High Fidelity Kinetic Self-Sorting in Multi-Component Systems Based on Guests with Multiple Binding Epitopes
摘要:
The molecular recognition platforms of natural systems often possess multiple binding epitopes, each of which has programmed functional consequences. We report the dynamic behavior of a system comprising CB[6], CB[7], and guests cyclohexanediammonium (1) and adamantanealkylammonium (2) that we refer to as a two-faced guest because it contains two distinct binding epitopes. We find that the presence of the two-faced guests-just as is observed for protein targeting in vivo-dictates the kinetic pathway that the system follows toward equilibrium. The influence of two-faced guest structure, cation concentration, cation identity, and individual rate and equilibrium constants on the behavior of the system was explored by a combination of experiment and simulation. Deconstruction of this system led to the discovery of an anomalous host-guest complex (CB[6]center dot 1) whose dissociation rate constant (k(out) = 8.5 x 10(-10) s(-1)) is approximate to 100-fold slower than the widely used avidin, biotin affinity pair. This result, in combination with the analysis of previous systems which uncovered extraordinarily tight binding events (K-a >= 10(12) M-1), highlights the inherent potential of pursuing a systems approach toward supramolecular chemistry.
High Fidelity Kinetic Self-Sorting in Multi-Component Systems Based on Guests with Multiple Binding Epitopes
摘要:
The molecular recognition platforms of natural systems often possess multiple binding epitopes, each of which has programmed functional consequences. We report the dynamic behavior of a system comprising CB[6], CB[7], and guests cyclohexanediammonium (1) and adamantanealkylammonium (2) that we refer to as a two-faced guest because it contains two distinct binding epitopes. We find that the presence of the two-faced guests-just as is observed for protein targeting in vivo-dictates the kinetic pathway that the system follows toward equilibrium. The influence of two-faced guest structure, cation concentration, cation identity, and individual rate and equilibrium constants on the behavior of the system was explored by a combination of experiment and simulation. Deconstruction of this system led to the discovery of an anomalous host-guest complex (CB[6]center dot 1) whose dissociation rate constant (k(out) = 8.5 x 10(-10) s(-1)) is approximate to 100-fold slower than the widely used avidin, biotin affinity pair. This result, in combination with the analysis of previous systems which uncovered extraordinarily tight binding events (K-a >= 10(12) M-1), highlights the inherent potential of pursuing a systems approach toward supramolecular chemistry.
申请人:National Institute of Biological Sciences, Beijing
公开号:US11034680B2
公开(公告)日:2021-06-15
The invention provides compounds that are inhibitors or covalent modifiers of succinate dehydrogenase subunit B (SDHB) and/or inhibitors of apoptosis, and pharmaceutically acceptable salts, hydrates and stereoisomers thereof. The compounds are employed in pharmaceutical compositions, and methods of making and use, including treating a person in need thereof with an effective amount of the compound or composition.
本发明提供了琥珀酸脱氢酶亚基 B (SDHB) 的抑制剂或共价修饰剂和/或细胞凋亡抑制剂的化合物及其药学上可接受的盐、水合物和立体异构体。这些化合物可用于药物组合物以及制造和使用方法中,包括用有效量的化合物或组合物治疗有需要的人。
Antiviral agents. 2. Structure-activity relations of compounds related to 1-adamantanamine
作者:Paul E. Aldrich、Edward C. Hermann、Walter E. Meier、Marvin Paulshock、William W. Prichard、Jack Austin Synder、John C. Watts
DOI:10.1021/jm00288a019
日期:1971.6
Apoptosis Inhibitors
申请人:National Institute of Biological Sciences, Beijing
公开号:US20190152960A1
公开(公告)日:2019-05-23
The invention provides compounds that are inhibitors or covalent modifiers of succinate dehydrogenase subunit B (SDHB) and/or inhibitors of apoptosis, and pharmaceutically acceptable salts, hydrates and stereoisomers thereof. The compounds are employed in pharmaceutical compositions, and methods of making and use, including treating a person in need thereof with an effective amount of the compound or composition.
High Fidelity Kinetic Self-Sorting in Multi-Component Systems Based on Guests with Multiple Binding Epitopes
作者:Pritam Mukhopadhyay、Peter Y. Zavalij、Lyle Isaacs
DOI:10.1021/ja063390j
日期:2006.11.1
The molecular recognition platforms of natural systems often possess multiple binding epitopes, each of which has programmed functional consequences. We report the dynamic behavior of a system comprising CB[6], CB[7], and guests cyclohexanediammonium (1) and adamantanealkylammonium (2) that we refer to as a two-faced guest because it contains two distinct binding epitopes. We find that the presence of the two-faced guests-just as is observed for protein targeting in vivo-dictates the kinetic pathway that the system follows toward equilibrium. The influence of two-faced guest structure, cation concentration, cation identity, and individual rate and equilibrium constants on the behavior of the system was explored by a combination of experiment and simulation. Deconstruction of this system led to the discovery of an anomalous host-guest complex (CB[6]center dot 1) whose dissociation rate constant (k(out) = 8.5 x 10(-10) s(-1)) is approximate to 100-fold slower than the widely used avidin, biotin affinity pair. This result, in combination with the analysis of previous systems which uncovered extraordinarily tight binding events (K-a >= 10(12) M-1), highlights the inherent potential of pursuing a systems approach toward supramolecular chemistry.