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 Phosphorylase b kinase gamma catalytic chain, liver/testis isoform 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 Phosphorylase b kinase gamma catalytic chain, liver/testis isoform 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 Phosphorylase b kinase gamma catalytic chain, liver/testis isoform, 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 Phosphorylase b kinase gamma catalytic chain, liver/testis isoform. 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 Phosphorylase b kinase gamma catalytic chain, liver/testis isoform. 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 Phosphorylase b kinase gamma catalytic chain, liver/testis isoform 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.
Phosphorylase b kinase gamma catalytic chain, liver/testis isoform
partner:
Reaxense
upacc:
P15735
UPID:
PHKG2_HUMAN
Alternative names:
PSK-C3; Phosphorylase kinase subunit gamma-2
Alternative UPACC:
P15735; A8K0C7; B4DEB7; E9PEU3; P11800
Background:
The Phosphorylase b kinase gamma catalytic chain, liver/testis isoform, known as PSK-C3 or Phosphorylase kinase subunit gamma-2, plays a pivotal role in glycogen metabolism. It acts as the catalytic subunit of the phosphorylase b kinase (PHK), crucial for the neural and hormonal regulation of glycogen breakdown through the phosphorylation and activation of glycogen phosphorylase. This process is essential for energy release in cells.
Therapeutic significance:
Glycogen storage disease 9C, a metabolic disorder linked to mutations in the gene encoding this protein, highlights its clinical importance. The disease manifests with hepatomegaly, growth retardation, and liver dysfunction, among other symptoms. Understanding the role of Phosphorylase b kinase gamma catalytic chain could open doors to potential therapeutic strategies for managing this condition and possibly other glycogen storage diseases.
