Design, synthesis, and kinetic evaluation of high-affinity FKBP ligands and the X-ray crystal structures of their complexes with FKBP12
摘要:
The design and synthesis of high-affinity FKBP12 ligands is described. These compounds potently inhibit the cis-trans-peptidylprolyl isomerase (rotamase) activity catalyzed by FKBP12 with inhibition constants (K(i,app)) as low as 1 nM, yet they possess remarkable structural simplicity relative to FK506 and rapamycin, from which they are conceptually derived. The atomic structures of three FKBP12-ligand complexes and of one unbound ligand were determined by X-ray crystallography and are compared to the FKBP12-FK506 and FKBP12-rapamycin complexes.
Design, synthesis, and kinetic evaluation of high-affinity FKBP ligands and the X-ray crystal structures of their complexes with FKBP12
摘要:
The design and synthesis of high-affinity FKBP12 ligands is described. These compounds potently inhibit the cis-trans-peptidylprolyl isomerase (rotamase) activity catalyzed by FKBP12 with inhibition constants (K(i,app)) as low as 1 nM, yet they possess remarkable structural simplicity relative to FK506 and rapamycin, from which they are conceptually derived. The atomic structures of three FKBP12-ligand complexes and of one unbound ligand were determined by X-ray crystallography and are compared to the FKBP12-FK506 and FKBP12-rapamycin complexes.
Diaminocyclopentadienone Ruthenium Complex Catalyzed Alkylation of Indoles and Ketones with Primary Alcohols
作者:Steffen Skowaisa、Edgar Haak
DOI:10.1002/ejoc.202300707
日期:——
The borrowing hydrogen approach allows the direct utilization of non-activated alcohols as alkylating agents. A readily available, air and moisture stable ruthenium complex proves to be a particularly effective hydrogen autotransfer catalyst for the alkylation of various indoles or ketones with poorly reactive alcohols.
[EN] CYCLOSPORIN A CONJUGATES AND USES THEREFOR<br/>[FR] CONJUGUES DE CYCLOSPORINE A ET UTILISATIONS
申请人:WISCONSIN ALUMNI RESEARCH FOUNDATION
公开号:WO1999010374A1
公开(公告)日:1999-03-04
(EN) Disclosed are conjugates of A$g(b)-binding peptides and CsA analogs and conjugates of A$g(b)-binding peptides and FK506 Binding Peptide inhibitors. These conjugates chemically induce dimerization of either cyclophilin or FK506 Binding Peptide with A$g(b) peptide, a major component of amyloid plaques found in neurological disorders such as Alzheimer's disease, multiple sclerosis, and amyotrophic lateral sclerosis. The conjugates are useful in the treatment of neurological diseases involving the formation of amyloid plaques because they inhibit and/or prevent the aggregation and deposition of A$g(b) peptide into plaques.(FR) Cette invention a trait à des conjugués fragment de peptide A$g(b) de fixation - analogues de cyclosporine A (CsA) et à des conjugués fragment de peptide A$g(b) de fixation inhibiteurs de peptides fixés au macrolide FK506. Ces conjugués induisent par la voie chimique une dimérisation soit de la cyclophiline, soit du peptide fixé au macrolide FK506, avec le peptide A$g(b), un composant essentiel de plaques amyloïdes présentes en cas de troubles neurologiques tels que la maladie d'Alzheimer, la sclérose en plaques et la sclérose latérale amyotrophique. Ces conjugués sont utilisés pour traiter des troubles neurologiques impliquant la formation de plaques amyloïdes car ils inhibent et/ou empêchent l'agrégation et le dépôt de peptides A$g(b) sous forme de plaques.
Design, synthesis, and kinetic evaluation of high-affinity FKBP ligands and the X-ray crystal structures of their complexes with FKBP12
作者:Dennis A. Holt、Juan I. Luengo、Dennis S. Yamashita、Hye Ja Oh、Arda L. Konialian、Hwa Kwo Yen、Leonard W. Rozamus、Martin Brandt、Mary J. Bossard、Mark A. Levy、Drake S. Eggleston、Jun Liang、L. Wayne Schultz、Thomas J. Stout、Jon Clardy
DOI:10.1021/ja00075a008
日期:1993.11.1
The design and synthesis of high-affinity FKBP12 ligands is described. These compounds potently inhibit the cis-trans-peptidylprolyl isomerase (rotamase) activity catalyzed by FKBP12 with inhibition constants (K(i,app)) as low as 1 nM, yet they possess remarkable structural simplicity relative to FK506 and rapamycin, from which they are conceptually derived. The atomic structures of three FKBP12-ligand complexes and of one unbound ligand were determined by X-ray crystallography and are compared to the FKBP12-FK506 and FKBP12-rapamycin complexes.