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 Proteasome assembly chaperone 2 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 Proteasome assembly chaperone 2 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 Proteasome assembly chaperone 2, 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 Proteasome assembly chaperone 2. 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 Proteasome assembly chaperone 2. 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 Proteasome assembly chaperone 2 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.
Proteasome assembly chaperone 2
partner:
Reaxense
upacc:
Q969U7
UPID:
PSMG2_HUMAN
Alternative names:
Hepatocellular carcinoma-susceptibility protein 3; Tumor necrosis factor superfamily member 5-induced protein 1
Alternative UPACC:
Q969U7; B0YJB3; Q6IAH4; Q9NRV1; V9GYH7
Background:
Proteasome assembly chaperone 2 (PAC2), also known as Hepatocellular carcinoma-susceptibility protein 3 and Tumor necrosis factor superfamily member 5-induced protein 1, plays a pivotal role in cellular function by promoting the assembly of the 20S proteasome. This process is crucial for protein degradation and turnover, which is essential for maintaining cellular homeostasis. PAC2, in a heterodimer with PSMG1, binds to proteasome subunits PSMA5 and PSMA7, facilitating the assembly of the proteasome alpha subunits into the alpha ring and preventing its dimerization.
Therapeutic significance:
PAC2's involvement in Proteasome-associated autoinflammatory syndrome 4, a disorder characterized by panniculitis, erythematous skin lesions, and various systemic symptoms, underscores its therapeutic significance. Understanding the role of PAC2 could open doors to potential therapeutic strategies for this autoinflammatory disorder and related conditions.
