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 High affinity choline transporter 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 High affinity choline transporter 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 High affinity choline transporter 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 High affinity choline transporter 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 High affinity choline transporter 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 High affinity choline transporter 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.
High affinity choline transporter 1
partner:
Reaxense
upacc:
Q9GZV3
UPID:
SC5A7_HUMAN
Alternative names:
Hemicholinium-3-sensitive choline transporter; Solute carrier family 5 member 7
Alternative UPACC:
Q9GZV3; Q53TF2
Background:
The High Affinity Choline Transporter 1 (HACHT1), also known as the Hemicholinium-3-sensitive choline transporter and Solute carrier family 5 member 7, is pivotal in acetylcholine synthesis. It functions as an electrogenic, voltage-dependent transporter, facilitating choline uptake into presynaptic nerve terminals, a critical step for acetylcholine production. This process is essential for effective neurotransmission, highlighting the transporter's role in neuronal activity.
Therapeutic significance:
Given its crucial role in acetylcholine synthesis, HACHT1's dysfunction is linked to neuromuscular disorders such as Neuronopathy, distal hereditary motor, 7A, and Myasthenic syndrome, congenital, 20, presynaptic. These associations underscore the potential of targeting HACHT1 in developing treatments for these debilitating conditions, offering hope for affected individuals.
