関連する実験動画

Updated: Jan 2, 2026

Protein Film Infrared Electrochemistry Demonstrated for Study of H2 Oxidation by a [NiFe] Hydrogenase
10:01

Protein Film Infrared Electrochemistry Demonstrated for Study of H2 Oxidation by a [NiFe] Hydrogenase

Published on: December 4, 2017

12.6K

非ヘム鉄酵素によって触媒化され,非本来の小分子リガンドによって強化された窒素移転

Nathaniel W Goldberg, Anders M Knight, Ruijie K Zhang

    Journal of the American Chemical Society
    |December 3, 2019
    PubMed
    まとめ

    Pseudomonas savastanoiのエチレン形成酵素である非ヘム鉄酵素は,オレフィンアジリディネーションとC-H挿入を触媒化する. 誘導的進化はこれらの触媒的活動を強化し,小さな分子が酵素の選択性を制御した.

    さらに関連する動画

    Catalytic Reactions at Amine-Stabilized and Ligand-Free Platinum Nanoparticles Supported on Titania During Hydrogenation of Alkenes and Aldehydes12:08

    Catalytic Reactions at Amine-Stabilized and Ligand-Free Platinum Nanoparticles Supported on Titania During Hydrogenation of Alkenes and Aldehydes

    Published on: June 24, 2022

    4.0K
    EPR Monitored Redox Titration of the Cofactors of Saccharomyces cerevisiae Nar106:01

    EPR Monitored Redox Titration of the Cofactors of Saccharomyces cerevisiae Nar1

    Published on: November 26, 2014

    13.8K

    関連する概念動画

    Metal-Ligand Bonds02:51

    Metal-Ligand Bonds

    The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
    In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
    23.6K
    Inorganic Nitrogen Assimilation01:22

    Inorganic Nitrogen Assimilation

    Nitrogen is an essential element in biological systems, forming a crucial component of proteins, nucleic acids, and other cellular constituents. Many bacteria and archaea acquire nitrogen in the form of nitrate (NO₃⁻) or ammonia (NH₃), which are then assimilated into biomolecules through specific enzymatic pathways.Assimilatory Nitrate ReductionWhen nitrate enters the cell, it undergoes a two-step reduction process known as assimilatory nitrate reduction. Initially, the enzyme...
    403
    Catalysis02:50

    Catalysis

    The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.
    30.0K
    Metabolism of Chemolithotrophs01:15

    Metabolism of Chemolithotrophs

    Chemolithotrophs are microorganisms that obtain energy by oxidizing inorganic molecules such as hydrogen gas (H₂), ammonia (NH₃), reduced sulfur compounds (H₂S, S²⁻), and ferrous iron (Fe²⁺). Unlike heterotrophic organisms that rely on organic carbon, chemolithotrophs transfer electrons from these inorganic donors to the electron transport chain (ETC), generating a proton motive force (PMF) that drives ATP synthesis through oxidative phosphorylation.
    681
    Reduction of Alkenes: Asymmetric Catalytic Hydrogenation02:17

    Reduction of Alkenes: Asymmetric Catalytic Hydrogenation

    Catalytic hydrogenation of alkenes is a transition-metal catalyzed reduction of the double bond using molecular hydrogen to give alkanes. The mode of hydrogen addition follows syn stereochemistry.
    The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
    3.8K
    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...
    10.3K