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 Endothelial PAS domain-containing protein 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 Endothelial PAS domain-containing protein 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 Endothelial PAS domain-containing protein 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 Endothelial PAS domain-containing protein 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 Endothelial PAS domain-containing protein 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 Endothelial PAS domain-containing protein 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.
Endothelial PAS domain-containing protein 1
partner:
Reaxense
upacc:
Q99814
UPID:
EPAS1_HUMAN
Alternative names:
Basic-helix-loop-helix-PAS protein MOP2; Class E basic helix-loop-helix protein 73; HIF-1-alpha-like factor; Hypoxia-inducible factor 2-alpha; Member of PAS protein 2; PAS domain-containing protein 2
Alternative UPACC:
Q99814; Q86VA2; Q99630
Background:
Endothelial PAS domain-containing protein 1, known as Hypoxia-inducible factor 2-alpha, plays a pivotal role in oxygen regulation within cells. It activates genes under low oxygen conditions, including those involved in vascular endothelial growth factor (VEGF) expression, crucial for blood vessel and lung tubular system development. It also contributes to the formation of the blood-brain barrier and activates the Tie-2 tyrosine kinase expression, essential for endothelial cell function.
Therapeutic significance:
The protein's involvement in Erythrocytosis, familial, 4, a disorder characterized by elevated serum hemoglobin and hematocrit, highlights its potential as a therapeutic target. Understanding the role of Endothelial PAS domain-containing protein 1 could open doors to potential therapeutic strategies for blood-related disorders and diseases involving vascular and lung abnormalities.
