Additional File 4.

The 118 high-quality position weight matrices (PWMs) compiled for the analysis. In each matrix the definition line starts with a '>' sign and an identifier (ID), followed by the description including the transcription factor (TF) name. A row represents a position in the motif sequence, and the four columns represent nucleotides A, C, G, T respectively. Each matrix was standardized such that its frequency sum for the four nucleotides at each position (row) is 1.0000. A blank line was added between every two matrices. One matrix (MA17) was excluded from the file via a manual examination due to ambiguous TF description for the matrix existing in JASPAR [78].

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Peng and Weselake BMC Genomics 2011 12:286   doi:10.1186/1471-2164-12-286