Synthesis, biological activity and molecular modelling of the 53-54 ketomethylene analogue of HEL(52-61)

Autor: Ettouati, L., Casimir, J. R., Raynaud, I., Trescol-Biemont, M. C., Carrupt, Pierre-Alain, Gerlier, D., Rabourdin-Combe, C., Testa, Bernard, Paris, J.
Jazyk: angličtina
Rok vydání: 1998
Předmět:
Zdroj: Protein and Peptide Letters, Vol. 5, No 4 (1998) pp. 221-229
ISSN: 0929-8665
Popis: The synthesis of the 53-54 ketomethylene isostere of HEL(52-61), an antigenic decapeptide, was realised by convergent Fmoc solid-phase peptide synthesis. In addition to the target peptide, an unexpected hydroxysuccinyl by-product was recovered. The two ketomethylene epimers did not exhibit any stimulating or competitive activity. Molecular modelling studies of the analogues-MHC-II I-A(k) complex suggested a departure from the canonical polyproline II conformation which could account for the absence of binding to I-A(k) molecule
Databáze: OpenAIRE