AI-ACCELERATED DRUG DISCOVERY
Available from Reaxense
This protein is integrated into the Receptor.AI ecosystem as a prospective target with high therapeutic potential. We performed a comprehensive characterization of U6 snRNA phosphodiesterase 1 including:
1. LLM-powered literature research
Our custom-tailored LLM extracted and formalized all relevant information about the protein from a large set of structured and unstructured data sources and stored it in the form of a Knowledge Graph. This comprehensive analysis allowed us to gain insight into U6 snRNA phosphodiesterase 1 therapeutic significance, existing small molecule ligands, relevant off-targets, and protein-protein interactions.
Fig. 1. Preliminary target research workflow
2. AI-Driven Conformational Ensemble Generation
Starting from the initial protein structure, we employed advanced AI algorithms to predict alternative functional states of U6 snRNA phosphodiesterase 1, including large-scale conformational changes along "soft" collective coordinates. Through molecular simulations with AI-enhanced sampling and trajectory clustering, we explored the broad conformational space of the protein and identified its representative structures. Utilizing diffusion-based AI models and active learning AutoML, we generated a statistically robust ensemble of equilibrium protein conformations that capture the receptor's full dynamic behavior, providing a robust foundation for accurate structure-based drug design.
Fig. 2. AI-powered molecular dynamics simulations workflow
3. Binding pockets identification and characterization
We employed the AI-based pocket prediction module to discover orthosteric, allosteric, hidden, and cryptic binding pockets on the protein’s surface. Our technique integrates the LLM-driven literature search and structure-aware ensemble-based pocket detection algorithm that utilizes previously established protein dynamics. Tentative pockets are then subject to AI scoring and ranking with simultaneous detection of false positives. In the final step, the AI model assesses the druggability of each pocket enabling a comprehensive selection of the most promising pockets for further targeting.
Fig. 3. AI-based binding pocket detection workflow
4. AI-Powered Virtual Screening
Our ecosystem is equipped to perform AI-driven virtual screening on U6 snRNA phosphodiesterase 1. With access to a vast chemical space and cutting-edge AI docking algorithms, we can rapidly and reliably predict the most promising, novel, diverse, potent, and safe small molecule ligands of U6 snRNA phosphodiesterase 1. This approach allows us to achieve an excellent hit rate and to identify compounds ready for advanced lead discovery and optimization.
Fig. 4. The screening workflow of Receptor.AI
Receptor.AI, in partnership with Reaxense, developed a next-generation technology for on-demand focused library design to enable extensive target exploration.
The focused library for U6 snRNA phosphodiesterase 1 includes a list of the most effective modulators, each annotated with 38 ADME-Tox and 32 physicochemical and drug-likeness parameters. Furthermore, each compound is shown with its optimal docking poses, affinity scores, and activity scores, offering a detailed summary.
U6 snRNA phosphodiesterase 1
partner:
Reaxense
upacc:
Q9BQ65
UPID:
USB1_HUMAN
Alternative names:
3'-5' RNA exonuclease USB1; Mutated in poikiloderma with neutropenia protein 1
Alternative UPACC:
Q9BQ65; B4DWE3; B4DZW5; Q96FZ9; Q9H8X8
Background:
U6 snRNA phosphodiesterase 1, also known as 3'-5' RNA exonuclease USB1, plays a crucial role in RNA processing. It trims the 3' end of oligo(U) and oligo(A) tracts of pre-U6 small nuclear RNA (snRNA), leading to mature U6 snRNA formation. This protein is essential for U6 snRNA 3' end processing, preventing its degradation and ensuring the stability of RNA molecules involved in critical cellular functions.
Therapeutic significance:
Given its pivotal role in RNA processing and stability, U6 snRNA phosphodiesterase 1 is linked to Poikiloderma with neutropenia, a genodermatosis characterized by skin abnormalities and increased susceptibility to infections. Understanding the role of U6 snRNA phosphodiesterase 1 could open doors to potential therapeutic strategies for treating this disorder and possibly other RNA-related diseases.
