Title :
Time series analysis of gene expression and location data
Author :
Yeang, Chen-Hsiang ; Jaakkola, Tommi
Author_Institution :
Artificial Intelligence Lab., MIT, Cambirdge, MA, USA
Abstract :
We develop a method for integrating time series expression profiles and factor-gene binding data to quantify dynamic aspects of gene regulation. We estimate latencies for transcription activation by explaining time correlations between gene expression profiles through available factor-gene binding information. The resulting aligned expression profiles are subsequently clustered and again combined with binding information to determine groups or subgroups of co-regulated genes. The predictions derived from this approach are consistent with existing results. Our analysis also provides several hypotheses not implicated in previous studies.
Keywords :
genetics; physiological models; time series; cluster models; clustering genes; data integration; dynamic expression models; edge delays estimation; location graph; principled framework; time correlations; transcription activation latencies; Artificial intelligence; Bioinformatics; Clustering algorithms; Clustering methods; DNA; Delay; Gene expression; Genomics; Physics computing; Time series analysis;
Conference_Titel :
Bioinformatics and Bioengineering, 2003. Proceedings. Third IEEE Symposium on
Print_ISBN :
0-7695-1907-5
DOI :
10.1109/BIBE.2003.1188967