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 Caspase recruitment domain-containing protein 9 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 Caspase recruitment domain-containing protein 9 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 Caspase recruitment domain-containing protein 9, 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 Caspase recruitment domain-containing protein 9. 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 Caspase recruitment domain-containing protein 9. 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 Caspase recruitment domain-containing protein 9 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.
Caspase recruitment domain-containing protein 9
partner:
Reaxense
upacc:
Q9H257
UPID:
CARD9_HUMAN
Alternative names:
-
Alternative UPACC:
Q9H257; Q5SXM5; Q5SXM6; Q9H854
Background:
Caspase recruitment domain-containing protein 9 (CARD9) is a pivotal adapter protein that orchestrates innate immune responses against fungal pathogens. It facilitates signaling complexes downstream of C-type lectin receptors, crucial for antifungal immunity, especially against Ascomycota fungi. CARD9's activation leads to the recruitment of BCL10 and MALT1, triggering NF-kappa-B and MAP kinase pathways, which are instrumental in the expression of pro-inflammatory cytokines and chemokines.
Therapeutic significance:
CARD9's role in immunodeficiency 103, characterized by susceptibility to fungal infections, underscores its therapeutic potential. The protein's involvement in immune responses and fungal clearance, particularly Candida albicans, highlights the possibility of targeting CARD9 pathways for innovative treatments against fungal infections and related immunodeficiencies.
