Multiple hydrophobic motifs in Arabidopsis CBF1 COOH-terminus provide functional redundancy in trans-activation.

Abstract excerpt

The Arabidopsis CBF proteins activate expression of a set of genes whose upstream regulatory sequences typically harbor one or more copies of the CRT/DRE low temperature cis-acting DNA regulatory element. Using domain swap experiments in both yeast and Arabidopsis we show that the NH3-terminal 115 amino acids direct CBF1 to target genes and the COOH-terminal 98 amino acids function in trans-activation. Mutational...

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