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 Glutamate decarboxylase 1 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 Glutamate decarboxylase 1 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 Glutamate decarboxylase 1, 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 Glutamate decarboxylase 1. 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 Glutamate decarboxylase 1. 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 Glutamate decarboxylase 1 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.
Glutamate decarboxylase 1
partner:
Reaxense
upacc:
Q99259
UPID:
DCE1_HUMAN
Alternative names:
67 kDa glutamic acid decarboxylase; Glutamate decarboxylase 67 kDa isoform
Alternative UPACC:
Q99259; Q49AK1; Q53TQ7; Q9BU91; Q9UHH4
Background:
Glutamate decarboxylase 1 (GAD1), also known as the 67 kDa glutamic acid decarboxylase or Glutamate decarboxylase 67 kDa isoform, plays a pivotal role in the central nervous system. It catalyzes the synthesis of gamma-aminobutyric acid (GABA), an inhibitory neurotransmitter, utilizing pyridoxal 5'-phosphate as a cofactor. Despite its enzymatic inactivity as glutamate decarboxylase, GAD1's contribution to neurotransmission and neural regulation is significant.
Therapeutic significance:
GAD1's association with Developmental and epileptic encephalopathy 89 (DEE89), a severe form of epileptic encephalopathy, underscores its therapeutic significance. DEE89 is characterized by profound developmental delays, absent speech, inability to sit or walk, and early-onset seizures. Understanding the role of GAD1 could open doors to potential therapeutic strategies for managing DEE89 and related neurological disorders.
