PCPE2: Expression of multifunctional extracellular glycoprotein associated with diverse cellular functions

Area of Science:

• Biochemistry
• Molecular Biology
• Extracellular Matrix Biology

Background:

• Procollagen C-endopeptidase enhancer 2 (PCPE2) is an extracellular glycoprotein structurally similar to PCPE1.
• PCPE1 enhances procollagen processing by activating BMP-1.
• PCPE2 exhibits a distinct tissue expression profile compared to PCPE1, suggesting unique functions.

Purpose of the Study:

• To review the current literature on PCPE2, focusing on its associations with cell types and signaling pathways.
• To highlight structural and functional similarities and differences between PCPE2 and PCPE1.
• To explore the broader biological roles of PCPE2 beyond procollagen processing.

Main Methods:

• Literature review of studies citing PCPE2.
• Analysis of RNA sequencing data to identify differentially regulated genes (DEGs).
• Comparison of PCPE2's expression profile with PCPE1.

Main Results:

• PCPE2 is associated with specific cell types and signaling pathways.
• PCPE2 demonstrates significant differences in tissue expression compared to PCPE1.
• RNA sequencing consistently identifies PCPE2 as a DEG linked to numerous cellular processes.

Conclusions:

• PCPE2 possesses biological functions extending beyond procollagen fibril processing.
• The distinct expression profile and DEG status of PCPE2 indicate a significant, yet understudied, role in cellular functions.
• Further research into PCPE2 is warranted to elucidate its diverse biological contributions.