Related Experiment Video
Updated: Jul 11, 2026
10:44
Mass Spectrometry and Luminogenic-based Approaches to Characterize Phase I Metabolic Competency of In Vitro Cell Cultures
Published on: March 28, 2017
Function and engineering of the 15beta-hydroxylase CYP106A2.
1Naturwissenschaftlich-Technische Fakultät III, Institut für Biochemie, Universität des Saarlandes, Postfach 151150, 66041 Saarbrücken, Germany.
Biochemical Society Transactions
|November 1, 2006
Summary
Bacillus megaterium
Area of Science:
- Biochemistry
- Molecular Biology
- Biotechnology
Background:
- CYP106A2 is a bacterial cytochrome P450 from Bacillus megaterium.
- It efficiently transforms steroid hormones and can be expressed in Escherichia coli.
- In vitro activity requires adrenal redox proteins adrenodoxin and adrenodoxin reductase.
Purpose of the Study:
- To provide an overview of recent protein engineering developments for CYP106A2.
- To highlight the potential of CYP106A2 in biotechnological applications.
- To address the need for improved hydroxylation activity and regiospecificity.
Main Methods:
- Review of recent protein engineering strategies applied to CYP106A2.
- Analysis of CYP106A2's substrate specificity and catalytic activity.
- Discussion of challenges in CYP106A2 crystallization and protein stability.
Main Results:
- CYP106A2 hydroxylates pharmaceutically relevant steroids like progesterone and 11-deoxycortisol.
- Protein engineering efforts aim to enhance hydroxylation and control regiospecificity.
- Despite crystallization difficulties, CYP106A2 shows significant biotechnological promise.
Conclusions:
- CYP106A2 is a valuable enzyme for steroid hormone transformation.
- Further protein engineering is crucial for optimizing its biotechnological applications.
- Enhancing activity and regiospecificity will unlock efficient industrial use.
More Related Videos
09:33Formation of Covalent DNA Adducts by Enzymatically Activated Carcinogens and Drugs In Vitro and Their Determination by 32P-postlabeling
Published on: March 20, 2018
08:02Benchtop Immobilized Metal Affinity Chromatography, Reconstitution and Assay of a Polyhistidine Tagged Metalloenzyme for the Undergraduate Laboratory
Published on: August 23, 2018
Related Concept Videos
01:16Drug Biotransformation: Overview
Pharmaceutical substances known as xenobiotics are predominantly lipophilic and nonionized. This enables them to permeate lipid bilayers, such as cell membranes, and interact with intracellular target receptors. Lipophilic drugs have an advantage in crossing biological barriers and reaching their intended sites of action. However, lipophilic drugs often have a restricted capacity for renal expulsion or elimination from the body. When these drugs enter the kidneys and undergo glomerular...
01:17Drug Metabolism: Phase I Reactions
A phase I reaction is a biochemical process that introduces a functionally reactive polar group to a substance. This transformation predominantly occurs in the liver, facilitated by the cytochrome P450 system of hemoproteins situated in the lipophilic endoplasmic reticulum of cells. The metabolite generated through this process can have varying polarities. If it is sufficiently polar, it can be easily excreted in the urine due to its water compatibility. However, if the metabolite is nonpolar,...
01:28Drug Biotransformation: Overview
Biotransformation, also known as drug metabolism, is a vital physiological process that chemically alters drugs, facilitating their elimination from the body and terminating their action. This process involves two main phases: phase I and phase II reactions. Phase I reactions, including oxidation, reduction, and hydrolysis, introduce or unmask polar functional groups on the drug molecule, thereby increasing its water solubility. By enhancing water solubility, the drug becomes more hydrophilic...
01:19Phase I Reactions: Oxidation of Aliphatic and Aromatic Carbon-Containing Systems
Phase I biotransformation reactions are integral to drug metabolism, predominantly involving oxidative, reductive, and hydrolytic transformations. Chief among these are oxidative reactions, which enhance the hydrophilicity of xenobiotics and introduce polar functional groups to facilitate their elimination from the body.
Oxidation reactions are fundamental in aromatic carbon-containing systems. An example is the hydroxylation of phenobarbital, a process that transforms it into...
Oxidation reactions are fundamental in aromatic carbon-containing systems. An example is the hydroxylation of phenobarbital, a process that transforms it into...
01:27Pharmacogenetics of Drug Metabolism: Overview
Genetic polymorphism in drug metabolism is crucial to the inter-individual variability observed in drug responses. Drug metabolism primarily involves the chemical modification of drugs and other xenobiotics to enhance their elimination by increasing their polarity. Two main classes of enzymes mediate this biotransformation process: Phase I enzymes, primarily cytochrome P450s, catalyze oxidation and reduction reactions, while other enzymes, such as esterases, mediate hydrolysis, and Phase II...
01:28Pharmacogenetics of Phase I Enzymes: Cytochrome P450 Isozymes
Cytochrome P450 (CYP450) enzymes are a superfamily of heme-containing monooxygenases that play a pivotal role in Phase I drug metabolism by catalyzing oxidation and reduction reactions.These enzymes transform lipophilic xenobiotics into more hydrophilic metabolites, facilitating subsequent Phase II conjugation and eventual excretion. The CYP450 family is classified into families (e.g., CYP1–CYP3) and subfamilies (e.g., CYP2A, CYP2C), based on amino acid sequence homology.CYP450 isoenzymes,...