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Structure-based Inhibitor Design

Creative Enzymes offers professional and comprehensive services in structure-based inhibitor design, tailored to accelerate enzyme-related research and drug discovery. By integrating advanced computational simulations with deep expertise in enzymology, we provide cost-effective, reliable, and flexible solutions. Our team of scientists, with decades of accumulated experience, ensures that every project is executed with the highest quality standards, helping our clients achieve meaningful breakthroughs in research and development.

Background: Structure-Based Inhibitor Design–A Paradigm Shift for Inhibitors Screening

Inhibitors play a central role in modern drug discovery and therapeutic development. Traditional screening methods often rely on large-scale, trial-and-error approaches that are time-consuming and resource-intensive. Structure-based inhibitor design (SBID) represents a paradigm shift: it leverages the three-dimensional structure of enzymes to rationally predict, design, and optimize molecules with inhibitory activity.

Diagram showing key stages and example of structure-based inhibitor designFigure 1. (Left) Simplified workflow of structure-based inhibitor design. (Right) An example of enzyme-inhibitor complex: Trypanothione reductase with the lower molecule of an inhibitor bound irreversibly and the upper one reversibly.

Fundamental Principles and Methodological Foundations

SBID operates on the fundamental principle that inhibitor efficacy depends on precise complementary interactions with the target enzyme's binding site. The process typically involves:

  • Target selection and validation based on therapeutic relevance and structural feasibility
  • High-resolution structure determination using X-ray crystallography, cryo-electron microscopy, or NMR spectroscopy
  • Analysis of binding site characteristics including topology, electrostatic potential, and hydration patterns
  • Identification of key interaction hotspots and conserved molecular recognition motifs

Structure-Based Inhibitor Design Services & Capabilities

Our structure-based inhibitor design services are designed to address the growing demand for efficient and accurate inhibitor discovery. With our in-house database built from experimental data, combined with powerful computational tools, we provide comprehensive support for every stage of the design process.

We offer:

  • Inhibitor design and optimization based on target structures
  • Virtual screening of inhibitor libraries to identify high-potential candidates
  • Experimental activity measurement to validate computational predictions
  • Customized technical support tailored to specific research needs

Whether you require complete end-to-end inhibitor design or targeted assistance with a particular step, Creative Enzymes is equipped to deliver results of the highest scientific rigor.

Structure-Based Inhibitor Design Workflow

Creative Enzymes workflow for structure-based inhibitor design

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End-to-End Services: Four Key Stages

Service Features Price
Technical and Computational Support for Structure-Based Inhibitor Design Our technical and computational support service lays the groundwork for every inhibitor design project. We provide expert assistance in structural modeling, molecular dynamics simulations, docking setup, and virtual screening system development. Get a quote
Rational Structure-Based Inhibitor Design At this stage, we apply rational design principles to generate and optimize potential inhibitor molecules. Using knowledge of the enzyme's 3D structure and catalytic mechanism, we identify and design compounds with strong binding affinity and selectivity toward the target site.
Structure-Based Screening of Inhibitor Candidates After design and modeling, we conduct virtual and experimental screening to identify the most promising inhibitor candidates. Our advanced computational screening pipeline efficiently filters large chemical libraries, focusing resources on compounds most likely to succeed in vitro.
Activity Measurement of Inhibitors in Structure-Based Design The final validation step involves experimental measurement of inhibitor activity against the target enzyme. Our enzymologists employ a range of biochemical assays to determine inhibition kinetics, binding constants, and selectivity profiles.

Why Partner with Creative Enzymes

Extensive Expertise

Decades of experience in enzymology and computational biology ensure scientifically sound results.

Proprietary Database

An in-house collection of experimental data enhances the accuracy of homology models and simulations.

Cost and Time Efficiency

Rational design reduces the need for trial-and-error experiments, accelerating timelines while lowering costs.

Comprehensive Services

From modeling to experimental validation, we provide complete solutions under one roof.

Customization

Each project is tailored to client-specific goals, whether for pharmaceutical research, industrial applications, or academic studies.

Proven Track Record

Our services are endorsed by scientists worldwide, attesting to our reliability and impact on successful discoveries.

Case Studies and Real-World Applications

Case 1: Structure-Based Inhibitor Design for Reshaping Bacterial Morphology

The spiral morphology of Campylobacter jejuni is essential for its ability to invade intestinal epithelial cells, making it a key factor in infection. Targeting this shape-regulating mechanism offers a novel therapeutic strategy. Researchers identified peptidoglycan hydrolase 3 (Pgp3) as a crucial enzyme in maintaining the bacterium's helical form and designed hydroxamate-based inhibitors against it. Structural and biochemical analyses confirmed these inhibitors bind to the Pgp3 active site, altering bacterial morphology from helical to rod-shaped. This morphological change significantly reduces the pathogen's invasiveness, providing proof of concept that disrupting cell shape can effectively interfere with C. jejuni infection.

