RESEARCH: HALOGENASES
FOLDING PROJECT #19207 PROFILE

Many drugs use halogens (like fluorine). Adding these can be tricky, leading to unwanted byproducts. Scientists are studying enzymes called halogenases that do this naturally. This project uses computer simulations to predict where halogenases will add halogens to different molecules, helping us design better and safer drugs.

Note: This TLDR is a simplication and may not be 100% accurate.

Approximately 40 percent of drugs approved or currently in clinical testing contain halogens (F, Cl, Br, or I) as pharmaceutically active ligand substituents.

This makes the halogenation of chemical scaffolds an issue of particular interest to medicinal chemists when attempting to synthesize potential drug candidates.

Many of the current methods for halogenation are difficult to control the regioselectivity or produce toxic byproducts during the reaction.

Due to these issues; halogenases, a class of enzymes that catalyze highly regioselective halogenation of various molecules in nature, have been studied as a means to improve existing halogenation methods with less toxic byproducts and higher regioselectivity of reaction.

By utilizing Relative Binding Free Energy calculations (RBFE) across a number of common organic molecule scaffolds, our goal is to better predict the probability and site of halogenation for various common chemical scaffolds across a number of halogenases.

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halogens

Elements fluorine (F), chlorine (Cl), bromine (Br), and iodine (I).

Halogens are a group of elements known for their reactivity. They are commonly used in pharmaceuticals due to their ability to influence the properties and activity of drug molecules.

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pharmaceutically active ligand substituents

Parts of a drug molecule that interact with biological targets.

These are specific parts of a drug molecule that bind to and affect biological targets like proteins or receptors. They are crucial for the drug's activity.

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medicinal chemists

Scientists who design and synthesize new drugs.

Medicinal chemists are experts in developing new medications. They use their knowledge of chemistry and biology to create molecules that can treat diseases.

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halogenation

The process of adding a halogen atom to a molecule.

Halogenation involves attaching a halogen element like fluorine, chlorine, or bromine to an organic compound. It's often used in drug development to modify the properties of molecules.

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regioselectivity

The ability of a reaction to preferentially produce one isomer over others.

Regioselectivity refers to how a chemical reaction favors the formation of a specific product based on its location within a molecule. It's important for controlling the outcome of reactions.

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halogenases

Enzymes that catalyze the regioselective halogenation of molecules.

Halogenases are special enzymes that can precisely add halogens to molecules. They are found in nature and have potential applications in drug development.

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Relative Binding Free Energy calculations (RBFE)

A computational method to predict the binding affinity of molecules.

RBFE calculations use computer simulations to estimate how strongly a molecule binds to another. This helps researchers design drugs that effectively target specific proteins.