Plant Transcription factor database - Universität Potsdam
version: 3.0

Oryza sativa subsp. japonica PLATZ Family

Description

Nagano et al. 2001: Complementary DNA encoding a DNA-binding protein, designated PLATZ1 (plant AT-rich sequence- and zinc-binding protein 1), was isolated from peas. The amino acid sequence of the protein is similar to those of other uncharacterized proteins predicted from the genome sequences of higher plants. However, no paralogous sequences have been found outside the plant kingdom. Multiple alignments among these paralogous proteins show that several cysteine and histidine residues are invariant, suggesting that these proteins are a novel class of zinc-dependent DNA-binding proteins with two distantly located regions, C-x(2)-H-x(11)-C-x(2)-C-x((4-5))-C-x(2)-C-x((3-7))-H-x(2)-H and C-x(2)-C-x((10-11))-C-x(3)-C. In an electrophoretic mobility shift assay, the zinc chelator 1,10-o-phenanthroline inhibited DNA binding, and two distant zinc-binding regions were required for DNA binding. A protein blot with (65)ZnCl(2) showed that both regions are required for zinc-binding activity. The PLATZ1 protein non-specifically binds to A/T-rich sequences, including the upstream region of the pea GTPase pra2 and plastocyanin petE genes. Expression of the PLATZ1 repressed those of the reporter constructs containing the coding sequence of luciferase gene driven by the cauliflower mosaic virus (CaMV) 35S90 promoter fused to the tandem repeat of the A/T-rich sequences. These results indicate that PLATZ1 is a novel class of plant-specific zinc-dependent DNA-binding protein responsible for A/T-rich sequence-mediated transcriptional repression.

Members of this family
  SHOULD possess PLATZ domain

Domain alignments

This family is also present in:

References

There are 21 gene models in this family



Gene modelDescriptionDomains
LOC_Os01g33350.1 zinc-binding protein, putative, expressed PLATZ
LOC_Os01g33370.1 zinc-binding protein, putative, expressed PLATZ
LOC_Os02g07650.1 zinc-binding protein, putative, expressed PLATZ
LOC_Os02g09070.1 zinc-binding protein, putative, expressed PLATZ
LOC_Os02g10000.1 zinc-binding protein, putative, expressed PLATZ
LOC_Os02g44260.1 zinc-binding protein, putative PLATZ
LOC_Os02g46610.1 zinc-binding protein, putative, expressed PLATZ
LOC_Os03g12440.1 zinc-binding protein, putative PLATZ
LOC_Os04g50120.1 zinc-binding protein, putative, expressed PLATZ
LOC_Os06g41930.1 zinc-binding protein, putative, expressed PLATZ
LOC_Os06g41930.2 zinc-binding protein, putative, expressed PLATZ
LOC_Os06g41930.3 zinc-binding protein, putative, expressed PLATZ
LOC_Os06g41930.4 zinc-binding protein, putative, expressed PLATZ
LOC_Os06g41930.5 zinc-binding protein, putative, expressed PLATZ
LOC_Os06g45540.1 zinc-binding protein, putative, expressed PLATZ
LOC_Os08g44620.1 zinc-binding protein, putative, expressed PLATZ
LOC_Os09g02790.1 zinc-binding protein, putative, expressed PLATZ
LOC_Os10g42410.1 zinc-binding protein, putative, expressed PLATZ
LOC_Os10g42410.2 zinc-binding protein, putative, expressed PLATZ
LOC_Os10g42410.3 zinc-binding protein, putative, expressed PLATZ
LOC_Os11g24130.1 zinc-binding protein, putative PLATZ

General references

Nagano, Y; Furuhashi, H; Inaba, T; Sasaki, Y. 2001. A novel class of plant-specific zinc-dependent DNA-binding protein that binds to A/T-rich DNA sequences. Nucleic Acids Res. 29(20):4097-105 PUBMEDID:11600698