RTK_RAG: Leveraging Retrieval Augmented Generation with Multi-Window Convolutional Neural Networks for Superior ATP

Sin-Siang Wei1, Wei-En Jhang1, Yu-Chen Liu1

  • 1Department of Computer Science and Engineering, Yuan Ze University, Chung-Li 32003, Taiwan.

Insights

We developed RTK_RAG, a novel framework using retrieval-augmented generation (RAG) and protein language models (PLMs) to accurately predict ATP binding sites in receptor tyrosine kinases (RTKs). This tool aids cancer research and targeted therapy development.

Area of Science:

  • Biochemistry and Molecular Biology
  • Computational Biology
  • Cancer Research

Background:

  • Receptor tyrosine kinases (RTKs) are crucial for cell signaling and implicated in cancer.
  • Accurate identification of ATP binding sites is essential for understanding RTK function and developing targeted therapies.
  • Existing general ATP binding site predictors struggle with the structural diversity of RTKs.

Purpose of the Study:

  • To develop an advanced computational framework, RTK_RAG, for improved prediction of ATP binding sites specifically in RTKs.
  • To address the limitations of general prediction methods in capturing RTK-specific structural variations.
  • To provide a reliable tool for RTK research and kinase inhibitor development.

Main Methods:

  • Integration of retrieval-augmented generation (RAG) with protein language models (PLMs).
  • Utilization of a multi-window convolutional neural network (MCNN) architecture.
  • Validation on an independent RTK dataset using multiple evaluation metrics.

Main Results:

  • RTK_RAG demonstrated superior performance compared to general ATP binding site predictors on RTKs.
  • The framework effectively accounts for RTK-specific structural features, enhancing prediction accuracy.
  • Achieved improved performance across multiple evaluation metrics on an independent RTK dataset.

Conclusions:

  • RTK_RAG offers a reliable tool for studying RTK function and advancing the development of novel kinase inhibitors.
  • The RAG-based approach shows promise for improving functional predictions in specialized protein families.
  • This study presents a generalizable strategy for enhancing binding site identification across diverse protein families.

Related Concept Videos

Conserved Binding Sites01:49

Conserved Binding Sites

Many proteins’ biological role depends on their interactions with their ligands, small molecules that bind to specific locations on the protein known as ligand-binding sites. Ligand-binding sites are often conserved among homologous proteins as these sites are critical for protein function.
Binding sites are often located in large pockets, and if their location on a protein’s surface is unknown, it can be predicted using various approaches. The energetic method computationally...
4.4K
Receptor Tyrosine Kinases01:26

Receptor Tyrosine Kinases

Receptor tyrosine kinases or RTKs are membrane-bound receptors that phosphorylate specific tyrosine on protein substrates. RTKs regulate cellular growth, differentiation, survival, and migration. They contain an extracellular ligand binding domain, a transmembrane domain, and a cytosolic tail with intrinsic kinase activity. Several extracellular signaling molecules activate RTKs in one or more ways and relay the signal downstream. Ligands such as platelet-derived growth factor (PDGF) or...
14.4K
Enzyme-linked Receptors01:00

Enzyme-linked Receptors

Enzyme-linked receptors are proteins that act as both receptor and enzyme, activating multiple intracellular signals. This is a large group of receptors that include the receptor tyrosine kinase (RTK) family. Many growth factors and hormones bind to and activate the RTKs.
Neurotrophin (NT) receptors are a family of RTKs, including trkA, trkB, and trkC (tropomyosin-related kinase) receptors. TrkA is specific for nerve growth factor (NGF), neurotrophin-6, and neurotrophin-7. TrkB binds...
80.1K
G Protein-coupled Receptors01:15

G Protein-coupled Receptors

G Protein-Coupled Receptors or GPCRs are membrane-bound receptors that transiently associate with heterotrimeric G proteins and induce an appropriate response to sensory stimuli such as light, odors, hormones, cytokines, or neurotransmitters.
GPCRs are also called heptahelical, 7TM, or serpentine receptors, and consist of seven (H1-H7) transmembrane alpha-helices that span the bilayer to form a cylindrical core. The transmembrane helices are connected by three extracellular loops and three...
13.6K
Ligand Binding Sites02:40

Ligand Binding Sites

Proteins are dynamic macromolecules that carry out a wide variety of essential processes; however, the activities of most proteins depend on their interactions with other molecules or ions, known as ligands.
Protein-ligand interactions are quite specific; even though numerous potential ligands surround a cellular protein at any given time, only a particular ligand can bind to that protein. Moreover, a ligand binds only to a dedicated area on the surface of the protein, known as the...
13.5K
Transducer Mechanism: Enzyme-Linked Receptors01:27

Transducer Mechanism: Enzyme-Linked Receptors

Enzyme-linked receptors are cell-surface receptors acting as an enzyme or associating with an enzyme intracellularly. They make excellent drug targets. Drugs can bind to the extracellular ligand-binding domain or directly affect their enzymatic domain and alter their activity.
Major types that are helpful drug targets include:
2.8K