Related Experiment Video
Updated: Jan 10, 2026

High-Throughput Cellular Profiling of Targeted Protein Degradation Compounds Using HiBiT CRISPR Cell Lines
Published on: November 9, 2020
Targeted protein degradation in the transmembrane and extracellular space
Rongfeng Zhu1, Heng Zhang1, Peng R Chen1,2,3,4
1Institute of Chemical Biology, Shenzhen Bay Laboratory, Shenzhen, China.
None:
Transmembrane and extracellular proteins play crucial roles in diverse cellular functions and communication, affecting the progression and treatment of various diseases by mediating vital cellular processes. Whereas targeted protein degradation (TPD) represents an advancing therapeutic modality that leverages cellular degradation machinery to eliminate proteins of interest, present strategies have been largely confined to intracellular targets. Now, emerging strategies toward transmembrane and extracellular proteins are rapidly expanding the horizon of this powerful technology. Here, we review TPD in the transmembrane and extracellular space (meTPD) and discuss platform technologies, features, applications, and limitations. We focus on the conceptual innovations used in developing the present meTPD technology as well as its potential value for biological research and therapeutic interventions.
Related Concept Videos
The Proteasome
In this pathway, the target proteins are first tagged with small proteins called ubiquitin. A series of enzymes carry out the ubiquitination of the target proteins - E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3...
The Proteasome
In this pathway, the target proteins are first tagged with small proteins called ubiquitin. This involves participation of a series of enzymes including— E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3...
The Proteasome
Regulated Protein Degradation
Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
Regulated Protein Degradation
Translocation of Proteins into the Mitochondria
Sorting of outer membrane proteins:
Mitochondrial outer membrane proteins are of two types: the transmembrane, beta-barrel porins, and the membrane-anchored, alpha-helical proteins. Beta-barrel porin precursors are translocated by the TOM complex and inserted into the outer mitochondrial membrane by the SAM complex. In contrast,...

