Finding functional promoter motifs by computational methods: a word of caution.
The standard practice in the analysis of promoters is to select promoter regions of convenient length. This may lead to false results when searching for Transcription Factor Binding Sites (TFBSs), since the sequences may contain coding segments. In such cases, motif detection may single out motifs from the coding regions. The mapping of TFBSs to promoters may result in a misleading picture of 'promoter' content. We illustrate these issues using the example of histones H2A and H2B and show how such analysis could be misleading if care is not exercised to eliminate coding regions from the presumed promoter sequences.
Institute for Infocomm Research, 21 Heng Mui Kung Terrace, Singapore. rajesh@i2r.a-star.edu.sg
Rajesh
R
Chowdhary
Limsoon
L
Wong
Vladimir B
VB
Bajic
D020816:Amino Acid Motifs; D001665:Binding Sites; D019295:Computational Biology / Q000379:methods*; D006657:Histones / Q000737:chemistry; D006801:Humans; D008957:Models, Genetic; D011401:Promoter Regions, Genetic; D011485:Protein Binding; D017434:Protein Structure, Tertiary; D012984:Software; D014157:Transcription Factors / Q000378:metabolism; D024363:Transcription Initiation Site; D014158:Transcription, Genetic
D006657:Histones; D014157:Transcription Factors