Small Molecule Structure
Small Molecule Structure - Related Videos
11:58
Using In Vitro and In-cell SHAPE to Investigate Small Molecule Induced Pre-mRNA Structural Changes
0 Views •
2019
Detailed protocols for both in vitro and in-cell selective 2'-hydroxyl acylation analyzed by primer extension (SHAPE) experiments to determine the secondary structure of pre-mRNA sequences of interest in the presence of an RNA-targeting small molecule are presented in this article.
04:50
The Extraction of Liver Glycogen Molecules for Glycogen Structure Determination
0 Views •
Cited by 4 •
2022
An optimal sucrose concentration was determined for the extraction of liver glycogen using sucrose density gradient centrifugation. The addition of a 10 min boiling step to inhibit glycogen-degrading enzymes proved beneficial.
14:43
Microfluidic On-chip Capture-cycloaddition Reaction to Reversibly Immobilize Small Molecules or Multi-component Structures for Biosensor Applications
0 Views •
2013
We present a method for rapid, reversible immobilization of small molecules and functionalized nanoparticle assemblies for Surface Plasmon Resonance (SPR) studies, using sequential on-chip bioorthogonal cycloaddition chemistry and antibody-antigen capture.
12:30
Structural Information from Single-molecule FRET Experiments Using the Fast Nano-positioning System
0 Views •
Cited by 13 •
2017
We present the setup and experimental procedure to obtain smFRET data from large donor-acceptor networks with a TIRF microscope. The step-by-step analysis of these measurements with the Bayesian inference software Fast-NPS yields high-resolved structural information via the application of adapted dye models.
11:24
High Precision FRET at Single-molecule Level for Biomolecule Structure Determination
0 Views •
Cited by 21 •
2017
A protocol for high-precision FRET experiments at the single molecule level is presented here. Additionally, this methodology can be used to identify three conformational states in the ligand-binding domain of the N-methyl-D-aspartate (NMDA) receptor. Determining precise distances is the first step towards building structural models based on FRET experiments.
FAQs
Connectivity determines which atoms are directly linked and which functional groups can participate in chemical reactions. This arrangement constrains the molecule’s reaction possibilities and helps explain its role in a biochemical pathway. Comparing compounds with different connectivities can therefore reveal why related molecules undergo different transformations or produce different biological effects.
Stereochemistry specifies the spatial arrangement of atoms, so two molecules with similar connectivity may interact differently with the same biomolecule. Three-dimensional shape affects how functional groups are presented to enzymes, receptors, or other binding partners. Structural analysis uses these differences to interpret selective binding, biological activity, and changes observed among related compounds.
Charge and polarity influence the types and strengths of noncovalent interactions a compound can form with enzymes, receptors, membranes, and other biomolecules. They also help determine how functional groups are positioned within a molecular interaction. Examining these properties alongside connectivity supports interpretation of binding behavior and biochemical activity.
Conformational flexibility allows a molecule to adopt different three-dimensional arrangements without changing its atomic connectivity. These alternative shapes can alter how functional groups contact a biological partner and may influence binding outcomes. Considering flexibility helps researchers interpret structure-activity relationships, especially when closely related compounds show different interactions or activities.
Researchers examine atomic connectivity, bonds, functional groups, charge, polarity, stereochemistry, and three-dimensional features as complementary structural information. This analysis can help identify possible binding sites, predict molecular properties, and compare related compounds. The resulting structural comparisons provide a basis for interpreting activity patterns and selecting molecules for further study.
Structure-activity relationship analysis compares molecular architecture with observed biological activity to determine which structural features may improve or reduce function. Researchers can evaluate changes in connectivity, stereochemistry, charge, polarity, or flexibility across related compounds. These comparisons guide the interpretation and optimization of metabolites, biochemical probes, and therapeutic candidates.
Structural features help connect a molecule’s chemical reactivity with its possible role in a biochemical pathway. Connectivity can indicate how reactions may proceed, while functional groups and three-dimensional characteristics help explain interactions with pathway-associated biomolecules. This information supports identification and interpretation of metabolites and clarifies how molecular architecture relates to biochemical function.
Structural representation and analysis support several research decisions, including identifying binding sites, predicting molecular properties, and comparing candidate compounds. In biochemistry, these capabilities help researchers design metabolites and probes for studying molecular processes. In drug development, the same principles support optimization of therapeutic candidates by linking structural changes with biological activity.