Progress and Challenges in Ocean Metaproteomics and Proposed Best Practices for Data Sharing

Area of Science:

• Marine biology
• Proteomics
• Biogeochemistry

Background:

• Ocean metaproteomics is a growing field that investigates marine microbial communities.
• It offers insights into nutrient transport, carbon fixation, and carbon flux in marine ecosystems.
• Understanding these processes is crucial for global biogeochemical cycles.

Purpose of the Study:

• To review the progress and challenges in ocean metaproteomics.
• To propose best practices for sharing ocean metaproteomic data.
• To foster global capabilities in this field.

Main Methods:

• This review synthesizes current knowledge and identifies limitations in ocean metaproteomics.
• It discusses the impact of biological diversity on mass spectrometry data.
• Challenges in sample acquisition and handling are also addressed.

Main Results:

• Recent studies have illuminated microbial roles in nutrient transport and carbon fixation.
• Metaproteomics provides insights into biofilm metabolism and carbon flux dynamics.
• Future developments may enable tracking long-term ecosystem changes and reaction rates.

Conclusions:

• Standardized data sharing, including necessary data types and metadata, is essential.
• This will enable intercomparisons of protein data and annotations.
• Implementing best practices can significantly advance global ocean metaproteomic capabilities.