13C-nmr chemical shift and conformation of L-alanine residues incorporated into poly(β-benzyl L-aspartate) in the solid state
✍ Scribed by Satoru Tuzi; Tadashi Komoto; Isao Ando; Hazime Saito; Akira Shoji; Takuo Ozaki
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1987
- Tongue
- English
- Weight
- 538 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0006-3525
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## Abstract From the results of ^13^C‐nmr measurement of poly(β‐benzyl‐L‐aspartate) and its model compounds in dimethyl sulphoxide/deuterated chloroform mixtures, it was found that the side chain of poly(β‐benzyl‐L‐aspartate) is solvated by dimethyl sulphoxide in the region more than dimethyl sulph
Analyses of 13C chemical shielding tensors for powder samples of a-helix-rich poly-L-alanine (pALA) and the mechanically stretched b-sheet pALA Ðlms were performed by solid-state two-dimensional spin-echo (2DSE) NMR spectroscopy. From the iterative Ðtting of 2DSE spectra with spectrum simulations, i
The helix-coil transition for poly(P-benzyl-L-aspartate) [poly(Asp[OBzl])] in solvent mixtures of trifluoroacetic acid/deuterated chloroform (F3AcOH/CDC13) was studied by means of proton and carbon-13 nmr. Conformational fixation of the side chain occurs before the coil-helix transition of the backb