AI-ACCELERATED DRUG DISCOVERY

CTP synthase 1

Explore its Potential with AI-Driven Innovation
Predicted by Alphafold

CTP synthase 1 - Focused Library Design

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 CTP synthase 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 CTP synthase 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 CTP synthase 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 CTP synthase 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 CTP synthase 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 CTP synthase 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.

CTP synthase 1

partner:

Reaxense

upacc:

P17812

UPID:

PYRG1_HUMAN

Alternative names:

CTP synthetase 1; UTP--ammonia ligase 1

Alternative UPACC:

P17812; B4DR64; D3DPW1; Q5VW67; Q96GK6

Background:

CTP synthase 1, also known as CTP synthetase 1 or UTP--ammonia ligase 1, plays a pivotal role in the de novo synthesis of CTP, a vital precursor for DNA, RNA, and phospholipids. This enzyme catalyzes the ATP-dependent transformation of UTP to CTP using L-glutamine or ammonia as a nitrogen source, essential for the proliferation of activated lymphocytes and, consequently, immunity.

Therapeutic significance:

The enzyme's malfunction is directly linked to Immunodeficiency 24, a severe condition marked by an impaired adaptive immunity, leading to chronic viral and bacterial infections. The disease stems from a specific genetic mutation affecting CTP synthase 1, highlighting its critical role in immune response and presenting a targeted opportunity for therapeutic intervention.

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