Video Experimental Relacionado

Updated: Jun 21, 2026

Cargo Loading onto Kinesin Powered Molecular Shuttles
09:00

Cargo Loading onto Kinesin Powered Molecular Shuttles

Published on: November 4, 2010

Los reguladores de transporte de auxinas que ocurren naturalmente son reguladores de transporte de auxinas que

M Jacobs, P H Rubery

    Science (New York, N.Y.)
    |July 15, 1988
    PubMed
    Resumen

    Los flavonoides como la quercetina pueden unirse al receptor del ácido naftilftálmico (NPA), inhibiendo el transporte de la auxina polar en las plantas. Estos compuestos pueden funcionar como reguladores naturales del transporte de las auxinas.

    Más Videos Relacionados

    Combining Chemical Cross-linking and Mass Spectrometry of Intact Protein Complexes to Study the Architecture of Multi-subunit Protein Assemblies10:01

    Combining Chemical Cross-linking and Mass Spectrometry of Intact Protein Complexes to Study the Architecture of Multi-subunit Protein Assemblies

    Published on: November 28, 2017

    Myosin-Specific Adaptations of In vitro Fluorescence Microscopy-Based Motility Assays08:57

    Myosin-Specific Adaptations of In vitro Fluorescence Microscopy-Based Motility Assays

    Published on: February 4, 2021

    Videos de Conceptos Relacionados

    Cofactors and Coenzymes01:27

    Cofactors and Coenzymes

    Enzymes require additional components for proper function. There are two such classes of molecules: cofactors and coenzymes. Cofactors are metallic ions and coenzymes are non-protein organic molecules. Both of these types of helper molecule can be tightly bound to the enzyme or bound only when the substrate binds.
    Cofactors and Coenzymes01:27

    Cofactors and Coenzymes

    Enzymes require additional components for proper function. There are two such classes of molecules: cofactors and coenzymes. Cofactors are metallic ions and coenzymes are non-protein organic molecules. Both of these types of helper molecule can be tightly bound to the enzyme or bound only when the substrate binds.
    Regulation of Metabolism01:19

    Regulation of Metabolism

    Cellular needs and conditions vary from cell to cell and change within individual cells over time. For example, the required enzymes and energetic demands of stomach cells are different from those of fat storage cells, skin cells, blood cells, and nerve cells. Furthermore, a digestive cell works much harder to process and break down nutrients during the time that closely follows a meal compared with many hours after a meal. As these cellular demands and conditions vary, so do the amounts and...
    Introduction to Mechanisms of Enzyme Catalysis01:13

    Introduction to Mechanisms of Enzyme Catalysis

    For many years, scientists thought that enzyme-substrate binding took place in a simple "lock-and-key" fashion. This model stated that the enzyme and substrate fit together perfectly in one instantaneous step. However, current research supports a more refined view scientists call induced fit. The induced-fit model expands upon the lock-and-key model by describing a more dynamic interaction between enzyme and substrate. As the enzyme and substrate come together, their interaction causes a mild...
    Cofactors and Coenzymes01:24

    Cofactors and Coenzymes

    Enzymes are proteins made of amino acids. The functional group of each constituent amino acid catalyzes a wide variety of chemical reactions via ionic interactions or acid-base reactions. However, amino acids cannot catalyze oxidation-reduction and group transfer reactions and need to be aided by non-protein components called cofactors. Cofactors are also referred to as the chemical teeth of an enzyme.
    Cofactors can be metallic ions or organic molecules called coenzymes. These types of helper...
    Active Transport01:14

    Active Transport

    Active transport is a critical biological process that allows cells to move solutes against an electrochemical gradient. This process requires direct energy input and is characterized by its selectivity, saturability, and susceptibility to competitive inhibition.
    Primary active transporters, like Na+, K+ and -ATPase, directly utilize ATP to move ions across the membrane. These transporters play significant roles in various physiological processes. For instance, Na+, K+ and -ATPase maintain...