POLYPEPTIDE MODELS OF COLLAGEN: SYNTHESIS OF (PRO-PRO-ALA)n AND (PRO-PRO-VAL)n
β Scribed by Rapaka, Rao S. ;Bhatnagar, Rajendra S.
- Book ID
- 115097244
- Publisher
- Wiley (Blackwell Publishing)
- Year
- 2009
- Tongue
- English
- Weight
- 401 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0367-8377
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We have synthesized (Pro-Pro-BAla), as a model for collagen. The synthetic polytripeptide, mol wt 6.500, exhibits a large negative optical rotation with a very strong negative Cotton effect centered a t 216 nm. The optical rotatory dispersion of (Pro-Pro-BAla), followed a single-term Drude equation
Our studies on the solution conformation of (Gly-Pro-Sar), and (Gly-Sar-Pro), synthesized as polypeptide models for collagen are reported. It is found that, while (Gly-Pro-Sar), exists in ordered triple-helical conformation, (Gly-Sar-Pro), remains as a disordered random coil in water. Addition of ce