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 Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit STT3B 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 Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit STT3B 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 Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit STT3B, 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 Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit STT3B. 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 Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit STT3B. 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 Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit STT3B 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.
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit STT3B
partner:
Reaxense
upacc:
Q8TCJ2
UPID:
STT3B_HUMAN
Alternative names:
Source of immunodominant MHC-associated peptides homolog
Alternative UPACC:
Q8TCJ2; Q96JZ4; Q96KY7
Background:
Dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit STT3B plays a pivotal role in protein N-glycosylation, a process critical for protein folding and stability. It acts as the catalytic subunit within the oligosaccharyl transferase complex, facilitating the transfer of glycan chains to nascent proteins, essential for their proper function and localization. Its activity is crucial in both co- and post-translational modifications, impacting a wide array of biological processes.
Therapeutic significance:
Given its central role in glycoprotein biosynthesis, STT3B's dysfunction is linked to Congenital disorder of glycosylation 1X, manifesting in severe developmental and systemic anomalies. Understanding the role of STT3B could open doors to potential therapeutic strategies, offering hope for targeted interventions in glycosylation disorders and enhancing our approach to precision medicine.
