Mammalian SP/KLF transcription factors: bring in the family.

The advent of the genome projects has provided new avenues to explore the question of how DNA sequence information is used appropriately by mammalian cells. Regulation of transcription is not the only, but is certainly a very important, mechanism involved in this process. We can now identify all the genes encoding transcription factors belonging to a certain class and study their biological functions in unprecedented detail through the use of an array of biomolecular tools. It is important to use rigorous and uniform definitions for the classification of transcription factors, because this helps us to comprehend the functions of transcription factor families in biological networks. Here, we propose an unambiguous nomenclature for the members of the Specificity Protein/Krüppel-like Factor (SP/KLF) transcription factor family.

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