe, T., Ando, I., Saitô, H., Tabeta, R., Shoji, A. & ...