The pyridoxal Schiff bases of the polypeptides poly(L-lysine), poly(L-ornithine), and poly(L-a,y-diaminobutyric acid) were prepared and investigated in water/methanol by CD spectra and equilibrium dialysis experiments. Only the poly(L-a,?-diaminobutyric acid) derivative is characterized by a relevan
Conformational analysis of pyridoxal amino acid schiff's bases
✍ Scribed by H. J. R. Weintraub; M.-D. Tsai; S. R. Byrn; C.-J. Chang; H. G. Floss
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 294 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0020-7608
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Structures of Cu(I1) complexes of pyridoxal Schiff bases with poly(L-lysine), poly(L-ornithine), and poly(L-a,?-diaminobutyric acid) were investigated by absorption spectra, CD, and conformational analysis. Although the polypeptides retain their typical right-handed a-helical conformation, opposite
## Abstract The stability of some Schiff‐bases formed between PLP and different amino acids has been investigated in a wide range of pH. The kinetic constants of formation of these compounds and their hydrolysis rate constants have been determined. Results show that the α‐position of the carboxyl g