Remote Binding Energy in Antibody Catalysis: Studies of a Catalytically Unoptimized Specificity Pocket
作者:Herschel Wade、Thomas S. Scanlan
DOI:10.1021/ja983017e
日期:1999.2.1
Binding interactions remote from the hydrolytic reaction center have been probed with substrate and phosphonate transition state analogues to understand how these types of interactions are used to promote catalysis in the 17E8 system, We find that the hapten-generated recogniton pocket in 17E8 has properties that are analogous to those of specificity pockets in enzymes, pie have also found that there are specific requirements to form catalytically productive interactions between the side chain and the recognition pocket including conformation, size, and geometry. An additional requirement includes Favorable simultaneous interactions between the side chain and binding packet along with favorable interactions with the oxyanion hole. The 17E8 side chain recognition pocket seems to be less catalytically efficient than analogous pockets in enzymatic systems. The apparent binding energy gained from the methylene-packet interactions in the 17E8 system is significantly smaller than those observed in natural enzymes. Furthermore, 17E8 does not use specific interactions in the recognition pocket to significantly affect catalytic turnover (k(cat)) which is thought to be a trait of an unoptimized catalyst. Analysis of the crystal structure of the 17E8,hapten complex has allowed for the identification of differences between the active sites of 17E8; and several proteases, The identified differences give insight to the sources of the inefficient use of binding energy.
Abderhalden; Schweitzer, Fermentforschung, 1931, vol. 12, p. 241
作者:Abderhalden、Schweitzer
DOI:——
日期:——
Abderhalden; Kuerten, Fermentforschung, vol. 4, p. 330
作者:Abderhalden、Kuerten
DOI:——
日期:——
MAGNUS, PHILIP;SLATER, MARTIN, TETRAHEDRON LETT., 28,(1987) N 25, 2829-2832
作者:MAGNUS, PHILIP、SLATER, MARTIN
DOI:——
日期:——
SELF-ASSEMBLED MICRO-AND NANOSTRUCTURES
申请人:NORTHWESTERN UNIVERSITY
公开号:US20160115196A1
公开(公告)日:2016-04-28
The present invention discloses self-assembled bioadhesive anti-microbial, anti-fouling and/or anti-oxidant micro- and nano-structures comprising a plurality of amino acids or peptides, wherein each amino acid is an aromatic amino acid comprising a catecholic moiety, and/or each peptide comprises at least one aromatic amino acid comprising a catecholic moiety. Further disclosed are methods and kits for preparing these micro- and nano-structures. Further disclosed are uses of these micro- and nano-structures in pharmaceutical, cosmetic and medical devices applications.