Proteomics(1) is an emerging area of research of the post-genomic era
that deals with the global analysis of gene expression using a plethor
a of techniques to resolve (high resolution two-dimensional polyacryla
mide gel electrophoresis, 2D PAGE), identify (peptide sequencing by Ed
man degradation, mass spectrometry, Western immunoblotting, etc.), qua
ntitate and characterize proteins, as well as to store (comprehensive
2D PAGE databases), communicate and interlink protein and DNA sequence
and mapping information from genome projects. Here we review the curr
ent status as well as applications of human and mouse proteomic 2D PAG
E databases that are being systematically constructed for the global a
nalysis of gene expression in both health and disease (http://biobase.
dk/cgi-bin/celis). Furthermore, we discuss the problems one faces when
using powerful proteomic technology to study heterogeneous tissue and
tumor biopsies, and emphasize the importance of building comprehensiv
e databases that contain a critical mass of information for both known
and novel proteins in normal and disease conditions, (C) 1998 Federat
ion of European Biochemical Societies.