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Gene Review:

TIFY1 - putative GATA transcription factor

Arabidopsis thaliana

Synonyms: GATA TRANSCRIPTION FACTOR 25, GATA25, T22A6.300, T22A6_300, ZIM, ...

Shikata, M. et al., Shikata, M. et al.

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High impact information on ZIM

In ZIM-overexpressing plants, XTH33 which is predicted to function in cell wall modification was detected as an up-regulated gene by microarray analysis, and this could account for the elongation phenotype [1].
The Arabidopsis gene ZIM encodes a putative transcription factor containing a novel GATA-type zinc-finger domain with a longer spacer between its two sets of conserved cysteine residues (C-X2-C-X20-C-X2-C) [1].
When ZIM was overexpressed using a CaMV 35S promoter in Arabidopsis, hypocotyls and petioles were elongated [1].
Transcriptional activation by ZIM was tested using a transient GAL4 fusion assay and measuring the expression of a luciferase reporter in tobacco BY-2 cells [2].
ZIM functioned as a transcriptional activator, and the transactivation domain was found to occur in its N-terminal acidic region [2].

References

Characterization of Arabidopsis ZIM, a member of a novel plant-specific GATA factor gene family. Shikata, M., Matsuda, Y., Ando, K., Nishii, A., Takemura, M., Yokota, A., Kohchi, T. J. Exp. Bot. (2004) [Pubmed]
Arabidopsis ZIM, a plant-specific GATA factor, can function as a transcriptional activator. Shikata, M., Takemura, M., Yokota, A., Kohchi, T. Biosci. Biotechnol. Biochem. (2003) [Pubmed]

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