Related Experiment Video

Updated: Aug 19, 2026

Imaging of Estrogen Receptor-α in Rat Pial Arterioles using a Digital Immunofluorescent Microscope
07:42

Imaging of Estrogen Receptor-α in Rat Pial Arterioles using a Digital Immunofluorescent Microscope

Published on: November 29, 2011

The kinetics of estrogen binding to rat alpha-fetoprotein

B A Keel, T O Abney

    Experientia
    |May 15, 1984
    PubMed

    More Related Videos

    Detecting the Ligand-binding Domain Dimerization Activity of Estrogen Receptor Alpha Using the Mammalian Two-Hybrid Assay09:07

    Detecting the Ligand-binding Domain Dimerization Activity of Estrogen Receptor Alpha Using the Mammalian Two-Hybrid Assay

    Published on: December 19, 2018

    Screening for Phytoestrogens using a Cell-based Estrogen Receptor β Reporter Assay06:07

    Screening for Phytoestrogens using a Cell-based Estrogen Receptor β Reporter Assay

    Published on: June 7, 2020

    Related Concept Videos

    The Equilibrium Binding Constant and Binding Strength02:18

    The Equilibrium Binding Constant and Binding Strength

    The equilibrium binding constant (Kb) quantifies the strength of a protein-ligand interaction. Kb can be calculated as follows when the reaction is at equilibrium:
    Drug Distribution: Plasma Protein Binding01:29

    Drug Distribution: Plasma Protein Binding

    Drugs predominantly attach to plasma proteins, with only a small percentage remaining unbound. The unbound portion can be calculated as one minus the bound fraction. Acidic drugs form large, inactive complexes by reversibly binding to plasma albumin, which prevents them from diffusing across biological barriers. These drug-protein complexes act as reservoirs for the drugs. As the concentration of unbound drugs decreases, these complexes quickly dissociate to release the free drug, maintaining...
    Transducer Mechanism: Nuclear Receptors01:31

    Transducer Mechanism: Nuclear Receptors

    Nuclear receptors, or NRs, are unique transcription factors that regulate gene transcription and affect the cellular pathways involved in reproduction, development, or metabolism. Their ability to be stimulated by small lipophilic ligands and control vital cellular processes makes them ideal drug targets. Nearly 10-15% of currently prescribed drugs target these receptors.
    About 48 different soluble family members of nuclear receptors are identified that can be divided into two main classes:
    Quantitative Aspects of Drug-Receptor Interaction01:30

    Quantitative Aspects of Drug-Receptor Interaction

    The receptor occupancy theory connects a drug's response to the number of occupied receptors. With higher drug concentrations, more receptors are occupied, leading to increased responses. The formation of drug-receptor complexes involves association and dissociation rates, which reach equilibrium when the forward and backward reactions are equal. The equilibrium association constant (Ka) and its inverse, the equilibrium dissociation constant (Kd), indicate drug affinity. Higher Ka and lower Kd...
    Factors Affecting Protein-Drug Binding: Drug-Related Factors01:18

    Factors Affecting Protein-Drug Binding: Drug-Related Factors

    Drug binding to proteins is a complex phenomenon influenced by various drug-related factors, each playing a significant role in the interaction between drugs and proteins within the body.
    One crucial factor in drug-protein binding is the drug's lipophilicity or its affinity for fat. More lipophilic drugs tend to have higher binding extents. For example, highly lipophilic drugs like cloxacillin exhibit substantial protein binding, with as much as 95% of the drug binding to proteins. In contrast,...
    Factors Affecting Protein-Drug Binding: Protein-Related Factors01:20

    Factors Affecting Protein-Drug Binding: Protein-Related Factors

    Drug binding to proteins is a key aspect of pharmacokinetics and can influence a drug's distribution, absorption, and elimination in the body. Several factors, including the drug's physiochemical properties, protein concentration, disease states, and the number of binding sites on the protein, influence this process.
    The physicochemical properties of a drug play a significant role in its ability to bind to proteins. Lipophilic drugs, which dissolve in fats, oils, and lipids, can be bound by...