RESEARCH: HALOGENASE-PREDICTION
FOLDING PROJECT #19227 PROFILE

Lots of medicines use halogens (like fluorine). Adding these can be tricky. Scientists are using enzymes called halogenases to make it easier and safer. They're also using computer models to predict where halogenases will add these elements, helping them design better medicines.

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 in Group 17 of the periodic table (F, Cl, Br, I).

Halogens are a group of elements found on the periodic table. They are highly reactive and often used in pharmaceuticals due to their ability to influence drug properties.

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Ligand

A molecule that binds to a protein or receptor.

In pharmacology, a ligand is a molecule that attaches to a specific target, like a protein or receptor. This binding can activate or inhibit the target's function, playing a crucial role in drug action.

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Medicinal Chemist

A scientist specializing in the design and synthesis of new drugs.

Medicinal chemists are scientists who focus on developing new medications. They combine their knowledge of chemistry and biology to create molecules that can treat diseases effectively.

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Halogenase

An enzyme that catalyzes the introduction of halogens into organic molecules.

Halogenases are enzymes that add halogen atoms (like chlorine or bromine) to other molecules. They play a role in various biological processes and are being explored for their potential in pharmaceutical synthesis.

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Regioselectivity

The preference of a chemical reaction to occur at a specific position on a molecule.

Regioselectivity refers to the tendency of a chemical reaction to favor forming one product over others when multiple products are possible. It's crucial in controlling the outcome of reactions, especially in drug synthesis.

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Relative Binding Free Energy (RBFE)

A computational method used to predict the binding affinity of molecules.

RBFE is a computational technique used to estimate how strongly a molecule binds to another. This information is valuable in drug discovery for predicting potential interactions between drugs and their targets.