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 RISC-loading complex subunit TARBP2 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 RISC-loading complex subunit TARBP2 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 RISC-loading complex subunit TARBP2, 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 RISC-loading complex subunit TARBP2. 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 RISC-loading complex subunit TARBP2. 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 RISC-loading complex subunit TARBP2 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.
RISC-loading complex subunit TARBP2
partner:
Reaxense
upacc:
Q15633
UPID:
TRBP2_HUMAN
Alternative names:
TAR RNA-binding protein 2; Trans-activation-responsive RNA-binding protein
Alternative UPACC:
Q15633; Q12878; Q8WY32; Q8WY33; Q9BRY2
Background:
RISC-loading complex subunit TARBP2, also known as TAR RNA-binding protein 2, plays a crucial role in RNA silencing. It is a key component of the RISC loading complex, essential for processing precursor miRNAs to mature miRNAs and their subsequent loading onto AGO2. This process is vital for the formation of the minimal RISC, which is instrumental in gene silencing. Additionally, TARBP2 binds to HIV-1 TAR RNA, stimulating translation of TAR-containing RNAs and mediating immune evasion by promoting 2'-O-methylation of the viral genome.
Therapeutic significance:
Understanding the role of RISC-loading complex subunit TARBP2 could open doors to potential therapeutic strategies.
