DOT1L Probe Compounds for High-Throughput Screening
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods lack effective probes for assessing the activity of DOT1L and identifying its inhibitors, which is crucial for understanding its role in normal cell differentiation and leukemia initiation.
Innovation Solution
Development of probe compounds that bind to DOT1L with high affinity, adaptable for various assays such as ALPHA, DFS, and FP, enabling high-throughput screening and target identification, with the ability to attach fluorescence reagents and affinity tags for tuning specificity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If no specific probes are used for DOT1L detection, then general screening methods can be applied, but the ability to effectively assess DOT1L activity and identify its inhibitors is lost
Solution Approach 1:
The probe compounds are designed with a core structure that can bind to DOT1L while allowing attachment of various detectable labels (fluorescence tags, biotin, etc.) at different positions. This universal design enables the same core probe to function across multiple assay types including ALPHA, DFS, and FP assays, as well as for both activity assessment and inhibitor identification
Solution Approach 2:
The probe structure incorporates specific functional groups at defined positions (R1-R8 substituents on the core structure) that can be independently modified to optimize binding affinity for DOT1L while maintaining compatibility with different detectable labels. This local optimization allows tuning of probe properties without affecting the overall binding mechanism
2Ease of manufacture
If probes with fixed structure are used, then manufacturing is simplified, but the ability to tune affinity for different purposes is reduced
Solution Approach 1:
The probe is divided into a core binding structure and modular substituent groups (R1-R8) that can be independently synthesized and then coupled together. This segmentation allows the core structure to be manufactured once and reused, while only the variable substituents need to be changed for different applications, combining manufacturing efficiency with affinity tuning capability
Solution Approach 2:
The probe design allows systematic variation of substituent parameters (R1-R8 groups) to optimize binding affinity and selectivity for DOT1L. By changing these parameters, the same core probe structure can be adapted for different experimental conditions and applications while maintaining a consistent manufacturing platform
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
These probes effectively assess DOT1L activity and identify inhibitors, facilitating drug discovery and providing insights into leukemia mechanisms, as demonstrated by successful assays showing reasonable binding affinity and suitability for high-throughput screening.
Implementation Method 1
The compounds bind DOT1L with high affinity
Implementation Method 2
various fluorescence reagents can be attached to a variety of positions
Implementation Method 3
Amplified Luminescent Proximity Homogeneous Assays (ALPHA) assays
Data Source
AI summary
The present invention relates to compound that bind Histone H3-lysine79 (H3K79) methyl transferase (DOTIL). The disclosed compounds are useful as for assessing the activity of DOTIL and for identifying inhibitors of DOTIL. Described herein are probes useful for both assessing the activity of DOTIL and identifying inhibitors of DOTIL. These probes can be used in various assays, including Amplified Luminescent Proximity Homogeneous Assays (“ALPHA” assays), Differential Scanning Fluorimetry (DFS) Assay, and Fluorescence Polarization (FP) assays used for high-throughput screening (HTS) for small molecule drug discovery. The compounds can also be used as a pull down agent for target identification.