<p>This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</p> <p>The Proteomics Standards Initiative (PSI) aims to define community standards for data representation in proteomics and to facilitate data comparison, exchange and
verification. Rapid progress has been made in the development of common standards
for data exchange in the fields of both mass spectrometry and protein–protein interactions
since the first PSI meeting [1]. Both hardware and software manufacturers
have agreed to work to ensure that a proteomics-specific extension is created for the
emerging ASTM mass spectrometry standard and the data model for a proteomics
experiment has advanced significantly. The Protein–Protein Interactions (PPI) group
expects to publish the Level 1 PSI data exchange format for protein–protein interactions
by early summer this year, and discussion as to the additional content of Level
2 has been initiated.</p>
[]
Comp Funct Genomics. 2003 Apr; 4(2):203-206