Structure–activity relationship of pseudoknot-type hammerhead ribozyme reveals key structural elements for enhanced catalytic activity†

2019 ◽  
Vol 39 (1-3) ◽  
pp. 245-257
Author(s):  
Mituhiro Yamada ◽  
Yoshiyuki Tanaka
Keyword(s):  
Catalytic Activity ◽  
Hammerhead Ribozyme ◽  
Structure Activity Relationship ◽  
Activity Relationship ◽  
Structural Elements ◽  
Structure Activity ◽  
Relationship Of

Investigation on the structure–activity relationship of BaO promoting Pd/CeO2–ZrO2 catalysts for CO, HC and NOx conversions

2017 ◽  
Vol 19 (11) ◽  
pp. 7844-7852 ◽  
Author(s):  
Jiansong Lin ◽  
Linyan Yang ◽  
Ting Wang ◽  
Renxian Zhou
Keyword(s):  
Catalytic Activity ◽  
Structure Activity Relationship ◽  
Activity Relationship ◽  
Structure Activity ◽  
Relationship Of

The reasons for the variation in catalytic activity of BaO promoting Pd/CeO2–ZrO2 catalysts prepared via different methods are revealed.

scholarly journals Effects of calcination temperatures on the structure–activity relationship of Ni–La/Al2O3 catalysts for syngas methanation

RSC Advances ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 4166-4174 ◽  
Author(s):  
Hongli Wu ◽  
Meng Zou ◽  
Lisheng Guo ◽  
Fengyun Ma ◽  
Wenlong Mo ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Calcination Temperature ◽  
Structure Activity Relationship ◽  
Activity Relationship ◽  
Calcination Temperatures ◽  
Structure Activity ◽  
Relationship Of

Calcination temperature affects the existing types of NiO, and the influence of the three NiO types on the catalytic activity of samples is bound type ≫ free type > combined type.

scholarly journals The Structure–Function Relationships of Classical Cannabinoids: CB1/CB2 Modulation

2016 ◽  
Vol 8 ◽  
pp. PMC.S32171 ◽  
Author(s):  
Eric W. Bow ◽  
John M. Rimoldi
Keyword(s):  
Cannabis Sativa ◽  
Cannabinoid Receptor ◽  
Structure Activity Relationship ◽  
Activity Relationship ◽  
Binding Modes ◽  
Structural Elements ◽  
Structure Activity ◽  
Simple Class ◽  
Initial Discovery ◽  
Relationship Of

The cannabinoids are members of a deceptively simple class of terpenophenolic secondary metabolites isolated from Cannabis sativa highlighted by (-)-Δ 9 -tetrahydrocannabinol (THC), eliciting distinct pharmacological effects mediated largely by cannabinoid receptor (CB1 or CB2) signaling. Since the initial discovery of THC and related cannabinoids, synthetic and semisynthetic classical cannabinoid analogs have been evaluated to help define receptor binding modes and structure–CB1/CB2 functional activity relationships. This perspective will examine the classical cannabinoids, with particular emphasis on the structure–activity relationship of five regions: C3 side chain, phenolic hydroxyl, aromatic A-ring, pyran B-ring, and cyclohexenyl C-ring. Cumulative structure–activity relationship studies to date have helped define the critical structural elements required for potency and selectivity toward CB1 and CB2 and, more importantly, ushered the discovery and development of contemporary nonclassical cannabinoid modulators with enhanced physicochemical and pharmacological profiles.

Structure-activity relationship of (-) mammea A/BB derivatives against Leishmania amazonensis

Planta Medica ◽  
2008 ◽  
Vol 74 (09) ◽  
Author(s):  
MA Brenzan ◽  
CV Nakamura ◽  
BPD Filho ◽  
T Ueda-Nakamura ◽  
MCM Young ◽  
...  
Keyword(s):  
Structure Activity Relationship ◽  
Leishmania Amazonensis ◽  
Activity Relationship ◽  
Structure Activity ◽  
Relationship Of

Antineoplastic Activity, Structural Modification, Synthesis and Structure-activity Relationship of Dammarane-type Ginsenosides: An Overview

2019 ◽  
Vol 23 (5) ◽  
pp. 503-516 ◽  
Author(s):  
Qiang Zhang ◽  
Xude Wang ◽  
Liyan Lv ◽  
Guangyue Su ◽  
Yuqing Zhao
Keyword(s):  
Structural Modification ◽  
Gastrointestinal Disease ◽  
Structure Activity Relationship ◽  
Cerebrovascular Diseases ◽  
Activity Relationship ◽  
Cycle Arrest ◽  
Structure Activity ◽  
Wide Range ◽  
Structural Association ◽  
Relationship Of

Dammarane-type ginsenosides are a class of tetracyclic triterpenoids with the same dammarane skeleton. These compounds have a wide range of pharmaceutical applications for neoplasms, diabetes mellitus and other metabolic syndromes, hyperlipidemia, cardiovascular and cerebrovascular diseases, aging, neurodegenerative disease, bone disease, liver disease, kidney disease, gastrointestinal disease and other conditions. In order to develop new antineoplastic drugs, it is necessary to improve the bioactivity, solubility and bioavailability, and illuminate the mechanism of action of these compounds. A large number of ginsenosides and their derivatives have been separated from certain herbs or synthesized, and tested in various experiments, such as anti-proliferation, induction of apoptosis, cell cycle arrest and cancer-involved signaling pathways. In this review, we have summarized the progress in structural modification, shed light on the structure-activity relationship (SAR), and offered insights into biosynthesis-structural association. This review is expected to provide a preliminary guide for the modification and synthesis of ginsenosides.

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