Figure 1.

Clustering of ESTs found to be differentially expressed during fat cell differentiation. Shown is k-means clustering of 780 ESTs found to be more than twofold upregulated or downregulated at a minimum of four time points during fat cell differentiation. ESTs were grouped into 12 clusters with distinct expression profiles. Relative expression levels (log₂ ratios) for EST gene at different time points are shown and color coded according to the legend at the top (left) and expression profile (mean ± standard deviation) for each cluster (right). EST, expressed sequence tag.