Acyltransferase Enzyme Macrolactin Solubility Modification
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Solution Overview
Problem
Current studies on Macrolactins, a class of drug lead compounds with great application potential, lack effective modification strategies to enhance their pharmacological activity, bioavailability, and reduce toxicity and side effects.
Innovation Solution
An acyltransferase enzyme with specific amino acid modifications is developed, capable of acylating Macrolactins through acylation reactions, improving their water solubility and efficacy, and a recombinant vector is used to express this enzyme in a host cell for application with various acyl donors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If Macrolactins are used as drug lead compounds, then they exhibit good antibacterial activities and pharmacological effects, but they have poor water solubility and limited bioavailability
Solution Approach 1:
The patent applies chemical modification by changing the molecular parameters of Macrolactins through acylation reactions. By introducing acyl groups at specific positions (C-3, C-5, C-7, C-9, C-11, C-13, C-15, C-17, C-19, C-21, or C-23 hydroxyl groups), the drug's solubility parameters are improved while maintaining its pharmacological activity, thus resolving the contradiction between reliability and ease of manufacture.
2Reliability
If Macrolactins are administered at higher doses to enhance efficacy, then pharmacological activity increases, but toxic side effects increase
Solution Approach 1:
The patent applies local quality modification by selectively acylating specific hydroxyl groups on the Macrolactin molecule rather than modifying the entire structure. This localized modification at specific positions (C-3, C-5, C-7, C-9, C-11, C-13, C-15, C-17, C-19, C-21, or C-23) enhances solubility and reduces toxicity while preserving the core pharmacological activity, thus resolving the contradiction between efficacy and harmful factors.
3Ease of manufacture
If traditional acylation reactions are used to modify Macrolactins, then hydroxyl and amino groups can be protected, but the reaction conditions are complex and require multiple steps
Solution Approach 1:
The patent applies universality by developing acylation reaction conditions that can simultaneously protect hydroxyl groups and introduce acyl groups for solubility enhancement in a single reaction step. The method uses acyl-CoA derivatives as reagents that can modify multiple positions on the Macrolactin molecule, consolidating multiple protection and modification steps into one universal process, thus resolving the contradiction between ease of manufacture and device complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The acyltransferase enzyme enhances the bioavailability and efficacy of Macrolactins by improving their solubility and reducing toxicity and side effects, providing a new strategy for drug development.
Implementation Method 1
an acyltransferase, comprising: a) a protease having a sequence identical to a SEQ ID NO:1; b) a protease obtained by deleting, substituting, inserting or adding one or several amino acids to the protease in a), which has an acyltransferase activity of the protease in a)
Implementation Method 2
The acyltransferase enzyme enhances the bioavailability and efficacy of Macrolactins by improving their solubility and reducing toxicity and side effects through acylation reactions
Data Source
AI summary
An enzyme with an acyl transfer function has an amino acid sequence identical to a SEQ ID NO:1, which is capable of acylation modification for macrolactins, filipins macrolides, chloramphenicol, and glycosylated piericidin A. An application of an acyltransferase of the present invention is to bind an acyl group of an acyl donor to macrolide compounds, chloramphenicol and glycosylated piericidins. The enzyme with the acyl transfer function can improve pharmacological activity of the macrolide compounds through acylation reaction of macrolactins, thereby improving bioavailability, enhancing efficacy, and reducing toxic as well as side effects, which provides a new strategy for the drug development of macrolide compounds.