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Cell Mol Life Sci. 1998 Jul;54(7):619-27.

The ARF family of transcription factors and their role in plant hormone-responsive transcription.

Author information

1
Department of Biochemistry, University of Missouri, Columbia 65211, USA. bctguilf@muccmail.missouri.edu

Abstract

Auxin response factors or ARFs are a recently discovered family of transcription factors that bind with specificity to auxin response elements (AuxREs) in promoters of primary or early auxin-responsive genes. ARFs have an amino-terminal DNA-binding domain related to the carboxyl-terminal DNA-binding domain in the maize transactivator VIVIPAROUS1. All but one ARF identified to date contain a carboxyl-terminal protein-protein interaction domain that forms a putative amphipathic alpha-helix. A similar carboxyl-terminal protein-protein interaction domain is found in the Aux/IAA class of auxin-inducible proteins. Some ARFs contain transcriptional activation domains, while others contain repression domains. ARFs appear to play a pivotal role in auxin-regulated gene expression of primary response genes.

PMID:
9711229
DOI:
10.1007/s000180050190
[Indexed for MEDLINE]

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