As a leading CRO, BOC Sciences is dedicated to expanding innovative degradation mechanisms and targets. Besides the most studied ubiquitination-proteasome system, we explore another important protein degradation system in eukaryotic cells, the lysosomal degradation system. LYTAC (lysosome-targeting chimera) is a degradation technology that utilizes lysosomes. We can offer LYTAC development service to provide new research tools for targeted drug discovery.

Lysosomal degradation pathway has a wide range of applicability, including but not limited to proteins, protein multimers, organelles, etc. Lysosome-targeting chimera (LYTAC) is a protein degradation technology using endosomal-lysosomal system. Similar to the structure of PROTAC, LYTAC is a bifunctional molecule consisting of two binding ligands, one of which is an oligosaccharide structure targeting the lysosome-targeting receptors (LTRs) on the cell surface, and the other could be an antibody, peptide or small molecule targeting the protein of interest (POI), which are chemical conjugated by a linker.

Mechanism of action of LYTAC
First, the POI ligand of LYTAC binds to the extracellular domain of the POI, while the oligosaccharide structure binds to the LTRs on the cell surface, forming the LTRs-LYTAC-POI ternary complex; Sequentially, the complex enters the cell via clathrin mediated endocytosis (CME), and passes sequentially through the vesicles to the early endosome (EE) and late endosome (LE); With endosome acidification, the LTRs in the ternary complex dissociates and returns to the cell membrane or Golgi apparatus, and the binding of LYTAC and the target protein is continued to be transported to the lysosome for degradation.

LYTAC Design
LYTAC is designed to be bound to POI at one end and recognized by LTR at the other end. Three choices of POI-binding ligands are available, including antibodies, peptides and small molecules. LTR-binding ligands include PolyM6Pn and Tri-GalNAc, which target the mannose-6-phosphate receptor (CI-M6PR) and the asialoglycoprotein receptor (ASGPR), members of the LTR family, respectively.

Our Services for LYTAC Technology Development
Design and synthesis of complex LTR-binding ligands.
Screening, design, synthesis or production of POI-binding ligands based on different targets.
Screening of compounds with high affinity for target proteins from compound databases by virtual screening technique.
Chemical modifications to improve the properties of drug molecules.
Chemical and biochemical analysis services covering every stage of preclinical drug development.

Our Advantages
Advanced LYTAC degradation technology
Streamlined synthesis routes
Quality one-stop service
Short turn-around time and competitive price
Data analysis, detailed report with results and discussion
Highly reliable and reproducible result
Experienced experts team and extensive expertise