PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Brassica napus
SRS Family
Species TF ID Description
GSBRNA2T00006662001SRS family protein
GSBRNA2T00008351001SRS family protein
GSBRNA2T00012403001SRS family protein
GSBRNA2T00027624001SRS family protein
GSBRNA2T00029035001SRS family protein
GSBRNA2T00040982001SRS family protein
GSBRNA2T00042992001SRS family protein
GSBRNA2T00046209001SRS family protein
GSBRNA2T00054078001SRS family protein
GSBRNA2T00064377001SRS family protein
GSBRNA2T00067176001SRS family protein
GSBRNA2T00068383001SRS family protein
GSBRNA2T00070034001SRS family protein
GSBRNA2T00071095001SRS family protein
GSBRNA2T00074491001SRS family protein
GSBRNA2T00078261001SRS family protein
GSBRNA2T00080238001SRS family protein
GSBRNA2T00081486001SRS family protein
GSBRNA2T00081651001SRS family protein
GSBRNA2T00083712001SRS family protein
GSBRNA2T00087578001SRS family protein
GSBRNA2T00090256001SRS family protein
GSBRNA2T00092749001SRS family protein
GSBRNA2T00099371001SRS family protein
GSBRNA2T00104181001SRS family protein
GSBRNA2T00106307001SRS family protein
GSBRNA2T00108990001SRS family protein
GSBRNA2T00121472001SRS family protein
GSBRNA2T00126439001SRS family protein
GSBRNA2T00129241001SRS family protein
GSBRNA2T00129563001SRS family protein
GSBRNA2T00131021001SRS family protein
GSBRNA2T00135717001SRS family protein
GSBRNA2T00137008001SRS family protein
GSBRNA2T00143720001SRS family protein
GSBRNA2T00144875001SRS family protein
SRS Family Introduction

SHI RELATED SEQUENCE(SRS), which encode proteins with a single zinc finger motif. The genes are members of a small gene family of putative transcription factors in which the SHORT INTERNODES (SHI) gene is found.

The predicted amino acid sequence of SHI has acidic and glutamine-rich stretches and shows sequence similarity over a putative zinc finger region to three presumptive Arabidopsis proteins. This suggests that SHI may act as a negative regulator of GA responses through transcriptional control.

The predicted SHI protein consists of 331 amino acids. A region containing six cysteine residues (amino acids 120 to 147) in a C-X2-C-X7-C-X4-C-X2-C-X7-C arrangement (where X is a variable amino acid) is suggested to make up a zinc finger domain similar to the Zn2Cys6 cluster found in the DNA binding region of the yeast transcriptional activator GAL4 (Kraulis et al. 1992 ). Two regions rich in glutamine residues were found adjacent to the zinc finger domain, as well as a short stretch of acidic residues in the C-terminal third of the SHI protein. These features have been found in transcription factor proteins and have been demonstrated to be important for their function as transcriptional activators (Mitchell and Tjian 1989 ). Furthermore, two putative nuclear localization signals (NLSs) were found in the SHI sequence. These are two basic stretches (amino acids 160 to 165 and 183 to 188) that conform to the consensus of the simian virus 40ĘClike "typical NLS" defined as four arginines and lysines within a region of six amino acids (Boulikas 1994 ; LaCasse and Lefebvre 1995 ).

Fridborg I, Kuusk S, Moritz T, Sundberg E.
The Arabidopsis dwarf mutant shi exhibits reduced gibberellin responses conferred by overexpression of a new putative zinc finger protein.
Plant Cell. 1999 Jun;11(6):1019-32.
PMID:10368174