The objective has been to establish if those ions which are known to change the stability of the struct,ure of proteins, have any influence on the properties of ionizable polypeptides. Potentiometric titrations and complementary optical rotation data are presented for aqueous solutions of poly-L-lys
Helix formation of poly(l-glutamic acid) and poly(l-lysine) in the polyion complex prepared in aqueous alcohol solutions
✍ Scribed by Mitsuru Satoh; Tetsuya Hirose; Jiro Komiyama
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 661 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0032-3861
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## Abstract The rate of conformational change of aqueous poly(α‐L‐lysine) solutions was measured using the electric field pulse relaxation method with conductivity detection. The relaxation time as a function of pH exhibits two maxima. One is assigned to a proton transfer reaction and the other to
## Abstract Poly(__N__^ε^‐acetoacetyl‐L‐lysine), poly(__N__^δ^‐acetoacetyl‐L‐ornithine) and poly(__N__^γ^‐acetoacetyl‐L‐diaminobutyric acid) form colored complexes with ferric ions in water/dioxane solutions. These complexes are soluble at pH values lower than 2.8 and show their maximum absorption