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 Inward rectifier potassium channel 16 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 Inward rectifier potassium channel 16 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 Inward rectifier potassium channel 16, 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 Inward rectifier potassium channel 16. 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 Inward rectifier potassium channel 16. 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 Inward rectifier potassium channel 16 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.
Inward rectifier potassium channel 16
partner:
Reaxense
upacc:
Q9NPI9
UPID:
KCJ16_HUMAN
Alternative names:
Inward rectifier K(+) channel Kir5.1; Potassium channel, inwardly rectifying subfamily J member 16
Alternative UPACC:
Q9NPI9
Background:
Inward rectifier potassium channel 16 (KCNJ16), also known as Kir5.1, plays a pivotal role in maintaining potassium ion balance across cell membranes. This channel's unique property of allowing potassium ions to flow more readily into the cell than out underlies its critical function in regulating cell excitability and potassium homeostasis. KCNJ16, alongside KCNJ10, is instrumental in the basolateral recycling of potassium in kidney distal tubules, a process essential for sodium reabsorption and fluid and pH balance.
Therapeutic significance:
KCNJ16's involvement in Hypokalemic tubulopathy and deafness, a disease characterized by renal tubulopathy, hypokalemia, salt wasting, and sensorineural deafness, underscores its therapeutic potential. Targeting KCNJ16 could lead to innovative treatments for this autosomal recessive disorder, offering hope for patients suffering from its debilitating effects.
