Enantioselective binding sites on bovine serum albumin to dansyl amino acids

Autor: Yuki Koshiji, Shikie Fukui, Hideyuki Nishizawa, Tomoko Shoji, Yoshihiro Abe, Kazunori Iwata, Michi Kobayashi, Setsuro Sugata, Hiroshi Suzuki
Rok vydání: 1999
Předmět:
Zdroj: Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology. 1433:188-197
ISSN: 0167-4838
DOI: 10.1016/s0167-4838(99)00135-1
Popis: The enantioselective binding sites on bovine serum albumin were examined by HPLC using 19 racemic 5-N, N-dimethylamino-1-naphthalenesulfonyl derivatives of alpha-amino acids (dansyl amino acids) as chiral probes. On a bovine serum albumin bonded chiral stationary phase, seven L-forms eluted faster than their D-forms, while ten D-forms eluted before their L-forms. It was speculated that either two classes or two different binding sites exist on bovine serum albumin which can be distinguished by N-dansyl-L-proline and N-dansyl-D-norvaline. This was confirmed by fluorometric experiments where non-fluorescent 1-naphthalenesulfonyl derivatives were synthesized and competitive adsorption experiments were performed.
Databáze: OpenAIRE