Pgp3 inhibitor design using structure-based methods to alter bacterial morphologyFigure 2. Structure-based design of Pgp3 inhibitors. (a) Schematic of peptidoglycan structure and Pgp3 domain architecture; cleavage sites are marked with scissors. (b) Electrostatic surface of Pgp3 bound to tetra-tripeptide (green) and pentapeptide (orange) (PDB: 6JN0, 6JN1), with key motifs circled and substrate pockets (S1', S1, S2) in lime. (c) Structure of truncated pentapeptide (mDAP3-D-Ala4-D-Ala5) highlighting Y–Y, hydrophobic, Zn-binding, and linker motifs. (d) Chemical structures of synthesized inhibitors BMK-S101, S201, and S301, designed to retain or enhance these motifs and modify rigidity for improved binding. (Choi et al., 2022)

Case 2: Structure-Based Strategy for METTL3 Inhibitor Discovery

Methyltransferase-like 3 (METTL3) and METTL14 form a heterodimer that installs the N6-methyladenosine (m6A) modification on mRNA, regulating key processes such as splicing, export, translation, and decay. METTL3 provides catalytic activity via S-adenosyl methionine (SAM) binding, while METTL14 mediates RNA recognition. Given METTL3's oncogenic role in acute myeloid leukemia, structural and dynamic analyses of its catalytic domain were used to design small-molecule inhibitors targeting the SAM-binding site. Guided by crystallography and molecular dynamics simulations, optimization from an initial docking hit enhanced inhibitory potency by 8000-fold, yielding a selective compound with minimal activity against METTL1 and METTL16.

METTL3 inhibitor design via structure-based drug discovery approachFigure 3. Structure-guided design of selective inhibitors targeting METTL3 and their effects on METTL3 enzymatic activity. (Bedi et al., 2023)

FAQs About Our Structure-Based Inhibitor Design Services

  • Q: What are the advantages of structure-based inhibitor design compared to traditional methods?

    A: Structure-based approaches reduce cost and time, increase accuracy, and improve the likelihood of identifying effective inhibitors. Unlike random screening, the process is rational and technology-driven, making it more efficient and reproducible.
  • Q: Can structure-based inhibitor design be applied if my target enzyme structure is unknown?

    A: Yes. By using homology modeling and our proprietary experimental database, we can construct reliable models even when the complete enzyme structure has not been experimentally determined.
  • Q: How do you ensure the reliability of computational predictions?

    A: We use state-of-the-art computational tools, rigorous validation steps, and experimental assays to confirm predicted activities. This integrated approach minimizes false positives and strengthens confidence in results.
  • Q: How much experimental work is included in the service?

    A: We provide full experimental validation, including enzymatic activity assays to measure inhibition kinetics, IC50 values, and selectivity profiles. Depending on the client's request, we can also extend the service to kinetic modeling or mechanism-of-inhibition studies.
  • Q: Can the workflow be customized to my specific project?

    A: Absolutely. Every project is designed around your research goals, available data, and budget. Whether you need only virtual screening, activity validation, or a complete inhibitor design pipeline, we tailor our workflow accordingly.
  • Q: What types of enzymes or targets can you handle?

    A: We have extensive experience with a wide variety of enzymes, including oxidoreductases, transferases, hydrolases, lyases, isomerases, and ligases. Our flexible modeling tools allow us to handle both soluble and membrane-bound enzymes across diverse biological systems.
  • Q: Can you work with proprietary compounds or inhibitor libraries provided by clients?

    A: Yes. We regularly collaborate with clients who supply proprietary chemical libraries or lead structures. Our screening and optimization tools are fully compatible with custom datasets, and all client materials are treated with the highest confidentiality standards.
  • Q: What types of clients can benefit from this service?

    A: Our services cater to pharmaceutical companies, biotechnology firms, academic institutions, and industrial research groups working on enzyme-related applications.

References:

  1. Bedi RK, Huang D, Li Y, Caflisch A. Structure-based design of inhibitors of the m6A-RNA writer enzyme METTL3. ACS Bio Med Chem Au. 2023;3(4):359-370. doi:10.1021/acsbiomedchemau.3c00023
  2. Choi Y, Park JS, Kim J, et al. Structure-based inhibitor design for reshaping bacterial morphology. Commun Biol. 2022;5(1):395. doi:10.1038/s42003-022-03355-3

For research and industrial use only, not for personal medicinal use.

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For research and industrial use only, not for personal medicinal use.