Tetramer of a 21-base pair synthetic element confers seed expression and transcriptional enhancement in response to water stress and abscisic acid.

Abstract excerpt

A conserved 21-base pair element, designated as hex-1, located between -180 and -160 of the wheat histone H3 promoter, is known to interact with two tobacco nuclear factors, activating sequence factor 1 and hex-1-specific binding factor. We have shown previously that a mutant sequence (hex-3), which differs from hex-1 by three base pairs, can no longer bind these two factors significantly. In the present work, we...

Topics

• Abscisic Acid
• Base Sequence
• DNA
• Desiccation
• Histones
• Molecular Sequence Data
• Mutation
• Organ Specificity
• Plant Proteins
• Plants, Toxic
• Promoter Regions, Genetic