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Plant-unique TZF motif. Sequence comparison of the highly conserved CCCH TZF motif (white letters on black background) and upstream 50 amino acids of Arabidopsis AtTZF and rice OsTZF genes using the ClustalW program (http://www.ebi.ac.uk/Tools/clustalw2/index.html). A conserved C-x5-H-x4-C-x3-H motif is highlighted by black dots, and two other conserved motifs, SHDWTEC and ARRRDPR, are boxed. [See online article for color version of this figure.]
