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 Ubiquitin-conjugating enzyme E2 D3 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 Ubiquitin-conjugating enzyme E2 D3 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 Ubiquitin-conjugating enzyme E2 D3, 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 Ubiquitin-conjugating enzyme E2 D3. 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 Ubiquitin-conjugating enzyme E2 D3. 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 Ubiquitin-conjugating enzyme E2 D3 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.
Ubiquitin-conjugating enzyme E2 D3
partner:
Reaxense
upacc:
P61077
UPID:
UB2D3_HUMAN
Alternative names:
(E3-independent) E2 ubiquitin-conjugating enzyme D3; E2 ubiquitin-conjugating enzyme D3; Ubiquitin carrier protein D3; Ubiquitin-conjugating enzyme E2(17)KB 3; Ubiquitin-conjugating enzyme E2-17 kDa 3; Ubiquitin-protein ligase D3
Alternative UPACC:
P61077; A6NJ93; A6NJB1; A6NM99; P47986; Q6IB88; Q6NXS4; Q8N924
Background:
Ubiquitin-conjugating enzyme E2 D3, known as UBE2D3, plays a pivotal role in protein ubiquitination, a critical post-translational modification process. It accepts ubiquitin from the E1 complex and catalyzes its covalent attachment to target proteins, facilitating diverse cellular processes such as DNA repair, protein degradation, and signal transduction. UBE2D3 is involved in 'Lys-11'- and 'Lys-48'-linked polyubiquitination, cooperating with various E3 ligases to ubiquitinate key proteins like NFKBIA, PCNA, and p53/TP53, thereby influencing cellular responses to DNA damage, cell cycle regulation, and tumor suppression.
Therapeutic significance:
Understanding the role of Ubiquitin-conjugating enzyme E2 D3 could open doors to potential therapeutic strategies.
