A gene for neuronal plasticity in the mammalian brain: Zif268/Egr-1/NGFI-A/Krox-24/TIS8/ZENK?
Zif268 is a transcription regulatory protein, the product of an immediate early gene. Zif268 was originally described as inducible in cell cultures; however, it was later shown to be activated by a variety of stimuli, including ongoing synaptic activity in the adult brain. Recently, mice with experimentally mutated zif268 gene have been obtained and employed in neurobiological research. In this review we present a critical overview of Zif268 expression patterns in the naive brain and following neuronal stimulation as well as functional data with Zif268 mutants. In conclusion, we suggest that Zif268 expression and function should be considered in a context of neuronal activity that is tightly linked to neuronal plasticity.
Knapska
Ewelina
E
Department of Neurophysiology, Nencki Institute, Pasteura 3, 02-093 Warsaw, Poland.
Kaczmarek
Leszek
L
D000818:Animals; D001921:Brain / Q000502:physiology*; D004268:DNA-Binding Proteins / Q000502:physiology*; D051766:Early Growth Response Protein 1; D006801:Humans; D017874:Immediate-Early Proteins / Q000502:physiology*; D009473:Neuronal Plasticity / Q000235:genetics*; D014157:Transcription Factors / Q000502:physiology*
D004268:DNA-Binding Proteins; C497325:EGR1 protein, human; D051766:Early Growth Response Protein 1; D017874:Immediate-Early Proteins; D014157:Transcription Factors